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Papers by Amsalu Sisay

Research paper thumbnail of Grazing intensity effects on rangeland condition and tree diversity in Afar, northeastern Ethiopia

Research paper, 2023

This study assessed the effects of different grazing pressures (light, moderate and heavy) on ran... more This study assessed the effects of different grazing pressures (light, moderate and heavy) on rangeland condition and woody species diversity in northeastern Ethiopia. Rangeland condition was analyzed using common protocols for the assessment of semi-arid rangelands. A total of 4 grasses, 5 herbs, 1 sedge and 14 tree and/or shrub species were identified. Results show that grazing intensity had detrimental effects on condition of the rangeland, and caused undesirable changes in herbaceous species composition. The contribution of undesirable plants to herbaceous aboveground biomass was particularly high (40 %) compared to the 30 % contributed by highly desirable species. Nearly all measures of range condition were negatively affected by grazing. Grass composition, number of seedlings and age distribution, basal and litter cover, soil erosion and compaction decreased significantly as grazing intensity increased. Species richness and diversity (Hill numbers) of woody plants were reduced significantly by grazing. The overall condition of the rangeland was generally poor. The pastoralists perceived that recurring droughts, heavy continuous grazing and inappropriate management interventions, and bush encroachment were the main contributing factors that led to overgrazing and rangeland deterioration in the area. In conclusion, our study shows that livestock grazing in northeastern Ethiopia degrade range condition and woody vegetation, and its effects are sever under moderate and heavy grazing. Management measures such as resting of the rangelands preferably with stock exclusions for 6-12 months or protecting heavily degraded or sensitive areas from livestock activity and reseeding may be the viable options to mitigate declines in range conditions.

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Research paper thumbnail of Short Chain Fatty Acid Production, Organic Matter Digestibility and Metabolisable Energy Content of Indigenous Browses from Ethiopian Rift Valley

Research Paper, 2018

This study was conducted to estimate the organic matter digestibility, metabolisable energy and s... more This study was conducted to estimate the organic matter digestibility, metabolisable energy and short chain fatty acid production of indigenous browses from rift valley of Ethiopia using in vitro gas production technique. Leaves of Acacia seyal, Acacia senegal, Acacia tortilis, Prosopis juliflora, Millettia ferruginea, Vernonia amygadalina, Croton macrostachyus and Cordia africana were collected, oven-dried, ground and analyzed for their chemical composition and in vitro gas production characteristics. General linear model procedure of SAS, Version 9.2 was used for statistical analysis. Crude protein (CP) was highest (P<0.05) for Acacia senegal and lowest for Acacia seyal. The neutral detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL) contents were highest for Cordia africana and lowest for Acacia seyal. The highest (P<0.05) rate of gas production (c) and potential gas production (a+b) were observed for Acacia seyal and the least were for Cordia Africana. The highest (P<0.05) organic matter digestibility was observed for Acacia seyal and Vernonia amygadalina while the lowest (P<0.05) was for Cordia africana. The highest (P<0.05) metabolisable energy (ME) value was for Acacia senegal, Vernonia amygadalina and Acacia seyal while the lowest (P<0.05) was for Cordia africana. Short chained fatty acid (SCFA) was highest for Acacia seyal and lowest for Cordia africana. The rate of gas production (c) and potential gas production (a+b) had positive and significant (P<0.001) correlation with CP and negative correlation with fiber (NDF, ADF) and condensed tannin (CT) contents of browses. All browse species studied had high CP contents, sufficient to be considered as high protein forages that can be used as supplements for low quality roughages. The high potential gas production (a+ b), highest metabolisable energy (ME) and SCFA production of Acacia seyal, coupled with its fastest rate of fermentation (c) would make the browse potential supplement of low quality roughages.

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Research paper thumbnail of Effects of supplementation of different indigenous species of browses to Arsi-Bale yearling goats on feed intake, growth performance, and helminthes loads

paper, 2022

This study was conducted to evaluate the effects of browse tree leaves meals on growth performanc... more This study was conducted to evaluate the effects of browse tree leaves meals on growth performance and parasite load of naturally parasitized yearling goats. Thirty-six Arsi-Bale yearling bucks which were naturally parasitized with helminths were randomly allocated to one of the following feeding treatments; T1 = Chloris gayana grass hay ad lib + 100g concentrate, T2 = T1 + dried 100g of Acacia tortilis leaves, T3 = T1 + dried 100g of Acacia seyal leaves, T4 = T1 + dried 100g of Acacia senegal leaves, T5 = T1 + dried 100g of Millettia ferruginea leaves and T6 = T1 + dried 100g of Vernonia amygadalina leaves. Goats were fed on corresponding diets for 70 days. Fecal egg count and body weight changes were recorded every 14 days. Higher feed conversion efficiency was observed in goats supplemented with dried browse tree leaves of Acacia seyal (T3), Millettia ferruginea (T5), and Vernonia amygadalina (T6). All supplemented goats had significantly (p<0.05) lower fecal egg count (FEC) at day 70 and grew significantly (p<0.05) faster than the control group. Goats supplemented with dried browse tree leaves of Acacia seyal, Millettia ferruginea, and Vernonia amygadalina grew faster than goats supplemented with other dried browse tree leaves. A rapid and significant reduction of FEC was observed in goats supplemented with Millettia ferruginea starting from day 14 and the lowest (p<0.05) value was attained at day 70 after treatment. Similarly, goats supplemented with Vernonia amygadalina showed an accelerated reduction of FEC starting from day 28 and attained the lowest (p<0.05) value at day 70 after treatment. Goats supplemented with Millettia ferruginea (T5) and Vernonia amygadalina (T6) had the lowest (p<0.05) FEC at all times after supplementation and grew faster than the other groups. The rapid and accelerated reduction of FECs and fastest growth rate observed in goats supplemented with Millettia ferruginea and Vernonia amygadalina indicated that these

