日粮赖氨酸缺乏对仔猪内脏器官及血液生化指标的影响  

The effects of lacked L-lysine diets on internal organs and serum biochemical parameters for piglets

作　　者：马琴琴[1,2] 何流琴[1] 伍力[1,2] 周锡红[3] 李铁军[1] 印遇龙[1] 

机构地区：[1]中国科学院亚热带农业生态研究所,中国科学院亚热带农业生态过程重点实验室,湖南省畜禽健康养殖工程技术研究中心,农业部中南动物营养与饲料科学观测实验站,湖南长沙410125 [2]中国科学院大学,北京100039 [3]浙江大学动物科技学院,浙江杭州310058

出　　处：《农业现代化研究》2015年第1期149-153,共5页Research of Agricultural Modernization

基　　金：国家重点基础研究发展计划课题(2013CB127301);长沙市科技计划重点项目(K1307007-21)

摘　　要：本研究探讨了日粮缺乏赖氨酸对断奶仔猪内脏器官及血液生化指标的影响。试验选用平均体重为6.53±0.39 kg的28日龄三元(杜×长×大)杂交断奶仔猪21头,随机分为3组,每组7头,单栏饲养,分别饲喂玉米醇溶蛋白半纯合日粮,玉米醇溶蛋白+1.35%赖氨酸半纯合日粮和无氮日粮,试验期为21天。分别测定断奶仔猪内脏器官指数和血液各生化指标。结果表明,各日粮组内脏器官指数均无显著差异(P>0.05)。试验各组间血清谷草转氨酶(AST)、乳酸脱氢酶(LDH)、肌酸激酶(CK)、低密度脂蛋白(LDL)、血糖(GLU)度差异显著(P<0.05),无氮日粮组AST、LDH、LDL浓度显著增高(P<0.05),分别为81.73μ/L、600.36μ/L、2122.35 mmol/L;而玉米醇溶蛋白+赖氨酸组CK活性最高,达694.89μ/L,GLU最低,仅3.40 mmol/L。同时各组间血清免疫球蛋白(Ig M)和尿素氮(UREA)存在极显著差异(P<0.01)。日粮缺乏赖氨酸可导致仔猪血液相关酶(AST、LDH、CK)活性受到不同程度的影响,抗应激能力下降;使仔猪相关免疫指标(Ig G、LDL)受到影响,导致抗病能力下降;同时还影响到了血糖和血清尿素氮水平,致使血糖升高,氮利用效率降低,但不影响内脏器官指数。This study was conducted to determine the effects of diets without L-lysine on internal organs and serum biochemical parameters for piglets. 21 three-way cross piglets were weaned at the age of 28 d and the bodyweight of about 6.53± 0.39 kg,then they were randomly divided into three groups and fed zein diets （diets lacked lysine）, zein diets supplemented with L-lysine and N-flee diets respectively, the experiment lasted for 21 days. The effects of diets without L-lysine on internal organs and serum biochemical parameter were observed. Different test diets did not cause any significant （P 〉0.05） change in the internal organ index of weaned piglets. Serum concentration of AST, LDH, CK, LDL, GLU had significant （P 〈0.05） differences among different test diets. Serum concentration ofAST, LDH, LDL in N-flee diets group were increased significantly （P 〈0.05）, the numbers were 81.73μ/L, 600.36 μ/L and 2122.35 mmol/L respectively, while serum CK in zein＋lysine group was the highest, 694.89 μ/L, and the serum GLU was the lowest, 3.40 mmol/L, among the three groups. Serum IgM, UREA in different diet groups showed extremely significant difference （P 〈0.01）. Daily diets lack of lysine could affect blood related enzyme （AST, LDH and CK） activity to some extent, which lead to anti-stress ability decreased. A piglet diet lack of lysine also affected immune index （IgG,LDL）, resulting in a decline in resistance. At the same time, the blood sugar and serum urea nitrogen level were also influenced, caused blood sugar increase, nitrogen use efficiency was reduced, but did not affect the internal organs index.

关 键 词：赖氨酸 断奶仔猪 血液生化指标 内脏器官指数 

分 类 号：S828[农业科学—畜牧学]