L. Egbeyale - Academia.edu (original) (raw)

Papers by L. Egbeyale

Bulletin of animal health and production in Africa, 2015

Bulletin of animal health and production in Africa, 2017

Animal Reproduction, 2022

In bridging the knowledge gap on stress physiology of Nigerian indigenous chickens, this study in... more In bridging the knowledge gap on stress physiology of Nigerian indigenous chickens, this study investigated the effect of exogenous corticosterone (eCORT) as stress inducing agent on the testicular function and mating behavior of Nigerian indigenous cocks. Twenty-four (24) cocks and one hundred and forty four (144) hens (mating ratio of 1 cock: 6 hens) were grouped into four and assigned to each of the four eCORT treatments (0, 2, 4 and 6 mgeCORT/KgBW) daily for 14 days. Semen samples were collected on days 0, 7 and 14 and analyzed for semen volume (SV), progressive sperm motility (PSM), membrane integrity (MI) and sperm abnormality (SA). Mating behaviors were monitored on days 3, 5 and 8. Blood samples, for hormonal (Luteinizing Hormone (LH), Follicle Stimulating Hormone (FSH) Testosterone (TEST) and stress analysis (heterophil/lymphocyte ratio, H/L) were collected from brachial vein on days 7 and 14. On day 15, cocks were euthanized and testes harvested for histomorphometry. Data were analyzed using multivariate analysis, one-way ANOVA and Kruskal-Wallis tests all in SPSS 23. Administration of 4 mgeCORT/KgBW declined (P<0.05) PSM while 4 mgeCORT/KgBW and 6 mgeCORT/KgBW cocks had reduced (P<0.05) SV and MI with increased SA. Compared to baseline values, progressive sperm motility of cocks administered 6 mgeCORT for 7 and 14 days decreased (P<0.05) by 57.5% and 52.4%, respectively. Exogenous CORT had no significant (P>0.05) influence on the mating behaviors, H/L ratio, FSH and TEST. However, 2 mgeCORT/KgBW enhanced LH levels. Administration of eCORT did not affect the testicular epithelial height and seminiferous tubular diameter. In conclusion, optimal stress induced by eCORT impaired semen quality but with less impact on reproductive hormones, H/L and mating behaviors of intensively raised Nigerian indigenous cocks.

Nigerian Journal of Animal Production, 2022

The study was design to identify effect of Guinea fowl hatchable egg source on fertility and hatc... more The study was design to identify effect of Guinea fowl hatchable egg source on fertility and hatchability and egg physical characteristics. Hatching eggs are primarily subject to assessment of external characteristics. The most important characteristics determining whether eggs are suitable for incubation are their weight, shape, and eggshell condition. Six hundred Guinea fowl eggs were purchased from two reputable breeder farms in Northern Nigeria BirninKebbi and Southern Nigeria Saki consisting of 300 eggs from each source. The eggs collected were stored for seven days at temperature between 16o c-20 oc and selected for incubation in an automated incubator to determine the percentage overall keet hatched, dead in shell, dead in germs, infertile, fertile but not hatched and weak in shell. The results showed that, the hatching rate of the eggs was mostly found to be in the range of 60% for Saki and 68% for BirninKebbi. From the measurements of egg weight, egg length, egg width and e...

Nigerian Journal of Animal Science, 2018

Linear body measurements of forty – eight (48) domestic rabbits in terms of body length (BDL) and... more Linear body measurements of forty – eight (48) domestic rabbits in terms of body length (BDL) and heart girth (HG) were taken along with body weight (BW) and correlated with one another. The body measurements were evaluated as predictor of body weight. The two parameters measured were strongly and positively correlated with one another. The Pearson’s correlation coefficient (r) for body length and heart girth was r = 0.93. The regression equations of body measurements with BLW were positive with higher coefficient of determination (75 – 95%). The body length had a higher strength of prediction (95%) compared to the heart girth, which had lower prediction (75%). The regression or prediction equations generated from body measurements are positive and strong and can be accurately employed to predict the relative body weight of rabbits in the field and market with the use of tape rule without rabbit slaughter. Key words : Linear body measurements, rabbits, body live weight, prediction v...