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Research paper thumbnail of Effects of supplementation of different indigenous species of browses to Arsi-Bale yearling goats on feed intake, growth performance, and helminthes loads

Paper, 2022

This study was conducted to evaluate the effects of browse tree leaves meals on growth performanc... more This study was conducted to evaluate the effects of browse tree leaves meals on growth performance and parasite load of naturally parasitized yearling goats. Thirty-six Arsi-Bale yearling bucks which were naturally parasitized with helminths were randomly allocated to one of the following feeding treatments; T1 = Chloris gayana grass hay ad lib + 100g concentrate, T2 = T1 + dried 100g of Acacia tortilis leaves, T3 = T1 + dried 100g of Acacia seyal leaves, T4 = T1 + dried 100g of Acacia senegal leaves, T5 = T1 + dried 100g of Millettia ferruginea leaves and T6 = T1 + dried 100g of Vernonia amygadalina leaves. Goats were fed on corresponding diets for 70 days. Fecal egg count and body weight changes were recorded every 14 days. Higher feed conversion efficiency was observed in goats supplemented with dried browse tree leaves of Acacia seyal (T3), Millettia ferruginea (T5), and Vernonia amygadalina (T6). All supplemented goats had significantly (p<0.05) lower fecal egg count (FEC) at day 70 and grew significantly (p<0.05) faster than the control group. Goats supplemented with dried browse tree leaves of Acacia seyal, Millettia ferruginea, and Vernonia amygadalina grew faster than goats supplemented with other dried browse tree leaves. A rapid and significant reduction of FEC was observed in goats supplemented with Millettia ferruginea starting from day 14 and the lowest (p<0.05) value was attained at day 70 after treatment. Similarly, goats supplemented with Vernonia amygadalina showed an accelerated reduction of FEC starting from day 28 and attained the lowest (p<0.05) value at day 70 after treatment. Goats supplemented with Millettia ferruginea (T5) and Vernonia amygadalina (T6) had the lowest (p<0.05) FEC at all times after supplementation and grew faster than the other groups. The rapid and accelerated reduction of FECs and fastest growth rate observed in goats supplemented with Millettia ferruginea and Vernonia amygadalina indicated that these

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Research paper thumbnail of Methane Production Potential and Nutritive Value of Indigenous Browses from mid Rift Valley of Ethiopia

Research Article, 2017

bjective: This study was conducted to evaluate the chemical composition, in vitro gas and methane... more bjective: This study was conducted to evaluate the chemical composition, in vitro gas and methane (CH4) production of eight
tannin-containing browses species from Rift Valley of Ethiopia. Materials and Methods: Leaves of Acacia seyal, Acacia senegal, Acacia
tortilis, Prosopis juliflora, Millettia ferruginea, Vernonia amygadalina, Croton macrostachyus and Cordia africana were collected,
oven-dried and ground to 1.0 mm for in vitro gas and chemical analysis. General linier model procedure of SAS, Version 9.2 was used for
statistical analysis. Results: The highest crude protein (CP) contents of the browses ranged from 13-29% was observed for Acacia senegal
and lowest for Acacia seyal. The nutrient detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL) were highest
for Cordia africana and lowest for Acacia seyal. The CT content for Acacia seyal, Acacia tortilis and Millettia ferruginea were higher
(p<0.05) than the remaining species. Acacia seyal produced the highest gas volume and Prosopis juliflora produced the lowest. The
lowest (p<0.05) CH4 percentage of total gas was recorded from Acacia seyal. The CH4 percentage from Cordia africana was higher (p<0.05)
than Acacia seyal and Acacia tortilis. Inclusion of polyethylene glycol (PEG) significantly improved gas production and organic matter
digestibility (OMD) of browses. Conclusion: The high gas production and OMD of Acacia seyal, coupled with its lowest percent of CH4 of
total gas produced during fermentation would make the browse potential supplement of low quality roughages while reducing enteric
CH4 emissions.

