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作 者:贾娟娟[1] 滚双宝[1] 林长光 刘天宝 余炜 赵芳芳[1] 姜天团[1] 封洋[1]
机构地区:[1]甘肃农业大学动物科学技术学院,甘肃兰州730070 [2]福建光华百斯特生态农牧发展有限公司,福建三明365106 [3]兰州军区农业新技术试验培训基地,甘肃兰州730617
出 处:《甘肃农业大学学报》2015年第1期1-4,13,共5页Journal of Gansu Agricultural University
基 金:甘肃省科技重大专项"高繁殖力猪新品系选育研究"(092NKOA036)
摘 要:选择福建某种猪场2010年8月至2013年12月14 466窝二元母猪,分析其繁殖性能,研究不同胎次、选配月份、分娩月份对母猪生产性能的影响.结果表明:6胎的总产仔数、产活仔数、配种分娩率显著高于1胎(P〈0.05);5月份配种、9月份分娩的母猪生产性能最低;6-8月份因高温应激导致正常发情率比较低、返情率比较高,11-12月份配种的母猪繁殖性能最高.In order to study the influence of different parities,mating months and birth months on re-productive performance of sows,the performances of 14 466 nets LY (‘Landrance’× ‘Yorkshire’or‘Yorkshire’× ‘Landrance’)sows in a farm of Fujian Province from August 2010 to December 2013 were analyzed.The results showed that the total number of born,number of born alive and parturition rate of 6th parity were all significantly higher than those of 1st parity(P〈0.05).The performances of sows which mated in May and delivered in September were the worst.The estrus returning rate of July and August were the highest.The estrus rate of June,July and August were the lowest.The performances of sows which mated in November and Deccember and delivered in March and April of next year were the best.
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