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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (2): 1-5.

所属专题： 畜牧兽医

• 畜牧 动物医学 蚕 蜂 •    下一篇

纳米氧化锌对肉鸡生长性能和屠宰性能的影响

田丽娜,姜建阳,朱风华,任慧英,李文立   

  • 收稿日期:2008-10-10 修回日期:2008-11-24 出版日期:2009-01-20 发布日期:2009-01-20

Effects of Nano-Zinc Oxide on the Production and Dressing Performance of Broiler

  • Received:2008-10-10 Revised:2008-11-24 Online:2009-01-20 Published:2009-01-20

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摘要： 【研究目的】本试验研究了纳米氧化锌对肉鸡生长性能和屠宰性能的影响。【方法】选用1日龄AA肉鸡192只，随机分为4个处理组，每组设4个重复，每重复12只鸡。在玉米-豆粕型日粮基础上添加纳米氧化锌0（对照）、40、80、120mg/kg，试验期6周。【结果】试验结果表明：整个试验期内，添加纳米氧化锌的试验组平均增重与对照组差异不显著（P＞0.05）。1~21d，纳米氧化锌在40mg/kg的添加水平肉鸡的饲料消耗显著低于对照组(P＜0.05）；料重比差异极显著(P＜0.01）；22~42d，纳米氧化锌在40mg/kg的添加水平肉鸡料重比显著低于对照组（P＜0.05）。于21、42日龄，每处理随机抽取12只，每重复3只，屠宰测定屠宰指标。结果表明：21d时试验组对肉鸡屠宰性能未产生显著影响（P＞0.05），但所有测定指标中试验组均高于对照组（P＞0.05）；42d时纳米氧化锌在40mg/kg的添加水平肉鸡的屠宰率极显著高于对照组(P＜0.01），肉鸡半净膛率显著高于对照组(P＜0.05）；添加纳米氧化锌的试验组肉鸡全净膛率、腹脂率、腿肌率、胸肌率与对照组差异不显著（P＞0.05）。【结论】因此，纳米氧化锌在40mg/kg的添加水平对提高肉鸡生长性能和屠宰性能效果最佳。

关键词: 地理信息网格, 地理信息网格, 数字农业, 农业信息化

Abstract: 【OBJECTIVE】 The experiment was conducted to study the effects of nano-zinc oxide on the production performance and dressing performance of broiler.【METHOD】 One hundred and ninety-two Arbor Acres (AA) broilers at the age of 1day old were randomly divided into 4 treatments. All treatments were replicated 4 times, using 12 birds per pen. The supplementation of nano-zinc oxide was 0(the control), 40, 80, 120mg/kg for each treatment, respectively. The experiment lasted 6 weeks.【RESULTS】 The experiment results were as follows: During the whole experiment, the difference of the average weight gain was not significant(P＞0.05) between the groups of adding nano-zinc and the control. From 1 to 21d, the feed consumption decreased significantly at the level of 40mg/kg of nano-zinc oxide (P＜0.05), the feed/gain(F/G) was extremely significant(P＜0.01). From 22 to 42d, the F/G decreased significantly at the level of 40mg/kg of nano-zinc oxide (P＜0.05). On the 21st and 42nd day, 12 broilers in each group were selected randomly and slaughtered, and slaughter performances were determined. The results showed that the experimental groups did not influence significantly on dressing performance at 21d, but the experimental groups were higher than the control group in all indexes. The slaughter percentage of the broiler with nano-zinc oxide at the level of 40mg/kg was extremely higher than the control group(P＜0.01)at 42d. The half eviscerated percentage of the broiler was extremely higher than the control group(P＜0.05). The difference of eviscerated percentage, abdominal fat percentage, leg muscle percentage and breast muscle percentage of the broiler between the experimental groups and the control group was not significant (P＞0.05).【CONCLUSION】In conclusion, the nano-zinc oxide can promote the production performance and dressing performance at the level of 40mg/kg.