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Research paper thumbnail of Effects of supplementation of different indigenous species of browses to Arsi-Bale yearling goats on feed intake, growth performance, and helminthes loads

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Research paper thumbnail of Growth performance and carcass characteristics of Arsi-Bale goats castrated at different ages

Journal of Cell and Animal Biology, Oct 30, 2008

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Research paper thumbnail of Grazing intensity effects on rangeland condition and tree diversity in Afar, northeastern Ethiopia

Heliyon

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Research paper thumbnail of Effects of supplementation of different indigenous species of browses to Arsi-Bale yearling goats on feed intake, growth performance, and helminthes loads

Ethiopian Veterinary Journal, Aug 29, 2022

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Research paper thumbnail of Growth performance and carcass characteristics of Arsi-Bale goats castrated at different ages

The study was conducted on thirty six male Arsi-Bale kids of 10.56±0.39kg initial body weight for... more The study was conducted on thirty six male Arsi-Bale kids of 10.56±0.39kg initial body weight for 15 months to investigate the effects of age at castration on growth performance and carcass characteristics. The treatments were entire/intact (T1), castration at the month of age (T2), castration at six month of age (T3) and castration at nine month of age (T4). All castrated and entire goats were browsed during day time and supplemented with concentrated at 2.5% of body weight in DM per day which adjusted with changes in their body weight. Five goats from each treatment were randomly selected and slaughtered for carcass evaluation. Age at castration had no significant effect on body weight, total weight gain (TG), overall average daily gain (ADG) and linear body measurement. T1 and T4 had significantly (

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Research paper thumbnail of Carcass and meat quality characteristics of Arsi-Bale goats supplemented with different levels of air-dried Moringa stenopetala leaf

Journal of Agriculture and Rural Development in the Tropics and Subtropics, 2016

This study was conducted to assess the effect of air-dried Moringa stenopetala leaf (MSL) supplem... more This study was conducted to assess the effect of air-dried Moringa stenopetala leaf (MSL) supplementation on carcass components and meat quality in Arsi-Bale goats. A total of 24 yearling goats with initial body weight of 13.6+/-0.25 kg were randomly divided into four treatments with six goats each. All goats received a basal diet of natural grass hay ad libitum and 340 g head^(−1) d^(−1) concentrate. The treatment diets contain a control diet without supplementation (T1) and diets supplemented with MSL at a rate of 120 g head^(−1) d^(−1) (T2), 170 g head^(−1) d^(−1) (T3) and 220 g head^(−1) d^(−1) (T4). The results indicated that the average slaughter weight of goats reared on T3 and T4 was 18.2 and 18.3 kg, respectively, being ( P <0.05) higher than those of T1 (15.8 kg) and T2 (16.5 kg). Goats fed on T3 and T4 diets had higher ( P <0.05) daily weight gain compared with those of T1 and T2. The hot carcass weight in goats reared on T3 and T4 diets was 6.40 and 7.30 kg, respec...

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Research paper thumbnail of Anthelminthic effects of extracts of indigenous browses from mid rift valley of Ethiopia

Ethiopian Veterinary Journal

This study was conducted to evaluate the potential anthelminthic properties of extracts of leaves... more This study was conducted to evaluate the potential anthelminthic properties of extracts of leaves of indigenous browses (Acacia seyal, Acacia senegal, Acacia tortilis, Millettia ferruginea, and Vernonia amygadalina) based on three in vitro assays. Acetone extracts of browses at different concentrations (75 to 1200 μg/ml, for egg and larvae and 100mg/ml for an adult) were tested on three developmental stages of Haemonchus contortus (eggs, infective larvae, and adult worms) using egg hatch assay (EHA), larval migration inhibition assay (LMIA) and adult worm motility inhibition assay (AMIA). Significant effects were obtained with all five browses but differences were observed depending on the parasitic stages. The effects of five browse extracts on egg hatching were concentration-dependent, the highest (P<0.05) egg hatch inhibition rate was observed at 1200 μg/ml concentration for all browses. All extracts had a higher effect (P<0.01) than that of the negative control, phosphate ...

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Research paper thumbnail of Growth performance and carcass characteristics of Arsi-Bale goats castrated at different ages

2 Abstract: The study was conducted on thirty six male Arsi-Bale kids of 10.56±0.39kg initial bod... more 2 Abstract: The study was conducted on thirty six male Arsi-Bale kids of 10.56±0.39kg initial body weight for 15 months to investigate the effects of age at castration on growth performance and carcass characteristics. The treatments were entire/intact (T1), castration at three month of age (T2), castration at six month of age (T3) and castration at nine month of age (T4). All castrated and entire goats were browsed during day time and supplemented with concentrate at 2.5% of body weight in DM per day which adjusted with changes in their body weight. Five goats from each treatment were randomly selected and slaughtered for carcass evaluation. Age at castration had no significant effect on body weight, total weight gain (TG), overall average daily gain (ADG) and linear body measurements. T1 and T4 had significantly (P<0.05) higher ADG (g/day) (113.73±3.53 and 108.50±5.23, respectively) than T2 (92.16±6.20) and T3 (92.16±5.72) at 9-12 months of age. There were no significant differ...

