Effect of yeast supplementation on hindgut microbiota and digestibility of horses subjected to an abrupt change of hays

Grimm, Pauline; Julliand, V.; Philippeau, Christelle; Sadet-Bourgeteau, Sophie

doi:10.1016/j.livsci.2015.11.022

Cited by 14 publications

(16 citation statements)

References 31 publications

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“…Strong evidence exists that abrupt changes in the diet are also associated with microbial disturbances in the equine gut [41][42][43][44][45]. The impact of diet on equine hindgut microbiome was discussed in more details in the review of Julliand, Grimm [46].…”

Section: Dietmentioning

confidence: 99%

Factors Influencing Equine Gut Microbiota: Current Knowledge

Garber

Hastie

Murray

2020

Journal of Equine Veterinary Science

105

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Gastrointestinal microbiota play a crucial role in nutrient digestion, maintaining animal health and welfare. Various factors may affect microbial balance often leading to disturbances that may result in debilitating conditions such as colic and laminitis. The invention of next generation sequencing technologies and bioinformatics has provided valuable information on the effects of factors influencing equine gut microbiota. Among those factors are nutrition and management (e.g. diet, supplements, exercise), medical substances (e.g. antimicrobials, anthelmintics, anaesthetics), animal-related factors (breed and age), various pathological conditions (colitis, diarrhoea, colic, laminitis, equine gastric ulcer syndrome) as well as stress-related factors (transportation and weaning). The aim of this review is to assimilate current knowledge on equine microbiome studies, focusing on the effect of factors influencing equine gastrointestinal microbiota. Decrease in microbial diversity and richness leading to decrease in stability; decrease in Lachnospiraceae and Ruminococcaceae family members, which contribute to gut homeostasis; increase in Lactobacillus and Streptococcus; decrease in lactic acid utilising bacteria; decrease in butyrate-producing bacteria that have anti-inflammatory properties may all be considered as a negative change in equine gut microbiota. Shifts in Firmicutes and Bacteroidetes have often been observed in the literature in response to certain treatments or when describing healthy and unhealthy animals; however, these shifts are inconsistent. It is time to move forward and use the knowledge now acquired to start manipulating the microbiota of horses.

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Section: Dietmentioning

confidence: 99%

Factors Influencing Equine Gut Microbiota: Current Knowledge

Garber

Hastie

Murray

2020

Journal of Equine Veterinary Science

105

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“…In addition, consistent supplement with yeast cell wall prebiotics significantly increases the proportion of Proteobacteria phyla and Faecalibacterium genus in chicken (Park et al ., ). Similarly, yeast supplementation also exhibited a sensitive response of the hindgut microbial ecosystem in horses (Grimm et al ., ). In fish species, the feed intake and weight gain were promoted by dietary supplementation of yeast extract in Nile tilapia and a more efficient defence response to disease was shown (Berto et al ., ).…”

Section: Introductionmentioning

confidence: 97%

Yeast culture dietary supplementation modulates gut microbiota, growth and biochemical parameters of grass carp

Han

Guo

et al. 2018

Microbial Biotechnology

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SummaryGut microbiota contributes positively to the physiology of their host. Some feed additives have been suggested to improve livestock health and stimulate growth performance by modulating gut bacteria species. Here, we fed grass carp with 0 (control), 8% (Treat1), 10% (Treat2), 12% (Treat3) and 16% (Treat4) of yeast culture (YC) for 10 weeks. The gut microbiota was analysed by 16S rRNA gene V3‐4 region via an Illumina MiSeq platform. PCoA test showed that gut bacterial communities in the control and Treat3 formed distinctly separate clusters. Although all the groups shared a large size of OTUs as a core microbiota community, a strong distinction existed at genus level. Treat3 contained the highest proportion of the beneficial bacteria and obviously enhanced the capacity of amino acid, lipid metabolism and digestive system. In addition, Treat3 significantly improved the fish growth and increased the liver and serum T‐SOD activities while dramatically decreased the liver GPT and GOT. Collectively, these findings demonstrate the beneficial effects of YC feeding on gut microbiota, growth and biochemical parameters and Treat3 might be the optimal supplementation amount for grass carp, which opens up the possibility that a new feed additive can be developed for healthy aquaculture.

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“…Nowadays, there is an increasing number of studies focused on the effects of abrupt changes in the diet on hindgut and faecal microbiota in horses under different dietary conditions [11][12][13][14][15][16]. Most of those studies focus on dietary transition when rapidly fermentable carbohydrates were incorporated into the diet.…”

Section: Introductionmentioning

confidence: 99%

“…Little is known about the effect of abrupt dietary transitions of forage-only diets. Regardless of the similarity in the nutrient composition of hays, differences in hindgut microbiota were seen after the abrupt hay change, suggesting a sensitive response of the hindgut microbiota [13]. To date, there is no information available on the effects of abrupt changes from grass (pasture) to a hay-only diet, and vice versa.…”

Section: Introductionmentioning

confidence: 99%

Abrupt dietary changes between grass and hay alter faecal microbiota of ponies

et al. 2020

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Abrupt dietary changes, as can be common when managing horses, may lead to compositional changes in gut microbiota, which may result in digestive or metabolic disturbances. The aim of this study was to describe and compare the faecal microbiota of ponies abruptly changed from pasture grazing ad libitum to a restricted hay-only diet and vice versa. The experiment consisted of two, 14-day periods. Faecal samples were collected on day 0 and days 1-3,7,14 after abrupt dietary change from grass to hay and from hay to grass. Microbial populations were characterised by sequencing the V3-V4 region of the 16S rRNA gene using the Illumina MiSeq platform, 4,777,315 sequences were obtained from 6 ponies. Further analyses were performed to characterise the microbiome as well as the relative abundance of microbiota present. The results of this study suggest that the faecal microbiota of mature ponies is highly diverse, and the relative abundances of individual taxa change in response to abrupt changes in diet. The faecal microbiota of ponies maintained on a restricted amount of hay-only was similar to that of the ponies fed solely grass ad libitum in terms of richness and phylogenetic diversity; however, it differed significantly in terms of the relative abundances at distinct taxonomic levels. Class Bacilli, order Lactobacillales, family Lactobacillaceae, and genus Lactobacillus were presented in increased relative abundance on day 2 after an abrupt dietary change from hay to grass compared to all other experimental days (P <0.05). Abrupt changes from grass to hay and vice versa affect the faecal microbial community structure; moreover, the order of dietary change appears to have a profound effect in the first few days following the transition. An abrupt dietary change from hay to grass may represent a higher risk for gut disturbances compared to abrupt change from grass to hay.

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Effect of yeast supplementation on hindgut microbiota and digestibility of horses subjected to an abrupt change of hays

Cited by 14 publications

References 31 publications

Factors Influencing Equine Gut Microbiota: Current Knowledge

Factors Influencing Equine Gut Microbiota: Current Knowledge

Yeast culture dietary supplementation modulates gut microbiota, growth and biochemical parameters of grass carp

Abrupt dietary changes between grass and hay alter faecal microbiota of ponies

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