Effect of grazing and stall feeding on the productive performance, carcass traits and meat quality attributes of Jamuna basin lambs

Meat Research Pub Date : 2022-10-30 DOI:10.55002/mr.2.5.32
M. Hossain, Md. Mizanur Rahman, Mw Rahman, M. Hossain, M. Haque, M. Hashem
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引用次数: 2

Abstract

The aim of this study was to evaluate the productive performance, carcass traits and meat quality under two rearing system of Jamuna basin lambs. Twenty selected lambs were divided into two treatments like T1 (grazing) and T2 (stall feeding) having ten lambs per treatment. Data was analyzed with unpaired t-test along with GLM procedure of SAS statistical packages. Traits evaluated were carcass traits, proximate components viz. dry matter (DM), crude protein (CP), ether extract (EE) and ash, physicochemical (Ultimate pH, cooked pH, cooking loss, drip loss, water holding capacity-WHC), sensory analysis (color, flavor, tenderness, juiciness, overall acceptability) and instrumental color value (L*, a* and b*). Average daily gain (ADG), hot carcass, skin, viscera, head, pluck, neck, heart, lung, and spleen wt. were found significantly differed (p<0.05) in both treatments. Dressing% and EE% was significantly (p<0.001) higher in grazing than stall feeding. Instrumental color values CIE L*, a* and b* were found significantly higher (p<0.001) in grazing. It may be concluded that grazing group had positive effects on ADG, carcass traits, proximate components, physicochemical, sensory evaluation and instrumental color value in Jamuna basin lamb.
放牧和圈养对贾穆纳盆地羔羊生产性能、胴体性状和肉质性状的影响
本试验旨在评价两种饲养制度下贾穆纳盆地羔羊的生产性能、胴体性状和肉品质。选取羔羊20只,分为T1(放牧)和T2(圈养)两组,每组10只。采用SAS统计软件包的GLM程序对数据进行非配对t检验。评价的性状包括胴体性状、干物质(DM)、粗蛋白质(CP)、粗脂肪(EE)和灰分、理化指标(最终pH值、煮熟pH值、蒸煮损失、漏损、持水量- whc)、感官分析指标(颜色、风味、嫩度、多汁性、总体可接受度)和仪器色值(L*、a*和b*)。平均日增重(ADG)、热胴体、皮肤、脏器、头、拔、颈、心、肺、脾重量均显著高于对照组(p<0.05)。放牧的屠宰率和粗脂肪率显著高于马厩饲养(p<0.001)。放牧时仪器色值CIE L*、a*和b*显著升高(p<0.001)。由此可见,放牧组对贾穆纳盆地羔羊的平均日增重、胴体性状、近似成分、理化、感官评价和仪器色值均有积极影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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