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Research paper thumbnail of Effects of four different basal diets on the carcass composition of finishing Borana bulls

Twenty four Borana bulls (average weight 218 ± 6.3 kg) were randomly assigned to 4 finishing diet... more Twenty four Borana bulls (average weight 218 ± 6.3 kg) were randomly assigned to 4 finishing diets to

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Research paper thumbnail of Short Chain Fatty Acid Production, Organic Matter Digestibility and Metabolisable Energy Content of Indigenous Browses from Ethiopian Rift Valley

This study was conducted to estimate the organic matter digestibility, metabolisable energy and s... more This study was conducted to estimate the organic matter digestibility, metabolisable energy and short chain fatty acid production of indigenous browses from rift valley of Ethiopia using in vitro gas production technique. Leaves of Acacia seyal, Acacia senegal, Acacia tortilis, Prosopis juliflora, Millettia ferruginea, Vernonia amygadalina, Croton macrostachyus and Cordia africana were collected, oven-dried, ground and analyzed for their chemical composition and in vitro gas production characteristics. General linear model procedure of SAS, Version 9.2 was used for statistical analysis. The highest (P<0.05) rate of gas production (c) and potential gas production (a+b) were observed for Acacia seyal and the least were for Cordia Africana. The highest (P<0.05) organic matter digestibility was observed for Acacia seyal and Vernonia amygadalina while the lowest (P<0.05) was for Cordia africana. The highest (P<0.05) metabolisable energy (ME) value was for Acacia senegal, Vern...

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Research paper thumbnail of Study on gender distribution of ownership of animal drawn carts and its effect on women life in Adami Tullu and Dugda Bora Districts

Abstract A survey work was conducted in Adami Tulu and Dugda Bora districts of East Shoa zone to ... more Abstract A survey work was conducted in Adami Tulu and Dugda Bora districts of East Shoa zone to study the gender distribution of ownership of donkey drawn carts and its effect on women life. In the study area about 86% of the households were male headed and only ...

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Research paper thumbnail of Growth Performance of Arsi-Bale Kids Supplemented with Different Levels of Concentrate

African Journal of Livestock Extension, 2004

A feeding trail was conducted at Adami Tulu Research Center on Arsi-Bale weaned kids to see the e... more A feeding trail was conducted at Adami Tulu Research Center on Arsi-Bale weaned kids to see the effect of different levels of concentrate supplementation and determine optimum level of supplementation. Grazing kids were supplemented with four different levels (0, 150, 300, and 450 grams) of concentrate. Kids supplemented with high level of supplement (450g/d) have grown at a fastest (P 0.05). Increasing level of supplement from 300 g to 450 g had significantly (P African Journal of Livestock Extension Vol.3 2004: 82-86

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Research paper thumbnail of Effects of four different basal diets on the carcass composition of finishing Borana bulls

Twenty four Borana bulls (average weight 218 ± 6.3 kg) were randomly assigned to 4 finishing diet... more Twenty four Borana bulls (average weight 218 ± 6.3 kg) were randomly assigned to 4 finishing diets to study the effects of basal diets on carcass composition. Diets were: R1 (teff straw 30%, local hay 10%, haricot bean straw 10%, molasses 20%, corn grain 20% and haricot bean grain 10%), R2 (teff straw 10%, haricot bean straw 20%, maize stover 10%, molasses 15%, corn grain 25%, noug cake 10% and linseed cake 10%), R3 (teff straw 10%, local hay 20%, molasses 25%, wheat bran 15% and wheat middling 30%) and R4 (teff straw 20%, molasses 30%, wheat bran 20% and wheat middling 30%). Animals were individually fed for 90 days at the recommended level of 3% of body weight. Results showed that, compared to other diets, R1 resulted in a significantly lower hot carcass weight (98.2 ± 18.4, vs 146.8 ± 6.7, 135.2 ± 8.1 and 135.2 ± 3.2, for R2, R3 and R4, respectively). Similar trends were observed for kidney fat, hump, scrotal fat weights and rib eye area. There was no significant difference in he...

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Research paper thumbnail of Growth performance of Boran cattle and their Simmental crosses in Ethiopia 188

Calf records on 188 Boran and 5 grades of Simmental x Boran crossbreds were analyzed for the effe... more Calf records on 188 Boran and 5 grades of Simmental x Boran crossbreds were analyzed for the effect of Simmental breeding and other factors on pre- and post-weaning growth traits in Ethiopia. Crossbred calves were significantly (P < 0.05) heavier at birth than purebred Boran and birth weights increased with increasing levels of Simmental blood. Crossbred calves with 50% Simmental blood had the heaviest (P < 0.05) weight at all ages after birth. Crossing Boran cattle with Simmental breeds improved growth performances of calves up to a maximum with 50% Simmental blood. Male calves were significantly (P < 0.01) heavier at birth and at all other ages (P < 0.05) than female calves, and they grew 6.2 and 10% faster than females during pre- and post-weaning periods, respectively. Calves born in the wet season were heavier (P < 0.05) than dry-season calves at weaning age. Age of dam significantly (P < 0.05) affected pre-weaning growth rate and weaning weights of calves in ...

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Research paper thumbnail of Herbaceous species composition, dry matter production and condition of the major grazing areas in the mid rift valley of Ethiopia

A vegetation inventory was conducted in the Mid Rift Valley of Ethiopia to determine the herbaceo... more A vegetation inventory was conducted in the Mid Rift Valley of Ethiopia to determine the herbaceous species composition, dry matter production and range condition of different grazing areas so as to recommend the possible management option in improve grazing areas of the ...

