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当前位置: 首页 > 文章 > 不同饲粮赖氨酸水平对二元母猪生长性能和血清指标的影响 福建农业学报 2017 (10) 1057-1061
Position: Home > Articles > Effects of Lysine Content in Low Protein Fodder on Growth and Serum Biochemistry of Two-line Crossbred Gilts Fujian Journal of Agricultural Sciences 2017 (10) 1057-1061

不同饲粮赖氨酸水平对二元母猪生长性能和血清指标的影响

作  者：
方桂友;刘景;缪伏荣;叶鼎承;董志岩
关键词：
可消化赖氨酸;二元母猪;生长性能;血清指标;低蛋白质饲粮
摘  要：
研究不同饲粮赖氨酸水平对70~100kg阶段二元母猪生长性能、血清指标的影响。选用96头体况相似、平均体重为(69.01±4.43)kg的长大二元母猪,随机分成4个组,每组4个重复,根据饲料原料可消化赖氨酸(DLys)和理想蛋白质氨基酸平衡模式(IAAP)配制低蛋白质试验饲粮(等能、等氨基酸平衡模式),设置饲粮DLys水平分别为0.61%(Ⅰ组)、0.66%(Ⅱ组)、0.71%(Ⅲ组)、0.76%(Ⅳ组)。结果表明,Ⅱ组平均日增重(ADG)最高(908.33g),料重比(F/G)最低(2.77);Ⅱ组血清尿素氮(UN)浓度〗显著低于Ⅰ组和Ⅳ组(P<0.05),与Ⅲ组差异不显著(P>0.05),血清胰岛素(INS)、胰岛素样生长因子-I(IGF-I)浓度随饲粮DLys水平的升高呈现先升高后降低的变化趋势(P>0.05);血清赖氨酸(Lys)和苏氨酸(Thr)质量浓度Ⅳ组显著高于Ⅰ组(P<0.05),其他血清氨基酸质量浓度呈现随饲粮DLys水平的升高先降低后升高的变化趋势(P>0.05),以Ⅱ组较低。综合生长性能和血清指标,在本试验条件下,二元母猪70~100kg阶段饲粮DLys适宜日摄入量为16.57g·d~(-1),即饲粮DLys水平为0.66%,能获得较好的生长性能。
译  名：
Effects of Lysine Content in Low Protein Fodder on Growth and Serum Biochemistry of Two-line Crossbred Gilts
作  者：
FANG Gui-you;LIU Jing;MIAO Fu-rong;YE Ding-cheng;DONG Zhi-yan;Institute of Animal Husbandry and Veterinary Medicine,Fujian Academy of Agricultural Sciences;
关键词：
digestible lysine;;two-line crossbred gilts;;growth performance;;serum parameters;;low protein diet
摘  要：
Effect of lysine content in a low-crude-protein fodder on the growth performance and serum biochemical indices of 70-to-100-kg-class gilts was studied.Ninety-six gilts crossbred between Landrace and Large White with an average body weight of(69.01±4.43)kg and similar physical conditions were randomly divided into 4 groups with 4 replicates each for the study.With an equal energy and balanced amino acid design,the digestible lysine(DLys)at 0.61%(Group I),0.66%(Group II),0.71%(Group III)or 0.76%(Group IV)in the low protein diets were applied for the feeding.The results showed the gilts in Group II had the highest average daily gain at 908.33 g·d~(-1) and the lowest feed/gain ratio at 2.77(P<0.05)among all.The Group II gilts also showed a significantly lower serum urea nitrogen than the gilts in Group I or Group IV(P<0.05),but no significant difference in comparison with Group III(P>0.05).The serum insulin and insulin growth factor-I in all test animals increased initially,and then,decreased as DLys increased(P >0.05).The serum lysine and threonine of the Group I gilts were significantly lower than those of Group IV(P<0.05),while the other amino acids decreased initially and followed by an increase with increasing DLys(P>0.05),which was lower in Group II.Taking all factors into account,a daily DLys intake of 16.57 g·d~(-1)(or,as in Group II,0.66% DLys in the low-protein diet)would be optimal for the growth of gilts in the weight class.

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