复合添加剂对肉仔鸡生长性能、胴体性状和肌肉品质的影响  

Effects of compound additives on growth performance,carcass traits and meat quality in broilers

作　　者：王晓明[1] 钱辉跃[2] 杨东[1] 

机构地区：[1]江汉大学生命科学学院,武汉430056 [2]华中农业大学理学院,武汉430070

出　　处：《华中农业大学学报》2011年第2期154-160,共7页Journal of Huazhong Agricultural University

基　　金：国家自然科学基金项目(30500358)

摘　　要：以1日龄、健壮的艾维菌(Avian)肉仔鸡630只(公、母各半)为试验动物,以按NRC微营养素推荐标准配制的营养性预混料为试验基础,以对鸡肉品质有调控作用的营养素组成的复合维生素、复合微量元素和复合生物活性物质添加剂为试验因素,采用3因子5水平二次回归通用旋转组合设计,分成21个组(其中1个为对照组),按照15种饲喂水平组合设计15种试验日粮,进行49 d饲养试验,研究多个调控因子的不同水平组合对肉鸡生长性能、胴体性状和肌肉品质的影响。结果表明:试验组肉鸡的7周龄质量增加量、料重比、胸肌/活质量、腹脂率、pH值、系水力、肌内脂肪、粗蛋白,均不同程度地优于增设的对照组;试验主要指标与3种复合添加剂的饲喂水平呈极显著的二次回归关系;利用回归模型进行指标预测,当多指标综合评定指数最好时,复合维生素、复合微量元素和复合生物活性物质在肉仔鸡饲粮中的饲喂水平分别为1 672.64 mg/kg(VE254.91、VC283.23、VA4 248.51、VH0.43)、2 888.10 mg/kg(Fe 77.84、Cu 90.81、Mn 116.75、Cr 0.78、Zn 142.70、Se0.193)和1 885.01 mg/kg(甜菜碱1 767.53,大蒜素81.40)。结果显示,日粮中基础性营养素与肉质营养调控因子添加剂间的合理配比,可以改善肉仔鸡的胴体性状和肌肉品质。In order to study the effects of different combination of regulating facts on growth performance, carcass traits and meat quality in broilers, 630 one-day-old healthy avian broilers were randomly assigned into 21 groups （including one control treatment）, the control treatment was fed by normal diet, and the rest 20 treatments were fed by fifteen kinds of experimental diets. Each of three experimental factors （compound vitamins,compound trace elements and compound active additives） was designed to 5 levels. After 49-days＇ growth trail, the mean weight of broilers, the feed efficiency of broilers, breast muscle/live weight of broilers,and the abdominal fat rate, the pH value, the water holding capacity, intramuscular fat, crude protein of meat in each treatment were better than those of the control treatment （P〈0. 01）. The multi-parameters comprehensive evaluation and optimization of mathematical models showed that the carcass and meat quality of broiler were the best when three compound additives in the diet was 1 672. 64 mg/kg compound vitamins （VE 254. 91,Vc 283.23,VA 4 248. 51,VH0.43）,2 888. 10 mg/kg compound trace elements（Fe 77.84,Cu 90. 81,Mn 116.75,Cr 0. 78,Zn 142. 70,Se 0. 193）,and 1 885.01 mg/kg compound active additives（betaine 1 767. 53,allitridum 81.40 ）,respectively. These resuits indicated that the optimal ratio of basic nutritional factors and regulatory factors could improve carcass traits and the meat quality of broiler.

关 键 词：复合添加剂 肉仔鸡 生长性能 胴体性状 肌肉品质 综合选择指数 

分 类 号：S828.5[农业科学—畜牧学]