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Research paper thumbnail of Grazing intensity effects on rangeland condition and tree diversity in Afar, northeastern Ethiopia

Research paper, 2023

This study assessed the effects of different grazing pressures (light, moderate and heavy) on ran... more This study assessed the effects of different grazing pressures (light, moderate and heavy) on rangeland condition and woody species diversity in northeastern Ethiopia. Rangeland condition was analyzed using common protocols for the assessment of semi-arid rangelands. A total of 4 grasses, 5 herbs, 1 sedge and 14 tree and/or shrub species were identified. Results show that grazing intensity had detrimental effects on condition of the rangeland, and caused undesirable changes in herbaceous species composition. The contribution of undesirable plants to herbaceous aboveground biomass was particularly high (40 %) compared to the 30 % contributed by highly desirable species. Nearly all measures of range condition were negatively affected by grazing. Grass composition, number of seedlings and age distribution, basal and litter cover, soil erosion and compaction decreased significantly as grazing intensity increased. Species richness and diversity (Hill numbers) of woody plants were reduced significantly by grazing. The overall condition of the rangeland was generally poor. The pastoralists perceived that recurring droughts, heavy continuous grazing and inappropriate management interventions, and bush encroachment were the main contributing factors that led to overgrazing and rangeland deterioration in the area. In conclusion, our study shows that livestock grazing in northeastern Ethiopia degrade range condition and woody vegetation, and its effects are sever under moderate and heavy grazing. Management measures such as resting of the rangelands preferably with stock exclusions for 6-12 months or protecting heavily degraded or sensitive areas from livestock activity and reseeding may be the viable options to mitigate declines in range conditions.

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Research paper thumbnail of Short Chain Fatty Acid Production, Organic Matter Digestibility and Metabolisable Energy Content of Indigenous Browses from Ethiopian Rift Valley

Research Paper, 2018

This study was conducted to estimate the organic matter digestibility, metabolisable energy and s... more This study was conducted to estimate the organic matter digestibility, metabolisable energy and short chain fatty acid production of indigenous browses from rift valley of Ethiopia using in vitro gas production technique. Leaves of Acacia seyal, Acacia senegal, Acacia tortilis, Prosopis juliflora, Millettia ferruginea, Vernonia amygadalina, Croton macrostachyus and Cordia africana were collected, oven-dried, ground and analyzed for their chemical composition and in vitro gas production characteristics. General linear model procedure of SAS, Version 9.2 was used for statistical analysis. Crude protein (CP) was highest (P<0.05) for Acacia senegal and lowest for Acacia seyal. The neutral detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL) contents were highest for Cordia africana and lowest for Acacia seyal. The highest (P<0.05) rate of gas production (c) and potential gas production (a+b) were observed for Acacia seyal and the least were for Cordia Africana. The highest (P<0.05) organic matter digestibility was observed for Acacia seyal and Vernonia amygadalina while the lowest (P<0.05) was for Cordia africana. The highest (P<0.05) metabolisable energy (ME) value was for Acacia senegal, Vernonia amygadalina and Acacia seyal while the lowest (P<0.05) was for Cordia africana. Short chained fatty acid (SCFA) was highest for Acacia seyal and lowest for Cordia africana. The rate of gas production (c) and potential gas production (a+b) had positive and significant (P<0.001) correlation with CP and negative correlation with fiber (NDF, ADF) and condensed tannin (CT) contents of browses. All browse species studied had high CP contents, sufficient to be considered as high protein forages that can be used as supplements for low quality roughages. The high potential gas production (a+ b), highest metabolisable energy (ME) and SCFA production of Acacia seyal, coupled with its fastest rate of fermentation (c) would make the browse potential supplement of low quality roughages.

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Research paper thumbnail of Effects of supplementation of different indigenous species of browses to Arsi-Bale yearling goats on feed intake, growth performance, and helminthes loads

paper, 2022

This study was conducted to evaluate the effects of browse tree leaves meals on growth performanc... more This study was conducted to evaluate the effects of browse tree leaves meals on growth performance and parasite load of naturally parasitized yearling goats. Thirty-six Arsi-Bale yearling bucks which were naturally parasitized with helminths were randomly allocated to one of the following feeding treatments; T1 = Chloris gayana grass hay ad lib + 100g concentrate, T2 = T1 + dried 100g of Acacia tortilis leaves, T3 = T1 + dried 100g of Acacia seyal leaves, T4 = T1 + dried 100g of Acacia senegal leaves, T5 = T1 + dried 100g of Millettia ferruginea leaves and T6 = T1 + dried 100g of Vernonia amygadalina leaves. Goats were fed on corresponding diets for 70 days. Fecal egg count and body weight changes were recorded every 14 days. Higher feed conversion efficiency was observed in goats supplemented with dried browse tree leaves of Acacia seyal (T3), Millettia ferruginea (T5), and Vernonia amygadalina (T6). All supplemented goats had significantly (p<0.05) lower fecal egg count (FEC) at day 70 and grew significantly (p<0.05) faster than the control group. Goats supplemented with dried browse tree leaves of Acacia seyal, Millettia ferruginea, and Vernonia amygadalina grew faster than goats supplemented with other dried browse tree leaves. A rapid and significant reduction of FEC was observed in goats supplemented with Millettia ferruginea starting from day 14 and the lowest (p<0.05) value was attained at day 70 after treatment. Similarly, goats supplemented with Vernonia amygadalina showed an accelerated reduction of FEC starting from day 28 and attained the lowest (p<0.05) value at day 70 after treatment. Goats supplemented with Millettia ferruginea (T5) and Vernonia amygadalina (T6) had the lowest (p<0.05) FEC at all times after supplementation and grew faster than the other groups. The rapid and accelerated reduction of FECs and fastest growth rate observed in goats supplemented with Millettia ferruginea and Vernonia amygadalina indicated that these

