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Effects of dietary supplementation of bacteriophage cocktail on health status of weanling pigs in a non-sanitary environment

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Journal of Animal Science and Biotechnology 2023年第4期14卷 1661-1677页

作者： YoHan Choi Abdolreza Hosseindoust Sang Hun Ha Joeun Kim YeJin Min YongDae Jeong JunYoung Mun SooJin Sa JinSoo Kim Swine Science Division National Institute of Animal ScienceRural Development AdministrationCheonan 31000Republic of Korea Department of Animal Industry Convergence Kangwon National UniversityChuncheon 24341Republic of Korea

Background The study evaluated the effects of bacteriophage cocktail(BP)and ZnO administered during weaning time for piglets exposed to a non-sanitary *** bacteriophages were designed to eliminate Escherichia coli(K88,K99 and F41),Salmonella(typhimurium and enteritidis),and Clostridium perfreingens(types A and C).Forty 21-day-old crossbreed piglets were assigned to four treatments,including the PC(sanitary environment),NC(nonsanitary environment),BP(NC plus 108 pfu/kg BP),and ZO(NC plus 2,500 mg/kg ZnO).Piglets in the NC,BP and ZO were kept in a non-sanitary environment for 14 d,which was contaminated with the feces of infected *** Pigs in the BP and ZO treatments had a higher final body weight compared with the *** NC treatment showed the highest concentration of inflammatory cytokines including interleukin(IL)-1β,IL-6 and tumor necrosis factor-αin the *** administration of BP and ZO showed lower myeloperoxidase concentrations compared with the *** NC treatment showed a lower concentration of superoxide dismutase in serum compared with the *** the treatments in non-sanitary environment,the NC treatment showed a higher concentration of malondialdehyde compared with the *** PC treatment showed a lower concentration of butyric acid in the feces compared with the BP *** non-sanitary treatments,the villus height in the duodenum was greater in the BP and ZO compared with the *** lower abundance of Proteobacteria phylum was observed in the BP and PC treatments compared with the *** highest relative abundance of Eubacterium was recorded in the BP *** abundance of Megasphaera and Schwartzia was higher in the NC pigs compared with the BP *** abundance of Desulfovibrio was lower in the supplemented treatments(BP and ZO)compared with non-supplemented(NC and PC).The abundance of Cellulosilyticum genera was higher in the BP and ZO treatments rather than in the *** piglets in the NC treatment had the

关键词： Antioxidant Cytokines Diarrhea fecal score Inflammation Microbiota Proteobacteria

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