With increased search for least-cost alternative feed resource in animal production, this study w... more With increased search for least-cost alternative feed resource in animal production, this study was conducted to determine the visual properties, chemical composition and cost analysis of three differently processed discarded vegetable-bovine blood-rumen content mixture as potential alternative feed resource. These mixtures were obtained by mixing whole bovine blood, discarded vegetable and rumen content at ratio 1:1:1 under different processing methods. The processed mixtures obtained were in three categories: discarded vegetable-fresh bovine blood-fresh rumen digesta (D1), discarded vegetable-ensiled bovine blood-fresh rumen digesta (D2) and discarded vegetable-fresh bovine blood-ensiled rumen digesta (D3). The mixtures were cooked and sun-dried to constant moisture content and thereafter were subjected to particle size reduction. Chemical composition of the products indicated a good potential nutritional quality with metabolizable energy and crude protein contents ranging from 9....

Nigerian Journal of Animal Production, 2019

The predilections of FUNAAB-Alpha chicken for Compact Fluorescent Light colours (CFL) and their ... more The predilections of FUNAAB-Alpha chicken for Compact Fluorescent Light colours (CFL) and their effect on growth performance were evaluated. Three hundred and ninety six (396) FUNAAB-Alpha chickens were randomly divided into three treatments, each contained a coloured CFL light bulb of 45W and equal light intensity: T1 (Yellow CFL), T2 (Blue CFL), T3 (White CFL). Artificial lighting was provided for 8 hours from 8pm-4am. Dark to light predilection test was carried out at 2 week of age. Birds under yellow light had enhanced (P< 0.05) frequency of feeding behaviour (3.6) compared to those under blue (1.1) and white (0.7) light respectively. Moreover, birds that preferred yellow light exhibited higher frequency (P< 0.05) of drinking behaviour (0.6) compared to those that preferred other lights. Growth performance result revealed that birds reared under blue light had enhanced average feed intake (77.4) compared to birds reared under white (69.2) and yellow (70.0) light c...

Twenty-eight rabbits from two breeds; New Zealand Red (NZR) and Florida White (FW) (twelve does a... more Twenty-eight rabbits from two breeds; New Zealand Red (NZR) and Florida White (FW) (twelve does and two bucks per breed) were used to examine the effect of feeding frequency on the reproductive performance of two rabbit breeds. Each of the two rabbit breeds were divided into two groups (A and B) on the basis of feeding frequency of once (7a.m only) or twice daily (7a.m and 4p.m). The experiment lasted for 30weeks (10 weeks in each parity). Data obtained were subjected to Analysis of Variance in a 2x2 experimental layout. The litter size of rabbits fed once was 4.33 while those fed twice daily had 2.67 litter size. Rabbits fed twice daily had higher (p<0.05) weaning weight and weaning weight gain than rabbits fed once daily in both breeds. In the third parity, the breeds differed significantly (p<0.05) only in the final weight with FW having a higher value of 2267.50g/rabbit/day than NZR. Significantly (p<0.05) higher mortality was obtained in rabbits fed once daily than tho...

Spanish Journal of Agricultural Research, 2021

Aim of study: To evaluate antimicrobial, immunomodulatory and hepatomodulatory effects of aqueous... more Aim of study: To evaluate antimicrobial, immunomodulatory and hepatomodulatory effects of aqueous extracts of Petiveria alliacea L. (Guinea hen weed) root and leaf on growing pullets. Area of study: Abeokuta, Nigeria. Material and methods: Two hundred and eighty eight eight-weeks-old Isa-brown pullets were divided into eight treatments which consisted in birds administered root extracts or leaf extracts at four different concentrations (0, 15, 30 and 45 ɡ/L). Each treatment was replicated three times with 12 pullets per replicate. Main results: Oocyst counts was lower (p<0.05) in pullets administered root extract (78.42 opɡ) compared with leaf extract (103.58 opɡ). Oocyst counts was lower (p<0.05) in pullets administered 30 and 45 ɡ/L root or leaf extract compared with other treatments. Bacteria counts reduced (p<0.05) in pullets administered root extract compared with leaf extract. Pullets administered 45 ɡ/L root extract recorded lowest (p<0.05) bacteria count. Bursa and thymus weights increased in pullets administered root or leaf extract compared with the control. Pullets administered 30 and 45 ɡ/L root or leaf extract had highest (p<0.05) antibody titre against Newcastle disease vaccine 8.80, 8.86, 8.74 and 8.80 (log2) respectively. There was fatty infiltration in liver of control birds, while hepatocytes appeared normal in liver of pullets administered P. alliacea extracts. Research highlights: P. alliacea root and leaf extracts at 45 ɡ/L performed best as antimicrobial, immune-stimulating and hepato-protective agent in pullets. This study highlights P. allicaea as a valuable antimicrobial and immunostimulating agent in poultry production.

