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- Title
Effects of Malt Extract on Nutritional and Functional Aspects in Healthy Adult Dogs.
- Authors
Henríquez, Lucas Ben Fiuza; Rentas, Mariana Fragoso; Zafalon, Rafael Vessecchi Amorim; Perini, Mariana Pamplona; Marchi, Pedro Henrique; Rodrigues, Roberta Bueno Ayres; Vendramini, Thiago Henrique Annibale; Gomes, Cristina Oliveira Massoco Salles; Balieiro, Julio Cesar de Carvalho; Brunetto, Marcio Antonio
- Abstract
The co-product malt extract has prebiotic constituents, such as sugar and beta-glucans. Therefore, the aim of this study was to evaluate how the malt extract inclusion in healthy dogs' diet effects digestibility, fecal microbiota, fermentative metabolites, and immunity. Twelve healthy two-year-old dogs were used, randomly divided into two groups according to food consumed: control treatment (CT), without the addition of malt extract, and malt treatment (MT), with 1.0% malt extract inclusion (natural matter) during two experimental periods. The results obtained were analyzed by the computer software Statistical Analysis System (SAS, version 9.4). Values of p < 0.05 were considered significant. No differences were observed in the apparent digestibility of nutrients and fermentation metabolites. However, a reduction was observed for metabolizable energy (p = 0.0004) in the malt diet. The predominant phylum for both treatments was Firmicutes (p < 0.0001), the mean of which was higher in MT dogs. The bacterial groups belonging to the cluster Clostridium XIVa and genus Faecalibacterium, which are responsible for producing short-chain fatty acids, were higher after MT consumption (p < 0.0001). On the other hand, MT dogs presented a reduction in the genus Bifidobacterium (p < 0.0001), which is responsible for producing lactic acid. There was also an increase in lymphocyte proliferation index (p = 0.0071) and rate (p = 0.0025) and in CD4+:CD8+ lymphocyte ratio (p = 0.0098) after MT consumption. Thus, the inclusion of 1.0% of malt extract in the diet had a prebiotic effect in healthy adult dogs.
- Subjects
METABOLIZABLE energy values; SHORT-chain fatty acids; MALT; MALTING; DOGS; METALLOTHIONEIN; FECAL contamination; BETA-glucans; OXYGEN consumption
- Publication
Fermentation (Basel), 2023, Vol 9, Issue 10, p870
- ISSN
2311-5637
- Publication type
Article
- DOI
10.3390/fermentation9100870