Kats L J, Nelssen J L, Tokach M D, Goodband R D, Weeden T L, Dritz S S, Hansen J A, Friesen K G
Department of Animal Sciences and Industry, Kansas State University, Manhattan 66506-0201.
J Anim Sci. 1994 Nov;72(11):2860-9. doi: 10.2527/1994.72112860x.
A total of 1,956 weanling pigs were used in five experiments to evaluate spray-dried blood meal (SDBM) in starter pig diets. In Exp. 1, 432 weanling pigs (initially 6.9 kg BW and 21 d of age) were used to evaluate different protein sources in the d 7 to 28 postweaning diet. Pigs were fed a control diet containing 5% select menhaden fish meal or diets with 3.88% spray-dried porcine plasma, 2.49% SDBM (porcine), 5.74% soy protein concentrate, 5.74% moist extruded soy protein concentrate, or L-lysine.HCl and DL-methionine replacing select menhaden fish meal on an ideal protein basis. Pigs fed diets containing the spray-dried blood products had higher (P < .06) mean ADG than pigs fed the other protein sources. In Exp. 2, 744 weanling pigs (initially 5.8 kg BW and 21 d of age) were used to determine the effects of 0, 1, 2, 3, 4, or 5% SDBM (bovine) in the d 7 to 28 postweaning diet. Pigs fed increasing SDBM had greater (quadratic, P < .01) ADG and improved gain:feed ratio (G/F). Inflection point analysis projected optimum ADG and G/F at 1.9% SDBM. In Exp. 3, 216 weanling pigs (initially 10.9 kg BW and 42 d of age) were used to determine the effects of 0, .5, 1, 1.5, 2, and 2.5% SDBM (bovine) in the d 21 to 42 postweaning diet. Pigs fed increasing SDBM had decreased (linear, P < .05) ADG and G/F. In Exp. 4 and 5, 144 and 180 weanling pigs (initially 5.3 and 6.2 kg BW and 24 and 21 d of age, respectively) were used to evaluate either 2.5% spray-dried porcine, spray-dried bovine, or flash-dried bovine blood meal (Exp. 4) or 2.5% spray-dried bovine or spray-dried avian blood meal (Exp. 5). Pigs fed diets containing the spray-dried blood meals had improved ADG and G/F (P < .01) compared with pigs fed flash-dried blood meal. However, no differences (P > .10) were observed among treatments when pigs were fed spray-dried blood meals from different species. We conclude that spray-dried bovine, porcine, and avian blood meal are effective protein sources in starter pig diets (d 7 to 28 postweaning). However, SDBM is not necessary in the diets of older pigs (d 21 to 42 postweaning) for maximum growth performance.
总共1956头断奶仔猪用于五项试验，以评估断奶仔猪日粮中的喷雾干燥血粉（SDBM）。在试验1中，432头断奶仔猪（初始体重6.9千克，21日龄）用于评估断奶后第7至28天日粮中的不同蛋白质来源。给仔猪饲喂含5%优质鲱鱼粉的对照日粮，或含3.88%喷雾干燥猪血浆、2.49% SDBM（猪源）、5.74%大豆浓缩蛋白、5.74%湿挤压大豆浓缩蛋白，或基于理想蛋白基础用L-盐酸赖氨酸和DL-蛋氨酸替代优质鲱鱼粉的日粮。饲喂含喷雾干燥血液制品日粮的仔猪平均日增重（ADG）高于饲喂其他蛋白质来源日粮的仔猪（P < 0.06）。在试验2中，744头断奶仔猪（初始体重5.8千克，21日龄）用于确定断奶后第7至28天日粮中0、1、2、3、4或5% SDBM（牛源）的影响。饲喂SDBM含量增加的仔猪ADG更高（二次曲线，P < 0.01），且增重：饲料比（G/F）得到改善。拐点分析预测SDBM含量为1.9%时ADG和G/F最佳。在试验3中，216头断奶仔猪（初始体重10.9千克，42日龄）用于确定断奶后第21至42天日粮中0、0.5、1、1.5、2和2.5% SDBM（牛源）的影响。饲喂SDBM含量增加的仔猪ADG和G/F降低（线性，P < 0.05）。在试验4和5中，144头和180头断奶仔猪（初始体重分别为5.3千克和6.2千克，24日龄和21日龄）用于评估2.5%喷雾干燥猪血粉、喷雾干燥牛血粉或闪蒸干燥牛血粉（试验4），或2.5%喷雾干燥牛血粉或喷雾干燥鸡血粉（试验5）。与饲喂闪蒸干燥血粉的仔猪相比，饲喂含喷雾干燥血粉日粮的仔猪ADG和G/F得到改善（P < 0.01）。然而，当给仔猪饲喂不同物种的喷雾干燥血粉时，各处理间未观察到差异（P > 0.10）。我们得出结论，喷雾干燥牛血粉、猪血粉和鸡血粉是断奶仔猪日粮（断奶后第7至28天）中有效的蛋白质来源。然而，对于最大生长性能而言，SDBM在大龄仔猪日粮（断奶后第21至42天）中并非必需。
