Effect of Complete Feed Feeding Level and Morning Glory on Growing Pig Performance

Samorn Sreng, S. Keo, J. DeRouchey, M. Tokach, L. Hok, J. Vipham
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Abstract

A total of 60 castrated male pigs (Yorkshire x Duroc, initially 17.36 kg) were used in a 42-day trial to evaluate the effect of complete feed feeding level and morning glory on growth performance of growing pigs. Pigs were allotted to pens and randomly assigned to three dietary treatments: A) completed feed fed ad libitum; B) complete feed fed at 75% of intake of treatment A, and C) treatment B with ad libitum availability of morning glory. The design was a completely randomized design (CRD) with five pens (replications) of each treatment with four pigs per pen. Average daily feed intake (dry matter basis) was higher (P ad libitum was greater (P ad libitum or pigs restricted fed but provided morning glory (1.63, 1.56 and 1.65, respectively). For economics, feeding complete feed ad libitum improved (P ad libitum resulted in the greatest growth rate and profitability. Offering morning glory (Ipomoea. aquatica) to pigs fed a restricted level of complete feed did improve final body weight, but the extra cost of feeding morning glory offset this advantage resulting in similar profitability on an income over feed cost basis.
全料饲喂水平和牵牛花对生长猪生产性能的影响
选用60头阉割公猪(约克郡×杜洛克,初始体重17.36 kg),进行为期42 d的试验,研究全料饲喂水平和牵牛花对生长猪生长性能的影响。将猪分配到猪圈内,随机分为3种饲粮处理:A)完全采食;B)按采食量的75%饲喂全饲料,C)处理B,任意添加牵牛花。试验采用完全随机设计(CRD),每个处理5个猪圈(重复),每个猪圈4头猪。平均日采食量(干物质基础)较高(自由采磷高于自由采磷或限饲但提供牵牛花的猪,分别为1.63、1.56和1.65)。从经济角度看,自由饲喂全料提高了P的自由利用率,其增长率和盈利能力最大。提供牵牛花。饲喂有限水平的全饲料确实改善了猪的最终体重,但饲养牵牛花的额外成本抵消了这一优势,导致收入与饲料成本基础上的盈利能力相似。
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