Modulation of growth and immunity by dietary supplementation of sea buckthorn leaf meal in coloured breeder and their post hatch chicks in Different seasons

Abstract

The present study was conducted at the poultry farm of U.P. Pt. Deen Dayal Upadhyaya Pashu newlineChikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan, Mathura. The basic aim of this newlineresearch was to assess the modulation of growth and immunity of coloured chabro breeder birds and newlinetheir post hatch chicks by dietary supplementation of sea buckthorn leaf meal in summer and winter newlineseasons. Total four experiments were conducted to achieve this goal. The first and fourth experiments newlinewere conducted to assess the production performance and immune status of chabro breeder birds by newlinedietary supplementation of sea buckthorn leaf meal during summer and winter seasons, respectively. newlineNinety coloured breeder (Chabro) hens and eighteen viable cocks in 1:5 sex ratio were randomly newlinedistributed into three treatment groups: Control (Basal), standard breeder diet (BIS, 2007); basal+0.5% newlineand basal+1.0%SBTLM. Throughout the experimental period the birds were offered fixed weighed newlinequantity (110g/day) feed (adequate in all nutrients) as per BIS (2007) and water ad lib. The dry matter, newlinecrude protein, ether extract, crude fiber, total ash, calcium and phosphorus content of dried sea newlinebuckthorn leaf meal (SBTLM) were recorded as 90.46%, 12.33%, 7.13%, 16.86, 8.19%, 1.49% and newline1.14%, respectively in summer season and almost similar composition were observed during winter newlineseason. Basal diet+1.0%SBTLM supplemented group had significantly higher (Plt0.05) Hen House newlineEgg Production (HHEP) as compared to control group during phases of 4-8 weeks, 8-12 weeks and 0- newline12 weeks (Overall) of experimentation in summer season. The weekly FCR on egg weight basis and newlineegg dozen basis were significantly better (Plt0.05) in basal diet+1.0%SBTLM supplemented group newlineduring 4-8 weeks, 8-12 weeks and 0-12 weeks (overall) as compared to control group during summer newlineseason while Phase wise and overall HHEP, FCR (egg weight basis) and FCR (egg dozen basis) were newlinesignificantly better (Plt0.05) in both SBTLM supplemented groups during winter season. Response to