Creep feed intake is variable and may be partly homeostatically and exploratory driven. We studied effects of maternal feed restriction and a 'play-feeder' on piglet behaviour and performance. 37 Litters received creep feed in a conventional (CON) or play-feeder (PL) and their sows were full-fed (FF) or restrictedly-fed (RES). Eaters were determined via rectal swabs. At weaning (d24) four piglets from the same treatment were grouped (n = 36 pens). RES hindered piglet growth by 41 g/d and enhanced time eating, creep feed intake and percentage of eaters at weaning versus FF. RES-PL had the largest proportion of moderate and good eaters. PL stimulated feeder exploration and attracted more piglets to the feeder than CON. Post-weaning, RES increased exploratory behaviours, feed intake between d0-5, and growth between d0-2, and reduced body lesions between d0-2 (within CON), drinking and ear biting. PL increased ingestive behaviours, feed intake and growth between d0-15, and BW at d15 post-weaning by 5%. PL also lowered the prevalence of watery diarrhoea, number of body lesions and piglets with ear (within FF) and tail (within RES) damage at d15 post-weaning. Treatments did not affect FCR. To conclude, RES and particularly PL (broader and for longer) result in less weaning-associated-problems.

译文

蠕变采食量是可变的,可能部分是稳态和探索性驱动的。我们研究了母性饲料限制和 “游戏者” 对仔猪行为和性能的影响。37窝在常规 (CON) 或饲养 (PL) 中接受了蠕变饲料,其母猪是全饲 (FF) 或限制饲 (RES)。通过直肠拭子确定食者。在断奶 (d24) 时,将来自相同处理的四只仔猪分组 (n   =   36笔)。RES与FF相比,断奶时仔猪的生长速度降低了41g/d,增加了进食时间,爬行饲料摄入量和进食者的百分比。RES-PL的中度和良好食客比例最大。PL刺激了饲喂者的探索,并吸引了更多的仔猪到饲喂者而不是CON。断奶后,RES增加了探索行为,d0-5之间的采食量以及d0-2之间的生长,并减少了d0-2 (CON内),饮酒和咬耳之间的身体病变。到5%,PL在断奶后d15时增加了摄入行为,采食量和d0-15之间的生长以及BW。PL还降低了断奶后d15时水样腹泻的患病率,身体损伤的数量和仔猪的耳朵 (FF内) 和尾巴 (RES内) 损伤。治疗不影响FCR。总而言之,RES,尤其是PL (范围更广,时间更长) 导致的断奶相关问题较少。

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