| 引用本文： |
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廖玉英,杨家晃,何仁春,秦黎梅,韦风英,麦伟虹,周恒,卢桂猷.日粮蛋白质水平对鹅生长性能及肉质的影响[J].广西科学,2007,14(4):411-414. [点击复制]
- LIAO Yu-ying,YANG Jia-huang,HE Ren-chun,QIN Li-mei,WEI Feng-ying,MAI Wei-hong,ZHOU Heng,LU Gui-you.Effects of Different Dietary Crude Protein on Geese Performance and Carcass Quality[J].Guangxi Sciences,2007,14(4):411-414. [点击复制]
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| 摘要: |
| 选取28日龄、体重相近的合浦灰鹅60只,随机分为3个组,采用精料+青料(黑麦草等)混合的方式进行饲喂试验,试验期为42天。第70d采血测定血清中尿素氮、转氨酶活性、血脂和脂蛋白等生化指标,并进行屠宰测定和肌肉营养成分含量测定。试验结果表明:(1)生长前期(28~49日龄),第2组日增重较高,各组间差异不显著(P>0.05);生长后期(50~70日龄)第1组日增重较高,各组间差异不显著(P>0.05)。(2)鹅的血清尿素氮含量随饲粮粗蛋白质水平的降低而下降(P<0.05);血清转氨酶活性、脂类和脂蛋白含量等组间无显著差异。(3)饲粮粗蛋白质水平对肉鹅屠宰性能无显著影响,鹅肉中的干物质、粗蛋白质、氨基酸总量、必需氨基酸总量、肌内脂肪、肌苷酸含量与蛋白质有正相关,各组间差异不显著(P>0.05),随着蛋白质水平提高,肌肉的营养和风味有改善的趋势。 |
| 关键词: 鹅 蛋白质 生长性能 血清生化指标 肉质 |
| DOI： |
| 投稿时间：2007-06-11修订日期：2007-06-20 |
| 基金项目:广西青年科学基金项目(桂科青0339023)资助 |
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| Effects of Different Dietary Crude Protein on Geese Performance and Carcass Quality |
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LIAO Yu-ying, YANG Jia-huang, HE Ren-chun, QIN Li-mei, WEI Feng-ying, MAI Wei-hong, ZHOU Heng, LU Gui-you
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| (Guangxi Animal Science Institute, Nanning, Guangxi, 530001, China) |
| Abstract: |
| In feeding trial, sixty 28d old geese were randomly divided into 3 groups, and at the same time, green forage (such as ryegrass) was supplied.Feeding trial lasted 42d.The results showed: (1)In period of 28~49d old, geese of group 2 had better daily gain than those of group 1 or group 3, but there were no significant differences among 3 groups (P>0.05); (2)In period of 50~70d old, although geese of group 1 had better daily gain than those of group 2 or group 3, there were no significant differences among 3 groups (P>0.05); (3)Concentration of serum urea-nitrogen decreased with CP decreasing in diets (P<0.05), and there were no significant differences in the content of serum cholesterol, triglycerides, low-density lipoprotein, high-density lipoprotein and activities of alanine aminotransferase (ALT), aspartate aminotransferase (AST) among 3 groups. (4) Dietary CP level had no significant effect on slaughter performance and carcass quality of Hepu meat-type geese (P>0.05). (5) The nutrients in muscle indicated that DM, CP, TAA, TEAA, EE and inosinate were not different significantly among 3 treatments (P>0.05).But with dietary CP level increasing, nutrition and flavor of meat were slightly improved. |
| Key words: geese crude protein performance serum biological indexes carcass quality |
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