Mukti Barua - Academia.edu (original) (raw)

Papers by Mukti Barua

Research paper thumbnail of Effects of acidifier supplementation on performance parameter, serum lipoprotein and carcass characteristics of broiler chicken

Indian Journal of Poultry Science, 2017

Acidifiers are inorganic chemicals that potentially reduce gastric pH to improve nutrient utiliza... more Acidifiers are inorganic chemicals that potentially reduce gastric pH to improve nutrient utilization by suppressing invasion of pathogenic microorganism. One hundred Cobb 500™ broiler chicks were used in a 28-day trial of a completely randomized design to study the effects of acidifier supplementation on performance parameters, carcass characteristics and serum lipoprotein in commercial broiler. Birds were randomly distributed into five dietary treatment groups designated as T0, T1, T2, T3 and T4 where acidifier was supplemented at 0%, 0.1%, 0.2%, 0.3%, 0.4% in drinking water, respectively and each treatment was divided into two replicates having 20 birds per replicate. All birds had free access to ad-libitum feed and water. Results indicated that, weight gain decreased (P<0.001) and feed intake differed significantly at 2nd (P<0.01), 3rd (P<0.05) and 4th (P<0.01) weeks. FCR increased significantly at 2nd (P<0.001) and 4th (P<0.05) weeks. The best FCR was recorded in T4 group and the worst in T0 group at 4th week. Abdominal fat decreased significantly (P<0.001) and gizzard weight increased (P<0.05) at 4th week. LDL differed significantly (p<0.01) at 4th week. The highest LDL was recorded in T4 group and lowest in T0 group. The highest HDL was recorded in T4 group and lowest in T3 group at 3rd week. Similar to 3rd week, HDL differed (p<0.01) at 4th week. The highest HDL was recorded in T1 group and lowest in T4 group. It was concluded that, increasing levels of supplemental acidifier substantially improved performance parameter and carcass characteristics of broiler.

Research paper thumbnail of Standardized ileal amino acid digestibility of protein sources for broiler chickens is influenced by the feed form

Poultry Science, Dec 1, 2020

The aim of present study was to determine the influence of the feed form (FF) on standardized ile... more The aim of present study was to determine the influence of the feed form (FF) on standardized ileal digestibility (SID) of nitrogen (N) and amino acids (AA) in 3 protein sources (PS) for broiler chickens. Six diets were tested in a 3 ! 2 factorial arrangement of treatments involving 3 PS (meat and bone meal [MBM], soybean meal [SBM], and canola meal [CM]) in mash and pelleted forms. The basal endogenous N and AA losses were determined by offering a N-free diet in the mash form. From day 1 to 18, the birds were offered a broiler starter diet. The diets and the N-free diet were randomly assigned to 6 replicate cages (8 birds per cage) and fed from day 19 to 23. The ileal digesta were collected on day 23. The SID of N was higher (P , 0.05) in SBM followed by MBM and CM. The average SID of AA in SBM and MBM were similar (P. 0.05), and greater (P , 0.05) than that in CM. The FF had no influence (P. 0.05) on the SID of indispensable AA, the only exception being His, which was reduced (P , 0.05) by pelleting. Pelleting, however, resulted in reduction (P , 0.001) in the SID of all dispensable AA and average of AA. The AA most affected by pelleting was Cys, with a 15.4% decrease in the SID. The standardized ileal digestible contents of protein and the average of indispensable AA and dispensable AA were higher in MBM than in SBM, with CM being the lowest. Pelleting decreased (P , 0.05) the digestible protein and total digestible AA contents. These findings reveal that the FF has a substantial impact on AA digestibility estimates of feed ingredients and it must be considered in AA digestibility assays of ingredients with high protein and AA contents.

Research paper thumbnail of Influence of Age on the Standardized Ileal Amino Acid Digestibility of Corn and Barley in Broilers

Animals

The aim of this study was to determine the standardized ileal digestibility coefficients (SIDCs) ... more The aim of this study was to determine the standardized ileal digestibility coefficients (SIDCs) of nitrogen (N) and amino acids (AAs) in corn and barley at six different ages (days 7, 14, 21, 28, 35 and 42) of broilers using the direct method. The apparent AA digestibility coefficients were corrected using age-appropriate basal endogenous AA losses. No age effect (p > 0.05) was noted for the SIDC of N in corn. The average SIDC of indispensable AAs (IAAs) and total AAs (TAAs) was influenced in a quadratic manner (p < 0.05) with the values being higher at day 7 that decreased at day 14, increased and plateaued between days 21 and 35 and dropped again at day 42. The average SIDC of dispensable AAs (DAAs) was influenced linearly (p < 0.05). In barley, the SIDC of N and average IAAs, DAAs and TAAs was affected (quadratic; p < 0.001) by age. The digestibility increased from day 7 to 21 and then plateaued up to day 42. The present findings confirm that the SIDC of AA in corn a...

