Efeitos da parede de levedura em dieta úmida na microbiota fecal, na produção de gás e na morfologia intestinal de gatos adultos

Aquino, Adriana Augusto; Saad, Flávia Maria de Oliveira Borges; Santos, João Paulo Fernandes; Leite, Carlos Artur Lopes; Sampaio, Gabriela Rodrigues; Feliciano, Marcus Antônio Rossi

doi:10.1590/s0102-09352013000600013

Cited by 3 publications

(5 citation statements)

References 14 publications

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“…In the context of this study, it was observed that there was mod- , GOS and YCW); in those studies, the authors did not find a reduction in potentially pathogenic bacteria (Aquino et al, 2013;Kanakupt et al, 2011;Strickling et al, 2000;Swanson, Grieshop, Flickinger, Bauer, Healy, et al, 2002).…”

Section: Discussionmentioning

confidence: 51%

“…Barry et al., found a reduction in E. coli in cat feed supplemented with 4% FOS. However, these findings are in contrast with studies conducted in dogs and cats fed different prebiotics (FOS, MOS, xylo‐oligosaccharides [XOS], GOS and YCW); in those studies, the authors did not find a reduction in potentially pathogenic bacteria (Aquino et al., ; Kanakupt et al., ; Middelbos, Fastinger, & Fahey, ; Strickling et al., ; Swanson, Grieshop, Flickinger, Bauer, Healy, et al, ).…”

Section: Discussionmentioning

confidence: 71%

“…Studies evaluating the inclusion of yeast cell wall (YCW) in foods for pets have been mainly concentrated in dogs (Strickling, Harmon, Dawson, & Gross, ), in which modulation of faecal microbiota, fermentation products, such as SCFA, and nutrient digestibility have been demonstrated. In felines, studies are scarce, although some do exist (Aquino et al., , ). In the existing studies, however, YCW was included in a wet mixture that was added to a extruded diet to make the experimental diets, thus changing its dietary characteristics; moreover, the evaluation of fermentation products did not include BCFA or BAs, only products from the metabolism of carbohydrates.…”

Section: Introductionmentioning

confidence: 99%

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Effects of dietary yeast cell wall on faecal bacteria and fermentation products in adult cats

Santos

Aquino

Glória

et al. 2018

Animal Physiology Nutrition

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This study evaluated the effects of increasing concentrations of spray-dried yeast cell wall (YCW) in diets for healthy adult cats on apparent nutrient digestibility and on bacterial composition and fermentation products in the stool. Fourteen cats with an average weight of 4.40 ± 1.05 kg and an average age of 6.2 ± 0.54 years were used and assigned to treatments in an unbalanced randomized block design (by experimental period) with two blocks and three or four cats per diet in each block. Treatments included: control (0% YCW), 0.2% YCW, 0.4% YCW and 0.6% YCW, totalling seven animals per experimental diet. We found that YCW did not affect body weight, nutrient and food intake, faecal production, faecal score, faecal pH or urine output (p > .05). Regarding faecal bacteria, we observed a linear reduction in Clostridium perfringens, a quadratic reduction in Escherichia coli, and linear increases in Bifidobacterium spp. and Lactobacillus spp. (p < .05) with the inclusion of YCW. Regarding the faecal short-chain fatty acid profile, butyrate, valerate, total biogenic amines, putrescine, cadaverine and histamine increased linearly (p < .05) with the inclusion of YCW. It was concluded that in healthy adult cats, consumption of YCW modulates the faecal bacterial populations, with an increased presence of beneficial bacteria and a reduction in some potentially pathogenic bacteria. It was concluded that YCW modulated the levels of fermentation products. There was an increase in fermentation products coming from carbohydrate metabolism, an important effect that can potentially benefit the intestinal health of cats. The consumption of YCW also increased the fermentation of nitrogen compounds, which have not yet been defined as deleterious or beneficial. The fermentability of carbohydrates and nitrogen compounds may be associated. Therefore, YCW may cause rapid fermentation of both classes of compounds by enhancing the fermentability of one class.

