摘要
为研究断奶后不同时间公猪、光照刺激以及体况对母猪发情率和总产仔数的影响,选取同一批次断奶的二元母猪560头,随机分为4组,分别给予不同时间的公猪和光照刺激。结果显示,分别接受长时间公猪(12 min)和光照(16 h)刺激,发情率和总产仔数会极显著高于其他处理组(P<0.01)。此外,试验选取同一批次并处于第三胎的母猪116头,根据其分娩期上产床时的P 2点背膘厚,分为12～14 mm、15～18mm和19～21mm3组,跟踪记录断奶后7天内发情的数量和下一胎总产仔数。结果显示,背膘厚处于15～18 mm的母猪发情率和总产仔数高于其他组,并存在极显著差异(P<0.01)。研究表明,长时间的公猪和光照刺激以及控制母猪背膘厚在15～18 mm范围内,能极大的发挥母猪的繁殖性能,提高生产成绩。
To study the influences of estrus stimulation-different time boars and light-and body condition of sows to estrus rate and total number born.Select 560 same batch weaned binary sows,randomly divided into 4 groups,and give different lime of the boar and light stimulation.The result display that accept long boar and light stimulation respectively,the estrus rate and total number of litter will be significantly higher than other treatment groups.Besides,select 116 same batch and the third parity farrowing sows,they are divided into three groups according to the backfat P2,12- 14 mm.15-18 mm and 19-21 mm,and study the relationship with estrus rate after weaning and litter size in next parity.The results show that F1 sows get good estrus rate after weaning and significant differently when the backfat is 15 —18mm.Conclusion：long time boar contact and light stimulation and contralbactfat between 15-18 mm can greatlv increase the sow reproductive and production performance.
出处
《中国畜牧杂志》
CAS
北大核心
2016年第8期73-75,共3页
Chinese Journal of Animal Science
基金
国家现代农业产业技术体系(CAR-36)
长江学者和创新团队发展计划(IRT1191)
国家科技支撑计划(2011BAD28B01)
关键词
二元母猪
发情刺激
体况
发情率
产仔数
binary sow
estrus stimulation
body condition
estrus rate
total number born
