| 半胱胺对生长肥育猪胴体品质的影响及其机理探讨 |
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| 引用本文： | 陈安国,洪奇华,吴林友.半胱胺对生长肥育猪胴体品质的影响及其机理探讨[J].中国畜牧杂志,2004,40(2):11-13. |
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| 作者姓名： | 陈安国 洪奇华 吴林友 |
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| 作者单位： | 1. 浙江大学动物科学学院,浙江杭州,310029
2. 浙江省农业厅,浙江杭州,310020 |
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| 摘 要： | 在生长肥育猪的生长期和肥育期日粮中分别添加 6 0mg/kg半胱胺和 75mg/kg半胱胺 ,经屠宰试验表明 :胴体瘦肉率提高 4 .6 3% (P <0 .0 5 ) ,胴体脂肪率降低 8.5 3% (P <0 .0 5 ) ,同时第 10肋背膘厚降低 10 .17% (P >0 .0 5 )。在日粮中添加半胱胺使血清中生长激素 (GH)和三碘甲腺原氨酸 (T3 )含量分别提高 2 4 .4 4 % (P <0 .0 5 )和 2 1.31% (P <0 .0 5 )。添加半胱胺能显著提高皮下脂肪激素敏感脂酶 (HSL)活力 38.2 3% (P <0 .0 5 ) ,有降低苹果酸脱氢酶、葡萄糖 6 磷酸脱氢酶、异柠檬酸脱氢酶活性的趋势。研究结果显示 ,半胱胺可能通过增加血清GH含量和提高HSL活力来影响胴体品质。
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| 关 键 词： | 畜牧学 胴体品质 半胱胺 生长激素 激素敏感脂酶 |
| 文章编号： | 0258-7033(2004)02-0011-03 |
| 修稿时间： | 2002年11月8日 |
Effects of Cysteamine on Carcass Characteristics of Growing-finishing Pigs and Approach to the Mechanism |
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| CHEN An-guo,HONG Qi-hua,WU Lin-you.Effects of Cysteamine on Carcass Characteristics of Growing-finishing Pigs and Approach to the Mechanism[J].Chinese Journal of Animal Science,2004,40(2):11-13. |
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| Authors: | CHEN An-guo HONG Qi-hua WU Lin-you |
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| Institution: | CHEN An-guo~1,HONG Qi-hua~1,WU Lin-you~2 |
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| Abstract: | To study the effects of cysteamine on carcass characteristics of growing-finishing pigs and approach to the mechanism, pigs were fed a diet supplemented with 60 mg/kg cysteamine during growing period and 75 mg/kg cysteamine during finishing period. The slaughter trail revealed that the lean percent of carcass was increased by 4.63% (P < 0.05) compared with the control. The percentage of fat of carcass and the width of backfat were decreased by 8.53% (P < 0.05) and 10.17% (P > 0.05) respectively. It was found that cysteamine supplementation increased the concentration of growth hormone (GH) and triodothyronine in serum by 24.44%(P < 0.05)and 21.31%(P < 0.05) respectively. The results also showed the activity of hormone sensitive lipase (HSL) was increased by 38.23% (P < 0.05). Compared with the control, the activities of malic dehydrogenase, glucose-6-phosphate dehydrogenase and isocitric dehydrogenase had a decreasing trend. These results indicated that the effects of cysteamine on carcass characteristics of growing-finishing pigs may be due to the increased concentration of serum GH and the improved HSL activity. |
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| Keywords: | Animal science Carcass characteristics Cysteamine GH Hormone sensitive lipase |
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