嗜酸乳杆菌发酵棉籽粕对黄羽肉鸡生长性能、屠宰性能和血清生化指标的影响  

Effects of Cottonseed Meal Fermented by Lactobacillus acidophilus on Growth Performance,Slaughter Performance and Biochemical Indexes in Serum of Yellow-Feathered Broilers

作　　者：张晓羊[1] 王永强[1] 张文举[1] 刘建成[1] 杨亮[1] 

机构地区：[1]石河子大学动物科技学院,石河子832003

出　　处：《动物营养学报》2016年第12期3885-3893,共9页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家自然科学基金项目(31360564);新疆研究生科研创新项目(XJGRI2014058)

摘　　要：本试验旨在研究嗜酸乳杆菌发酵棉籽粕对黄羽肉鸡生长性能、屠宰性能和血清生化指标的影响。试验选用21日龄健康黄羽肉鸡公鸡180只,随机分成3组,分别为Ⅰ组（对照组）、Ⅱ组和Ⅲ组,每组6个重复,每个重复10只鸡。对照组饲喂含6%棉籽粕的基础饲粮,Ⅱ组饲喂含6%嗜酸乳杆菌发酵棉籽粕的试验饲粮,Ⅲ组饲喂在含6%棉籽粕的基础饲粮中添加7×104CFU/g的嗜酸乳杆菌的试验饲粮。试验期分为2个阶段,21~42日龄和43~64日龄。结果表明：1）21~42日龄时,与对照组相比,Ⅱ组黄羽肉鸡的平均日增重（ADG）提高了8.61%（P〈0.05）,料重比（F/G）下降了7.69%（P〈0.05）;Ⅲ组的ADG、平均日采食量（ADFI）和F/G均无显著差异（P〉0.05）。与Ⅲ组相比,Ⅱ组的ADG提高了4.56%（P〈0.05）。43~64日龄时,与对照组相比,Ⅱ组的ADG提高了12.32%（P〈0.05）;Ⅲ组的ADG、ADFI和F/G均无显著差异（P〉0.05）。与Ⅲ组相比,Ⅱ组的ADG提高了8.20%（P〈0.05）。21~64日龄时,各组的ADG、ADFI和F/G均无显著差异（P〉0.05）。2）42日龄时,与对照组相比,Ⅱ组黄羽肉鸡的屠宰率、半净膛率和全净膛率分别提高了2.99%、7.55%和12.33%（P〈0.05）;Ⅲ组的屠宰性能指标无显著差异（P〉0.05）。与Ⅲ组相比,Ⅱ组的屠宰率和半净膛率分别提高了3.43%和6.38%（P〈0.05）。64日龄时,与对照组相比,Ⅱ组的屠宰率、胸肌率和腿肌率分别提高了5.27%、8.92%和7.05%（P〈0.05）,半净膛率提高了6.84%（P〈0.01）;Ⅲ组的屠宰性能指标均无显著差异（P〉0.05）。与Ⅲ组相比,Ⅱ组的屠宰率、半净膛率和胸肌率分别提高了4.08%、4.35%和5.16%（P〈0.05）。3）42日龄时,与对照组相比,Ⅱ组黄羽肉鸡的血清总蛋白（TP）和白蛋白（ALB）含量分别提高了10.06%和12.60%（P〈0.05）,血清尿素氮（UN）含量降低了46.76%（P〈0.01）;Ⅲ组的血清生化指标无显著差异（P〉0.05）。与ⅢThis study was conducted to examine the effects of cottonseed meal fermented by Lactobacillus acidophilus on growth performance,slaughter performance and biochemical indexes in serum of yellow-feathered broilers.One hundred and eighty 21-day-old healthy male yellow-feathered broilers were randomly divided into3 groups with 6 replicates per group and 10 broilers per replicate.The three groups were groups Ⅰ（control group）,Ⅱ and Ⅲ,the broilers in the control group were fed the basal diet included 6%cottonseed meal,and those in group Ⅱ were fed the experimental diet included 6%fermented cottonseed meal,the others in groupⅢ were fed the basal diet included 6%cottonseed meal and 7.00×10^4 CFU/g Lactobacillus acidophilus.The experimental period included two phases of 21 to 42 days of age and 43 to 64 days of age.The results showed as follows：1） at 21 to 42 days of age,compared with the control group,average daily gain（ADG） of yellow-feathered broilers in group Ⅱ was significantly increased by 8.61%（P〈0.05） and the ratio of feed to gain（F/G） in group Ⅱ was significantly decreased by 7.69%（P〈0.05）,and average daily feed intake（ADFI）,ADG and F/G in group Ⅲ had no significant differences（P〉0.05）.ADG in group Ⅱ was significantly increased by 4.56%compared with group Ⅲ（P〈0.05）.At 43 to 64 days of age,compared with the control group,ADG in group Ⅱ was significantly increased by 12.32%（P〈0.05）,and ADFI,ADG and F/G in group Ⅲ had no significant differences（P〉0.05）.ADG in group Ⅱ was significantly increased by8.20%compared with group Ⅲ（P〈0.05）.At 21 to 64 days of age,ADFI,ADG and F/G had no significant differences among all groups（P〉0.05）.2） At 42 days of age,compared with the control group,dressing percentage,percentage of half-eviscerated yield and percentage of eviscerated yield of yellow-feathered broilers in group Ⅱ were significantly increased by 2.99%,7.55%and 12.33%（P〈0.05）,respectively;and the slaughter performance

关 键 词：发酵棉籽粕 黄羽肉鸡 生长性能 屠宰性能 血清生化指标 

分 类 号：S831[农业科学—畜牧学] S816.6[农业科学—畜牧兽医]