Research paper thumbnail of Influence of feed form on the standardised ileal amino acid digestibility of common grains for broiler chickens

Animal Feed Science and Technology, 2021

Abstract The present experiment was carried out to determine the influence of feed form (FF) on t... more Abstract The present experiment was carried out to determine the influence of feed form (FF) on the apparent ileal digestibility coefficients (AIDC) of dry matter (DM), starch and, standardised ileal digestibility coefficients (SIDC) of nitrogen (N) and amino acids (AA) in different grain types (GT). Eight experimental diets were developed in a 4 × 2 factorial arrangement of treatments that included four GT (maize, sorghum, wheat and barley) and two FF (mash vs. pellet). A N-free diet was also used to determine the endogenous N and AA losses for the calculation of SIDC values. Titanium dioxide was incorporated in all diets as an indigestible marker. Ileal nutrient digestibility was determined using the direct method. The four assay diets were formulated to contain 938 g/kg grain as the sole source of AA and starch in the diet. The assay diets and N-free diet were randomly allotted to six replicate cages (eight birds per cage) and fed from 19 to 23 d post-hatch and the ileal digesta was collected on d 23. Pelleting reduced (P 0.05) effect on the SIDC of N and AA except cysteine and proline, in which the SIDC values were higher (P

Research paper thumbnail of An investigation into the influence of age on the standardized amino acid digestibility of wheat and sorghum in broilers

Poultry Science, 2021

Standardized ileal digestibility coefficients (SIDC) of nitrogen (N) and amino acids (AA) in whea... more Standardized ileal digestibility coefficients (SIDC) of nitrogen (N) and amino acids (AA) in wheat and sorghum at 6 different ages (d 7, 14, 21, 28, 35, and 42) of broilers were determined. Two assay diets were formulated to contain 93.8% of each grain as the sole source of AA in the diet. Titanium dioxide (0.5%) was added as an indigestible marker. Each assay diet was fed to 6 replicate cages housing 14 (d 7), 12 (d 14), 10 (d 21), 8 (d 28), 8 (d 35), and 6 (d 42) birds per cage for 4 d prior to ileal digesta collection. The apparent ileal digestibility coefficients (AIDC) were standardized by using the age-appropriate basal endogenous AA losses. In the case of wheat, AIDC of N and all AA increased (linear or quadratic, P < 0.05 to 0.001) with advancing age. No age effect was noticed on the SIDC of N, average of indispensable (IAA) and dispensable AA (DAA), though the average of total AA (TAA) tended (linear, P = 0.09) to increase as birds grew older. In sorghum, the AIDC of N, average of IAA and DAA were unaffected (P > 0.05) by age. The SIDC of N, average SIDC of IAA, DAA and TAA were higher at d 7, reduced at d 14 and then plateaued. Among the IAA, the SIDC of Arg, His, Ile, Leu, Lys, Thr, Val, and the SIDC of all individual DAA (except Cys) decreased with age (linear or quadratic, P < 0.05 to 0.001) with higher values at d 7. The higher SIDC values determined at d 7 were due to higher EAA losses during wk 1. The results showed that broiler age influences AA digestibility and this may need be considered in practical feed formulations. The age effect is variable depending on the grain type and specific AA.

Research paper thumbnail of Basal ileal endogenous amino acid flow in broiler chickens as influenced by age

Poultry Science, 2021

The current study was carried out to measure the basal ileal endogenous amino acid (EAA) flow in ... more The current study was carried out to measure the basal ileal endogenous amino acid (EAA) flow in male broilers (Ross 308) at different ages (d 7, 14, 21, 28, 35, and 42), following the feeding of a nitrogen-free diet. Titanium dioxide (5 g/kg) was included as an indigestible marker. The nitrogen-free diet was offered for four days prior to ileal digesta collection to 6 replicate cages housing 14 (d 3–7), 12 (d 10–14), 10 (d 17–21), 8 (d 24–28), 8 (d 31–35), and 6 (d 38–42) birds per cage. The basal EAA flow was calculated as g/kg DM intake. The amino acid (AA) profile of endogenous protein, expressed as g/100 g protein, was also calculated. The basal endogenous flow of nitrogen and all individual and total AA decreased quadratically (P < 0.05 to 0.001), with flows being higher on d 7, then decreasing on d 14, plateauing until d 35 and decreasing further on d 42. The concentrations of Trp, Cys, and Gly in the endogenous protein increased linearly (P < 0.01 to 0.001) with advancing age, whereas a linear decrease (P < 0.001) was noted for Lys. A quadratic influence (P < 0.05 to 0.001) was observed for the concentrations of Ile, Leu, Met, Val, and Asp. These changes in the endogenous protein profile may be attributed to variations in the contribution of endogenous sources with age but delineating the exact contribution of different sources is complicated. Overall, the current findings suggest that the basal ileal EAA flow is influenced by broiler age and age-specific EAA flows may need to be considered to standardize the AA digestibility.

