枯草芽孢杆菌发酵棉粕对黄羽肉鸡屠宰性能和肉品质的影响  

Effect of cottonseed meal fermented by Bacillus subtilis on slaughter performance and meat quality of yellow-feathered broilers

作　　者：王朝阳[1] 孙焕林[1] 冯江鑫 周波[1] 张贺林[1] 张文举[1] 

机构地区：[1]石河子大学动物科技学院,新疆石河子832000

出　　处：《黑龙江畜牧兽医》2016年第8期102-104,共3页Heilongjiang Animal Science And veterinary Medicine

基　　金：国家自然科学基金项目(31360564);石河子大学重大科技攻关项目(gxjs2011-zdgg01)

摘　　要：为了研究添加不同比例枯草芽孢杆菌发酵棉粕对黄羽肉鸡屠宰性能及肉品质的影响,试验将42日龄黄羽肉鸡120只随机分成4组,1组为对照组,2,3,4组分别添加2%、5%和8%发酵棉粕,研究发酵棉粕不同添加量对黄羽肉鸡生长后期屠宰性能和肉品质的影响。结果表明:4组肉鸡屠宰率最高,2,3,4组肉鸡屠宰率、半净膛率、全净膛率、胸肌率、腿肌率和肌肉p H45 min值均显著高于1组(P<0.05);2,3,4组失水率、滴水损失、剪切力均降低,其中4组这三项指标数值均显著低于1组(P<0.05);与1组相比,2,3,4组胸肌脂肪含量提高,其中3,4组显著高于1组(P<0.05);2,3,4组腿肌脂肪含量均显著高于1组(P<0.05)。说明枯草芽孢杆菌发酵棉粕添加量为8%时对肉鸡屠宰性能和肉品质的影响效果最好。To study the effects of different proportions of cottonseed meal fermented by Bacillus subtilis on slaughter performance and meat quality in yellow- feathered broilers, 120 healthy yellow- feathered broilers at 42 days of age were randomly divided into 4 groups. The group 1 was the control group, and groups 2,3, and 4 were supplemented with 2% ,5% and 8% fermented cottonsed meal in diets to study the effects of different proportions of fermented cottonsed meal on the slaughter performance and meat quality in yellow - feathered broilers during the late growth period, respectively. The results showed that the slaughter rate in the group four was highest; the slaughter rates, semi - eviscerated rates, eviscerated rates, rates of breast muscle, leg muscle rates, and muscle pH45 rain values in the groups 2, 3 and 4 were significantly higher （P〈O. 05） than those in the group 1; the water loss rates, drip loss rates, and shear force in the groups 2, 3 and 4 were reduced compared with the group t, thereinto, the group 4 was significantly lower （ P 〈 0.05 ） than the group 1 on the three kinds of indexes ; compared with group 1, the contents of chest muscle fat in the were increased, thereinto, the groups 3 and 4 were significantly higher （ P 〈 0.05 ） the group 1 ; the contents of leg muscle fat in the groups 2, 3 and 4 were significantly higher （P 〈0.05） than those in the group 1. The results indicate that adding 8% cotton meal fermented by Bacillus subtilis has the best effect results on slaughter performance and meat quality of broilers.

关 键 词：枯草芽孢杆菌 发酵 棉粕 黄羽肉鸡 屠宰性能 肉品质 

分 类 号：S852.616[农业科学—基础兽医学] S831[农业科学—兽医学]