Mochammad Hafizh Zulkarnaen, H. Indrijani, Muhamad Fatah Wiyatna, A. Anang
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引用次数: 0
摘要
由于其具有统一的物理形态和遗传组成,以及对环境约束的良好适应能力,因此继续进行Ongole级牛的开发。选择肉牛时可以考虑肉牛的数量特点,这样才能获得性能最好的肉牛。本研究的目的是分析2014 - 2021年BPTU-HPT Sembawa的Ongole级牛的出生体重、断奶体重(205天)和1年体重的表现,这些表现受性别和胎次的影响。共使用体重记录1125条,其中出生体重记录424条,断奶体重记录360条,一岁体重记录341条,其中9头,178头,公犊199头,母犊225头。采用通用线性模型(General Linear Model, GLM)和Duncan多元极差检验对记录进行分析,采用SAS 9.0软件确定性别和胎次的影响。结果表明,性别和胎次对出生性能、断奶性能和初生重有显著影响(P<0.05)。在进行遗传参数分析之前,应先对恩格尔杂交牛的体重性能进行校正,以减少选择结果可能出现的偏差。
Body Weight Performance of Ongole Grade Cattle at BPTU-HPT Sembawa Banyuasin South Sumatra
Ongole Grade cattle development continues to be carried out, because it has a uniform physical form and genetic composition, as well as the ability to adapt well to environmental constraints. Selection of beef cattle can be done by considering the quantitative characteristics of beef cattle, so that beef cattle with the best performance can be obtained. The aim of the study was to analyze the performance of birth weight, weaning weight (205 days), and yearling weight in Ongole Grade cattle at BPTU-HPT Sembawa from 2014 – 2021 which is influenced by sex and parity. The total records used were 1,125 weight records consisting of 424 birth weight records, 360 weaning weight records, and 341 yearling weight records, which consisted of 9 sires, 178 dams, 199 male calves and 225 female calves. Records were analyzed using the General Linear Model (GLM) and Duncan Multiple Range Test to determine the effect of sex and parity using SAS 9.0 software. The results showed that the performance of birth, weaning, and yearling weight were significantly affected (P<0.05) by sex and parity. Correction of body weight performance of Ongole Crossbreed cattle should be carried out before analyzing genetic parameters to reduce possible bias in the selection results.