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Articles by G. Halder
Total Records ( 4 ) for G. Halder
  G. Halder , S. Mondal , S.K. Paul , B. Roy and G. Samanta
  An experiment was conducted to find out the effect of arsenic with or without excess supplementation of methionine and methionine-betaine combination on performance of layer chicken. Sixteen week old pullets (n = 120) of Rhode Island Red (RIR) were randomly assigned into four dietary treatments replicated three times with 10 birds/replicate. The groups were control (C)-provided basal diet to meet all the nutrients requirement, T1-birds were offered basal diet and 5.5 ppm arsenic (As) through water, T2-birds were offered control diet with 50 g methionine per 100 kg of feed and 5.5 ppm As through water and in T3- 25 g methionine + 25 g betaine per 100 kg of control feed and 5.5 ppm As through water were provided. The birds were maintained replicate wise in deep litter system of housing with a common system of management. Final body weight and body weight gain was significantly (p<0.01) varied among the groups. Reduced feed intake was noticed in arsenic treated groups. Egg production and egg weight were significantly (p<0.01) decreased in arsenic treated groups than control. The first laying age were differed significantly (p<0.01) among the experimental groups.
  H.K. Ghosh , G. Halder , G. Samanta , S.K. Paul and S.K. Pyne
  An experiment was conducted to determine the influence of organic acid salts and mannan oligosaccharides on the performance and gut health of Japanese Quail. Day old chicks of Japanese Quail (n = 280) were randomly assigned into seven dietary treatments replicated four times with 10 chicks per replicate. Control (C0) birds were given a standard basal diet, C1 birds were provided with basal diet having antibiotic (Bacitracin methyl disalisylate-BMD) at 0.5 g kg-1; T1 birds having diet with sodium butyrate at 5 g kg-1; T2 birds were provided with basal diet having Mannan Oligosaccharide (MOS) at 1 g kg-1; group T3 birds were fed basal diet with ammonium formate at 1 g kg-1, calcium propionate 1 g kg-1 and sodium butyrate 5 g kg-1; T4 birds having diet with sodium butyrate at 5 g kg-1 and MOS at 1 g kg-1; T5 birds having diet with ammonium formate at 1 g kg-1, calcium propionate at 1 g kg-1, sodium butyrate at 5 g kg-1 and MOS at 1 g kg -1 of the diet. Organic acid salt supplementation increased (p<0.05) live weight, live weight gain compared to control (C). Cumulative feed intake was not significantly affected due to dietary treatments. Superior results in terms of Feed Conversion Ratio (FCR) and Performance Index (PI) were found in organic acid salt combination (T3) and organic acid salts combination (OASC) with MOS (T5) supplemented groups compared to others. OASC and OASC with MOS improved (p<0.05) gut health by reducing bacterial load in gut compared to control (C0) and other groups also. The result showed OASC and OASC with MOS supplementation significantly improved villus height compared to other groups. This experiment revealed that the use of OASC or OASC with MOS in the diet improved body weight gain, FCR, PI, villus height and reduced bacterial load in gut as antibiotic compared.
  G. Halder and B. Roy
  An experiment was conducted for comparative study on the performance of commercial broiler chickens fed ration with DL-methionine or with herbal methionine. A-day old, 180 Ven Cobb broiler chicks were randomly divided into three experimental groups, comprising three replicates. Each replicate was consisted of 20 birds. The birds were fed basal diet without methionine supplementation (C), diet with DL-methionine at 1.2 kg ton-1 of feed (T1) and diet with herbal-methionine at 1.2 kg ton-1 of feed (T2). Superior performance (p<0.05) in body weight gain and Feed Conversion Ratio (FCR) were found in methionine supplemented group in either synthetic or herbal form. The cumulative feed and protein consumption were varied significantly (p<0.01) among the groups due to dietary treatments. Protein and energy utilization percentage was also varied significantly (p<0.01) among the groups. Liver protein, lipid and triglyceride varied (p<0.01) due to supplementation of DL-methionine or herbal methionine. Though methionine supplemented groups had little effect on meat quality but had supper effect on feather quality of broiler chicken. Statistical analysis revealed that cost benefit ratio was found significantly and economically viable in T1 and T2 groups than control. In terms of body weight gain, FCR, protein and energy utilization ability, feather quality, the superior performances were found in methionine (both form) supplemented group than control group where no methionine either synthetic or herbal form was supplemented form external source.
  G. Halder , G. Samanta , S. Mondal , B. Roy , K.C. Dhara and S. Koley
  An experiment was conducted to find out the effect of excess methionine and methionine-betaine supplementation on deposition of arsenic in different tissues, organs and eggs of hen and contribution of hen egg and meat to human health hazard along with the arsenic contaminated drinking water. One hundred twenty Rhode Island Red, 16 week-old, were allocated into four groups having three replicates with nine hens and one cock in each replicate. The experimental groups were C (control group fed with basal diet only), T1 (fed control diet with 5.5 ppm arsenic through water), T2 (fed control diet with 5.5 ppm arsenic through water + 50 g methionine per 100 kg of feed) and T3 (fed same as T2 but 50% of the excess methionine supplement was replaced with betaine). The birds were maintained in deep litter system of housing. Statistical analysis confirmed that the concentration of arsenic in different organs, tissues and eggs were varied significantly (p< 0.01) due to dietary treatments. The long term intake of such arsenic contaminated hen eggs and meat by human being may act as some contributory factor to suffer from the serious health hazard. Statistical analysis confirmed that the concentration of arsenic (As) in various organs, tissues and eggs was significantly (p< 0.01) reduced due to supplementation of methionine and methionine-betaine in T2 and T3 groups, respectively as significantly (p< 0.01) larger amount of arsenic was voided through faeces in T2 and T3 groups than T1 group where no excess methionine or betaine was added in diet. So it may be concluded that supplementation of either methionine or methionine-betaine combination may able to protect the chronic arsenic toxicity during exposure of As in laying hen.
 
 
 
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