| 日粮粗蛋白质、可消化赖氨酸水平对生长猪生长性能和氮排泄量的影响 |
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| 引用本文： | 董志岩,方桂友,陈婉如,李忠荣,刘景,叶鼎承,缪伏荣.日粮粗蛋白质、可消化赖氨酸水平对生长猪生长性能和氮排泄量的影响[J].福建农业学报,2012,27(3):227-231. |
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| 作者姓名： | 董志岩 方桂友 陈婉如 李忠荣 刘景 叶鼎承 缪伏荣 |
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| 作者单位： | 福建省农业科学院畜牧兽医研究所,福建福州,350003 |
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| 基金项目： | 福建省科技计划重大专项专题 |
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| 摘 要： | 将90头平均体重为(32.0±1.5)kg的杜长大三元杂交猪随机分为5个组,每组3个重复,每重复6头猪;1组为对照组(粗蛋白质水平17.47%、可消化赖氨酸水平0.80%),2～5组为试验组,采用2×2因子设计,粗蛋白质水平为15.46%和13.49%与可消化赖氨酸水平为0.80%和0.85%。试验期50d。结果:(1)日粮粗蛋白质水平15.46%、可消化赖氨酸水平0.80%,对猪的生长性能无影响(P>0.05),尿氮排出量显著降低;当可消化赖氨酸水平增至0.85%时,猪的日增重显著提高(P<0.05),尿氮、粪氮排出量显著降低。(2)日粮粗蛋白质水平13.49%、可消化赖氨酸水平0.80%,对猪的生产性能无影响,尿氮、粪氮及总氮排出量显著降低;当可消化赖氨酸水平增至0.85%时,影响猪的生长。结论:日粮粗蛋白质水平降低4个百分点,可消化赖氨酸水平保持0.80%不变,对生长猪生长性能无影响,氮排泄量显著降低。
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| 关 键 词： | 粗蛋白质水平 可消化赖氨酸水平 生长性能 尿氮 粪氮 生长猪 |
The Effect of Dietary Crude Protein and Digestible Lysine on Growth Performance and Nitrogen Excretion in Growing Pig |
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| DONG Zhi-yan
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FANG Gui-you
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CHEN Wan-ru
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LI Zhong-rong
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LIU Jing
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YE Ding-cheng
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Miao Fu-rong.The Effect of Dietary Crude Protein and Digestible Lysine on Growth Performance and Nitrogen Excretion in Growing Pig[J].Fujian Journal of Agricultural Sciences,2012,27(3):227-231. |
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| Authors: | DONG Zhi-yan FANG Gui-you CHEN Wan-ru LI Zhong-rong LIU Jing YE Ding-cheng Miao Fu-rong |
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| Institution: | (Institute of Animal Husbandry and Veterinary Medicine,Fujian Academy of Agriculture Sciences,Fuzhou, Fujian 350013,China) |
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| Abstract: | 90 DLY cross bred pigs(32.0±1.5 kg) were randomly allocated into 5 groups,3 replicates per group,6 pigs in each replicate to investigate the effects of dietary protein and lysine on growth performance and nitrogen excretion in growing pigs.2×2 factors were designed.Control group was fed with diet of 17.47% crude protein(CP) and 0.80% digestible Lys(Dly).4 treatment groups was fed with diet of 15.46%,13.49% CP and 0.80%,0.85% Dly,respectively.The test duration was lasted for 50 days.The results showed that the treatment fed with diet of 15.46% CP and 0.80% Dly has not effect on the growth performance in growing pigs in comparison with others(P>0.05),but compared to the control,urinary nitrogen was significant decreased(P<0.05).The treatment fed with diet of 0.85% Dly,ADG are increased significantly(P<0.05) and feces nitrogen and,urinary nitrogen are decreased significantly(P<0.05) in comparison with others.The treatment fed with diet of 13.49% CP and 0.80% Dly has not effect on the growth performance in growing pigs(P>0.05) compared to the others,urinary and feces nitrogen and total nitrogen was significant decreased(P<0.05) compared to the control.The treatment fed with diet of 13.49% CP and 0.85% Dly has effect on the growth performance in growing pigs.The results indicate that diet of 13.49% CP and 0.80% Dly has not effect on the growth performance in growing pigs(P>0.05) but at the same time nitrogen excretion is significant decreased in comparison with the diet of 17.47% CP and 0.80% Dly(P<0.05). |
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| Keywords: | crude protein level digestible Lys level growth performance nitrogen excretion growing pigs |
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