Research paper thumbnail of Prevalence and Clinico-Pathological Features of Peste des Petits Ruminants in Different Breeds of Goats and their Response to Antimicrobials

Journal of Infection and Molecular Biology, 2014

Peste des petits ruminant (PPR) is an acute febrile viral disease of small ruminants characterize... more Peste des petits ruminant (PPR) is an acute febrile viral disease of small ruminants characterized by mucopurulent nasal and ocular discharges, necrotizing and erosive stomatitis, enteritis and pneumonia. Present study was carried out on one hundred and eighty two goats during July to December, 2012. Black Bengal goats depicted higher prevalence (P = 0.66) than Crossbred and Jamunapari goats. Clinical examination revealed significantly increased heart (P = 0.00), temperature (P = 0.00) and respiratory rates (P = 0.00) in PPR affected goats (n = 87) than healthy goats (P < 0.05). Significantly higher prevalence (P < 0.00) of PPR (65%) was recorded in non vaccinated group (n = 102, P < 0.05) whereas nonsignificant difference in PPR was recorded with respect to breed (P = 0.66), sex (P = 0.68) and month (P = 0.50) of disease occurrence (P > 0.05). Blood samples of PPR affected goats (n = 10) exhibited significantly decreased (P = 0.02) total leukocyte count (9.31±0.53 thousand/mm 3) and (P = 0.01) lymphocytes (41.20±2.26%) (P < 0.05), whereas significantly increased (P = 0.02) neutrophils (41.30±2.32%) as compared to healthy goats (n = 10) (P < 0.05). Postmortem examination of PPR suspected goats revealed characteristics zebra stripe lesions at ileocaecal junction. The study suggests that PPR can affect goat population irrespective of age, breed and sex. Supportive therapy with Oxytetracycline can enhance recovery of the PPR affected goats and vaccination can reduce the disease prevalence leading to effective control and prevention. All copyrights reserved to Nexus® academic publishers

Research paper thumbnail of Prevalence of gastrointestinal parasitism of cattle in ARTICLE HISTORY

A B S T R A C T The objectives of this study were to investigate the prevalence of gastrointestin... more A B S T R A C T The objectives of this study were to investigate the prevalence of gastrointestinal parasitism (GP), and to determine the effects of age, sex, breed, body score and body weight in the occurrences of GP of cattle in Banskhali Upazilla, Chittagong, Bangladesh. A total of 50 fecal samples were randomly collected directly from rectum of cattle. The samples were examined by routine coproscopical methods for the presence of different parasites and oocysts. Overall prevalence of GP infestation was 72% (n=36/50). Prevalence of Paramphistomum spp. infestation was found to be the highest (30%; n=15/50) followed by Toxocara spp.

Research paper thumbnail of Effects of supplementing L-carnitine on productive performance and carcass characteristics of broiler

L-carnitine is a naturally occurring amino acid derivative which has potential role in transporti... more L-carnitine is a naturally occurring amino acid derivative which has potential role in transporting long chain fatty acids from cytoplasm to the matrix of mitochondria. One hundred Cobb 500™ broiler chicks were used in a 28-day trial at Chittagong Veterinary and Animal Sciences University poultry farm to evaluate the functional efficiency of L-carnitine in drinking water on performance and carcass characteristics of broiler chicken. The experiment was carried out following completely randomized design. Birds were randomly distributed into five dietary treatment groups having two replicates per treatment. L-carnitine was supplemented at the rate of 0 mg/L, 25 mg/L, 50 mg/L, 75 mg/L and 100 mg/L in regular drinking water for T0, T1, T2, T3 and T4 dietary treatment groups, respectively. Results indicated that, weekly average weight gain differed significantly at 2nd (P<0.00l), 3rd (P<0.01) and 4th (P<0.05) weeks of age due to supplementation of L-carnitine. Unlike weight gain,...

