PDF(Pubmed)
Abstract：
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 (p < 0.01), and the fineness of the cashmere produced by doe goats was significantly finer than that produced by buck goats (p < 0.01). The birth weight, weaning weight, and 6-month weight of single kids were significantly higher than those of multiple kids (p < 0.01), but the effect on the 12-month weight was not significant (p > 0.05). The age of doe goats at lambing had significant effects on birth weight, weaning weight, and 6-month weight (p < 0.01). Assay flock and age at measurement had significant effects on cashmere fineness, cashmere thickness, and cashmere yield (p < 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).
摘要：
目的探讨非遗传因素对内蒙古白绒山羊(二郎汉型)生长发育性能的影响,例如出生体重(BW)，断奶重量（WW），6个月体重（6WT），12个月体重（12WT），车身高度(BH),和身体长度(BL)，和羊毛的生产性能，如羊绒细度(CF)，羊绒厚度（CT），和羊绒产量(CY)。研究对象是北平纺织有限公司二郎山牧场的45只山羊和2269只山羊生产的4654只孩子。Ltd.,内蒙古,从2020年到2023年。基于广义线性模型,采用方差分析分析非遗传因素的影响，例如出生年份(Y)，出生月份（M），sex(S),出生类型（T），出生牛群(H)，测定群(F)，测量年龄(MA)，和羔羊母牛山羊的年龄(DLA)，生长发育性状和羊绒性状。结果表明,出生体重(BW),断奶重量（WW），6个月体重（6WT），12个月体重（12WT），体长(BL),车身高度(BH),胸部深度（CD），胸部宽度（CW），胸围（CC），大炮圆周（CNC），羊毛长度（WL），山羊的羊绒产量（CY）显着高于母牛山羊（p<0.01），母牛山羊生产的羊绒细度明显优于公羊（p<0.01）。出生体重,断奶体重,单身儿童的6个月体重显着高于多位儿童（p<0.01），但对12个月体重的影响不显著(p>0.05)。小羊时母羊的年龄对出生体重有显著影响，断奶体重,和6个月体重（p<0.01）。测定羊群和测量年龄对羊绒细度有显著影响，羊绒厚度,和羊绒产量(p<0.01)。本研究将为绒山羊的科学育种和管理提供依据,为内蒙古白绒山羊(二郎山型)遗传评价模型固定效应的设置奠定基础。
