The behaviour of pigs weaned at 12 and 21 days of age from weaning to market
The behaviour of pigs weaned at 12 and 21 days of age from weaning to market
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DOI：
10.4141/a98-023
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发表时间：
1998-12-01
影响因子：
1
通讯作者：
Patience, JF
中科院分区：
文献类型：
--
作者：
Gonyou, HW;Beltranena, E;Patience, JF
在北美，对21日龄以下仔猪进行早期隔离断奶(SEW)正成为一种越来越常见的程序。这样的早期断奶在商业上是可行的，通过使用非常可口的苗圃饮食，在断奶后的一周增加了摄入量。进行了一项研究，以确定这种早期断奶对仔猪行为的影响。在12日龄或21日龄断奶32窝。在随后的48小时内，对猪进行录像，并通过扫描取样确定猪的进食行为的发展。21日龄断奶仔猪的进食时间显著长于12日龄断奶仔猪(P<；0.05)。虽然这两个年龄段的人都吃得很少(
Segregated early weaning (SEW) of piglets at less than 21 d of age is becoming an increasingly common procedure in North America. Such early weaning has become commercially feasible through the use of highly palatable nursery diets, which increase intake during the week following weaning. A study was conducted to determine the effects of such early weaning on the behaviour of piglets. Thirty-two litters were weaned at either 12 or 21 d of age. During the subsequent 48 h, pigs were videotaped and the tapes used to determine the development of eating behaviour using scan sampling. Pigs weaned at 21 d of age spent more time eating than those weaned at 12 d of age (P < 0.05). Although both age groups ate little (