Effects of Passiflora edulis pericarp polysaccharides on living environment and serum biochemical indices of pigs under high stocking density

Xue Xinfang; Wei Zhifei; Xiang Yifei; Liao Mengyao; Wen Chongli; Hong Shaofeng; Lin Changhua; He Jiakang

doi:10.20154/j.cnki.issn1672-9692.2025.07.006

Abstract：This study investigated the effects of Passiflora edulis pericarp polysaccharides(PEPP)on temperature-arranged into five replicates with nine pigs per replicate.The ND group and HD group were fed with the basal diet,while HD-APS group added 20 mg/kg Astragalus polysaccharides(APS)to the basal diet.The HD-PEPP-L,HD-PEPP-M,and HD-PEPP-H groups were respectively supplemented with 10,20,and 40 mg/kg of PEPP in the basal diet.The test period is 28 days.The results showed that compared with ND group,the THI of the pig herd in HD group was extremely increased(P<0.01),the air circulation velocity in the pigsty was significantly decreased(P<0.05),and the air quality was significantly reduced.The activity of aspartate aminotransferase(AST)and the content of triglycerides(TG)in the serum of replacement sows increased significantly(P<0.05),the activities of alanine aminotransferase(ALT)and amylase(AMY)increased extremely(P<0.01),and the content of blood urea nitrogen(BUN)decreased significantly(P<0.05).Compared with HD group,there were no significant differences in the THI of pig herds and the air circulation velocity and air quality indicators of pig houses in each administration group(P>0.05).Compared with HD group,the activities of serum ALT and AST and the content of TG in replacement sows in HD-PEPP-M group were significantly decreased(P<0.05),the activity of AMY was extremely decreased(P<0.01),and the content of BUN and the ratio of urea to creatinine(BUN/CREA)were significantly increased(P<0.05).The activities of serum ALT and AMY in replacement sows in HD-PEPP-H group were extremely decreased(P<0.01),the activity of AST and the content of TG were significantly decreased(P<0.05),and the content of BUN was significantly increased(P<0.05).Studies have shown that PEPP has demonstrated a good improvement effect on the liver,kidney and pancreatic functions of replacement sows under HSD conditions.The experimental results can provide a reference for the new drug development of PEPP.