Shi Yue, Qi Yunpeng, Liu Yan, Rong Youjun, Ao Xiaofang, Zhang Mingzhu, Xia Qincheng, Zhang Yanjun, Wang Ruijun
College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
Erlangshan Ranch of Inner Mongolia Beiping Textile Co., Ltd., Bayan Nur 015000, China.
Vet Sci. 2024 Jul 10;11(7):308. doi: 10.3390/vetsci11070308.
The purpose of this study was to investigate the effects of non-genetic factors on the growth and development performance of Inner Mongolia white cashmere goats (Erlanghan type), such as birth weight (BW), weaning weight (WW), 6-month weight (6 WT), 12-month weight (12 WT), body height (BH), and body length (BL), and wool production performance, such as cashmere fineness (CF), cashmere thickness (CT), and cashmere yield (CY). The research objects were 4654 kids produced by 45 buck goats and 2269 doe goats in the Erlang Mountain Ranch of Beiping Textile Co., Ltd., Inner Mongolia, from 2020 to 2023. Based on the generalized linear model, ANOVA was used to analyze the effects of non-genetic factors, such as birth year (Y), birth month (M), sex (S), birth type (T), birth herd (H), assay flock (F), age at measurement (MA), and the age of doe goats at lambing (DLA), on growth and development traits and cashmere traits. The results show that the birth weight (BW), weaning weight (WW), 6-month weight (6 WT), 12-month weight (12 WT), body length (BL), body height (BH), chest depth (CD), chest width (CW), chest circumference (CC), cannon circumference (CNC), wool length (WL), and cashmere yield (CY) of buck goats were significantly higher than those of doe goats ( < 0.01), and the fineness of the cashmere produced by doe goats was significantly finer than that produced by buck goats ( < 0.01). The birth weight, weaning weight, and 6-month weight of single kids were significantly higher than those of multiple kids ( < 0.01), but the effect on the 12-month weight was not significant ( > 0.05). The age of doe goats at lambing had significant effects on birth weight, weaning weight, and 6-month weight ( < 0.01). Assay flock and age at measurement had significant effects on cashmere fineness, cashmere thickness, and cashmere yield ( < 0.01). This study will provide a basis for the scientific breeding and management of cashmere goats and lay a foundation for the setting of fixed effects in the genetic evaluation model of Inner Mongolia white cashmere goats (Erlangshan type).
本研究旨在探讨非遗传因素对内蒙古白绒山羊（二郎罕型）生长发育性能的影响，如出生体重（BW）、断奶体重（WW）、6月龄体重（6 WT）、12月龄体重（12 WT）、体高（BH）和体长（BL），以及产绒性能，如羊绒细度（CF）、羊绒厚度（CT）和羊绒产量（CY）。研究对象为2020年至2023年内蒙古北平纺织有限公司二郎山牧场45只公羊和2269只母羊所产的4654只羔羊。基于广义线性模型，采用方差分析来分析出生年份（Y）、出生月份（M）、性别（S）、出生类型（T）、出生群体（H）、测定群体（F）、测量时年龄（MA）以及母羊产羔时年龄（DLA）等非遗传因素对生长发育性状和羊绒性状的影响。结果表明，公羊的出生体重（BW）、断奶体重（WW）、6月龄体重（6 WT）、12月龄体重（12 WT）、体长（BL）、体高（BH）、胸深（CD）、胸宽（CW）、胸围（CC）、管围（CNC）、毛长（WL）和羊绒产量（CY）显著高于母羊（<0.01），母羊所产羊绒的细度显著细于公羊所产羊绒（<0.01）。单羔的出生体重、断奶体重和6月龄体重显著高于多羔（<0.01），但对12月龄体重的影响不显著（>0.05）。母羊产羔时年龄对出生体重、断奶体重和6月龄体重有显著影响（<0.01）。测定群体和测量时年龄对羊绒细度、羊绒厚度和羊绒产量有显著影响（<0.01）。本研究将为绒山羊的科学选育和管理提供依据，并为内蒙古白绒山羊（二郎山型）遗传评估模型中固定效应的设定奠定基础。