Nigerian Journal of Animal Production, 2021

A thirteen-week experiment was conducted to determine the effect of sex and strain on the haemat... more A thirteen-week experiment was conducted to determine the effect of sex and strain on the haematological and serum biochemical indices of two indigenous chicken strains (FUNAAB Alpha and Yoruba ecotype) in the African subtropics. One hundred and twenty chickens comprising thirty (30) each of FUNAAB Alpha males, FUNAAB Alpha females, Yoruba ecotype males and Yoruba ecotype females were assigned to four treatments consisting of three replicates of ten (10) chickens each, in a 2 x 2 factorial arrangement of a completely randomized design. Data collected were analyzed for simple descriptive and inferential statistics using SAS. Significantly (p<0.05) higher white blood count (13.55 g/100ml) was observed with the FUNAAB Alpha compared with 10.10 g/100ml of the Yoruba ecotype chicken strain. Both the mean corpuscular volume and corpuscular haemoglobin were higher (p<0.05) in the Yoruba ecotype than FUNAAB Alpha. Similarly, glucose and phosphorus values were significantly ...

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Veterinary Medicine, 2019

The study consisted of 400 sexed turkeys, grouped on the basis of 2 distinct feather colours (whi... more The study consisted of 400 sexed turkeys, grouped on the basis of 2 distinct feather colours (white and black) into deep litter and outdoor, respectively. Day-old poults were brooded for 4 weeks and acclimatized in both houses for 2 weeks before the commencement of the study that lasted for 10 weeks. At the end of the trial, 2 birds per replicate were sacrificed and left tibiae were removed for morphometric and mineral analyses. Data were arranged in a 2 × 2 × 2 factorial layout and subjected to Analysis of Variance in a Completely Randomized Design. Results showed water intake and water: feed were significantly (p<0.05) higher in turkeys reared on deep litter. Also, male turkeys recorded significantly (p<0.05) higher weight gain, feed and water intakes, and better feed conversion ratio than female turkeys. Tibia length and ash weight were significantly (p<0.05) greater in turkeys reared in deep litter than turkeys in outdoor. Tibiae phosphorus was significantly influenced ...

Archivos de Zootecnia, 2012

Se determinó el efecto del tamaño sobre la utilización de los componentes del huevo y peso embrio... more Se determinó el efecto del tamaño sobre la utilización de los componentes del huevo y peso embrionario durante la incubación de huevos de las líneas Dominant Black (DB) y Yaffa Brown (YB). Un total de 810 huevos (405 por línea), fueron agrupados en tres tamaños por línea (pequeños, medios y grandes) dispuestos en seis grupos experimentales con tres replicaciones de 45 huevos cada una. Un total de 180 huevos, dos por repetición, fueron usados para determinar el peso de albumen y yema embrionarios los días 1, 7, 10, 15 y 18 de la incubación. Los resultados fueron sometidos a análisis de varianza en una disposición factorial 2 x 3. En ambas líneas, antes de la incubación, se registró un aumento (p<0,05) del porcentaje de albumen al hacerlo el peso del huevo (r = 0,93). El peso del albumen disminuyó hasta cero de forma sostenida desde el día 1 hasta el final de la incubación, aunque la proporción de yema no siguió el mismo modelo. Los rangos de porcentaje de albumen fueron los siguie...