Research paper thumbnail of Influence of phytogenic feed additives and prebiotic in vegetable protein based diet on broiler performance

Progressive Agriculture

This study was conducted to determine the effect of phytogenic feed additive and prebiotic on veg... more This study was conducted to determine the effect of phytogenic feed additive and prebiotic on vegetable protein base diet in broiler performance. A total of 90 chicks (Cobb-500) were weighted and randomly assigned to the three treatment groups (T o , T 1 and T 2) and supplemented with either phytogenic feed additives or prebiotic and reared for 28 days. Data on live body weight, body weight gain, feed intake and feed conversion (FC) were taken at weekly interval. Results revealed that significant (P<0.05) increase in live body weight of broilers was evident in both phytogenic feed additive and prebiotic supplemented groups comparing to the control group at 4 th weeks of age. No significant (P>0.05) differences were found in live weight gain among the treatment groups on weekly intervals along the whole experimental period. However, significant differences (P<0.05) were evident on cumulative weight gain at 3 rd and 4 th weeks of age. In case of feed intake at the age of 3 rd and 4 th weeks, significant (P<0.05) differences were obtained with decreased feed intake in both phytogenic feed additive and prebiotic supplemented groups comparing to the control group. In case of feed conversion (FC), there were significant (P<0.05) differences among the groups on 1 st week and 4 th week of age. Best FC was accounted for prebiotic supplemented group along the whole experimental period. The survivability rates were 96.67%, 100% and 100% in control group, phytogenic feed additive and prebiotic supplemented group respectively. Results finally showed that vegetable protein when supplemented with phytogenic prebiotic feed additives and prebiotic c an additive beneficial effect on performance of when compared to non-supplemented control diet. So, ration using vegetable protein mixed with phytogenic feed additives or prebiotic can be recommended for broiler.

Research paper thumbnail of An assessment on potential risk pathways for the incursion of highly pathogenic avian influenza virus in backyard poultry farm in Bangladesh

October-2020

Background and Aim: Highly pathogenic avian influenza (HPAI) is a deadly virus of zoonotic potent... more Background and Aim: Highly pathogenic avian influenza (HPAI) is a deadly virus of zoonotic potential. The study mainly aims to determine the risk pathways (RPs) for the probable incursion of HPAI virus (HPAIV) in backyard poultry in Bangladesh. Materials and Methods: The study involves expert elicitation technique. The concept map determines the possible RPs. The map consists of 16 concepts, each with nodes from which probabilities of an event originates. These probabilities are described by qualitative descriptors ranging from negligible to high. Risk assessment has been performed using the subjective risk assessment tool. Results: The tool demonstrates positive correlation among groups of experts in the level of agreement by scoring RP; however, the level of agreement varies from 71% to 93% among group of experts. The median risk score of viral incursion through the "Exposure of backyard poultry with farm poultry in the trading market" was 11 and ranked as top, followed ...

Research paper thumbnail of An assessment on potential risk pathways for the incursion of highly pathogenic avian influenza virus in backyard poultry farm in Bangladesh

Veterinary World, Oct 9, 2020

Background and Aim: Highly pathogenic avian influenza (HPAI) is a deadly virus of zoonotic potent... more Background and Aim: Highly pathogenic avian influenza (HPAI) is a deadly virus of zoonotic potential. The study mainly aims to determine the risk pathways (RPs) for the probable incursion of HPAI virus (HPAIV) in backyard poultry in Bangladesh. Materials and Methods: The study involves expert elicitation technique. The concept map determines the possible RPs. The map consists of 16 concepts, each with nodes from which probabilities of an event originates. These probabilities are described by qualitative descriptors ranging from negligible to high. Risk assessment has been performed using the subjective risk assessment tool. Results: The tool demonstrates positive correlation among groups of experts in the level of agreement by scoring RP; however, the level of agreement varies from 71% to 93% among group of experts. The median risk score of viral incursion through the "Exposure of backyard poultry with farm poultry in the trading market" was 11 and ranked as top, followed ...

Research paper thumbnail of Effect of Fish Oil on Performance, Coccidiosis Prevention and Serum Lipid Profile in Broiler

Asian Journal of Poultry Science, 2016

Research paper thumbnail of Characterization of hemagglutination activity of emerging Newcastle disease virus in Bangladesh

International Journal of One Health

Research paper thumbnail of Clinical Management of Uterine Prolapse in Non-raising Hindquarter Condition of Cross Breed Dairy Cow

Veterinary Sciences: Research and Reviews

Research paper thumbnail of Schistosomus Reflexus Syndrome, a Congenital Defect in Ruminants; Occurrence and Management through Caesarean Section in Dairy Cow

Research Journal for Veterinary Practitioners

Research paper thumbnail of Effect of Fish Oil on Performance, Coccidiosis Prevention and Serum Lipid Profile in Broiler

Asian Journal of Poultry Science, 2016

Research paper thumbnail of Isolation and epidemiology of multidrug resistant Escherichia coli from goats in Cox's Bazar, Bangladesh

Journal of Advanced Veterinary and Animal Research, 2016

Research paper thumbnail of Growth Performance and Serum Biochemical Responses of Commercial Broilers Fed Diets Containing Rubber Seed and Yeast

Asian Journal of Poultry Science, 2016

Research paper thumbnail of Prevalence of gastrointestinal parasitism of cattle in Banskhali upazilla, Chittagong, Bangladesh

