乳清蛋白产品和喷雾干燥动物血浆对断奶仔猪生长性能的影响。

Effects of a whey protein product and spray-dried animal plasma on growth performance of weanling pigs.

作者信息

Grinstead G S, Goodband R D, Dritz S S, Tokach M D, Nelssen J L, Woodworth J C, Molitor M

机构信息

Department of Animal Sciences and Industry, Kansas State University, Manhattan 66560-0201, USA.

出版信息

J Anim Sci. 2000 Mar;78(3):647-57. doi: 10.2527/2000.783647x.

DOI:10.2527/2000.783647x

PMID:10764072

Abstract

Five experiments were conducted to evaluate the effects of a high-protein, whey protein product (WPP; 73% CP, 6.8% lysine, 12.8% fat, and 5% lactose) and spray-dried animal plasma (SDAP) on growth performance of weanling pigs. In all experiments, pigs were fed experimental diets from d 0 to 14 after weaning in a pelleted form and then a common diet in meal form for the remainder of the experiment. Dietary treatments were established by substituting WPP or SDAP for dried skim milk (Exp. 1) or soybean meal (Exp. 2, 3, 4, and 5) in the control diet. In Exp. 1, we maintained a constant level of lactose in all diets by adjusting the amount of added crystalline lactose. The amount of lactose in diets used in Exp. 2 through 5 varied slightly by the addition of WPP. In Exp. 1 and 2, 180 weanling pigs (initially 5.8 kg and 19 +/- 1 d of age or 5.5 kg and 17 +/- 1 d of age, respectively) were used. Treatment diets contained SDAP (2.5 and 5%) or WPP (2.7 and 5.4% in Exp.1, and 2.5 or 5.0% in Exp. 2). In Exp. 1, from d 0 to 7 after weaning, ADG and ADFI increased with increasing SDAP (linear, P < .01). No other treatment effects were observed during the d 0 to 14 period. In Exp. 2, from d 0 to 14 after weaning, ADG and G:F increased (linear, P < .04) with increasing SDAP or WWP. In Exp. 3, 305 weanling pigs (initially 4.1 kg and 12 +/- 1 d of age) were used. The control diet contained 2.5% SDAP. The experimental diets were similar to the control diet but contained an additional 2.5 or 5.0% SDAP or 2.5 or 5.0% WPP. From d 0 to 14 after weaning, ADG, ADFI, and G:F increased (quadratic, P < .05) with increasing SDAP up to 5.0%. Increasing WPP increased ADG (quadratic, P < .07) and ADFI (linear, P < .09). In Exp. 4 and 5, 329 and 756 weanling pigs (initially 4.1 kg and 12 +/- 1 d of age and 5.2 kg and 18 +/- 1 d of age, respectively) were fed diets in which WPP was substituted for 0, 25, 50, 75, and 100% (Exp. 4) or 0, 50, and 100% (Exp. 5) of the SDAP in the control diet. In Exp. 4 and 5, from d 0 to 14 after weaning, pigs fed a 1:1 blend of each protein source had better ADG (quadratic, P < .04) than those only fed SDAP. In conclusion, WPP can be used in combination with or as a total replacement for SDAP in diets for weanling pigs without reducing performance.

摘要

进行了五项试验，以评估高蛋白乳清蛋白产品（WPP；粗蛋白含量73%、赖氨酸含量6.8%、脂肪含量12.8%、乳糖含量5%）和喷雾干燥动物血浆（SDAP）对断奶仔猪生长性能的影响。在所有试验中，仔猪在断奶后第0至14天饲喂颗粒状试验日粮，然后在试验剩余时间饲喂粉状普通日粮。通过在对照日粮中用WPP或SDAP替代脱脂奶粉（试验1）或豆粕（试验2、3、4和5）来设置日粮处理。在试验1中，通过调整添加的结晶乳糖量，使所有日粮中的乳糖水平保持恒定。试验2至5中使用的日粮中，由于添加了WPP，乳糖量略有变化。在试验1和2中，分别使用了180头断奶仔猪（初始体重分别为5.8 kg、19±1日龄或5.5 kg、17±1日龄）。处理日粮含有SDAP（2.5%和5%）或WPP（试验1中为2.7%和5.4%，试验2中为2.5%或5.0%）。在试验1中，断奶后第0至7天，随着SDAP添加量增加，平均日增重（ADG）和平均日采食量（ADFI）增加（线性关系，P<0.01）。在第0至14天期间未观察到其他处理效应。在试验2中，断奶后第0至14天，随着SDAP或WWP添加量增加，ADG和料重比（G:F）增加（线性关系，P<0.04）。在试验3中，使用了305头断奶仔猪（初始体重4.1 kg、12±1日龄）。对照日粮含有2.5% SDAP。试验日粮与对照日粮相似，但额外含有2.5%或5.0% SDAP或2.5%或5.0% WPP。断奶后第0至14天，随着SDAP添加量增加至5.0%，ADG、ADFI和G:F增加（二次曲线关系，P<0.05）。WPP添加量增加使ADG增加（二次曲线关系，P<0.07），ADFI增加（线性关系，P<0.09）。在试验4和5中，分别给329头和756头断奶仔猪（初始体重分别为4.1 kg、12±1日龄和5.2 kg、18±1日龄）饲喂日粮，其中对照日粮中的SDAP被WPP替代0%、25%、50%、75%和100%（试验4）或0%、50%和100%（试验5）。在试验4和5中，断奶后第0至14天，饲喂每种蛋白质来源1:1混合日粮的仔猪比仅饲喂SDAP的仔猪具有更好的ADG（二次曲线关系，P<0.04）。总之，WPP可与SDAP联合使用或完全替代SDAP用于断奶仔猪日粮，而不降低生产性能。