Pakistan Journal of Biological Sciences, 2013

Tropical Animal Health and Production, 2012

This study was carried out on 150 cockerel chickens each of Harco Black and Novogen strains to de... more This study was carried out on 150 cockerel chickens each of Harco Black and Novogen strains to determine their performance, carcass yield and meat composition on free range and deep litter production systems. The birds were brooded for 4 weeks and thereafter allotted to the different production systems for a period of 12 weeks. Each production system was allotted 150 chicks (75 chicks per strain) with three replicates of 25 chicks. The birds on deep litter production system were fed ad libitum while each bird on free range was fed 50 % of its daily feed requirement. On the 84th day, a total of 36 birds were randomly selected for analysis of the carcass yield and meat composition. The data generated were subjected to a two-way analysis of variance in a 2×2 factorial experimental arrangement. Novogen strain consumed less feed (P<0.05) on free range and had the best feed/gain (2.72). A higher (P < 0.05) shear force value (3.74 N) was obtained in the thigh muscle for birds on free range. The tibia proximal length and breadth, and tibia distal length and breadth were significantly (P<0.05) affected by the production systems and strains. On free range, Harco black had more meat (85.69 g) than bone (18.07 g) in the breast while Novogen had the lowest meat/bone (2.38). Conclusively, Novogen strain should be raised on free range for a better performance in terms of feed/gain, but for higher meat composition, Harco black is a better strain. Keywords Production system. Performance. Meat yield. Meat composition. Cockerel chicken Abbreviations SFRB Scavengeable feed resource base g/d Gramme per day g/b/d Gramme per bird per day ME Metabolizable energy % Percentage 'H' Families around the experimental site 'c' Percentage of household that keeps chicken 'p' Household waste found in the crop of the scanvengeable birds g Gramme kJ/kg Kilojoule per kilogramme O. M. Sogunle (*) : O.

Archivos de Zootecnia, 2010

This study was designed to compare chemical composition and quality of carcass parts of 99 broile... more This study was designed to compare chemical composition and quality of carcass parts of 99 broiler chickens of Arbor acre and Marshal MY strains, respectively at the Teaching and Research Farm

Veterinary and Animal Science, 2018

This trial was carried out to determine the responses of two broiler strains of chicken to differ... more This trial was carried out to determine the responses of two broiler strains of chicken to different post-hatch access to feed. 180-day old chicks (Arbor acre and Marshal strains) with initial weight range of 39.36-42.24 g were used for this study. Each strain was divided on weight equalization into three treatment groups consisting of three time-periods with access to feeds (4 h, 24 h, 48 h) post hatch in a 2 × 3 factorial experiment after which they were fed ad-libitum. Thirty (30) birds were assigned to each treatment which comprised of three replicates of ten birds. Data collected on serum biochemical constituents and gut morphology were measured and subjected to analysis of variance in a randomized design. The Marshal strain recorded a higher (p < 0.05) final live weight (2420.00 g/bird) than the Arbor acre strain (2218.30 g/bird). Birds fed at 4 h and 24 h post-hatch recorded higher (p < 0.05) final live weights (2402.00 and 2391.00 g/bird) than those fed at 48 h post-hatch (2133.00 g/ bird). Interaction effects showed that the Marshal strain fed at 4 h post-hatch had the highest (p < 0.05) final live weight (2594.00 g/bird). Highest (p < 0.05) serum total protein and albumin (37.3 and 22.8 g/l) were recorded in birds fed at 4 h post-hatch when assessed at 4 weeks of age. Furthermore, birds fed at 4 h and 24 h post-hatch recorded higher (p < 0.05) serum total protein and albumin than those fed at 48 h post-hatch. Birds fed at 4 h post-hatch recorded the highest (p < 0.05) duodenal villus height at 4th and 8th week of age and highest (P < 0.05) jejunal villus height when assessed in the 2nd week of age. It was concluded that Marshal strain fed at 4 h post-hatch elicited the highest growth performance and the most developed gut morphological features.

Archivos de Zootecnia, 2013

EGBEYALE, SOGUNLE, ABIOLA, OZOJE, SOWANDE AND ADELEYE respectivamente) fueron (p<0,05) mayores qu... more EGBEYALE, SOGUNLE, ABIOLA, OZOJE, SOWANDE AND ADELEYE respectivamente) fueron (p<0,05) mayores que los de los huevos pequeños (25,24). La tasa de utilización del albumen durante la incubación influyó sobre el peso embrionario (r =-0,97). Asimismo el alto contenido de yema respecto al albumen hacia el final de la incubación, en los tres grupos, sería la consecuencia de las necesidades de energía y proteína del embrión en desarrollo, después de la incubación, antes de acceder a algún alimento.

Nigerian Journal of Animal Production, 2015

Nutrients requirement is defined as the minimum amount of nutrients that is integrated into ratio... more Nutrients requirement is defined as the minimum amount of nutrients that is integrated into ration to meet the daily requirement of a normal healthy animal (Scott et al., 1989). Nutrient remains the most vital single factor under the environment which plays a significant role since it accounts for 70-75% of total