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饲养方式及性别对肉用犊牛断奶后日增重影响的分析
引用本文:王香祖,席继锋,吴建平,M.A.Brown.饲养方式及性别对肉用犊牛断奶后日增重影响的分析[J].新疆农业科学,2011(10):1881-1885.
作者姓名:王香祖  席继锋  吴建平  M.A.Brown
作者单位:新疆农业职业技术学院;甘肃农业大学;艾尔里诺放牧草地研究实验室;
基金项目:甘肃农业大学与美国农业部艾尔里诺放牧草地研究实验室项目(01.9999)
摘    要:【目的】以不同品种的断奶后肉用犊牛为研究对象,分析饲养方式及性别对其日增重情况,为不同类型的育犊户购买犊牛及饲养犊牛提供一定的选择依据。【方法】采用最小二乘方差分析固定模型,对不同饲养方式及性别的犊牛试验适应期、试验期以及断奶后整个时期各阶段的日增重最小二乘均值进行比较与分析。【结果】育肥场配合饲粮饲养和小麦草场自由放牧饲养方式下,阉牛生长速度总比同一条件下青年小母牛快(P<0.10);在牧草长势好的春季,对育犊户而言,后备母牛进行自由放牧会更经济(P<0.10),而对架子牛经营者来说,春季自由放牧也会获得更理想的日增重(P<0.10)。【结论】断奶后同一饲养方式下阉牛总比母牛生长快。无论犊牛处于任何生长阶段,经营者都可以选择阉牛作为育肥架子牛。

关 键 词:肉用犊牛  断奶后日增重  饲养方式  性别  最小二乘均值

Effect of Postweaning Treatment and Sex on Calf Postweaning ADG
WANG Xiang-zu,XI Ji-feng,WU Jian-ping,M.A.Brown.Effect of Postweaning Treatment and Sex on Calf Postweaning ADG[J].Xinjiang Agricultural Sciences,2011(10):1881-1885.
Authors:WANG Xiang-zu  XI Ji-feng  WU Jian-ping  MABrown
Institution:WANG Xiang-zu1,XI Ji-feng1,WU Jian-ping2,M.A.Brown3 (1.Xinjiang Agricultural,Vocational & Technical College,Changji 831100,China,2.Gansu Agricultural University,Lanzhou,Gansu 730070,3.USDA-ARS,Grassland Research Laboratory,El Reno,OK 73036,USA)
Abstract:【Objective】Postweaning treatment and sex play an important role in calf postweaning ADG. The purpose of this study was to provide a basis for different types of households to buy calves and calf rearing.【Method】In this study least squares means and standard errors for postweaning ADG of calves sired by different breeds were calculated by using fixed models to analyze the effect of postweaning treatment and sex on calf postweaning ADG.【Result】The results indicated that the steers.grew faster than heifers whether they were on drylot on mixed rations or wheat pasture(P<0.10).In spring,reserve heifers and steers grazing on wheat pasture could be more economical(P<0.10).【Conclusion】The conclusion is;After weaning,under the same feeding steers always grow faster than cows.Both calves at any growth stage,the operator can choose steers as feeder cattle.
Keywords:calf  postweaning ADG  postweaning treatment  sex  least square means  
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