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Effect of Pelleted Total Mixed Ration of Different Particle Sizes on Production Performance and Serum Biochemical Index of Fattening Hainan Black Goats

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【作者】 Liu QuanweiWei LiminWang FengTan ShuyiSun RuipingHuang LiliZheng Xinli

【Author】 Liu Quanwei;Wei Limin;Wang Feng;Tan Shuyi;Sun Ruiping;Huang Lili;Zheng Xinli;Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences;Hainan Key Lab of Tropical Animal Reproduction,Breeding and Epidemic Disease Research;

【通讯作者】 Zheng Xinli;

【机构】 Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural SciencesHainan Key Lab of Tropical Animal Reproduction,Breeding and Epidemic Disease Research

【摘要】 [Objective] The paper to investigate the effects of pelleted total mixed ration of different particle size on production performance and serum biochemical index of fattening Hainan black goats. [Method] Thirty-six fattening Hainan black goats with the same genetic backgrounds and similar initial weight of(19.02±0.22) kg were randomly divided into three treatments. Goats were fed with Juncao+concentrate(control group), pel-leted total mixed ration I(particle size 6 mm, experimental group I) and II(particle size 5 mm, experimental group II), respectively. The trial lasted 45 d. [Result](1) The final weight and daily gain of experimental group II were significantly higher than those of control group( P<0.05), and the daily gain of experimental group II was also higher than that of experimental group I(P<0.05); the feed intake of experimental group II was markedly higher than that of control group(P<0.05), but was significantly lower than that of experimental group I(P<0.05). The feed/gain ratio of experimental group II was significantly lower than those of control group and experimental group I(P<0.05).(2) The feed gain cost of experimental group II was markedly lower than that of control group(P<0.05), but the gross profit was significantly higher than those of control group and experimental group I(P<0.05).(3) Compared with the control group, the serum total protein content of experimental group II increased markedly( P<0.05) while the urea nitrogen level decreased(P>0.05). [Conclusion] The pelleted total mixed ration with the particle size of 5 mm obtained better fattening ef-fect, and obviously improved the serum total protein level.

【基金】 Supported by Major Science and Technology Program of Hainan Province(ZDKJ2016017-01,ZDKJ2016017-03)
【所属期刊栏目】 Feed and Nutrition (2019年01期)
  • 【DOI】10.19578/j.cnki.ahfs.2019.01.007
  • 【分类号】S827.5
  • 【下载频次】7
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