SWINE NUTRITION AND FEED

Effects of Three Kinds of Diets without Antibiotics on Growth Performance, Slaughter Performance, Meat Quality and Flavor of Duroc and Bamei Cross Finishing Pigs

  • CHAI Mingjie ,
  • CHEN Guoshun ,
  • SU Yingyu ,
  • WANG Dong ,
  • YAO Yueyang ,
  • SUI Xiaodong ,
  • WANG Jin ,
  • ZHOU Sensen
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  • 1. College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
    2. Gansu Aonong Feed Technology Co., Ltd., Wuwei 733100, China;
    3. Department of Life Science and Engineering, Hexi University, Zhangye 734000, China;
    4. Hefei Maikeluo Biological Engineering Co., Ltd., Hefei 230001, China

Received date: 2019-11-07

  Online published: 2020-05-15

Abstract

The aim of this study was to investigate the effects of three kinds of feed without antibiotics on growth performance, slaughter performance, meat quality and flavor of Duroc and Bamei cross finishing pigs. Thirty-two binary hybrid (Duroc×Bamei) pigs with an average body weight of (65.50±2.20) kg were selected as experimental animals, which the health condition was basically the same. They were randomly divided into 4 groups with 4 replicates in each group and 2 pigs in each replicate. The diet of control group was a basal diet, while the diets of test Ⅰgroup, test Ⅱ group and test Ⅲ group were supplemented with 0.3% natural plant compound, 0.3% Cynomorium ultrafine powder and 0.3% Acremonium terricola culture in the basal diet, respectively. The preliminary test period was 7 days, and the normal test period was 42 days. The results showed that compared with the control group, in the test Ⅰ group, test Ⅱ group and test Ⅲ group, the average daily gain (ADG) was increased by 14.94% (P<0.05), 8.05% (P>0.05) and 9.20% (P>0.05), and the ratio of feed to gain (F/G) was decreased by 6.62% (P>0.05), 8.01% (P>0.05) and 7.32% (P>0.05), respectively; the muscle shear force was decreased by 8.57% (P>0.05), 12.32% (P<0.05) and 6.71% (P>0.05), and the water loss rate was decreased by 21.20% (P<0.05), 20.67% (P<0.05) and 7.74% (P<0.05), respectively; the muscle crude protein content was increased by 6.87% (P>0.05), 6.00% (P>0.05) and 5.27% (P>0.05), the crude fat content was increased by 13.85% (P<0.05), 8.00% (P>0.05) and 7.08% (P>0.05), and the inosinic acid content was increased by 6.79% (P>0.05), 2.25% (P>0.05) and 23.12% (P<0.05), respectively; the muscle flavor amino acid content was increased by 16.14% (P<0.05), 16.89% (P<0.05) and 7.22% (P>0.05), and the glutamate/total amino acids was increased by 8.42% (P>0.05), 2.25% (P>0.05) and 2.71% (P>0.05), respectively; the muscle unsaturated fatty acids/total fatty acids was increased by 7.78% (P<0.05), 8.77% (P<0.05) and 8.74% (P<0.05), respectively. In addition, the types of alcohols in muscle were 16, 17 and 16 in the test Ⅰ group, test Ⅱ group and test Ⅲ group, respectively, which were all higher than 14 in the control group. In conclusion, different natural plant feed additives in the diets can enhance the growth performance and improve the quality and flavor of meat of Duroc×Bamei cross finishing pigs. Among them, adding 0.3% natural plant compound has a better effect on improving growth performance, adding 0.3% Cynomorium ultrafine powder or 0.3% Acremonium terricola culture has a better effect on improving the quality and flavor of meat.

Cite this article

CHAI Mingjie , CHEN Guoshun , SU Yingyu , WANG Dong , YAO Yueyang , SUI Xiaodong , WANG Jin , ZHOU Sensen . Effects of Three Kinds of Diets without Antibiotics on Growth Performance, Slaughter Performance, Meat Quality and Flavor of Duroc and Bamei Cross Finishing Pigs[J]. Chinese Journal of Animal Nutrition, 2020 , 32(5) : 2087 -2100 . DOI: 10.3969/j.issn.1006-267x.2020.05.017

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