摘要
以连续分娩6胎的长大二元杂种母猪为研究对象,应用SPSS 19.0软件的单因素方差分析对5 175头母猪的前6胎产仔数据进行分析,以探讨母猪前2胎生产性能与后续胎龄繁殖性能的关系。研究结果表明,母猪前2胎繁殖成绩均相对较低,其中第2胎母猪窝产仔数为11.56头,窝产健仔数为10.22头,为前6胎中最差的;但随着母猪前2胎产仔性能的提高,后续4胎的繁殖成绩也能够极显著提高。然而,当前2胎窝产仔数均低于10头时,其后续4胎的平均窝产仔数仅在12头以下,相比同阶段其他母猪低了0.6头以上(P<0.01)。综上,母猪前2胎产仔性能可以作为评价母猪繁殖力的重要依据。
The One-Way ANOVA of SPSS 19.0 software was used to analyze the continuous delivery of 6parities of 5 175 Landrace-Yorkshire hybrid sows for studying the effect of litter size in parity 1 and 2 on consecutive reproductive performance.This study results had the following：first of all,the reproductive performance of the first 2 litters of sows was the worst in the first 6 litters,among which the litter size and the litter of qualified piglets in parity 2 was respectively 11.56 and 10.22.Secondly,the reproductive performance in parity 3 to 6 could be significantly improved with the increase of litter size in parity 1 and 2.Thirdly,if the litter size in first 2 parities was lower than 10,the reproductive performance in parity 3 to 6 would be less than 12.Compared with other sows in first 2 parities,the output in consecutive 4 parities was significantlyless than 0.6heads or more（P〈0.01）.Comprehensive above,the reproductive performance in parity 1 and 2 is one of the measurements to estimate sow fertility.
出处
《养猪》
2016年第5期25-28,共4页
Swine Production
关键词
母猪
胎龄
产仔性能
二胎综合征
选留
sow, parity, reproductive performance, second-litter syndrome, culling,
