种公羊

应用同期发情与后裔测验相结合的方法，对种公羊基因型值用BLUP法进行选择。

In addition , the methods of estrus synchronization and progeny test were also utilized . Selection of genotypic values of breeding rams was fulfilled using BLUP estimation .

通过对本研究种公羊日粮4种锌水平对精液品质影响的综合分析，认为53.83mg/kg锌含量水平是保证种公羊获得品质良好的精液、维持旺盛繁殖性能的最低营养需要。

The ram with good seminal quality and breeding performance was fed zinc level of 53.83mg/kg at least .

锌缺乏种公羊在适宜的补锌条件下（53.83mg/kg-65.26mg/kg），精液品质各项指标随着补锌时间的延长而持续得到有效改善，60天后达到理想状态。

The rams with deficiency zinc were fed 53.83mg/kg-65.26mg/kg can increase some indexes of seminal quality with fed days , after 60 days it possessed ideal condition .

小尾寒羊种公羊的培育

Breed of Breed ing Ram of Han-sheep with Small Tail

优秀湖羊种公羊被毛特性的研究

Study on the fleece characters of high-class breeding rams of Hu Sheep

青山羊种公羊能量需要量的研究

Stud y on the energy requirement for Qing bucks

选用10只南江黄羊种公羊随机分为试验组和对照组。

Ten rams were divided at random into experiment group and control group .

年龄、季节对波尔山羊种公羊精液质量的影响

The affect of age and the season on semen quality in bore goat ram

种公羊连续12个月的精液品质测定

Continual evaluation of ram semen for 12 months

内蒙古细毛羊种公羊能量和蛋白质需要量的研究

A Study on the Energy and Protein Requirements for Inner Mongolia Fine Wool Breeding Rams

对湖羊优秀种公羊与一般种公羊的被毛特性进行羊毛学分析。

The fleece characters of high-class and ordinary breeding rams of Hu Sheep were evaluated .

本文应用通用选择指数原理探讨了有关种公羊选种决策的几个问题。

Several problems associated with selection strategies of breeder rams are discussed using the general selection index .

本研究根据生产实际情况提出了一套选择种公羊的具体方法。

At last , this study gave a series of methods of selecting sires based on objective reality .

应用次级样本含量不等的两因子最小二乘方差分析法估计种公羊的产羔效应值，表明种公羊间存在着繁殖性能方面的差异。

The lambing effect values showed that the significant differences were existed between stock rams by the least square variance analysis .

利用此模型评定出61只种公羊的优劣次序，选定出品系繁育继承公羊。

Using the model , breeding value of 61 stud rams were predicted , 20 of them were selected as stud ram .

采用饲养试验、消化代谢试验和配种试验相结合的方法，测定了成年种公羊能量和蛋白质代谢的基础数据。

The basic data on the metabolism and utilization of energy and protein of the breeding rams were obtained by feeding experiments , digestion and metabolism trials and breeding tests .

四年的适应饲养过程中，种公羊的精液品质基本维持在正常水平，母羊的生产性能也没有变化；

During four-year 's orientational feeding , quality of semen of the male goat maintained the normal level , and the capability of reproduction of the ewe also has no variety .

22只供体羊发情与纯种波尔山羊种公羊配种后第7天，手术回收输卵管中早期发育胚胎再经手术移入同期发情的受体奶山羊输卵管内妊娠产仔。

All the donors were in heat and mated with pure Boer stud rams . After 7 days the early embryos were collected from ovary ducts of the donors and transferred into ovary ducts of estrus-synchronized recipients surgically .

牛黄是一种从公羊胃内取出的石头可以化解绝大多数的毒药。

A bezoar is a stone taken from the stomach of a goat 's and will save you from most of the poisons .