发酵菜籽粕替代豆粕对肉鸡生长性能、肉品质及血清生化指标的影响

Effect of Soybean Meal Replaced by Fermented Rapeseed Meal on Growth Performance,Meat Quality and Serum Biochemical Indexes of Broilers

本试验旨在研究发酵菜籽粕替代豆粕对肉鸡生长性能、肉品质及血清生化指标的影响。选用23日龄黄羽肉公鸡400只,随机分为4组,每组4个重复,每个重复25只,对照组饲喂基础日粮,试验Ⅰ、Ⅱ和Ⅲ组分别在基础日粮中添加3%、6%和9%发酵菜籽粕等营养替代豆粕。试验期43d。结果表明：1与对照组相比,试验Ⅰ、Ⅱ和Ⅲ组肉鸡平均日增重、平均日采食量和料重比差异均不显著（P〉0.05）;与试验Ⅰ、Ⅱ组相比,试验Ⅲ组肉鸡平均日增重分别提高16.47%（P〈0.05）、15.03%（P〈0.05）,料重比分别降低7.71%（P〈0.05）和4.27%（P〉0.05）。2各组肉鸡胸肌的pH1、pH24、肉色（L＊、a＊、b＊）、蒸煮损失和嫩度差异均不显著（P〉0.05）;试验Ⅰ、Ⅱ和Ⅲ组肉鸡胸肌的失水率与对照组相比均显著降低（P〈0.05）。3与对照组相比,试验Ⅰ、Ⅱ和Ⅲ组肉鸡血清中葡萄糖含量分别降低13.06%（P〈0.05）、8.12%（P〉0.05）和9.57%（P〉0.05）;总蛋白含量分别提高2.50%（P〉0.05）、20.86%（P〈0.05）和33.92%（P〈0.05）;谷丙转氨酶含量分别降低7.99%（P〉0.05）、18.85%（P〉0.05）和26.98%（P〈0.05）。综上所述,肉鸡日粮中添加3%-9%发酵菜籽粕等营养替代豆粕是可行的,其中添加9%发酵菜籽粕效果最好。

This experiment was conducted to study the effect of soybean meal replacement by fermented rapeseed meal on growth performance,meat quality and serum biochemical indexes of broilers.A total 400 23-day-old Yellow-feathered male broilers were randomly divided into 4groups with 4replicates per group and 25 broilers per replicate.The broilers in control group were fed a basal diet,and the others were fed the basal diets with the 3%（group Ⅰ）,6%（group Ⅱ）and 9%（group Ⅲ）fermented rapeseed meal equal-nutritionally replacing the soybean meal,respectively.The experiment lasted for 43 days.The results showed as follows：1 Compared with control group,the ADG,ADFI and F/G of groupsⅠ,Ⅱ andⅢshowed no significant differences（P〈0.05）;The ADG of groupⅢ were 16.47%（P〈0.05）,15.03%（P〈0.05）higher than that of groupsⅠ andⅡ,the F/G of groupⅢ were 7.71%（P〈0.05）,4.27%（P〉0.05）lower than that of groupsⅠ and Ⅱ.2 There were no significant differences in the pH1,pH24,meat color（L＊,a＊,b＊）,cooking loss and tenderness of chest muscle among all groups（P〉0.05）;Comparedwith control group,the water loss rate of groupsⅠ,Ⅱ and Ⅲ were significantly decreased（P〈0.05）.3 Compared with control group,the serum GLU content of groupsⅠ,ⅡandⅢ were decreased by 13.06%（P〈0.05）,8.12%（P〉0.05）and 9.57%（P〉0.05）;The serum TP content of groupsⅠ,Ⅱ and Ⅲ were increased by 2.50%（P〉0.05）,20.86%（P〈0.05）and 33.92%（P〈0.05）;The serum GPT content of groups Ⅰ,Ⅱ and Ⅲ were decreased by 7.99%（P〉0.05）,18.85%（P〉0.05）and 26.98%（P〈0.05）.It was concluded that it would be feasible to replace the soybean meal with 3%to 9%fermented rapeseed meal in broiler feeding,and the optimum supplemental level of fermented rapeseed meal was 9%.