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Section: Discussionmentioning

confidence: 51%

Section: Discussionmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

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Effects of dietary yeast cell wall on faecal bacteria and fermentation products in adult cats

Santos

Aquino

Glória

et al. 2018

Animal Physiology Nutrition

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“…Supplementation with a microencapsulation of probiotic strains which include S. cerevisiae for 20 days resulted in fecal Lactobacillus count increase, but the effect of yeast cannot be isolated in this study (113). Aquino et al (110) did not find differences in lactic acid bacteria counts nor clostridium-reductor when substituting up to 0.6% of the wet diet with yeast extract in cats. There were no differences in cats' fecal pH when SCFP or yeast extract was supplemented (107, 109).…”

Section: Ycwcontrasting

confidence: 52%

Potential benefits of yeast Saccharomyces and their derivatives in dogs and cats: a review

Maturana,

Castillejos,

Martin-Orue

et al. 2023

Front. Vet. Sci.

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Yeast Saccharomyces and its derivatives have been largely used in livestock and poultry nutrition for their potential positive impact on growth, performance, and general health. Originally included in animal diets as a source of protein, yeasts can also offer a wide range of by-products with interesting bioactive compounds that would confer uses beyond nutrition. Although its supplementation in livestock, poultry and even in humans is well documented, the available body of literature on the use of yeast and its derivatives in companion animals’ food, mainly dogs and cats’ diets, is still developing. Despite this, gut microbiota modulation, immune system enhancement or decreasing of potentially pathogenic microorganisms have been reported in pets when using these products, highlighting their possible role as probiotics, prebiotics, and postbiotics. This review attempts to provide the reader with a comprehensive on the effects of Saccharomyces and its derivatives in pets and the possible mechanisms that confer their functional properties.

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“…In addition some authors (Freimund et al 2005;Pinto et al 2015) reported that the chemical composition of the yeast cell walls, in terms of ether extract, crude protein and crude fibre, is highly affected by the starting materials but also by the production process. The differences in nutrient composition noticeably affect the functional effect when cat diets are supplemented with yeast cell wall (Aquino et al 2013;Santos et al 2018). As a consequence, it is quite difficult to predict the real effects of a new functional product and to compare the results of different studies using supplementations based on yeast cell wall, because their availability and fermentability in the large intestine could differ a lot.…”

Section: Discussionmentioning

confidence: 99%

Fermentability characteristics of different Saccharomyces cerevisiae cell wall using cat faeces as inoculum

Calabrò

Musco

Roberti³

et al. 2020

Italian Journal of Animal Science

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Yeast cell wall are a source of prebiotics in animal nutrition, able to improve microbial function in the large intestine. The purpose of this paper was to compare the fermentability of six Saccharomyces cerevisiae (SC) cell wall obtained from three production processes (alcoholic, brewers and bakers). For each production process the two aliquots characterised by the highest the lowest carbohydrate levels were selected. In order to perform the in vitro trial, each SC substrate was incubated at 39 C under anaerobic condition for 72 h, using cat faecal inoculum. The results showed that the production processes did not affect organic matter disappearance, while significantly (p < .01) influenced cumulative volume of gas which appeared the lowest for alcoholic substrates. The alcoholic SC substrate showed significantly highest (p < .01) fermentation rate. All SCFA were affected by the production processes (p < .01). In particular, brewers substrates showed the highest acetate and butyrate production, while the fermentation of SC cell wall obtained by bakers showed the highest production of valerate, iso-butyrate and iso-valerate. Considering the high fermentability and acetate and butyrate production, the SC cell wall obtained by brewers seem more suitable to be used as prebiotic in cat diet. The bakers extract seems less advisable, due to its less fermentability at which corresponded the highest production of gas and iso-butyrate and iso-valerate, which are considered the less desirable end-products. The study underlines that it is necessary to evaluate the fermentation characteristics of these ingredients before their use in diet formulation as source of prebiotics. HIGHLIGHTS The production process affects the in vitro fermentation parameters differently from the carbohydrate's concentration. The production processes significantly influenced cumulative volume of gas and all short chain fatty acids production. The SC cell walls obtained by brewers seem more suitable to be used as prebiotic in cat diet and the bakers extract seems the less advisable.

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Efeitos da parede de levedura em dieta úmida na microbiota fecal, na produção de gás e na morfologia intestinal de gatos adultos

Cited by 3 publications

References 14 publications

Effects of dietary yeast cell wall on faecal bacteria and fermentation products in adult cats

Effects of dietary yeast cell wall on faecal bacteria and fermentation products in adult cats

Potential benefits of yeast Saccharomyces and their derivatives in dogs and cats: a review

Fermentability characteristics of different Saccharomyces cerevisiae cell wall using cat faeces as inoculum

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