Journal of Advanced Veterinary and Animal Research, 2015

Research paper thumbnail of Effects of acidifier supplementation on performance parameter, serum lipoprotein and carcass characteristics of broiler chicken

Indian Journal of Poultry Science, 2017

Acidifiers are inorganic chemicals that potentially reduce gastric pH to improve nutrient utiliza... more Acidifiers are inorganic chemicals that potentially reduce gastric pH to improve nutrient utilization by suppressing invasion of pathogenic microorganism. One hundred Cobb 500™ broiler chicks were used in a 28-day trial of a completely randomized design to study the effects of acidifier supplementation on performance parameters, carcass characteristics and serum lipoprotein in commercial broiler. Birds were randomly distributed into five dietary treatment groups designated as T0, T1, T2, T3 and T4 where acidifier was supplemented at 0%, 0.1%, 0.2%, 0.3%, 0.4% in drinking water, respectively and each treatment was divided into two replicates having 20 birds per replicate. All birds had free access to ad-libitum feed and water. Results indicated that, weight gain decreased (P<0.001) and feed intake differed significantly at 2nd (P<0.01), 3rd (P<0.05) and 4th (P<0.01) weeks. FCR increased significantly at 2nd (P<0.001) and 4th (P<0.05) weeks. The best FCR was recorded in T4 group and the worst in T0 group at 4th week. Abdominal fat decreased significantly (P<0.001) and gizzard weight increased (P<0.05) at 4th week. LDL differed significantly (p<0.01) at 4th week. The highest LDL was recorded in T4 group and lowest in T0 group. The highest HDL was recorded in T4 group and lowest in T3 group at 3rd week. Similar to 3rd week, HDL differed (p<0.01) at 4th week. The highest HDL was recorded in T1 group and lowest in T4 group. It was concluded that, increasing levels of supplemental acidifier substantially improved performance parameter and carcass characteristics of broiler.

Research paper thumbnail of Standardized ileal amino acid digestibility of protein sources for broiler chickens is influenced by the feed form

Poultry Science, Dec 1, 2020

The aim of present study was to determine the influence of the feed form (FF) on standardized ile... more The aim of present study was to determine the influence of the feed form (FF) on standardized ileal digestibility (SID) of nitrogen (N) and amino acids (AA) in 3 protein sources (PS) for broiler chickens. Six diets were tested in a 3 ! 2 factorial arrangement of treatments involving 3 PS (meat and bone meal [MBM], soybean meal [SBM], and canola meal [CM]) in mash and pelleted forms. The basal endogenous N and AA losses were determined by offering a N-free diet in the mash form. From day 1 to 18, the birds were offered a broiler starter diet. The diets and the N-free diet were randomly assigned to 6 replicate cages (8 birds per cage) and fed from day 19 to 23. The ileal digesta were collected on day 23. The SID of N was higher (P , 0.05) in SBM followed by MBM and CM. The average SID of AA in SBM and MBM were similar (P. 0.05), and greater (P , 0.05) than that in CM. The FF had no influence (P. 0.05) on the SID of indispensable AA, the only exception being His, which was reduced (P , 0.05) by pelleting. Pelleting, however, resulted in reduction (P , 0.001) in the SID of all dispensable AA and average of AA. The AA most affected by pelleting was Cys, with a 15.4% decrease in the SID. The standardized ileal digestible contents of protein and the average of indispensable AA and dispensable AA were higher in MBM than in SBM, with CM being the lowest. Pelleting decreased (P , 0.05) the digestible protein and total digestible AA contents. These findings reveal that the FF has a substantial impact on AA digestibility estimates of feed ingredients and it must be considered in AA digestibility assays of ingredients with high protein and AA contents.

Research paper thumbnail of Influence of Age on the Standardized Ileal Amino Acid Digestibility of Corn and Barley in Broilers

Animals

The aim of this study was to determine the standardized ileal digestibility coefficients (SIDCs) ... more The aim of this study was to determine the standardized ileal digestibility coefficients (SIDCs) of nitrogen (N) and amino acids (AAs) in corn and barley at six different ages (days 7, 14, 21, 28, 35 and 42) of broilers using the direct method. The apparent AA digestibility coefficients were corrected using age-appropriate basal endogenous AA losses. No age effect (p > 0.05) was noted for the SIDC of N in corn. The average SIDC of indispensable AAs (IAAs) and total AAs (TAAs) was influenced in a quadratic manner (p < 0.05) with the values being higher at day 7 that decreased at day 14, increased and plateaued between days 21 and 35 and dropped again at day 42. The average SIDC of dispensable AAs (DAAs) was influenced linearly (p < 0.05). In barley, the SIDC of N and average IAAs, DAAs and TAAs was affected (quadratic; p < 0.001) by age. The digestibility increased from day 7 to 21 and then plateaued up to day 42. The present findings confirm that the SIDC of AA in corn a...

