RESEARCH PAPER

Effects of Probiotics on Growth Performance, Nutrient Apparent Digestibility, Fecal Microbiota and Short Chain Fatty Acids of Finishing Pigs in Later Finishing Period

  • WANG Sixin ,
  • JI Haifeng ,
  • LIU Hui ,
  • ZHANG Dongyan ,
  • WANG Jing ,
  • CHEN Meixia ,
  • WANG Yamin
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  • Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China

Received date: 2021-12-07

  Online published: 2022-07-14

Abstract

This experiment was conducted to evaluate the effects of probiotics on growth performance, nutrient apparent digestibility, fecal microbiota and short chain fatty acids of finishing pigs in later finishing period. A total of 100 "Landrace×Yorkshire" crossbred finishing pigs with an average body weight of (92.01±0.91) kg were divided into control group and probiotic group. Each group had 5 replicates with 10 pigs per replicate. Pigs in the control group were fed a basal diet, and those in the probiotic group were fed the basal diet supplemented with probiotics (2.0×109 CFU Lactobacillus casei and 2.0×108 CFU Saccharomyces cerevisiae per kg diet). The experimental period was 31 d. The results showed as follows:compared with control group, the average daily gain (ADG) in the probiotic group was increased by 9.42% (P<0.05), and the feed/gain (F/G) was decreased by 6.90% (P>0.05); the apparent digestibility of calcium and total phosphorus in the probiotic group was significantly increased (P<0.05); the relative abundances of low-abundance fecal microbiota such as Prevotella, Alloprevotella, Phascolarctobacterium, Coprococcus, Desulfovibri, Faecalibacterium, Butyricicoccus and Succinivibrio in the probiotic group were significantly increased (P<0.05), and the relative abundances of norank_f_Oscillospiraceae, Eubacterium_siraeum_group, Anaeroplasma and Eubacterium_brachy_group were significantly decreased (P<0.05); the contents of total short chain fatty acids, propionic acid and valeric acid in feces in the probiotic group were significantly increased (P<0.05), while the proportion of acetic acid in the total short chain fatty acids was significantly decreased (P<0.05). The results indicate that adding probiotics (Lactobacillus casei and Saccharomyces cerevisiae) into the diet of finishing pigs in later finishing period (body weight:90 to 120 kg) can improve the growth performance and nutrient apparent digestibility, affect the relative abundances of low-abundance fecal microbiota, and increase the relative abundances of microbiota producing short chain fatty acids and the contents of total short chain fatty acids, propionic acid and valeric acid in feces.

Cite this article

WANG Sixin , JI Haifeng , LIU Hui , ZHANG Dongyan , WANG Jing , CHEN Meixia , WANG Yamin . Effects of Probiotics on Growth Performance, Nutrient Apparent Digestibility, Fecal Microbiota and Short Chain Fatty Acids of Finishing Pigs in Later Finishing Period[J]. Chinese Journal of Animal Nutrition, 2022 , 34(7) : 4227 -4236 . DOI: 10.3969/j.issn.1006-267x.2022.07.015

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