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

:深饲料的摄入量是可变的,可能部分由体内平衡和探索性驱动。我们研究了母乳喂养限制和“游戏饲养者”对仔猪行为和性能的影响。 37窝仔猪采用常规饲喂(CON)或饲喂饲喂(PL)进行creep饲,其母猪为全喂(FF)或受限制喂饲(RES)。通过直肠拭子确定食者。在断奶(d24)时,将来自同一处理的四只仔猪分组(n = 36头)。 RES使仔猪的生长速度提高了41μg/ d,并增加了断奶和断奶时的进食时间,creep饲料的采食量以及进食者的百分比。 RES-PL的中度和良好饮食者比例最高。 PL刺激了饲养者的探索,并且比CON吸引了更多的仔猪到饲养者中。断奶后,RES增加了探索行为,在d0-5之间采食,在d0-2之间生长,在d0-2之间(在CON内),饮酒和咬人减少了身体病变。在断奶后第15天时,PL在d0-15之间增加了摄食行为,采食量和生长,在d15时体重增加了5%。在断奶后第15天,PL还降低了水样腹泻的发生率,身体损伤的数量以及有耳朵(FF内)和尾巴(RES内)损伤的仔猪的患病率。治疗不影响FCR。总而言之,RES,尤其是PL(范围更广且时间更长)导致的断奶相关问题更少。

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