Research paper thumbnail of Influence of feed form on the standardised ileal amino acid digestibility of common grains for broiler chickens

Animal Feed Science and Technology, 2021

Abstract The present experiment was carried out to determine the influence of feed form (FF) on t... more Abstract The present experiment was carried out to determine the influence of feed form (FF) on the apparent ileal digestibility coefficients (AIDC) of dry matter (DM), starch and, standardised ileal digestibility coefficients (SIDC) of nitrogen (N) and amino acids (AA) in different grain types (GT). Eight experimental diets were developed in a 4 × 2 factorial arrangement of treatments that included four GT (maize, sorghum, wheat and barley) and two FF (mash vs. pellet). A N-free diet was also used to determine the endogenous N and AA losses for the calculation of SIDC values. Titanium dioxide was incorporated in all diets as an indigestible marker. Ileal nutrient digestibility was determined using the direct method. The four assay diets were formulated to contain 938 g/kg grain as the sole source of AA and starch in the diet. The assay diets and N-free diet were randomly allotted to six replicate cages (eight birds per cage) and fed from 19 to 23 d post-hatch and the ileal digesta was collected on d 23. Pelleting reduced (P 0.05) effect on the SIDC of N and AA except cysteine and proline, in which the SIDC values were higher (P

Research paper thumbnail of An investigation into the influence of age on the standardized amino acid digestibility of wheat and sorghum in broilers

Poultry Science, 2021

Standardized ileal digestibility coefficients (SIDC) of nitrogen (N) and amino acids (AA) in whea... more Standardized ileal digestibility coefficients (SIDC) of nitrogen (N) and amino acids (AA) in wheat and sorghum at 6 different ages (d 7, 14, 21, 28, 35, and 42) of broilers were determined. Two assay diets were formulated to contain 93.8% of each grain as the sole source of AA in the diet. Titanium dioxide (0.5%) was added as an indigestible marker. Each assay diet was fed to 6 replicate cages housing 14 (d 7), 12 (d 14), 10 (d 21), 8 (d 28), 8 (d 35), and 6 (d 42) birds per cage for 4 d prior to ileal digesta collection. The apparent ileal digestibility coefficients (AIDC) were standardized by using the age-appropriate basal endogenous AA losses. In the case of wheat, AIDC of N and all AA increased (linear or quadratic, P < 0.05 to 0.001) with advancing age. No age effect was noticed on the SIDC of N, average of indispensable (IAA) and dispensable AA (DAA), though the average of total AA (TAA) tended (linear, P = 0.09) to increase as birds grew older. In sorghum, the AIDC of N, average of IAA and DAA were unaffected (P > 0.05) by age. The SIDC of N, average SIDC of IAA, DAA and TAA were higher at d 7, reduced at d 14 and then plateaued. Among the IAA, the SIDC of Arg, His, Ile, Leu, Lys, Thr, Val, and the SIDC of all individual DAA (except Cys) decreased with age (linear or quadratic, P < 0.05 to 0.001) with higher values at d 7. The higher SIDC values determined at d 7 were due to higher EAA losses during wk 1. The results showed that broiler age influences AA digestibility and this may need be considered in practical feed formulations. The age effect is variable depending on the grain type and specific AA.

Research paper thumbnail of Basal ileal endogenous amino acid flow in broiler chickens as influenced by age

Poultry Science, 2021

The current study was carried out to measure the basal ileal endogenous amino acid (EAA) flow in ... more The current study was carried out to measure the basal ileal endogenous amino acid (EAA) flow in male broilers (Ross 308) at different ages (d 7, 14, 21, 28, 35, and 42), following the feeding of a nitrogen-free diet. Titanium dioxide (5 g/kg) was included as an indigestible marker. The nitrogen-free diet was offered for four days prior to ileal digesta collection to 6 replicate cages housing 14 (d 3–7), 12 (d 10–14), 10 (d 17–21), 8 (d 24–28), 8 (d 31–35), and 6 (d 38–42) birds per cage. The basal EAA flow was calculated as g/kg DM intake. The amino acid (AA) profile of endogenous protein, expressed as g/100 g protein, was also calculated. The basal endogenous flow of nitrogen and all individual and total AA decreased quadratically (P < 0.05 to 0.001), with flows being higher on d 7, then decreasing on d 14, plateauing until d 35 and decreasing further on d 42. The concentrations of Trp, Cys, and Gly in the endogenous protein increased linearly (P < 0.01 to 0.001) with advancing age, whereas a linear decrease (P < 0.001) was noted for Lys. A quadratic influence (P < 0.05 to 0.001) was observed for the concentrations of Ile, Leu, Met, Val, and Asp. These changes in the endogenous protein profile may be attributed to variations in the contribution of endogenous sources with age but delineating the exact contribution of different sources is complicated. Overall, the current findings suggest that the basal ileal EAA flow is influenced by broiler age and age-specific EAA flows may need to be considered to standardize the AA digestibility.

