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Acta Prataculturae Sinica ›› 2021, Vol. 30 ›› Issue (6): 180-189.DOI: 10.11686/cyxb2020318

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Effects of feeding fermented cauliflower residue on growth performance, serum biochemical indices, intestinal tissue morphology and economic returns of nursery pigs

Jing-ting LAN1(), Rui REN2, Rui ZHOU1, Hong-wei DAI1, Wen-xiu SHU1, Kai ZHU1, Lue-yu WANG1, Hong-wei XU1(), Rong-xin ZANG1()   

  1. 1.College of Life Science and Engineering,Northwest Minzu University,Lanzhou 730100,China
    2.Agricultural and rural Bureau of Nanjiang County,Bazhong 635600,China
  • Received:2020-07-06 Revised:2020-09-10 Online:2021-05-21 Published:2021-05-21
  • Contact: Hong-wei XU,Rong-xin ZANG

Abstract:

This study was conducted to investigate the effects of feeding fermented cauliflower residue on growth performance, serum biochemical indices, intestinal tissue morphology and economic returns of nursery pigs. A total of 42 nursery pigs aged 40 days with similar body weight (11.40±1.36) kg and good body condition were randomly allocated to two treatment groups (Control, 20% fermented cauliflower, FC), with three replicates per treatment group and seven pigs per replicate. The experiment duration was 30 d, including 8 d pre-test and 22 d of testing. Pigs in the Control treatment group were fed a basal diet and pigs in the experimental group were fed the basal diet (80%) and fermented cauliflower residue (20%). It was found that, compared with the Control treatment group: 1) The average daily feed intake and average daily gain in the FC group were significantly increased by 16.50% and 18.68% (P<0.05), respectively, while the occurrence of diarrhea was reduced by 74.35% (P<0.05). 2) The pH of chyme in duodenum, jejunum, cecum, colon and rectum of cultured pigs in experimental group was significantly decreased by 19.16%, 11.59%, 14.09%, 15.95% and 11.23%, respectively (P<0.05). 3) The serum urea, globulin and immunoglobulin-M in the experimental group were increased (P<0.05) by 69.84%, 5.22% and 100%, respectively, while serum total cholesterol and alanine aminotransferase in the experimental group were significantly reduced (P<0.05) by 29.43% and 60.51%, respectively. 4) The villus height/crypt depth for the jejunum and villus height in the ileum in the experimental group were increased (P<0.05) by 13.64% and 11.49% respectively, while the crypt depth of the jejunum in the experimental group was decreased (P<0.05) by 9.56%. 5) The body weight gain and gross profit per pig in the experimental group were increased (P<0.05) by 30.84% and 44.48%, respectively, while the feed cost in the experimental group was decreased (P<0.05) by 21.58%. In conclusion, feeding of fermented cauliflower residue decreased the occurrence of diarrhea in nursery pigs, improved growth performance, enhanced immune function, promoted intestinal development, and improved the economic returns of nursery pigs.

Key words: fermented feed, nursery pigs, growth performance, serum biochemical indices, intestinal tissue morphology