不同胎次、不同配种季节对波尔山羊及其杂交后代窝产羔数的影响

摘要

In order to explore the reproductive performance of the Boer goat and its upgrading offspring, the effects of the fetal times and the mating season on the litter number were analyzed using SPSS10.0 from Boer goat and its upgrading offspring. The results showed that the fetal times had significant effect on the litter num- ber of Boer goats and their upgrading offspring ( P〈 0.05 or P〈 0.01 ), in which the litter size were high in all fetal times except for the first fetal time. For Boer goats, there were not significant differences among mating seasons on the litter number ( P〉 0.05 ), however, winter was the best mating season for the litter size, fol- lowed by autumn, and the worst mating season was summer. For upgrading offspring of Boer goat and'Tangshan Diary goats, summer was the best mating season for the litter size, followed by autumn and winter, and there was significant difference (P〈 0.05) in litter size between summer and winter.%为了探明波尔山羊及其杂交后代的繁殖性能，利用SPSS10．0软件分析了胎次和配种季节两因素分别对45窝波尔山羊和103窝波唐杂交后代羊窝产羔数的影响。结果表明，胎次对波尔山羊和波唐杂交后代羊均产生显著或极显著的影响（P〈0．05或P〈0．01），波尔山羊和波唐杂交后代羊除第1胎窝产羔数较少外，其它各胎次均为高产胎次。配种季节对波尔山羊窝产羔数影响不显著（P〉0．05），冬季配种窝产羔数最高，其次是秋季，最差是夏季；对于波唐杂交后代羊，夏季配种窝产羔数最高，其次是秋季，最差是春季，且夏季与冬季达显著差异（P〈0．05）。