Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (8): 129-134.doi: 10.11924/j.issn.1000-6850.casb2021-0237

Special Issue: 生物技术 植物保护 畜牧兽医

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Effect of Seasonal Variation on Intestinal Microflora of Free-range Luhua Chicken Analyzed by DGGE

ZHANG Tengshuai1,2,3(), ZHANG Yanying2, LIU Jingguo1()   

  1. 1Key Laboratory of Urban Agriculture (North China), Ministry of Agriculture and Rural Affairs, Beijing 102206
    2College of Animal Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei 066600
    3Hebei Animal Disease Prevention and Control Center, Shijiazhuang 050035
  • Received:2021-03-09 Revised:2021-07-30 Online:2022-03-15 Published:2022-04-06
  • Contact: LIU Jingguo E-mail:943831441@qq.com;ljg2007@bua.edu.cn

Abstract:

To explore the effect of seasonal variation on the intestinal microflora of adult chicken, the PCR-DGGE method was used in this study to determine the microbial community in caecum and small intestine, which were collected from free-range Luhua chicken in winter, spring and summer. The results showed that the intestinal microflora of adult chicken changed greatly with season. There were only 66.7% and 62.5% similarity between microbial community in caecum and small intestine in summer and those in winter, respectively. The diversity of microbial community in caecum was much higher than that in small intestine. However, seasonal variation had different effects on the microflora of caecum and small intestine. The microflora diversity of caecum was lower in summer and winter than that in spring, while that of small intestine in summer and winter were higher. The common strains in caecum included Megamonas, Bacteroides and Clostridium, whose amount did not change with season; while the common strain in small intestine was mainly Lactobacillus, and the amount of its different species changed with season. These results provide a theoretical basis for adding distinct probiotics to forage according the seasonal variation.

Key words: intestinal microflora, seasonal variation, diversity, Luhua chicken

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