Evaluation of dietary incorporation of treated waste silkworm pupae meal on nutrient utilization and performance of broiler chicken
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Date
2024-03-26
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Sher-e-Kashmir University of Agricultural Sciences & Technology, Jammu (J&K)
Abstract
In broiler chicken cost of protein ingredient makes up around 45% of the total cost of the feed, making it significantly more expensive than the other feed ingredients. The most expensive ingredient in chicken feed formula is the protein of animal origin. A lot of stress is being laid to identify newer protein sources to reduce the cost of feeding. Based on this a study was conducted to scrutinize the effect of the incorporation of ethanol treated waste silkworm pupae meal (WSWPM-ET) in the broiler chicken ration on the production parameters, nutrient parameters, carcass traits, immunological parameters, blood-biochemical profile and micrometry of different components of the small intestine. The WSWPM-ET (DMB) contained, 51.97±0.67 % CP, 9.23±0.06 % EE, 4.58±0.28 % CF, 4.89±0.07 % TA, 29.31±0.79 % NFE, 0.23±0.01 % Ca and 0.90±0.01% P. The EE content of the untreated sample was 37.43%±1.48, which indicated that treatment procedure employed in this study was effective in accomplishment of desired goal of partial defatting. A total number of 225 broiler chicks (VenCobb; unsexed) were randomly divided into 5 groups, with each group comprising 3 replicates of 15 chicks each. The control (C) group was fed a basal diet; whereas four treatment groups viz. T1, T2, T3 and T4 were diets with meat and bone meal (MBM) replaced with WSWPM-ET at the rate of 25%, 50%, 75% and 100%, respectively. All the rations formulated were isocaloric and isonitrogenous and the nutrient requirements were met as per ICAR (2013). At the end of the growth trial (42 days age), two birds from each replicate were slaughtered. No adverse effects were observed with regard to nutrient utilization, production parameters, carcass traits and micrometery of small intestine of experimental birds at the replacement of MBM with WSWPM-ET up to 75% and on immunological parameters and blood-biochemical profile (ALT, AST activity, and serum levels of total protein, albumin, globulin, A:G ratio, triglycerides, and HDL cholesterol) at the replacement of MBM with WSWPM-ET up to 100 % level. It may be concluded that WSWPM-ET may replace MBM up to 75 % level in the broiler chicken ration with no adverse effects on health and production performance.
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