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Research paper thumbnail of Effects of supplementation of different indigenous species of browses to Arsi-Bale yearling goats on feed intake, growth performance, and helminthes loads

Paper, 2022

This study was conducted to evaluate the effects of browse tree leaves meals on growth performanc... more This study was conducted to evaluate the effects of browse tree leaves meals on growth performance and parasite load of naturally parasitized yearling goats. Thirty-six Arsi-Bale yearling bucks which were naturally parasitized with helminths were randomly allocated to one of the following feeding treatments; T1 = Chloris gayana grass hay ad lib + 100g concentrate, T2 = T1 + dried 100g of Acacia tortilis leaves, T3 = T1 + dried 100g of Acacia seyal leaves, T4 = T1 + dried 100g of Acacia senegal leaves, T5 = T1 + dried 100g of Millettia ferruginea leaves and T6 = T1 + dried 100g of Vernonia amygadalina leaves. Goats were fed on corresponding diets for 70 days. Fecal egg count and body weight changes were recorded every 14 days. Higher feed conversion efficiency was observed in goats supplemented with dried browse tree leaves of Acacia seyal (T3), Millettia ferruginea (T5), and Vernonia amygadalina (T6). All supplemented goats had significantly (p<0.05) lower fecal egg count (FEC) at day 70 and grew significantly (p<0.05) faster than the control group. Goats supplemented with dried browse tree leaves of Acacia seyal, Millettia ferruginea, and Vernonia amygadalina grew faster than goats supplemented with other dried browse tree leaves. A rapid and significant reduction of FEC was observed in goats supplemented with Millettia ferruginea starting from day 14 and the lowest (p<0.05) value was attained at day 70 after treatment. Similarly, goats supplemented with Vernonia amygadalina showed an accelerated reduction of FEC starting from day 28 and attained the lowest (p<0.05) value at day 70 after treatment. Goats supplemented with Millettia ferruginea (T5) and Vernonia amygadalina (T6) had the lowest (p<0.05) FEC at all times after supplementation and grew faster than the other groups. The rapid and accelerated reduction of FECs and fastest growth rate observed in goats supplemented with Millettia ferruginea and Vernonia amygadalina indicated that these

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Research paper thumbnail of Methane Production Potential and Nutritive Value of Indigenous Browses from mid Rift Valley of Ethiopia

Research Article, 2017

bjective: This study was conducted to evaluate the chemical composition, in vitro gas and methane... more bjective: This study was conducted to evaluate the chemical composition, in vitro gas and methane (CH4) production of eight
tannin-containing browses species from Rift Valley of Ethiopia. Materials and Methods: Leaves of Acacia seyal, Acacia senegal, Acacia
tortilis, Prosopis juliflora, Millettia ferruginea, Vernonia amygadalina, Croton macrostachyus and Cordia africana were collected,
oven-dried and ground to 1.0 mm for in vitro gas and chemical analysis. General linier model procedure of SAS, Version 9.2 was used for
statistical analysis. Results: The highest crude protein (CP) contents of the browses ranged from 13-29% was observed for Acacia senegal
and lowest for Acacia seyal. The nutrient detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL) were highest
for Cordia africana and lowest for Acacia seyal. The CT content for Acacia seyal, Acacia tortilis and Millettia ferruginea were higher
(p<0.05) than the remaining species. Acacia seyal produced the highest gas volume and Prosopis juliflora produced the lowest. The
lowest (p<0.05) CH4 percentage of total gas was recorded from Acacia seyal. The CH4 percentage from Cordia africana was higher (p<0.05)
than Acacia seyal and Acacia tortilis. Inclusion of polyethylene glycol (PEG) significantly improved gas production and organic matter
digestibility (OMD) of browses. Conclusion: The high gas production and OMD of Acacia seyal, coupled with its lowest percent of CH4 of
total gas produced during fermentation would make the browse potential supplement of low quality roughages while reducing enteric
CH4 emissions.

