牛头羊和阿斯卡尼亚优良羊毛品种的羊毛的保护特性取决于育种分化等级

Vasyl Tyrunskiy, N. Bogdanova, Peter Lyutskanov
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引用次数: 0

摘要

绒线内外区的湿度和污染影响因素的研究,进而影响纯羊毛的产量及其工艺性能,是当前细绒羊养殖的问题之一。本研究的目的是根据绵羊的育种分化等级来评价羊毛的保护性能。等级的确定是根据动物在种群中的正态分布规律和群体繁殖指标来确定的。我们使用了10个等级。本文介绍了对短纤维矿物杂质含量和污染程度的实验室研究结果。将绵羊分为10个等级的育种分化。考虑了种群中动物正态分布的规律性。所得数据表明,品种羊在羊毛中矿物杂质含量方面是非常大的。变异系数为35%,变异等级在13.7% ~ 38.4%之间。随着种羊总数组数的增加,变异系数值减小(rs=-0.871±0.245)。随着品种分化等级的增加,短绒外区污染的平均绝对指标呈增加趋势(rs = +0.257±0.483),相对指标呈下降趋势(rs =-0.600±0.400)。短钉内区平均绝对污染率为3.02 cm,等级范围为2.83 ~ 3.29 cm。根据污染的相对程度,这些指标分别为32.5%和31.0 ~ 35.2%。随着绵羊品种分化等级的增加,短绒内带长度污染的绝对指标增加(rs = +0.600±0.400),相对指标有降低的趋势(rs =-0.486±0.437)。单个品种的母羊短绒内带的污染程度是相当高的。该特征的绝对变异系数为28.5%,相对变异系数为30.4%。变异系数的值随着动物繁殖目的等级的增加而略有下降。绝对相关系数为-0.371±0.464,相对相关系数为-0.543±0.420。母羊主要类群的育种差异很低。使用这种等级技术可以控制羊的评估系统,并在分析和选择的最后阶段补充育种差异的价值;在生产条件允许的技术条件下形成羊群,生产出优秀的公羊育种者
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Protective properties of the fleece of Taurian ewesof the Askanian fine fleece breed depending on the breeding differentiation rank
The study of factors affecting the humidity and contamination of the outer and inner zones of the staple, which further affects the yield of pure wool and its technological properties, is one of the current problems of fine-fleeced sheep breeding. Purpose of the study – evaluate the protective properties of wool fleece depending on the rank of breeding differentiation of sheep. The determination of ranks is based on the regularities of the normal distribution of animals in the population and herd reproduction indicators. 10 ranks were used. The paper presents the results of a laboratory study of the content of mineral impurities and the degree of contamination of the staple. Sheep were divided into 10 ranks of breeding differentiation. The regularities of the normal distribution of animals in the population are considered. The obtained data indicate that the variety of sheep in terms of the content of mineral impurities in wool is very large. The coefficient of variation is 35% with a variation in the ranks of breeding differentiation from 13.7 to 38.4%. With an increase in the group of the total value of sheep for breeding purposes, the value of the coefficient of variation decreases (rs=-0.871±0.245). With an increase in the ranks of breeding differentiation, the average absolute indicators of contamination of the outer zone of the staple tend to increase (rs = +0.257 ± 0.483), and the relative values decrease (rs =-0.600 ± 0.400). The average absolute contamination rate of the inner zone of the staple is 3.02 cm with a range of ranks from 2.83 to 3.29 cm. According to the relative degree of contamination, these indicators are 32.5% and from 31.0 to 35.2%, respectively. With an increase in the breeding differentiation rank of sheep, the absolute indicators of contamination of the length of the inner zone of the staple increase (rs = +0.600 ± 0.400), and relative values tend to decrease (rs =-0.486 ± 0.437). The individual variety of ewes in terms of the degree of contamination of the inner zone of the staple is quite high. The coefficients of variation for absolute and relative indicators of this feature are 28.5 and 30.4%, respectively. The value of the coefficients of variation decreases slightly with an increase in the ranks of breeding purposes of animals. The rank correlation is -0.371 ± 0.464 in absolute terms and -0.543 ± 0.420 in relative terms. Breeding differentials of the leading groups of ewes are low. Using this rank technique allows controlling the system of sheep valuation, supplementing it with the value of breeding differentials at the final stages of analysis and selection; in production conditions allows forming technological groups of sheep to produce outstanding ram breeders
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