不同替代比例肠膜蛋白粉对猪有效能及营养物质消化率的影响  

Effects of dried porcine soluble with different substitution ratios on nutrient digestibility of growing pigs

作　　者：谢飞 赵金标 黄强 刘明 张碧峰 陈亮[1] 张宏福[1] Xie Fei;Zhao Jinbiao;Huang Qiang;Liu Ming;Zhang Bifeng;Chen Liang;Zhang Hongfu

机构地区：[1]中国农业科学院北京畜牧兽医研究所动物营养学国家重点实验室,北京100193 [2]中国农业大学动物科技学院动物营养学国家重点实验室,北京100193

出　　处：《饲料工业》2020年第3期21-26,共6页Feed Industry

基　　金：国家自然科学基金[31702119];中国农业科学院科技创新工程[ASTIP-IAS07]

摘　　要：试验旨在通过套算法研究不同替代比例的肠膜蛋白粉对猪的有效能和营养物质表观消化率的影响。试验将24头平均体重(20.2±2.3)kg的健康去势公猪随机分为4组,每组6个重复。对照组饲喂玉米基础日粮,试验组分别是10%、20%和30%的肠膜蛋白粉替代基础日粮的试验日粮。试验期12 d,前7 d为预饲期,后5 d为粪尿收集期。结果显示,以干物质为基础,以10%、20%和30%肠膜蛋白粉替代基础日粮,试验得出的肠膜蛋白的表观代谢能分别为12.01、12.52 MJ/kg和12.10 MJ/kg(P<0.05);随着替代水平的升高,总能、有机物和中性洗涤纤维(P<0.05)的消化率降低,粗蛋白消化率先升高再降低。由此可见,生长猪对不同替代比例的各营养物质的表观消化率具有一定差异性,随着肠膜蛋白粉在基础日粮中替代比例的提高,肠膜蛋白粉的有效能值先升高再降低;当肠膜蛋白粉的比例是20%时,其原料的消化能和代谢能相对较高。This experiment was conducted to study the apparent digestible energy and nutrient apparent digestibility in dried porcine soluble(DPS)with different substitution ratios of growing pigs using the substitution method.Twenty four healthy castrated boars with an average weight of(20.2±2.3)kg were randomly divided into 4 groups with 6 replicates in each group.Pigs in the control group were fed the basal diet,and the others in the experimental groups were fed the experimental diets which used 10%,20%and 30%DPS substituted the basal diet,respectively.The test period was 12 days,the preliminary trial period were lasted for 7 days and the last 5 days was the fecal and urine collection period.The results showed that,on the basis of dry matter,the apparent metabolic energy of growing pigs for DPS in the 10%,20%and 30%replacement groups was 12.01,12.52 MJ/kg and 12.10 MJ/kg,respectively(P<0.05).With the increase of substitution level,the apparent digestibility of gross energy,organic matter and neutral detergent fiber decreased(P<0.05),and the digestibility of crude protein first increased and then decreased.In conclusion,it can be seen that the apparent digestibility of growing pigs to various nutrients with different replacement ratios was somewhat different.As the replacement ratio of DPS in the basic diet increase,the available energy of DPS first increased and then decreased.When the proportion of DPS was 20%,the digestive energy and metabolic energy of DPS were relatively higher.

关 键 词：猪 肠膜蛋白 替代比例 消化率 有效能 

分 类 号：S816.32[农业科学—饲料科学]