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Research paper thumbnail of Effects of supplementation of different indigenous species of browses to Arsi-Bale yearling goats on feed intake, growth performance, and helminthes loads

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Growth performance and carcass characteristics of Arsi-Bale goats castrated at different ages

Journal of Cell and Animal Biology, Oct 30, 2008

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Research paper thumbnail of Grazing intensity effects on rangeland condition and tree diversity in Afar, northeastern Ethiopia

Heliyon

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Research paper thumbnail of Effects of supplementation of different indigenous species of browses to Arsi-Bale yearling goats on feed intake, growth performance, and helminthes loads

Ethiopian Veterinary Journal, Aug 29, 2022

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Research paper thumbnail of Growth performance and carcass characteristics of Arsi-Bale goats castrated at different ages

The study was conducted on thirty six male Arsi-Bale kids of 10.56±0.39kg initial body weight for... more The study was conducted on thirty six male Arsi-Bale kids of 10.56±0.39kg initial body weight for 15 months to investigate the effects of age at castration on growth performance and carcass characteristics. The treatments were entire/intact (T1), castration at the month of age (T2), castration at six month of age (T3) and castration at nine month of age (T4). All castrated and entire goats were browsed during day time and supplemented with concentrated at 2.5% of body weight in DM per day which adjusted with changes in their body weight. Five goats from each treatment were randomly selected and slaughtered for carcass evaluation. Age at castration had no significant effect on body weight, total weight gain (TG), overall average daily gain (ADG) and linear body measurement. T1 and T4 had significantly (

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Research paper thumbnail of Carcass and meat quality characteristics of Arsi-Bale goats supplemented with different levels of air-dried Moringa stenopetala leaf

Journal of Agriculture and Rural Development in the Tropics and Subtropics, 2016

This study was conducted to assess the effect of air-dried Moringa stenopetala leaf (MSL) supplem... more This study was conducted to assess the effect of air-dried Moringa stenopetala leaf (MSL) supplementation on carcass components and meat quality in Arsi-Bale goats. A total of 24 yearling goats with initial body weight of 13.6+/-0.25 kg were randomly divided into four treatments with six goats each. All goats received a basal diet of natural grass hay ad libitum and 340 g head^(−1) d^(−1) concentrate. The treatment diets contain a control diet without supplementation (T1) and diets supplemented with MSL at a rate of 120 g head^(−1) d^(−1) (T2), 170 g head^(−1) d^(−1) (T3) and 220 g head^(−1) d^(−1) (T4). The results indicated that the average slaughter weight of goats reared on T3 and T4 was 18.2 and 18.3 kg, respectively, being ( P <0.05) higher than those of T1 (15.8 kg) and T2 (16.5 kg). Goats fed on T3 and T4 diets had higher ( P <0.05) daily weight gain compared with those of T1 and T2. The hot carcass weight in goats reared on T3 and T4 diets was 6.40 and 7.30 kg, respec...

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Research paper thumbnail of Anthelminthic effects of extracts of indigenous browses from mid rift valley of Ethiopia

Ethiopian Veterinary Journal

This study was conducted to evaluate the potential anthelminthic properties of extracts of leaves... more This study was conducted to evaluate the potential anthelminthic properties of extracts of leaves of indigenous browses (Acacia seyal, Acacia senegal, Acacia tortilis, Millettia ferruginea, and Vernonia amygadalina) based on three in vitro assays. Acetone extracts of browses at different concentrations (75 to 1200 μg/ml, for egg and larvae and 100mg/ml for an adult) were tested on three developmental stages of Haemonchus contortus (eggs, infective larvae, and adult worms) using egg hatch assay (EHA), larval migration inhibition assay (LMIA) and adult worm motility inhibition assay (AMIA). Significant effects were obtained with all five browses but differences were observed depending on the parasitic stages. The effects of five browse extracts on egg hatching were concentration-dependent, the highest (P<0.05) egg hatch inhibition rate was observed at 1200 μg/ml concentration for all browses. All extracts had a higher effect (P<0.01) than that of the negative control, phosphate ...

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Research paper thumbnail of Growth performance and carcass characteristics of Arsi-Bale goats castrated at different ages

2 Abstract: The study was conducted on thirty six male Arsi-Bale kids of 10.56±0.39kg initial bod... more 2 Abstract: The study was conducted on thirty six male Arsi-Bale kids of 10.56±0.39kg initial body weight for 15 months to investigate the effects of age at castration on growth performance and carcass characteristics. The treatments were entire/intact (T1), castration at three month of age (T2), castration at six month of age (T3) and castration at nine month of age (T4). All castrated and entire goats were browsed during day time and supplemented with concentrate at 2.5% of body weight in DM per day which adjusted with changes in their body weight. Five goats from each treatment were randomly selected and slaughtered for carcass evaluation. Age at castration had no significant effect on body weight, total weight gain (TG), overall average daily gain (ADG) and linear body measurements. T1 and T4 had significantly (P<0.05) higher ADG (g/day) (113.73±3.53 and 108.50±5.23, respectively) than T2 (92.16±6.20) and T3 (92.16±5.72) at 9-12 months of age. There were no significant differ...

