Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (35): 105-110.doi: 10.11924/j.issn.1000-6850.casb2022-0011

Special Issue: 生物技术

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Effects of Pennisetum giganteum on Growth, Slaughter Performance and Gene Expression of H-FABP and A-FABP in Phasianus colchicus

HAO Liuliu(), DENG Xinwei, QIU Bowen, SUN Zhihong()   

  1. College of Life Sciences, Yan’an University, Yan’an, Shaanxi 716000
  • Received:2022-01-19 Revised:2022-06-10 Online:2022-12-15 Published:2022-12-09
  • Contact: SUN Zhihong E-mail:2424140966@qq.com;ydsunzhihong@163.com

Abstract:

The purpose of this experiment is to investigate the effect of adding Pennisetum giganteum in diet on growth indexes, slaughter performance, and fat-related genes of heart-type fatty acid-binding protein (H-FABP) and adipocyte fatty acid-binding protein (A-FABP) gene in Phasianus colchicus. The experiment selected 150 healthy P. colchicus (4 weeks old) in the same batch and randomly divided them into 4 experimental groups and 1 control group, 10 in each group, 3 replicates. The addition amount for the experimental groups was 4%, 8%, 12%, and 16%, respectively. The control group was fed with basal diet, and the feeding period was 16 weeks. Compared with that of the control group, the difference of the average body weight of the 8% P. giganteum adding group was significantly increased (P<0.05); the average daily feed intake increased, but the difference was not significant (P>0.05); the average daily weight increase of each experiment group was significantly greater than that of the control group (P<0.05), among which the 8% P. giganteum adding group had the most significant improvement effect. The 4%, 8%, and 12% P. giganteum adding groups had a decrease in the ratio of feed to weight; and compared with those of the control group, the slaughter rate, half evisceration rate and complete evisceration rate of the 8% P. giganteum adding group significantly increased (P<0.05). The breast muscle rate of P. colchicus in the P. giganteum adding groups increased, but the difference was not significant compared with that of the control group (P>0.05); the leg muscle rate in the 8% P. giganteum adding group was significantly higher than that in the control group (P<0.05). The differential expression of H-FABP and A-FABP genes were determined by real-time fluorescence quantitative PCR after the addition of P. giganteum diet, and were significantly increased in the 8% P. giganteum adding group. Therefore, adding 8% of P. giganteum to the diet can significantly improve the growth index, slaughter performance and the expression of fat-related genes in P. colchicus.

Key words: Phasianus colchicus, Pennisetum giganteum, growth performance, slaughter performance, H-FABP gene, A-FABP gene

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