RUMINANT AND HERBIVORE NUTRITION AND FEED

Effects of Different Combinations of Roughage and Corn Silage on Growth Performance, Slaughter Performance, Meat Performance and Meat Quality of Jinnan Cattle

  • JIN Guang ,
  • XUE Yanrong ,
  • ZHANG Yuanqing ,
  • WANG Dongcai ,
  • LI Bo ,
  • CHENG Jing ,
  • ZHANG Dandan ,
  • XU Fang ,
  • SUN Ruifeng
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  • College of Animal Science, Shanxi Agricultural University (Shanxi Academy of Agricultural Science), Taiyuan 030032, China

Received date: 2021-03-23

  Online published: 2021-10-16

Supported by

 

Abstract

The purpose of this experiment was to study the effects of different combinations of roughage and corn silage on the growth performance, slaughter performance, meat performance and meat quality of Jinnan cattle. Forty-five healthy Jinnan cattle with the body weight of (400±30) kg were randomly divided into 3 groups with 15 cattle in each group. The concentrate of the 3 groups was the same and the forage was wheat straw+corn silage (wheat straw group), millet straw+corn silage (millet straw group) and alfalfa hay+corn silage (alfalfa hay group), respectively. Wheat straw, millet straw or alfalfa hay:corn silage was 60:40. The pre-trial period was 7 days, and the trial period was 180 days. The results showed as follows:1) the average daily gain of the wheat straw group, millet straw group and alfalfa hay group was 1.05, 1.22 and 1.29 kg, respectively. The average daily gain of the millet straw group and the alfalfa hay group was significantly higher than that of the wheat straw group (P<0.05); the feed/gain of the alfalfa hay group was 7.76, which was significantly lower than that of the other 2 groups (P<0.05). 2) The carcass weight of the wheat straw group, millet straw group and alfalfa hay group was 366.90, 381.37 and 387.28 kg, respectively. The carcass weight of the millet straw group and the alfalfa hay group was significantly higher than that of the wheat straw group (P<0.05); the high-grade meat weight and high-quality meat weight of the millet straw group and the alfalfa hay group were significantly higher than those of the wheat straw group (P<0.05). 3) The muscle shear force of the wheat straw group was 5.87 N, the alfalfa hay group was 4.36 N, and the millet straw group was 4.46 N. The muscle shear force of the alfalfa hay group and the corn straw group was significantly lower than that of the wheat straw group (P<0.05). 4) Different combinations of roughage and corn silage had no effects on the muscle conventional nutritional component contents of Jinnan cattle. The muscle total amino acid and essential amino acid contents of the millet straw group and the alfalfa hay group were significantly higher than those of the wheat straw group (P<0.05). In conclusion, under the conditions of this experiment, in comparison with wheat straw+corn silage, millet straw+corn silage and alfalfa hay+corn silage can improve the growth performance of Jinnan cattle, have a significant weight gain effect, and can improve the meat performance and the meat quality of Jinnan cattle to a certain extent.

Cite this article

JIN Guang , XUE Yanrong , ZHANG Yuanqing , WANG Dongcai , LI Bo , CHENG Jing , ZHANG Dandan , XU Fang , SUN Ruifeng . Effects of Different Combinations of Roughage and Corn Silage on Growth Performance, Slaughter Performance, Meat Performance and Meat Quality of Jinnan Cattle[J]. Chinese Journal of Animal Nutrition, 2021 , 33(10) : 5653 -5663 . DOI: 10.3969/j.issn.1006-267x.2021.10.025

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