不同形式米渣蛋白对断奶鼠氮平衡和能量代谢的影响  

作　　者：李湘[1] 彭地纬[1] 李薇[1] 熊华[1] 朱立涛[2] 杨开武 

机构地区：[1]南昌大学食品科学与技术国家重点实验室 [2]湖南农业大学动物营养研究所 [3]溧阳罗地亚稀土新材料有限公司

出　　处：《中国饲料》2010年第12期13-16,共4页China Feed

基　　金："十一五"国家科技支撑计划项目(2006BAD27B00);食品科学与技术国家重点实验室目标导向资助项目(SKLF-MB-200809);食品科学与技术国家重点实验室自由探索资助项目(SKLF-TS-200818)

摘　　要：选用20只体重相近的28日龄断奶Sprague-Dawley(SD)鼠,以豆粕蛋白(SB)为对照,采用4×4拉丁方设计对米渣(RD)、米渣蛋白酶解物(RD-H)、壁材型米渣蛋白酶解物(MF)进行28d的代谢试验。结果表明:米渣蛋白较大豆蛋白能显著提高氮沉积、促进脂肪的消化吸收(P<0.01),SB、RD、RD-H、MF各组氮沉积分别为0.538、0.590、0.605、0.625g/d;米渣蛋白的体外低度预消化、脂肪的体外预乳化对其在试验鼠体内的消化吸收无影响(P>0.05)。20 Sprague-Dawley （SD） rats of 28 days old were selected to conduct a 28-day metabolic test with 4×4 Latin square design for the four experiment diets with different protein sources, of which three supplied by rice protein in presences of rice dregs（RD）,RD protein hydrolysate（RD-H） or RD-H in microencapsulated mixed-oil powder（MF）,and one by soybean meal （SB） as a control. Results showed that the rice protein could significantly increase nitrogen retention and improve fat digestion as compared to soybean protein（P 〈 0.01）,and the daily nitrogen retentions in control,RD,RD- H and MF groups were 0.538,0.590,0.605 g/d and 0.625 g/d,respectively.Either limited proteolysis of RD or pre-emulsification of dietary oil（s）didn’t significantly affect their digestibilities in SD rats（P 〉 0.05）.

关 键 词：米渣蛋白酶解物 壁材型米渣蛋白酶解物 氮沉积 能量代谢 

分 类 号：S816[农业科学—饲料科学]