泌乳期母猪的饲喂频率对其体况、生产和繁殖性能的影响

文章评估了哺乳期间母猪的饲喂频率(2或3次/d)对母猪体况、繁殖性能及仔猪生长性能的影响。试验选择68头母猪,随机分为8组(每组8~10头母猪),哺乳期间其中4组母猪每天饲喂2次,另外4组每天饲喂3次,母猪分为青年母猪(<2胎次)和老龄母猪(≥3胎次),试验结束后记录母猪体况评分、肩部组织病变、发情率、母猪生产及仔猪生长性能。结果显示:每天饲喂3次的母猪比饲喂2次的母猪采食量高(P<0.05),肩部组织病变低(P<0.05)。在每天饲喂3次的母猪中,青年母猪返情率为0%,老龄母猪返情率为29%,而在每天饲喂2次的母猪中,青年母猪发情率为20%,老龄母猪为5%。综上所述,在哺乳期,母猪每天饲喂3次较每天饲喂2次提高了采食量,对母猪体况评分和肩部组织病变有改善作用,同时也降低了年轻母猪的返情率。

Effects of feeding frequency on body condition,production and reproductive performance of lactation sows

This study evaluated the effects of feeding frequency(2 or 3 times/day)on sows’body condition,reproductive performance and piglets’growth performance during lactation.We selected 68 sows,randomly divided into 8 groups(each group of 8-10 sows),four groups of sows during lactation feeding 2 times per day,and the other four groups feeding 3 times per day,the sows separated into the young(<2 parity)and old(3 parity),after the test record the sow body condition scoring,shoulder tissue lesion,heat rate,sow production and piglet growth performance.The results showed that the intake of sows fed 3 times a day was higher than that of sows fed 2 times a day(P<0.05),and the lesion of shoulder tissue was lower(P<0.05).Among sows fed three times a day,the return to estrus rate of young sows was 0%and that of old sows was 29%,while among sows fed two times a day,the estrus rate of young sows was 20%and that of old sows was 5%.In conclusion,feeding sows 3 times a day during lactation can improve feed intake,improve sows’body condition score and shoulder tissue lesions,and reduce the rate of regurgitation of young sows.