Research paper thumbnail of Prevalence and Clinico-Pathological Features of Peste des Petits Ruminants in Different Breeds of Goats and their Response to Antimicrobials

Journal of Infection and Molecular Biology, 2014

Peste des petits ruminant (PPR) is an acute febrile viral disease of small ruminants characterize... more Peste des petits ruminant (PPR) is an acute febrile viral disease of small ruminants characterized by mucopurulent nasal and ocular discharges, necrotizing and erosive stomatitis, enteritis and pneumonia. Present study was carried out on one hundred and eighty two goats during July to December, 2012. Black Bengal goats depicted higher prevalence (P = 0.66) than Crossbred and Jamunapari goats. Clinical examination revealed significantly increased heart (P = 0.00), temperature (P = 0.00) and respiratory rates (P = 0.00) in PPR affected goats (n = 87) than healthy goats (P < 0.05). Significantly higher prevalence (P < 0.00) of PPR (65%) was recorded in non vaccinated group (n = 102, P < 0.05) whereas nonsignificant difference in PPR was recorded with respect to breed (P = 0.66), sex (P = 0.68) and month (P = 0.50) of disease occurrence (P > 0.05). Blood samples of PPR affected goats (n = 10) exhibited significantly decreased (P = 0.02) total leukocyte count (9.31±0.53 thousand/mm 3) and (P = 0.01) lymphocytes (41.20±2.26%) (P < 0.05), whereas significantly increased (P = 0.02) neutrophils (41.30±2.32%) as compared to healthy goats (n = 10) (P < 0.05). Postmortem examination of PPR suspected goats revealed characteristics zebra stripe lesions at ileocaecal junction. The study suggests that PPR can affect goat population irrespective of age, breed and sex. Supportive therapy with Oxytetracycline can enhance recovery of the PPR affected goats and vaccination can reduce the disease prevalence leading to effective control and prevention. All copyrights reserved to Nexus® academic publishers

Research paper thumbnail of Prevalence of gastrointestinal parasitism of cattle in ARTICLE HISTORY

A B S T R A C T The objectives of this study were to investigate the prevalence of gastrointestin... more A B S T R A C T The objectives of this study were to investigate the prevalence of gastrointestinal parasitism (GP), and to determine the effects of age, sex, breed, body score and body weight in the occurrences of GP of cattle in Banskhali Upazilla, Chittagong, Bangladesh. A total of 50 fecal samples were randomly collected directly from rectum of cattle. The samples were examined by routine coproscopical methods for the presence of different parasites and oocysts. Overall prevalence of GP infestation was 72% (n=36/50). Prevalence of Paramphistomum spp. infestation was found to be the highest (30%; n=15/50) followed by Toxocara spp.

Research paper thumbnail of Effects of supplementing L-carnitine on productive performance and carcass characteristics of broiler

L-carnitine is a naturally occurring amino acid derivative which has potential role in transporti... more L-carnitine is a naturally occurring amino acid derivative which has potential role in transporting long chain fatty acids from cytoplasm to the matrix of mitochondria. One hundred Cobb 500™ broiler chicks were used in a 28-day trial at Chittagong Veterinary and Animal Sciences University poultry farm to evaluate the functional efficiency of L-carnitine in drinking water on performance and carcass characteristics of broiler chicken. The experiment was carried out following completely randomized design. Birds were randomly distributed into five dietary treatment groups having two replicates per treatment. L-carnitine was supplemented at the rate of 0 mg/L, 25 mg/L, 50 mg/L, 75 mg/L and 100 mg/L in regular drinking water for T0, T1, T2, T3 and T4 dietary treatment groups, respectively. Results indicated that, weekly average weight gain differed significantly at 2nd (P<0.00l), 3rd (P<0.01) and 4th (P<0.05) weeks of age due to supplementation of L-carnitine. Unlike weight gain,...

