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| 甜菜碱与酵母铬对4~7周龄肉仔鸡胴体品质及脂质代谢的影响 | |
| 引用本文： | 郝俊虎,王俊东,庞全海,李俊平,张建峰,张建海,姚华.甜菜碱与酵母铬对4~7周龄肉仔鸡胴体品质及脂质代谢的影响[J].中国农业科学,2005,38(4):803-812. |
| 作者姓名： | 郝俊虎 王俊东 庞全海 李俊平 张建峰 张建海 姚华 |
| 作者单位： | 1. 山西农业大学动物科技学院,太谷,030801;宁夏出入境检验检疫局,银川,750001 2. 山西农业大学动物科技学院,太谷,030801 3. 山西农业大学动物科技学院,太谷,030801;中国兽医药品监察所,北京,100081 4. 山西农业大学动物科技学院,太谷,030801;南京农业大学,南京,210095 5. 山西农业大学动物科技学院,太谷,030801;中国农业大学,北京,100094 |
| 基金项目： | 山西省自然科学基金资助项目(981087)，山西省归国留学基金资助项目(99044) |
| 摘 要： | 选用21日龄AA肉仔鸡288只，随机分为9个处理组，每组32只，设4个重复，每个重复8只。采用3×3（酵母铬×甜菜碱）二因子三水平有重复试验设计。在玉米-豆粕型日粮基础上添加不同水平的酵母铬（以铬计0、400、600 ?g·kg-1）与甜菜碱（0、800、1 000 mg·kg-1）以饲喂基础日粮组为对照组，用以研究二者对肉仔鸡胴体品质及脂质代谢的影响，并初步探讨二者的互作效应。试验期4周，结果表明：（1）甜菜碱与酵母铬对肉仔鸡的屠宰率、腹脂率、全净膛率均有互作效应（P＜0.01），半净膛率无互作效应。屠宰率、全净膛率均显著高于对照组（P＜0.01）。腹脂率均显著低于对照组（P＜0.01）。（2）甜菜碱和酵母铬对肝脏、胸肌、腿肌TG、TC均有互作效应（P＜0.01）。8个试验组均低于对照组（P＜0.01）。综合分析，效果最佳的为1 000 mg·kg-1甜菜碱+400 ?g·kg-1酵母铬组。（3）第7周末，各试验组血清总胆固醇（TC）、尿酸（UA）、低密度脂蛋白胆固醇（LDL-C）、甘油三酯（TG）、葡萄糖(Glu)均低于对照组（P＜0.01）；而血清总蛋白（TP）、白蛋白（ALB）、游离脂肪酸（FFA）、高密度脂蛋白胆固醇（HDL-C）均高于对照组（P＜0.01)。 |
| 关 键 词： | 甜菜碱 酵母铬 肉仔鸡 胴体品质 脂肪代 |
| 收稿时间： | 2004-2-11 |
Effect of Betaine and Yeast Chromium on Carcass Quality and Lipid Metabolism in 4-7-week-old Broiler Chickens |
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| HAO Jun-hu,WANG Jun-dong,PANG Quan-hai,LI Jun-ping,ZHANG Jian-feng,ZHANG Jian-hai,YAO Hua.Effect of Betaine and Yeast Chromium on Carcass Quality and Lipid Metabolism in 4-7-week-old Broiler Chickens[J].Scientia Agricultura Sinica,2005,38(4):803-812. | |
| Authors: | HAO Jun-hu WANG Jun-dong PANG Quan-hai LI Jun-ping ZHANG Jian-feng ZHANG Jian-hai YAO Hua |
| Institution: | HAO Jun-hu1,2,WANG Jun-dong1,PANG Quan-hai2,LI Jun-ping1,3,ZHANG Jian-feng1,4,ZHANG Jian-hai1,YAO Hua1,5 |
| Abstract: | An experiment was conducted using a total of 288 three-week-old AA broiler chickens to investigate the effects of adding yeast chromium (0, 400, 600 μg·kg-1 respectively) and betaine (0, 800, 1 000 mg·kg-1 respectively) to corn soybean diets on carcass quality and lipid metabolism in broiler chickens and their interaction. Chickens were randomly divided into 9 treatments (32 for each treatment, 8 for each replicate). A 3×3 (chromium×betaine) experiment with replicates was designed. The basal diet was used as control group, and the experiment lasted for four weeks. The result showed:(1) There were significant effects of interaction between betaine and chromium on slaughter rate, abdomininal fat rate, the rate of the whole pure thorax, (P＜0.01) and no significant interactive effects on half pure thorax rate (P＞0.05).(2) Betaine and chromium on the content of cholesterol (TC) and triglycerides (TG) in liver and muscle of chest and leg had interactive effects (P＜0.01). Analysis showed that, it was better for the test group to add 1 000 mg·kg-1 betaine and 400μg·kg-1 chromium at the same time.(3) At the end of 7 weeks, betaine and chromium significantly increased the concentrations of serum total protein (TP), albumin (ALB), free fatty acid (FFA), high density lipid protein chloesterol(HDL-C) in serum compared with control group (P＜0.01) and significantly reduced the concentrations of cholesterol (TC), uric acid (UA), low density lipid protein chloesterol (LDL-C), triglycerides (TG), and glucose (Glu). |
| Keywords: | Betaine Yeast chromium Broiler chickens Carcass quality Lipid metabolism |
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