年龄和性别对陶赛特×小尾寒羊F1代羔羊屠宰性能与肉品质的影响  

Effects of Age and Sex on Slaughter Characteristics and Meat Quality of Poll Dorset×Small Tail Han Sheep F1 Lamb

作　　者：王梦霖[1] 雒秋江[1] 杨开伦[1] 唐志高[1] 朱文渊[1] 门小明[1] 

机构地区：[1]新疆农业大学动物营养实验室,乌鲁木齐830052

出　　处：《中国畜牧兽医》2009年第2期152-155,共4页China Animal Husbandry & Veterinary Medicine

基　　金：国家自然科学基金项目(30560098)

摘　　要：试验旨在探讨年龄和性别对陶×寒F1羔羊肉用性能及肉品质的影响。选取同等饲养条件下的7月龄陶×寒F1公羔、母羔;13月龄陶×寒F1公羔各5只,研究其屠宰性能和肉的食用品质。结果表明,13月龄羔羊的宰前活重、胴体重比7月龄高41.85%、56.51%(P<0.01),屠宰率显著高于7月龄(P<0.05),13月龄羔羊的屠宰性能高于7月龄。产肉力指标上13月龄羔羊的瘦肉重、眼肌面积、肉骨比较7月龄高30.40%、30.04%(P<0.01)、15.56%(P<0.05)。13月龄羔羊肥肉重、GR值比7月龄高117.23%、263.40%(P<0.01)。肉品质方面,13月龄羔羊背最长肌剪切力值、滴水损失率、胶原蛋白含量、肌纤维直径均显著高于7月龄(P<0.05)。公羔的宰前活重、胴体重比母羔高11.96%、14.36%(P<0.05),表明7月龄时公羔屠宰性能高于母羔,肉品质指标无显著差异。因此,陶×寒F1羔羊的屠宰性能和肉品质明显受年龄、性别的影响。The effects of slaughter age and sex on lamb meat performance and quality of Poll Dorset× Small Tail Han Sheep FI were studied. Five male lambs, 5 female lambs of 7-month-old and 5 male lambs of 13-month-old, fed under the same feeding conditions, were slaughtered to study slaughter characteristics and meat quality. The live weight and carcass weight of the 13-month-old lamb were higher 41.85%（P〈0.01）and 56.51%（P〈0.01）than that of the 7-month-old respectively. The dressing percentage of 13-month-old lamb was significantly higher than 7 months （P〈0. 05）, it showed that 13-month-old lamb on slaughter characteristics was higher very markedly than 7-month-old. The lean meat weight, eye muscle area and meatbone ratio were higher 30.40% （P〈0.01）, 30.04% （P〈0.01） and 15.56 % （P〈0.05） than that of the 7-month-old respectively. The GR value and fat weight of 13-month-old were higher 117.23% （P〈0.01） and 263.40% （P〈0.01） than 7- month-old lamb. The shear force value, drip loss, collagen content and muscle fiber diameter of 13-month-old were significantly higher than 7-month-old Lamb （P〈0.05）. The live and carcass weight of male lamb were higher markedly than female （P〈0.05）, but the fat percentage of female was significantly higher 11.96% （P〈0.05） and 14.36%（〈0.05） than that of male. Results showed that slaughter age markedly affected slaughter characteristics and meat quality of lamb, and sex affected slaughter characteristics of lamb.

关 键 词：陶×寒F1羔羊 屠宰性能 肉品质 年龄 性别 

分 类 号：S826.92[农业科学—畜牧学]