Abstract

The wool and meat production of Khangil-type fine-fleece sheep within the Trans-Baikal breed has been studied. It is ascertained that 33.5, 59.1, and 7.4% of sheep are assigned to elite, first class, and second class, respectively, according to the rank structure. Liveweights of fine-fleece rams, replacement rams, ewes, and ewe lambs of the Khangil type exceed the breed standard for liveweight by 28.9, 38.7, 30.0, and 18.9%, respectively, and the breed standard for washed-wool clip by 42.6, 24.0, 22.7, and 38.9%, respectively. Analysis of fine wool quality revealed that rams’ wool corresponds to grade 60, while the wool of ewes, ram lambs, and ewe lambs is grade 64. The wool comfort factor of 86.1% was highest in the rams. It was 6.1, 3.1, and 5.4% higher than that in replacement rams, ewes, and ewe lambs, respectively. Coefficients of correlation between the wool fineness and its crimp and between the fineness and the comfort factor were negative in all the sex and age groups. These coefficients were rather high. A positive correlation of mean intensity (r = 0.274–0.652) between the wool fineness and the comfort factor was revealed. The results of slaughtering the fine-fleece ram lambs at the age of 6 months for control purposes indicated their high meat production performance. Thus, slaughter weight, slaughter yield, meat at grade 1, and coefficient of meatiness comprised 16.7 kg, 46.3%, 91.0%, and 3.4, respectively.

中文翻译：

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Khangil型反贝加尔湖羊的羊毛和肉类生产

摘要

已经对跨贝加尔湖犬种中的Khangil型细绒绵羊的羊毛和肉类生产进行了研究。可以确定，根据等级结构，分别将33.5％，59.1％和7.4％的绵羊分配为精英，一等和二等。Khangil型的细绒公羊，替代公羊，母羊和母羊羔的活重分别比活重标准高28.9％，38.7％，30.0和18.9％，而洗羊毛夹的繁重标准高42.6％，分别为24.0％，22.7％和38.9％。对优良羊毛质量的分析表明，公羊的羊毛符合60级，而母羊，公羊羔和母羊羔的羊毛则为64级。公羊的羊毛舒适度最高，为86.1％。比替代公羊，母羊和母羊羔分别高6.1、3.1和5.4％。在所有性别和年龄组中，羊毛细度与其卷曲之间以及细度与舒适度之间的相关系数均为负。这些系数相当高。平均强度呈正相关（显示出羊毛的细度和舒适度之间的r = 0.274–0.652）。出于控制目的对6个月大的羔羊羔进行宰杀的结果表明，它们具有很高的肉类生产性能。因此，屠宰体重，屠宰量，1级肉和肉质系数分别为16.7千克，46.3％，91.0％和3.4。