【摘要】 本文根据大柳种羊场1988年126头母羊的周岁鉴定资料,分析了单双羔羊之间的差异性。结果表明,二者在初生重（x₁）、断奶重（x₃）、周岁体重（y₁）、周岁毛长（y₂）和周岁剪毛量（y₃）5个性状之间存在着显著差异;而断奶日龄的差异不显著。进而分析了上述性状之间的相关性,结果显示断奶重与周岁体重以及周岁剪毛量之间有显著相关,为生产实践中以断奶重作为早期选择的主要指标提供了理论基础。更多还原

【Abstract】 Analysed raw materinl of 126 ewes in 1988 by the differences between singles and twins showed that the traits of birth weight, weaning weight, yearling weight, yearling wool length and wool clip were significant difference, but were significant correlation between weaning weight, yearling weight and yearling wool clip.更多还原