de Rodas B Z, Sohn K S, Maxwell C V, Spicer L J
Department of Animal Science, Oklahoma State University, Stillwater 74078, USA.
J Anim Sci. 1995 Dec;73(12):3657-65. doi: 10.2527/1995.73123657x.
Three experiments were conducted to evaluate spray-dried porcine plasma (SDPP) protein in diets for early weaned pigs. In Exp. 1, 144 weanling pigs (24 +/- 4 d of age) were used to determine the effects of replacing dried skim milk (DSM) with either 4% SDPP or 2.75% spray-dried blood meal (SDBM) in Phase 1 diets (d 0 to 14 postweaning). During 0 to 14, pigs fed SDPP or SDBM had higher ADG (P < .05) and ADFI (P < .1) than those fed DSM. Pigs fed SDPP had greater (P < .05) ADG and ADFI (P < .1) than those fed SDBM. In Exp. 2, performance was similar in pigs fed two plasma protein sources (AP-820 and MP-722). In Exp.3, 18 weanling pigs (19 to 20 d of age) were used to determine the effects of feeding high levels of SDPP on performance and on plasma IGF-I, growth hormone, insulin, and glucose concentrations. Pigs were fed either a control diet containing 21.5% soybean meal (SBM) or a diet containing 14% SDPP. Treatments were applied for 14 d (Phase 1). During d 0 to 14, pigs fed a SDPP had a greater ADG and ADFI (P < .05) than pigs fed SBM. Replacing SBM with SDPP did not affect plasma IGF-I and glucose concentrations. However, SDPP replacement increased (P < .06) plasma growth hormone concentrations. Insulin levels were greater (P < .06) in pigs fed SBM than in those fed SDPP. These results indicate that SDPP and SDBM are effective alternatives to DSM or SBM in Phase 1 diets and the two plasma protein sources will produce similar performance. The factor(s) responsible for this improved performance does not seem to involve a change in plasma IGF-I.
进行了三项试验以评估早期断奶仔猪日粮中喷雾干燥猪血浆（SDPP）蛋白的效果。在试验1中，选用144头断奶仔猪（24±4日龄），以确定在第1阶段日粮（断奶后0至14天）中用4% SDPP或2.75%喷雾干燥血粉（SDBM）替代脱脂奶粉（DSM）的效果。在0至14天期间，饲喂SDPP或SDBM的仔猪比饲喂DSM的仔猪具有更高的平均日增重（ADG，P<0.05）和平均日采食量（ADFI，P<0.1）。饲喂SDPP的仔猪比饲喂SDBM的仔猪具有更高（P<0.05）的ADG和ADFI（P<0.1）。在试验2中，饲喂两种血浆蛋白来源（AP - 820和MP - 722）的仔猪性能相似。在试验3中，选用18头断奶仔猪（19至20日龄），以确定饲喂高水平SDPP对性能以及血浆胰岛素样生长因子 - I（IGF - I）、生长激素、胰岛素和葡萄糖浓度的影响。给仔猪饲喂含21.5%豆粕（SBM）的对照日粮或含14% SDPP的日粮。处理持续14天（第1阶段）。在0至天期间，饲喂SDPP的仔猪比饲喂SBM的仔猪具有更高的ADG和ADFI（P<0.05）。用SDPP替代SBM不影响血浆IGF - I和葡萄糖浓度。然而，SDPP替代增加了（P<0.06）血浆生长激素浓度。饲喂SBM的仔猪胰岛素水平比饲喂SDPP的仔猪更高（P<0.06）。这些结果表明，在第1阶段日粮中，SDPP和SDBM是DSM或SBM的有效替代品，并且这两种血浆蛋白来源将产生相似的性能。导致这种性能改善的因素似乎不涉及血浆IGF - I的变化。