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Research paper thumbnail of Effects of four different basal diets on the carcass composition of finishing Borana bulls

Twenty four Borana bulls (average weight 218 ± 6.3 kg) were randomly assigned to 4 finishing diet... more Twenty four Borana bulls (average weight 218 ± 6.3 kg) were randomly assigned to 4 finishing diets to

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Research paper thumbnail of Short Chain Fatty Acid Production, Organic Matter Digestibility and Metabolisable Energy Content of Indigenous Browses from Ethiopian Rift Valley

This study was conducted to estimate the organic matter digestibility, metabolisable energy and s... more This study was conducted to estimate the organic matter digestibility, metabolisable energy and short chain fatty acid production of indigenous browses from rift valley of Ethiopia using in vitro gas production technique. Leaves of Acacia seyal, Acacia senegal, Acacia tortilis, Prosopis juliflora, Millettia ferruginea, Vernonia amygadalina, Croton macrostachyus and Cordia africana were collected, oven-dried, ground and analyzed for their chemical composition and in vitro gas production characteristics. General linear model procedure of SAS, Version 9.2 was used for statistical analysis. The highest (P<0.05) rate of gas production (c) and potential gas production (a+b) were observed for Acacia seyal and the least were for Cordia Africana. The highest (P<0.05) organic matter digestibility was observed for Acacia seyal and Vernonia amygadalina while the lowest (P<0.05) was for Cordia africana. The highest (P<0.05) metabolisable energy (ME) value was for Acacia senegal, Vern...

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Research paper thumbnail of Study on gender distribution of ownership of animal drawn carts and its effect on women life in Adami Tullu and Dugda Bora Districts

Abstract A survey work was conducted in Adami Tulu and Dugda Bora districts of East Shoa zone to ... more Abstract A survey work was conducted in Adami Tulu and Dugda Bora districts of East Shoa zone to study the gender distribution of ownership of donkey drawn carts and its effect on women life. In the study area about 86% of the households were male headed and only ...

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Research paper thumbnail of Growth Performance of Arsi-Bale Kids Supplemented with Different Levels of Concentrate

African Journal of Livestock Extension, 2004

A feeding trail was conducted at Adami Tulu Research Center on Arsi-Bale weaned kids to see the e... more A feeding trail was conducted at Adami Tulu Research Center on Arsi-Bale weaned kids to see the effect of different levels of concentrate supplementation and determine optimum level of supplementation. Grazing kids were supplemented with four different levels (0, 150, 300, and 450 grams) of concentrate. Kids supplemented with high level of supplement (450g/d) have grown at a fastest (P 0.05). Increasing level of supplement from 300 g to 450 g had significantly (P African Journal of Livestock Extension Vol.3 2004: 82-86

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Research paper thumbnail of Effects of four different basal diets on the carcass composition of finishing Borana bulls

Twenty four Borana bulls (average weight 218 ± 6.3 kg) were randomly assigned to 4 finishing diet... more Twenty four Borana bulls (average weight 218 ± 6.3 kg) were randomly assigned to 4 finishing diets to study the effects of basal diets on carcass composition. Diets were: R1 (teff straw 30%, local hay 10%, haricot bean straw 10%, molasses 20%, corn grain 20% and haricot bean grain 10%), R2 (teff straw 10%, haricot bean straw 20%, maize stover 10%, molasses 15%, corn grain 25%, noug cake 10% and linseed cake 10%), R3 (teff straw 10%, local hay 20%, molasses 25%, wheat bran 15% and wheat middling 30%) and R4 (teff straw 20%, molasses 30%, wheat bran 20% and wheat middling 30%). Animals were individually fed for 90 days at the recommended level of 3% of body weight. Results showed that, compared to other diets, R1 resulted in a significantly lower hot carcass weight (98.2 ± 18.4, vs 146.8 ± 6.7, 135.2 ± 8.1 and 135.2 ± 3.2, for R2, R3 and R4, respectively). Similar trends were observed for kidney fat, hump, scrotal fat weights and rib eye area. There was no significant difference in he...

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Research paper thumbnail of Growth performance of Boran cattle and their Simmental crosses in Ethiopia 188

Calf records on 188 Boran and 5 grades of Simmental x Boran crossbreds were analyzed for the effe... more Calf records on 188 Boran and 5 grades of Simmental x Boran crossbreds were analyzed for the effect of Simmental breeding and other factors on pre- and post-weaning growth traits in Ethiopia. Crossbred calves were significantly (P < 0.05) heavier at birth than purebred Boran and birth weights increased with increasing levels of Simmental blood. Crossbred calves with 50% Simmental blood had the heaviest (P < 0.05) weight at all ages after birth. Crossing Boran cattle with Simmental breeds improved growth performances of calves up to a maximum with 50% Simmental blood. Male calves were significantly (P < 0.01) heavier at birth and at all other ages (P < 0.05) than female calves, and they grew 6.2 and 10% faster than females during pre- and post-weaning periods, respectively. Calves born in the wet season were heavier (P < 0.05) than dry-season calves at weaning age. Age of dam significantly (P < 0.05) affected pre-weaning growth rate and weaning weights of calves in ...

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Research paper thumbnail of Herbaceous species composition, dry matter production and condition of the major grazing areas in the mid rift valley of Ethiopia

A vegetation inventory was conducted in the Mid Rift Valley of Ethiopia to determine the herbaceo... more A vegetation inventory was conducted in the Mid Rift Valley of Ethiopia to determine the herbaceous species composition, dry matter production and range condition of different grazing areas so as to recommend the possible management option in improve grazing areas of the ...

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