不同生产工艺和赖氨酸、蛋氨酸添加水平对饲料中晶体氨基酸在水中溶失率的影响研究  

Effects of different production processes and supplemental levels of Lys and Met on the dissolution loss of crystal amino acids in feed

作　　者：刘尚群 乔煦玮 李欣欣 李洪琴 李勇 熊安琪 梁玉树 何开蓉 刘匆 韩肖惠 LIU Shangqun;QIAO Xuwei;LI Xinxin;LI Hongqin;LI Yong;XIONG Anqi;LIANG Yushu;HE Kairong;LIU Cong;HAN Xiaohui(New Hope Liuhe Co.,Ltd.,Key Laboratory of Quality Control for Feed and Products of Livestock and Poultry,Ministry of Agriculture and Rural Affairs,Chengdu,Sichuan Province 610041,China;Sichuan New Hope Animal Husbandry Technology Co.Ltd.,Chengdu,Sichuan Province 610000,China;Chengdu Century Investment Co.Ltd.,Chengdu,Sichuan Province 610000,China;Shandong New Hope Liuhe Co.,Ltd.,Qingdao Key Laboratory of Animal Feed Safety,Qingdao,Shandong Province 266100,China)

机构地区：[1]新希望六和股份有限公司农业农村部饲料及畜禽产品质量安全控制重点实验室,四川成都610041 [2]四川新希望畜牧科技有限公司,四川成都610000 [3]成都世纪投资有限公司,四川成都610000 [4]山东新希望六和集团有限公司青岛市动物饲料安全重点实验室,山东青岛266100

出　　处：《中国饲料》2024年第11期116-120,共5页China Feed

基　　金：生物制造蛋白饲料营养价值及高效利用技术研究(2021YFD1301005)。

摘　　要：本试验旨在研究不同生产工艺(饲料料型、饲料粒径)和赖氨酸(Lys)、蛋氨酸(Met)添加水平对饲料中晶体氨基酸在水中溶失率的影响。研究结果表明:(1)饲料料型对虾料中晶体赖氨酸在水中的溶失率有影响。浸泡30 min后,膨化浮性虾料的晶体赖氨酸溶失率最高(73.85%),显著大于膨化沉性虾料(66.05%)和非膨化颗粒虾料(50.84%)。(2)在浸泡(5、15 min)前期,饲料粒径对膨化沉性蟹料中晶体赖氨酸的溶失率影响不显著;但浸泡30 min后,饲料中晶体赖氨酸的溶失率会随着饲料粒径的减小而显著提高。(3)Lys和Met添加水平对膨化料中晶体赖氨酸、晶体蛋氨酸在水中的溶失率没有影响。(4)饲料经过浸泡后,其晶体赖氨酸的溶失率显著低于晶体蛋氨酸溶失率。因此,在虾蟹饲料的实际生产过程中,配方中晶体氨基酸的添加量需考虑晶体氨基酸的溶失情况;同时,在符合动物摄食习性的条件下,选择生产粒径较大的非膨化颗粒饲料可能会明显降低晶体氨基酸在水中的溶失率,进而提高晶体氨基酸的利用率。The effects of different production processes(feed type,feed size)and supplemental levels of Lys and Met on the dissolution loss of crystal amino acids in feed were studied.The results showed that:(1)The feed types had an impact on the dissolution rate of crystal lysine in water.After soaking for 30 min,the crystal lysine dissolution rate of the extruded floating shrimp feed was the highest(73.85%),significantly higher than that of the extruded sinking shrimp feed(66.05%)and non-extruded pellet shrimp feed(50.84%).(2)In the early stage of soaking(5,15 min),the feed particle size had no significant effect on the dissolution rate of crystal lysine in the extruded sinking crab feed.After 30 min,the dissolution rate of crystalline lysine in the feed had significantly increase with the decrease of feed particle size.(3)The different levels of Lys and Met addition had not affect the dissolution rate of crystal lysine and crystal methionine in water of extruded floating feed.(4)The dissolution rate of crystalline lysine was significantly lower than that of crystalline methionine after soaking the feed.Therefore,in the actual production process of shrimp and crab feed,it was necessary to consider the dissolution of crystalline amino acids and the level addition of crystalline amino acids in the formula.At the same time,when the conditions comply with animal feeding habits,choosing produce non-extruded pellet feed with larger particle size may greatly reduce the dissolution rate of crystalline amino acids in water.

关 键 词：虾料 蟹料 溶失率 饲料料型 饲料粒径 添加水平 

分 类 号：S816.7[农业科学—饲料科学]