Interactions between maternal parity and feed additives drive the composition of pig gut microbiomes in the post-weaning period

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外文摘要：Background Nursery pigs undergo stressors in the post-weaning period that result in production and welfare chal-lenges.These challenges disproportionately impact the offspring of primiparous sows compared to those of mul-tiparous counterparts.Little is known regarding potential interactions between parity and feed additives in the post-weaning period and their effects on nursery pig microbiomes.Therefore,the objective of this study was to investigate the effects of maternal parity on sow and offspring microbiomes and the influence of sow parity on pig fecal microbi-ome and performance in response to a prebiotic post-weaning.At weaning,piglets were allotted into three treat-ment groups:a standard nursery diet including pharmacological doses of Zn and Cu(Con),a group fed a commercial prebiotic only(Preb)based on an Aspergillus oryzae fermentation extract,and a group fed the same prebiotic plus Zn and Cu(Preb+ZnCu).Results Although there were no differences in vaginal microbiome composition between primiparous and mul-tiparous sows,fecal microbiome composition was different(R2=0.02,P=0.03).The fecal microbiomes of primiparous offspring displayed significantly higher bacterial diversity compared to multiparous offspring at d 0 and d 21 post-weaning(P＜0.01),with differences in community composition observed and 21(R2=0.03,P=0.04).When analyzing the effects of maternal parity within each treatment,only the Preb diet triggered significant microbiome distinc-tions between primiparous and multiparous offspring(d 21:R2=0.13,P=0.01;d 42:R2=0.19,P=0.001).Composi-tional differences in pig fecal microbiomes between treatments were observed only at d 21(R2=0.12,P=0.001).Pigs in the Con group gained significantly more weight throughout the nursery period when compared to those in the Preb+ZnCu group.Conclusions Nursery pig gut microbiome composition was influenced by supplementation with an Aspergillus oryzae fermentation extract,with varying effects on performance when combined with pharmacological levels of Zn and Cu or for offspring of different maternal parity groups.These results indicate that the development of nursery pig gut microbiomes is shaped by maternal parity and potential interactions with the effects of dietary feed additives.

外文关键词：

Aspergillus prebioticCopperFeed additivesMaternalNursery pig microbiomeParitySwine microbiomeTrace mineralsZinc

作者：

Kayla Law、Eduardo Rosa Medina Garcia、Chad Hastad、Deborah Murray、Pedro E.Urriola、Andres Gomez

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作者单位：

Department of Animal Science,University of Minnesota,1364 Eckles Avenue,Saint Paul,MN 55108,USA

New Fashion Pork,164 Industrial Parkway,Jackson,MN 56143,USA

基金：

Agricultural Research,Education,Extension and Technology Transfer(AGREETT)MN Drive Global Food Ventures ProgramsUniversity of MinnesotaBioZyme,Inc,St.Joseph,Missouri,USA and New Fashion Pork,Jackson,MN,USA

项目编号：

出版年：

2024

DOI：

10.1186/s40104-024-00993-x

畜牧与生物技术杂志(英文版)

中国科学技术协会

畜牧与生物技术杂志(英文版)

CSTPCD

影响因子：0.765

ISSN：1674-9782

年,卷(期)：2024.15(3)