Universidade Federal Rural do Amazonas, Campus Paragominas, PA-256, s/n, Nova Conquista, 68627-451 Paragominas, PA, Brazil.
Purdue University, Animal Science Department, 270 South Russell street, West Lafayette, 47907-204, Purdue, IN, USA.
An Acad Bras Cienc. 2021 May 10;93(3):e20200248. doi: 10.1590/0001-3765202120200248. eCollection 2021.
The use of creep feeding for preweaning piglets is important to improve the performance of the piglets. The objective of this experiment was evaluate the effect of using or altering the position of piglet's creep feeder during lactation on piglet's performance and on behavior of piglets and sows kept in a hot climate environment. Forty-five sows and their litters at 10 days of lactation were randomly distributed into three treatments: front feeder (FF) - near the side of the sow's head; back feeder (BF) - near the side of the rump of the sow; and no feeder (NF). All piglets were weighed individually to evaluate the average weight, weight gain and coefficient of variation of the weight. Behavior assessments of the piglets and sows were recorded in 3 period. At 15 and 21 d, piglets of the FF treatment were heavier (P ≤ 0.0001) than piglets of the other treatments. At 10-21d piglets of FF treatment had 76.2% less belly nosing behavior than the NF piglets (P=0.015). The treatments had no impact on behavior of the sows. The creep feeders positioned in the front of the farrowing crate increased piglet growth rate and decreased frequency of belly nosing behavior.
在哺乳期使用逐渐增加饲料投喂量的方式来饲养仔猪对于提高仔猪的性能非常重要。本试验旨在评估在炎热气候环境下,在哺乳期改变或改变仔猪自动采食器位置对仔猪性能以及母猪和仔猪行为的影响。在哺乳期第 10 天,45 头母猪及其仔猪被随机分为 3 个处理组:前饲位(FF)-靠近母猪头部的一侧;后饲位(BF)-靠近母猪臀部的一侧;无饲位(NF)。所有仔猪均单独称重,以评估平均体重、体重增加和体重变异系数。在 3 个时间段记录了仔猪和母猪的行为评估。在 15 和 21 日龄时,FF 组的仔猪比其他处理组的仔猪重(P≤0.0001)。在 10-21 日龄时,FF 组仔猪的腹部触地行为比 NF 组仔猪少 76.2%(P=0.015)。处理组对母猪的行为没有影响。产仔箱前部的自动采食器增加了仔猪的生长速度,并减少了腹部触地行为的发生频率。