Coffey R D, Cromwell G L
Department of Animal Sciences, University of Kentucky, Lexington 40546, USA.
J Anim Sci. 1995 Sep;73(9):2532-9. doi: 10.2527/1995.7392532x.
Four 28-d experiments involving 360 weanling pigs were conducted to investigate the effects of including spray-dried porcine plasma (SDPP) in diets from d 0 to 14 after weaning followed by feeding a common diet from d 14 to d 28. In Exp. 1, 80 weanling pigs (4.9 kg BW, 17 +/- 1 d of age) were used to determine the effects of substituting 0, 3, 6, 9, or 12% SDPP for dried skim milk (DSM) and L-lysine.HCl. Growth rate and feed intakes from d 0 to 14 and d 0 to 28 were not affected by increasing levels of SDPP, but feed/gain from d 0 to 14 increased linearly (P < .001) as the level of SDPP increased. In Exp. 2 and 3, 160 pigs (80 pigs in each trial; 5.4 kg BW, 18 +/- 2 d of age) were used to determine the effect of nursery environment on the performance of pigs fed a diet containing 20% DSM or 8.3% SDPP. Pigs were housed in either an off-site, environmental chamber in newly purchased pens (experimental nursery) or a more typical, on-farm, conventional nursery. Pigs in the experimental nursery performed superior to the pigs in the conventional nursery from d 0 to 14 and from d 0 to 28 (P < .001). Growth rate and feed intake were enhanced (P < .05) by feeding SDPP to pigs in the conventional nursery, but the responses to SDPP were of considerably less magnitude in pigs housed in the experimental nursery, resulting in environment x diet interactions (P < .05).(ABSTRACT TRUNCATED AT 250 WORDS)
进行了四项为期28天的试验，涉及360头断奶仔猪，以研究断奶后第0天至第14天的日粮中添加喷雾干燥猪血浆（SDPP），随后从第14天至第28天饲喂普通日粮的效果。在试验1中，选用80头断奶仔猪（体重4.9 kg，17±1日龄），以确定用0%、3%、6%、9%或12%的SDPP替代脱脂奶粉（DSM）和L-盐酸赖氨酸的效果。第0天至第14天以及第0天至第28天的生长速度和采食量不受SDPP水平增加的影响，但随着SDPP水平的增加，第0天至第14天的料重比呈线性增加（P<0.001）。在试验2和试验3中，选用160头仔猪（每个试验80头；体重5.4 kg，18±2日龄），以确定保育环境对饲喂含20% DSM或8.3% SDPP日粮的仔猪生产性能的影响。仔猪被饲养在新购置猪舍的场外环境舱（试验保育舍）或更典型的场内传统保育舍。从第0天至第14天以及第0天至第28天，试验保育舍的仔猪表现优于传统保育舍的仔猪（P<0.001）。在传统保育舍中，给仔猪饲喂SDPP可提高生长速度和采食量（P<0.05），但在试验保育舍中饲养的仔猪对SDPP的反应幅度要小得多，导致环境×日粮交互作用（P<0.05）。（摘要截短至250字）
