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Maintenance of gut microbiome stability for optimum intestinal health in pigs——a review

Journal of Animal Science and Biotechnology 2023年第3期14卷 853-863页

作者： santi devi upadhaya In Ho Kim Department of Animal Resource and Science Dankook UniversityNo.29 AnseodongCheonan31116ChoongnamSouth Korea

Pigs are exposed to various challenges such as weaning,environmental stressors,unhealthy diet,diseases and infections during their lifetime which adversely affects the gut *** inability of the pig microbiome to return to the pre-challenge baseline may lead to dysbiosis resulting in the outbreak of ***,the maintenance of gut microbiome diversity,robustness and stability has been influential for optimum intestinal health after *** human and animal researches have focused on more holistic approaches to obtain a robust gut microbiota that provides protection against pathogens and improves the digestive physiology and the immune *** this review,we present an overview of the swine gut microbiota,factors affecting the gut microbiome and the importance of microbial stability in promoting optimal intestinal ***,we discussed the current understanding of nutritional interventions using fibers and pre/probiotics supplementation as non-antibiotic alternatives to maintain microbiota resilience to replace diminished species.

关键词： Microbial diversity Nutritional intervention Perturbation Resilience Swine gut microbiome stability

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Bacteriophage cocktail supplementation improves growth performance,gut microbiome and production traits in broiler chickens

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Journal of Animal Science and Biotechnology 2021年第4期12卷 1339-1350页

作者： santi devi upadhaya Je Min Ahn Jae Hyoung Cho Jin Young Kim Dae Kyung Kang Sung Woo Kim Hyeun Bum Kim In Ho Kim Department of Animal Resource and Science Dankook UniversityNo.29 AnseodongCheonanChoongnam 31116South Korea Department of Animal Science North Carolina State University116 Polk HallBox 7621120 W Broughton DrRaleighNC 27695USA

Background:Effective antibiotic alternatives are urgently needed in the poultry industry to control disease *** therapy mainly utilizes lytic phages to kill their respective bacterial hosts and can be an attractive solution to combating the emergence of antibiotic resistance in ***:Five hundred and four,one-day-old broilers(Ross 308)were allotted to 1 of 4 treatment groups in a completely randomized *** consisted of CON(basal diet),PC(CON+0.025%Avilamax®),BP 0.05(CON+0.05%bacteriophage),and BP 0.10(CON+0.10%bacteriophage).Results:A significant linear effect on body weight gain(BWG)was observed during days 1–7,days 22–35,and cumulatively in bacteriophage(BP)supplemented *** BWG tended to be higher(P=0.08)and the feed intake(FI)was increased(P=0.017)in the PC group over CON group.A greater(P=0.016)BWG and trends in increased FI(P=0.06)were observed in the experiment in birds fed PC than CON *** the genus level,the relative abundance of Lactobacillus was decreased in PC(65.28%),while it was similar in BP 0.05 and BP 0.10(90.65%,86.72%)compared to CON(90.19%).At the species level,the relative abundance of Lactobacillus salivarus was higher in BP 0.05(40.15%)and BP 0.10(38.58%)compared to the CON(20.04%)and PC(18.05%).A linear reduction in the weight of bursa of Fabricius(P=0.022)and spleen(P=0.052)was observed in birds fed graded level of BP and an increase(P=0.059)in the weight of gizzard was observed in birds fed PC over BP *** and quadratic responses were observed in redness of breast muscle color in birds fed graded level of ***:The inclusion of the 0.05%and 0.1%BP cocktail linearly improved broiler weight during the first 7 days,22–35 days and cumulatively,whereas 0.05%BP addition was sufficient for supporting immune organs,bursa and spleen as well as enhancing gut microbiome,indicating the efficacy of 0.05%BP as a substitute antibiotic growth promoter in broiler diets.

关键词： Bacteriophage Broiler chickens Gut microbiome Performance

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