Management strategies to improve the performance of low birth weight pigs to weaning and their long-term consequences1,2

垃圾箱 断奶 动物科学 哺乳期 生物 出生体重 作文(语言) 怀孕 语言学 哲学 农学 遗传学
作者
Simon Douglas,Sandra Edwards,I. Kyriazakis
出处
期刊:Journal of Animal Science [Oxford University Press]
卷期号:92 (5): 2280-2288 被引量:66
标识
DOI:10.2527/jas.2013-7388
摘要

Performance of pigs from birth to slaughter is a result of a complex interaction of factors, with the early stages of a pig's life likely to affect lifetime performance. During the preweaning stage, piglets are reliant on the sow for nutrition, and sibling competition is likely to affect growth, in particular for low birth weight (LBiW) piglets. The objective of the experiment was to determine the effect of litter composition (littermate weight) and milk supplementation during lactation on the performance of LBiW pigs to weaning and the long-term consequences of treatment to slaughter. The experiment was a 2 × 2 factorial with littermate weight (normal or LBiW) and provision of supplementary milk from d 1 to 28 (yes or no) as factors. A total of 265 piglets were selected within 24 h of birth and cross-fostered to create 2 litter types (LOW = LBiW pigs [≤1.25 kg] only and MX = both LBiW and normal birth weight pigs [1.6 to 2.0 kg]); half of the litters within a type were supplemented with milk and the other half were not. The behavior of litters given milk was recorded to identify milk consumption patterns. Piglets were weaned at d 28 and kept in their litters until d 70 and then subsequently housed in mixed groups until slaughter. No difference was observed at any stage in the ADG of pigs given access to supplementary milk or not (P > 0.05) nor was there any significant interaction between milk provision and litter composition (P > 0.05). However, LOW litters drank significantly more supplementary milk than MX litters (P < 0.001). There was a significant effect of litter type on ADG from d 14 to 28, with LBiW pigs in LOW litters performing better than those in MX litters (0.252 versus 0.217 kg/d; P < 0.05). At weaning, LBiW piglets in LOW litters weighed over 500 g more than those in MX litters (P < 0.05). In MX litters there was a significant interaction between birth weight and supplementary milk on the CV of BW from d 14 to slaughter (P < 0.05). In conclusion, grouping LBiW piglets with similar sized littermates preweaning can improve preweaning performance by reducing competition from heavier littermates; however, this advantage does not persist after weaning. Although supplementary milk does not improve LBiW pig performance before or after weaning, it affects their drinking behavior and can reduce the variation in the BW of LBiW piglets in mixed litters to slaughter.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Anan应助科研通管家采纳,获得20
刚刚
刚刚
Jennifer应助科研通管家采纳,获得10
刚刚
Anan应助科研通管家采纳,获得20
刚刚
CodeCraft应助科研通管家采纳,获得10
刚刚
刚刚
SJT完成签到,获得积分10
1秒前
牙瓜发布了新的文献求助10
1秒前
Yvan完成签到,获得积分10
2秒前
2秒前
jlhfg完成签到 ,获得积分10
2秒前
和谐鼠标关注了科研通微信公众号
2秒前
zsqqqqq完成签到,获得积分10
3秒前
3秒前
3秒前
3秒前
小鱼爱吃肉应助baolong采纳,获得10
4秒前
乐正一兰完成签到,获得积分10
4秒前
盏茶轻抿完成签到,获得积分10
4秒前
西鹿发布了新的文献求助10
4秒前
sss关闭了sss文献求助
5秒前
微风完成签到,获得积分10
5秒前
yockoo发布了新的文献求助10
6秒前
ZX0501发布了新的文献求助30
7秒前
微风发布了新的文献求助10
8秒前
星辰大海应助Solarenergy采纳,获得10
9秒前
诸雨珍发布了新的文献求助10
9秒前
士艳完成签到,获得积分10
10秒前
Orange应助零度采纳,获得10
10秒前
misa完成签到 ,获得积分10
11秒前
乐观的海发布了新的文献求助10
11秒前
Gang完成签到,获得积分10
12秒前
18822596238完成签到,获得积分10
15秒前
zhang完成签到,获得积分20
15秒前
limz发布了新的文献求助30
15秒前
怕黑的音响完成签到 ,获得积分10
16秒前
16秒前
李健的小迷弟应助和成采纳,获得10
18秒前
CARL发布了新的文献求助10
20秒前
花开米兰城完成签到,获得积分10
20秒前
高分求助中
进口的时尚——14世纪东方丝绸与意大利艺术 Imported Fashion:Oriental Silks and Italian Arts in the 14th Century 800
Zeitschrift für Orient-Archäologie 500
The Collected Works of Jeremy Bentham: Rights, Representation, and Reform: Nonsense upon Stilts and Other Writings on the French Revolution 320
Equality: What It Means and Why It Matters 300
A new Species and a key to Indian species of Heirodula Burmeister (Mantodea: Mantidae) 300
Apply error vector measurements in communications design 300
Synchrotron X-Ray Methods in Clay Science 300
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 细胞生物学 免疫学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3347169
求助须知:如何正确求助?哪些是违规求助? 2973639
关于积分的说明 8660443
捐赠科研通 2654163
什么是DOI,文献DOI怎么找? 1453508
科研通“疑难数据库(出版商)”最低求助积分说明 672930
邀请新用户注册赠送积分活动 663015