高温环境下泌乳母猪干喂与湿喂的评估

Evaluation of dry feeding and liquid feeding to lactating sows under high temperature environment.

作者信息

Hong J S, Jin S S, Jung S W, Fang L H, Kim Y Y

机构信息

School of Agricultural Biotechnology, Seoul National University, Seoul, Korea.

出版信息

J Anim Sci Technol. 2016 Oct 21;58:36. doi: 10.1186/s40781-016-0118-0. eCollection 2016.

DOI:10.1186/s40781-016-0118-0

PMID:27795834

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5075156/

Abstract

BACKGROUND

Liquid feeding system has been introduced to domestic swine farms, but negative cognition about liquid feeding system has been remained for feed waste decay related with poor management and microbial contamination. For these reasons, this study was conducted to evaluate the effects of feeding method in lactating sows.

METHODS

A total of 30 mixed-parity (average 4.13) lactating sows (Yorkshire × Landrace) with an initial BW of 218.8 ± 19.5kg was used in a 3 week trial. Sows were allotted to 1 of 2 treatments in a completely randomized design by their body weight, backfat thickness, parity and alive litter weight. One of treatments was dry feeding and the other was liquid feeding (water to feed ratio, 1:1). Experimental diets contained 3265 kcal ME/kg, 12.6 % CP, 5.76 % EE, 1.09 % total lysine, 0.25 % total methionine, as fed basis.

RESULTS

Dry feeding treatment had high body weight loss rather than liquid feeding treatment ( = 0.04). Dry feeding treatment had tendency to increase litter weight at 21d of lactation ( = 0.06) and litter weight gain ( = 0.04) during lactation period (0-3 week). Sows fed dry feeding method made milk containing high content of casein and total solid rather than sows fed liquid feeding method ( = 0.04). In addition, dry feeding treatment had tendency to higher content of milk fat, protein and solid not fat on 21d of lactation ( = 0.07). Sows fed dry feeding type also showed higher milk energy content in milk of 21d lactation ( = 0.05). Furthermore, liquid feeding treatment showed high occurrence in feed waste during lactation period ( < 0.01).

CONCLUSION

Dry feeding method was more suitable feeding method to lactating sows under high temperature environment like lactating barn.

摘要

背景

液体饲喂系统已引入国内猪场，但由于管理不善和微生物污染导致饲料浪费变质，人们对液体饲喂系统仍存在负面认知。基于这些原因，本研究旨在评估泌乳母猪饲喂方式的效果。

方法

选用30头经产（平均胎次4.13）泌乳母猪（约克夏×长白），初始体重218.8±19.5kg，进行为期3周的试验。根据母猪体重、背膘厚度、胎次和活仔重，采用完全随机设计将母猪分为2种处理方式之一。其中一种处理方式为干喂，另一种为湿喂（水与饲料比例为1:1）。试验日粮以饲喂状态计，含代谢能3265kcal/kg、粗蛋白12.6%、粗脂肪5.76%、总赖氨酸1.09%、总蛋氨酸0.25%。

结果

干喂处理组的体重损失高于湿喂处理组（P=0.04）。干喂处理组在泌乳21天时仔猪体重（P=0.06）和泌乳期（0 - 3周）仔猪体重增加（P=0.04）有增加趋势。采用干喂方式的母猪所产牛奶中酪蛋白和总固体含量高于采用湿喂方式的母猪（P=0.04）。此外，干喂处理组在泌乳21天时乳脂肪、蛋白质和非脂固体含量有更高的趋势（P=0.07）。采用干喂方式的母猪在泌乳21天的牛奶中能量含量也更高（P=0.05）。此外，湿喂处理组在泌乳期饲料浪费发生率较高（P<0.01）。