Research paper thumbnail of Influence of phytogenic feed additives and prebiotic in vegetable protein based diet on broiler performance

Progressive Agriculture

This study was conducted to determine the effect of phytogenic feed additive and prebiotic on veg... more This study was conducted to determine the effect of phytogenic feed additive and prebiotic on vegetable protein base diet in broiler performance. A total of 90 chicks (Cobb-500) were weighted and randomly assigned to the three treatment groups (T o , T 1 and T 2) and supplemented with either phytogenic feed additives or prebiotic and reared for 28 days. Data on live body weight, body weight gain, feed intake and feed conversion (FC) were taken at weekly interval. Results revealed that significant (P<0.05) increase in live body weight of broilers was evident in both phytogenic feed additive and prebiotic supplemented groups comparing to the control group at 4 th weeks of age. No significant (P>0.05) differences were found in live weight gain among the treatment groups on weekly intervals along the whole experimental period. However, significant differences (P<0.05) were evident on cumulative weight gain at 3 rd and 4 th weeks of age. In case of feed intake at the age of 3 rd and 4 th weeks, significant (P<0.05) differences were obtained with decreased feed intake in both phytogenic feed additive and prebiotic supplemented groups comparing to the control group. In case of feed conversion (FC), there were significant (P<0.05) differences among the groups on 1 st week and 4 th week of age. Best FC was accounted for prebiotic supplemented group along the whole experimental period. The survivability rates were 96.67%, 100% and 100% in control group, phytogenic feed additive and prebiotic supplemented group respectively. Results finally showed that vegetable protein when supplemented with phytogenic prebiotic feed additives and prebiotic c an additive beneficial effect on performance of when compared to non-supplemented control diet. So, ration using vegetable protein mixed with phytogenic feed additives or prebiotic can be recommended for broiler.

Research paper thumbnail of An assessment on potential risk pathways for the incursion of highly pathogenic avian influenza virus in backyard poultry farm in Bangladesh

October-2020

Background and Aim: Highly pathogenic avian influenza (HPAI) is a deadly virus of zoonotic potent... more Background and Aim: Highly pathogenic avian influenza (HPAI) is a deadly virus of zoonotic potential. The study mainly aims to determine the risk pathways (RPs) for the probable incursion of HPAI virus (HPAIV) in backyard poultry in Bangladesh. Materials and Methods: The study involves expert elicitation technique. The concept map determines the possible RPs. The map consists of 16 concepts, each with nodes from which probabilities of an event originates. These probabilities are described by qualitative descriptors ranging from negligible to high. Risk assessment has been performed using the subjective risk assessment tool. Results: The tool demonstrates positive correlation among groups of experts in the level of agreement by scoring RP; however, the level of agreement varies from 71% to 93% among group of experts. The median risk score of viral incursion through the "Exposure of backyard poultry with farm poultry in the trading market" was 11 and ranked as top, followed ...

Research paper thumbnail of An assessment on potential risk pathways for the incursion of highly pathogenic avian influenza virus in backyard poultry farm in Bangladesh

Veterinary World, Oct 9, 2020

Background and Aim: Highly pathogenic avian influenza (HPAI) is a deadly virus of zoonotic potent... more Background and Aim: Highly pathogenic avian influenza (HPAI) is a deadly virus of zoonotic potential. The study mainly aims to determine the risk pathways (RPs) for the probable incursion of HPAI virus (HPAIV) in backyard poultry in Bangladesh. Materials and Methods: The study involves expert elicitation technique. The concept map determines the possible RPs. The map consists of 16 concepts, each with nodes from which probabilities of an event originates. These probabilities are described by qualitative descriptors ranging from negligible to high. Risk assessment has been performed using the subjective risk assessment tool. Results: The tool demonstrates positive correlation among groups of experts in the level of agreement by scoring RP; however, the level of agreement varies from 71% to 93% among group of experts. The median risk score of viral incursion through the "Exposure of backyard poultry with farm poultry in the trading market" was 11 and ranked as top, followed ...

Research paper thumbnail of Effect of Fish Oil on Performance, Coccidiosis Prevention and Serum Lipid Profile in Broiler

Asian Journal of Poultry Science, 2016

Research paper thumbnail of Characterization of hemagglutination activity of emerging Newcastle disease virus in Bangladesh

International Journal of One Health

Research paper thumbnail of Clinical Management of Uterine Prolapse in Non-raising Hindquarter Condition of Cross Breed Dairy Cow

Veterinary Sciences: Research and Reviews

Research paper thumbnail of Schistosomus Reflexus Syndrome, a Congenital Defect in Ruminants; Occurrence and Management through Caesarean Section in Dairy Cow

Research Journal for Veterinary Practitioners

Research paper thumbnail of Effect of Fish Oil on Performance, Coccidiosis Prevention and Serum Lipid Profile in Broiler

Asian Journal of Poultry Science, 2016

Research paper thumbnail of Isolation and epidemiology of multidrug resistant Escherichia coli from goats in Cox's Bazar, Bangladesh

Journal of Advanced Veterinary and Animal Research, 2016

Research paper thumbnail of Growth Performance and Serum Biochemical Responses of Commercial Broilers Fed Diets Containing Rubber Seed and Yeast

Asian Journal of Poultry Science, 2016

Research paper thumbnail of Prevalence of gastrointestinal parasitism of cattle in Banskhali upazilla, Chittagong, Bangladesh

Journal of Advanced Veterinary and Animal Research, 2015