大通牦牛生产性能测定数据分析

Analysis of Production Performance Measurement Data for Datong Yak

通过测定大通牦牛的体尺、体重等相关指标,本试验对其生产性能数据进行深入分析,为优化大通牦牛养殖管理提供科学依据。结果表明,大通牦牛初生平均体重为15.75 kg,平均体高为56.21 cm,平均体斜长为52.92 cm,平均胸围为60.56 cm,平均管围为8.68 cm;6月龄牦牛平均体重为73.67 kg,平均体高为82.80 cm,平均体斜长为86.58 cm,平均胸围为109.83 cm,平均管围为11.82 cm;12月龄牦牛平均体重为86.15 kg,平均体高为89.58 cm,平均体斜长为96.45 cm,平均胸围为113.64 cm,平均管围为12.92 cm;18月龄牦牛平均体重为107.91 kg,平均体高为93.39 cm,平均体斜长为102.05 cm,平均胸围为122.36 cm,平均管围为12.94 cm。由此可知,大通牦牛各项指标在0~6月龄阶段增长速度最快,体重、胸围等重要产肉指标在12~18月龄阶段增长速度相对较高。

By measuring relevant indicators such as body size and weight of Datong yak,in-depth analysis of its production performance data is conducted to provide scientific basis for optimizing Datong yak breeding management.The results indicate that:The average birth weight of Datong yak is 15.75 kg,The average body height is 56.21 cm,the average body length is 52.92 cm,the average chest circumference is 60.56 cm,and the average tube circumference is 8.68 cm;The average weight at 6 months of age is 73.67 kg,the average body height is 82.80 cm,the average body length is 86.58 cm,the average chest circumference is 109.83 cm,and the average tube circumference is 11.82 cm;The average weight at 12 months old is 86.15 kg,the average body height is 89.58 cm,the average body length is 96.45 cm,the average chest circumference is 113.64 cm,and the average tube circumference is 12.92 cm;The average weight at 18 months old is 107.91 kg,the average body height is 93.39 cm,the average body length is 102.05 cm,the average chest circumference is 122.36 cm,and the average tube circumference is 12.94 cm.It can be inferred that,the growth rate of various indicators of Datong yak is the fastest in the 0~6 month age stage,the growth rate of important meat production indicators such as weight and chest circumference is relatively high in the 12~18 month age group.