Effects of Saccharomyces cerevisiae cell wall addition on feed digestibility, fecal fermentation and microbiota and immunological parameters in adult cats

Author(s):Show less -

de Oliveira Matheus, Laura Fantucci ^[1] ; Risolia, Larissa Wunsche ^[1] ; Ernandes, Mariane Ceschin ^[1] ; de Souza, Johnny Maciel ^[1] ; Oba, Patricia Massae ^[2] ; Annibale Vendramini, Thiago Henrique ^[1] ; Pedrinelli, Vivian ^[1] ; Henriquez, Lucas Ben Fiuza ^[1] ; Massoco, Cristina de Oliveira ^[1] ; Ferreira Pontieri, Cristiana Fonseca ^[3] ; Brunetto, Marcio Antonio ^[1]

Affiliation

^[1] Univ Sao Paulo, Sch Vet Med & Anim Sci, 87 Prof Orlando Marques Paiva Ave, BR-05508270 Sao Paulo, SP - Brazil

^[2] Univ Illinois, Dept Anim Sci, 120 7W Gregory Dr, Urbana, IL 61801 - USA

^[3] Grandfood Ind & Comercio LTDA, Km 204, BR-13590000 Dourado, SP - Brazil

• Document type: Journal article
• Source: BMC Veterinary Research; v. 17, n. 1 NOV 16 2021.
• Web of Science Citations: 0

Abstract

Background This study aimed to evaluate the effects of increasing dosages of a commercial product composed by Saccharomyces cerevisiae yeast (YAM), with active metabolites, which are beta glucans, nucleotides, organic acids, polyphenols, amino acids, vitamins and minerals (Original XPC, Diamond V, IOWA, USA) added to a commercially available dry cat food. Apparent digestibility of dietary nutrients, fecal microbiota, fecal fermentation products and immunological parameters were evaluated. Twenty-seven healthy cats of mixed sexes, with a mean body weight of 4.19 +/- 0.83 kg and a mean age of 9.44 +/- 5.35 years were distributed by age in an unbalanced randomized block design, consisting of three experimental treatments: CD (control diet), YAM 0.3 (control diet with 0.3% yeast with active metabolites) and YAM 0.6 (control diet with 0.6% yeast with active metabolites). Results The inclusion of the additive elevated the apparent digestibility of crude fiber (p = 0.013) and ash (p < 0.001) without interfering feed consumption, fecal production and fecal characteristics. Regarding fermentation products present in the feces, prebiotic inclusion increased lactic acid concentration (p = 0.004) while reducing isovaleric acid (p = 0.014), only in the treatment YAM 0.3. No differences were noticed on biogenic amines (BA), fecal pH, ammonia concentration, total and individuals short-chain fatty acids (SCFA) and total and individuals branched-chain fatty acids (BCFA) (except isovaleric acid in YAM 0.3). As regards to fecal microbiota, prebiotic inclusion has resulted in the reduction of Clostridium perfringens (p = 0.023). No differences were found in the immunological parameters evaluated. Conclusion It can be concluded that the additive, at the levels of inclusion assessed shows prebiotic potential and it has effects on fecal fermentation products and microbiota without interfering on crude protein and dry matter digestibility. More studies evaluating grater inclusion levels of the prebiotic are necessary to determine optimal concentration. (AU)

• FAPESP's process: 15/03994-2 - Evaluation of gastrointestinal, immunological and fermentation effects of yeast (Saccharomyces cerevisiea) inactivated and culture medium enriched in diets for adult cats
• Grantee: Laura Fantucci de Oliveira Matheus
• Support Opportunities: Scholarships in Brazil - Master