【摘要】 通过分析2004—2006年经产母猪的生产数据,研究不同气温对母猪的受胎率、流产率、早产率及平均窝产仔数、平均窝产活仔数、初生均重、断奶重、断奶成活率的影响。结果发现,不同气温对母猪繁殖性能的影响显著,其中在3,4,5月份,母猪繁殖性能较高,在7,8,9月份则较低,最适宜温度16~20℃;哺乳仔猪在18~27℃时生长最快。更多还原

【Abstract】 We studied the effects of different air temperature on the sows’ conception rate,absorption rate,and premature birth rate,living littermate’s average number,piglets’ average birth weight,weaned weight,and survival rate by analyzed the mulitiparous sows’ productive data from 2004 to 2006.The results showed that,the effects of different air temperature on the sows’ reproductive performance was significant,and the sows’ reproductive performance was the highest in March,April,and May,and the lowest in July,August,and September,respectively.The optimal temperature for sows’ reproduction and suckling piglets grow fastest was 16-20℃ and 18-27℃,respectively.更多还原