中国农业科学 ›› 2012, Vol. 45 ›› Issue (1): 159-169.doi: 10.3864/j.issn.0578-1752.2012.01.019

• 畜牧·资源昆虫 • 上一篇    下一篇

日粮代谢能和蛋白质水平对30—39周龄岭南黄羽肉种鸡繁殖性能的影响

 朱翠, 蒋宗勇, 蒋守群, 周桂莲, 林映才, 陈芳, 郑春田, 洪平   

  1. 1.广东省农业科学院畜牧研究所/畜禽育种国家重点实验室/农业部华南动物营养与饲料重点实验室/广东省动物育种与营养公共实验室/广东省畜禽育种与营养研究重点实验室,广州 510640
    2.华南农业大学动物科学学院,广州 510642
  • 收稿日期:2011-02-18 出版日期:2012-01-01 发布日期:2011-06-17
  • 通讯作者: 通信作者蒋宗勇,Tel:020-87596262;Fax:020-87503358;E-mail:jiangz38@gmail.com
  • 作者简介:朱 翠,E-mail:zc524@163.com
  • 基金资助:

    国家公益性行业(农业)科研专项(200903006)、国家肉鸡产业技术体系项目(CARS-42)

Effect of Dietary Metabolizable Energy and Crude Protein Levels on Performance of Lingnan Yellow-Feathered Broiler Breeders

 ZHU  Cui, JIANG  Zong-Yong, JIANG  Shou-Qun, ZHOU  Gui-Lian, LIN  Ying-Cai, CHEN  Fang, ZHENG  Chun-Tian, HONG  Ping   

  1. 1.广东省农业科学院畜牧研究所/畜禽育种国家重点实验室/农业部华南动物营养与饲料重点实验室/广东省动物育种与营养公共实验室/广东省畜禽育种与营养研究重点实验室,广州 510640
    2.华南农业大学动物科学学院,广州 510642
  • Received:2011-02-18 Online:2012-01-01 Published:2011-06-17

摘要: 【目的】研究日粮中不同代谢能(ME)和蛋白质(CP)水平对产蛋高峰期(30—39周龄)岭南黄羽肉种鸡生长性能、产蛋性能和孵化性能的影响。【方法】采用3(ME:11.09、11.51和11.92 MJ•kg-1)×3(CP:15.5%、16.5%和17.5%)两因子试验设计,选取1 134只健康的30周龄快大型岭南黄羽父母代肉种鸡,随机分成9组,每组6个重复,每个重复21只。试验期10周。统计各个重复的体增重、料蛋比、产蛋率、日产蛋重、平均蛋重、种蛋破损率、不合格蛋比率、受精率、18日活胚率、孵化率和健雏率。【结果】(1)11.92 MJ•kg-1ME处理组试验鸡只的体增重显著高于11.51 MJ•kg-1ME处理组(P<0.05),极显著高于11.09 MJ•kg-1ME处理组(P<0.01),其料蛋比显著低于11.51和11.09 MJ•kg-1ME处理组(P<0.05);而CP水平对试验鸡只的体增重和料蛋比无显著性影响(P>0.05);(2)产蛋性能:11.92 MJ•kg-1ME处理组产蛋率和日产蛋重最高(P<0.01);11.51和11.92 MJ•kg-1ME处理组平均蛋重显著高于11.09 MJ•kg-1ME处理组(P<0.05);11.92 MJ•kg-1ME处理组种蛋破损率也高于11.51和11.09 MJ•kg-1ME处理组(P<0.05);不合格蛋比率以11.09 MJ•kg-1ME处理组最高(P<0.05),ME和CP水平对试验鸡只不合格蛋比率具有显著的互作效应(P<0.05);与CP 15.5%处理组相比,日粮CP水平为16.5%和17.5%时,显著提高了平均蛋重,并显著降低了种蛋破损率(P<0.05);(3)孵化指标:日粮ME为11.92 MJ•kg-1或CP为16.5%时,雏鸡初生重显著高于其它处理组(P<0.05),但各处理组的受精率、18日活胚率、孵化率和健雏率均无显著性差异(P>0.05)。【结论】30—39周龄岭南黄羽肉种鸡获得最佳繁殖性能的日粮适宜ME和CP水平分别为11.92 MJ•kg-1和16.5%,每日ME和CP需要量分别为1.55 MJ和21.45 g。

关键词: 代谢能, 粗蛋白质, 繁殖性能, 岭南黄羽肉种鸡

Abstract: 【Objective】 This experiment was conducted to investigate different dietary levels of metabolizable energy and crude protein on performance of Lingnan Yellow-Feathered Broiler Breeders. 【Method】 A total of 1 134 30-week-old Lingnan Yellow-Feathered Broiler Breeders were randomly assigned into 3×3 factorial dietary treatments with 3 dietary metabolizable energy (ME) levels at 11.09, 11.51, and 11.92 MJ•kg-1 and 3 crude protein (CP) levels at 15.5%, 16.5%, and 17.5%. Each dietary treatment had 6 replicates with 21 birds per replicate. Experimental birds were fed 130 g of diet per bird every day. Growth performance, laying performance, and egg incubation indicators were determined. The trial lasted for 10 weeks.【Result】Broiler breeders fed       11.92 MJ•kg-1 ME diet had significantly greater weight gain and lower FCR (feed intake/egg mass ratio) when compared with birds of other ME groups (P<0.01). However, CP levels had no significant influence on weight gain and FCR of broiler breeders (P>0.05). An increase in dietary ME from 11.09 to 11.92 MJ•kg-1 of diet significantly improved egg production, average egg weight, and daily egg mass (P<0.05). Diet containing 16.5% CP or 17.5% CP significantly increased the average egg weight and reduced the egg breakage of broiler breeders (P<0.05) compared to 15.5% CP treatment. There was a significant interaction between ME and CP levels on unqualified egg percentage and hatchability (P<0.05). Chick birth weight was significantly improved by dietary 11.92 MJ•kg-1 ME and 16.5% CP treatments when compared to 11.09 MJ•kg-1 ME treatment and 15.5% CP treatment, repectively (P<0.05). 【Conclusion】The results indicated that the optimal dietary ME and CP level for Yellow-Feathered Broiler Breeders at 30-39-week of age was 11.92 MJ•kg-1 and 16.5%, respectively, whose ME and CP requirements as units per hen per day was estimated to be 1.55 MJ and 21.45 g, respectively.

Key words: metabolizable energy, crude protein, performance, Yellow-Feathered Broiler Breeders