公牛的终生生产能力取决于其父母B血型系统抗原的相似性

A. Ugnivenko, O. Natalych
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摘要

在肉畜品种未来公牛亲本选择过程中,提高肉畜生产能力的主要指标是优先考虑的问题。寻找能够额外影响使用传统育种方法使用未来公牛的有效性的技术,决定了本研究的相关性。本研究的目的是确定基于B血型系统抗原的亲本对选择对终身使用乌克兰肉牛公牛的结果的影响,这种牛是通过四个不同品种的复杂生殖杂交方法产生的。本研究通过对不同组公牛的亲本抗原相似指数(ras)进行比较。通过ras值大于0.150形成一组同质选择亲本的后代(n=5)。在异质亲本选择组(n=5)中,该指标小于0.150。在竞技场上,公牛的性欲是通过在人工阴道上接受精子时的性反射表现来测试的。在各组中,确定了公牛第一次采集精子时的年龄,寿命和生产用途,接收和剔除的射精数量,以及精子的质量和受精能力。结果表明,与异质交配获得的雄牛相比,通过同质选择获得的雄牛的精子开始采集年龄有提高33.9%的趋势。它们的生产使用寿命也比普通汽车长6.3%,寿命比普通汽车长21.5%。在使用过程中,异种选择获得的公牛与稻草人的比例为13.6%,在射精数量上占主导地位。射精被剔除的比例是这个数字的两倍。同质选择的公牛有更高(15.3分)的性反射的积极表现,更大的射精量,更好的精子活力和集中指标,更少的被剔除的射精,以及更高的受精能力(18.2分)。所获得的结果应用于为乌克兰牛肉品种的有价值公牛的潜在母亲选择公牛和通过复杂生殖杂交方法产生的其他牲畜种群
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lifetime productivity of bulls depending on the similarity of their parents by antigens of the B blood group system
During the selection of parents of future bulls of meat breeds, the problem of improving the main signs of meat productivity is a priority. Search for techniques that would additionally influence the effectiveness of using future bulls using conventional breeding methods determines the relevance of this study. The purpose of the study was to determine the influence of the selection of parent pairs based on antigens of the B blood group system on the results of lifelong use of bulls of Ukrainian beef cattle, created by the method of the complex reproductive crossing of four different breeds. The study was conducted by comparing the performance of bulls assigned to different groups by the antigenic similarity index (ras) of their parents. By ras value over 0.150 formed a group of progenies from a homogeneous selection of parents (n=5). In the group from a heterogeneous selection of parents (n=5), the indicator ras less than 0.150. The libido of bulls was tested in the arena by the time of manifestation of sexual reflexes when receiving sperm on an artificial vagina. Within the groups, the age of bulls at the time of first sperm collection, life and productive use, the number of ejaculates received and culled, and the quality and fertilising ability of sperm were determined. It was identified that in bulls obtained from the homogeneous selection of parents by ras compared to peers from heterogeneous mating, there is a tendency to increase the age of initiation of sperm collection by 33.9%. They also have a longer productive use expectancy by 6.3% and a longer life expectancy by 21.5%. Bulls obtained from heterogeneous selection during use have more leads to the scarecrow by 13.6% and predominate in the number of ejaculates obtained. The percentage of ejaculate culled is twice as high. Bulls from homogeneous selection have a higher (by 15.3 points) share of active manifestation of sexual reflexes, a larger volume of ejaculate, better indicators of sperm motility and concentration, fewer culled ejaculates, and a higher fertilisation capacity of sperm by 18.2 points. The results obtained should be used in the selection of bulls for potential mothers of valuable bulls of the Ukrainian beef breed and in other livestock populations created by the method of complex reproductive crossing
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