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Investigating the effects of peptide-based, MOS and protease feed additives on the growth performance and fecal microbial composition of weaned pigs
Journal of Animal Science and Biotechnology ( IF 7 ) Pub Date : 2022-03-17 , DOI: 10.1186/s40104-022-00681-8
Prakash Poudel 1 , Ryan Samuel 2 , Crystal Levesque 2 , Benoit St-Pierre 2
Affiliation  

Digestive disorders in weaning pigs remain a major challenge for swine producers. Different types of commercial feed additives have been developed to promote gut health and development in young pigs, but their effects on resident gut microbial communities remain largely unexplored. The aim of this study was to investigate the impact of a peptide-based product (Peptiva) in combination with mannose oligosaccharides (MOS) and an exogenous protease on the performance and fecal microbiome of nursery pigs. A total of 1097 weaned pigs were divided into 44 pens (24–26 pigs/pen) with each pen randomly assigned to one of four experimental diets as part of Phase II and Phase III of a standard nursery phase feeding program. Fecal samples collected from representative control and treatment pigs were used to investigate bacterial composition profiles by high throughput sequencing of PCR-generated amplicons targeting the V1-V3 region of the 16S rRNA gene. Higher gain:feed was observed for pigs fed Peptiva and MOS compared to Controls during the period when experimental diets were fed, but the benefits of supplementation were not maintained after pigs were transitioned to a non-supplemented diet. Three candidate bacterial species, identified as Operational Taxonomic Units (OTUs), were found to have significantly different abundances between control samples and treatment samples during the same phase. In Phase III samples, SD_Ssd-00039, predicted to be a strain of Streptococcus alactolyticus based on nucleotide sequence identity, was the most highly represented of these OTUs with an average abundance in pigs fed Peptiva, MOS and protease that was 3.9 times higher than in Controls. The report also presents evidence of microbial succession that occurred during the trial, with 16 of the 32 most abundant OTUs found to vary between Phase II and Phase III samples for the same dietary treatment. Dietary supplementation with a combination of a peptide-based product, MOS, and protease increased the growth performance of weaned pigs compared to control animals during the nursery phase, but these benefits were no longer observed within 2 weeks after all animals were transitioned to a non-supplemented diet. Supplementation with these feed additives was found to modulate the composition of the swine gut microbiome during this period.

中文翻译:

研究肽基、MOS 和蛋白酶饲料添加剂对断奶猪生长性能和粪便微生物组成的影响

断奶仔猪的消化系统疾病仍然是养猪生产者面临的主要挑战。已经开发了不同类型的商业饲料添加剂来促进幼猪的肠道健康和发育,但它们对常驻肠道微生物群落的影响在很大程度上仍未得到探索。本研究的目的是调查基于肽的产品 (Peptiva) 与甘露糖寡糖 (MOS) 和外源蛋白酶组合对保育猪的生产性能和粪便微生物组的影响。总共 1097 头断奶仔猪被分成 44 个栏(24-26 头/栏),每个栏被随机分配到四种实验日粮中的一种,作为标准保育期喂养计划的 II 期和 III 期的一部分。从代表性对照和处理猪收集的粪便样本用于通过对靶向 16S rRNA 基因的 V1-V3 区域的 PCR 生成的扩增子进行高通量测序来研究细菌组成谱。更高的增益:在饲喂实验日粮期间,与对照组相比,饲喂 Peptiva 和 MOS 的猪的饲料观察到了,但在猪过渡到不添加日粮后,添加的益处并未保持。发现三种候选细菌物种,被确定为操作分类单位 (OTU),在同一阶段,对照样品和处理样品之间的丰度存在显着差异。在 III 期样本中,SD_Ssd-00039,根据核苷酸序列同一性预测为溶乳链球菌菌株,是这些 OTU 中代表性最高的,饲喂 Peptiva、MOS 和蛋白酶的猪的平均丰度是对照组的 3.9 倍。该报告还提供了试验期间发生的微生物演替的证据,发现在 32 个最丰富的 OTU 中,有 16 个在相同的饮食处理的 II 期和 III 期样本之间存在差异。与对照动物相比,在保育阶段,与基于肽的产品、MOS 和蛋白酶组合的日粮补充剂提高了断奶猪的生长性能,但在所有动物过渡到非-补充饮食。在此期间,发现补充这些饲料添加剂可以调节猪肠道微生物组的组成。MOS 和蛋白酶比对照组高 3.9 倍。该报告还提供了试验期间发生的微生物演替的证据,发现在 32 个最丰富的 OTU 中,有 16 个在相同的饮食处理的 II 期和 III 期样本之间存在差异。与对照动物相比,在保育阶段,与基于肽的产品、MOS 和蛋白酶组合的日粮补充剂提高了断奶猪的生长性能,但在所有动物过渡到非-补充饮食。在此期间,发现补充这些饲料添加剂可以调节猪肠道微生物组的组成。MOS 和蛋白酶比对照组高 3.9 倍。该报告还提供了试验期间发生的微生物演替的证据,发现在 32 个最丰富的 OTU 中,有 16 个在相同的饮食处理的 II 期和 III 期样本之间存在差异。与对照动物相比,在保育阶段,与基于肽的产品、MOS 和蛋白酶组合的日粮补充剂提高了断奶猪的生长性能,但在所有动物过渡到非-补充饮食。在此期间,发现补充这些饲料添加剂可以调节猪肠道微生物组的组成。该报告还提供了试验期间发生的微生物演替的证据,发现在 32 个最丰富的 OTU 中,有 16 个在相同的饮食处理的 II 期和 III 期样本之间存在差异。与对照动物相比,在保育阶段,与基于肽的产品、MOS 和蛋白酶组合的日粮补充剂提高了断奶猪的生长性能,但在所有动物过渡到非-补充饮食。在此期间,发现补充这些饲料添加剂可以调节猪肠道微生物组的组成。该报告还提供了试验期间发生的微生物演替的证据,发现在 32 个最丰富的 OTU 中,有 16 个在相同的饮食处理的 II 期和 III 期样本之间存在差异。与对照动物相比,在保育阶段,与基于肽的产品、MOS 和蛋白酶组合的日粮补充剂提高了断奶猪的生长性能,但在所有动物过渡到非-补充饮食。在此期间,发现补充这些饲料添加剂可以调节猪肠道微生物组的组成。与对照动物相比,在保育阶段,蛋白酶和蛋白酶提高了断奶仔猪的生长性能,但在所有动物转为非补充饮食后的 2 周内,不再观察到这些益处。在此期间,发现补充这些饲料添加剂可以调节猪肠道微生物组的组成。与对照动物相比,在保育阶段,蛋白酶和蛋白酶提高了断奶仔猪的生长性能,但在所有动物转为非补充饮食后的 2 周内,不再观察到这些益处。在此期间,发现补充这些饲料添加剂可以调节猪肠道微生物组的组成。
更新日期:2022-03-17
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