Shubham Dilip Suradkar, J Venkata Ramana, K Raja Kishore, K Naga Raja Kumari, P Kavitha
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引用次数: 0
Abstract
The present study evaluated the effects of different dietary oil and fat sources on growth performance, serum biochemical profile, nutrient digestibility and carcass characteristics of broiler chickens. A total of 300 day-old Cobb 430Y broiler chicks were randomly allotted to five dietary treatments, each comprising six replicates of ten birds. Birds were fed iso-caloric and iso-nitrogenous diets containing different lipid sources: soybean oil (T1), palm oil refinery by-product (T2), palm oil (T3), rice bran oil (T4) and lard (T5). Oils and fats were included at 3.0% during the pre-starter phase and 5.0% during the starter and finisher phases. Broilers fed lard (T5) exhibited significantly higher (p < 0.05) body weight gain, improved feed conversion ratio and the highest performance index (p < 0.01), followed by T2 and T1. The best protein efficiency ratio (p < 0.05) was observed in T1, followed by T5 and T2. Feed intake during the overall period was significantly higher (p < 0.01) in T2, T4 and T5. Serum biochemical analysis revealed significantly higher (p < 0.01) total protein and albumin levels in T5. The lowest LDL cholesterol concentration (p < 0.01) was recorded in T2, followed by T1 and T3, while serum triglycerides and total cholesterol were significantly elevated in T5 and T4. Dry matter and crude protein digestibility were significantly improved (p < 0.05) in T1, T2 and T5. Ether extract digestibility was lower (p < 0.01) in T2, whereas nitrogen-free extract digestibility was higher (p < 0.01) in all treatments except T4. Carcass yield, dressing percentage and breast meat yield were significantly higher (p < 0.01) in T1, T2 and T5. In conclusion, dietary lipid source significantly influences broiler performance and metabolic responses. Palm oil refinery by-product demonstrated comparable performance to conventional oils and may serve as a potential alternative energy source under practical feeding conditions.
本试验旨在研究饲粮中不同油脂来源对肉鸡生长性能、血清生化指标、营养物质消化率和胴体特性的影响。试验选取300只日龄Cobb 430Y肉鸡，随机分为5个饲粮处理，每个处理6个重复，每重复10只鸡。饲喂含不同脂质来源的等热量、等氮饲粮：大豆油（T1）、棕榈油精炼副产物（T2）、棕榈油（T3）、米糠油（T4）和猪油（T5）。油和脂肪在发酵剂前阶段添加3.0%，在发酵剂和育成剂阶段添加5.0%。饲喂猪油（T5）的肉仔鸡表现出极显著的(p p p p p p p p p p p p p p p p p
期刊介绍：
Archives of Animal Nutrition is an international journal covering the biochemical and physiological basis of animal nutrition. Emphasis is laid on original papers on protein and amino acid metabolism, energy transformation, mineral metabolism, vitamin metabolism, nutritional effects on intestinal and body functions in combination with performance criteria, respectively. It furthermore deals with recent developments in practical animal feeding, feedstuff theory, mode of action of feed additives, feedstuff preservation and feedstuff processing. The spectrum covers all relevant animal species including food producing and companion animals, but not aquatic species.
Seldom can priority be given to papers covering more descriptive studies, even if they may be interesting and technically sound or of impact for animal production, or for topics of relevance for only particular regional conditions.
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