The effect of age and carbohydrate and protein sources on digestibility, fecal microbiota, fermentation products, fecal IgA, and immunological blood parameters in dogs

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dc.creatorAna Paula Judice Maria
dc.creatorLarissa Ayane
dc.creatorThaila Cristina Putarov
dc.creatorBruna Agy Loureiro
dc.creatorBruna Ponciano Neto
dc.creatorMariana Fröner Casagrande
dc.creatorMárcia de Oliveira Sampaio Gomes
dc.creatorMaria Beatriz de Abreu Glória
dc.creatorAulus Cavalieri Carciofi
dc.date.accessioned2022-05-11T00:54:19Z
dc.date.accessioned2025-09-09T00:54:08Z
dc.date.available2022-05-11T00:54:19Z
dc.date.issued2017-06
dc.identifier.doi10.2527/jas.2016.1302
dc.identifier.issn1525-3163
dc.identifier.urihttps://hdl.handle.net/1843/41535
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Animal Science
dc.rightsAcesso Restrito
dc.subjectMedicina Veterinária
dc.subjectCarboidratos
dc.subjectCães
dc.subject.otherDogs
dc.subject.otherProtein
dc.subject.otherCarbohydrate
dc.titleThe effect of age and carbohydrate and protein sources on digestibility, fecal microbiota, fermentation products, fecal IgA, and immunological blood parameters in dogs
dc.typeArtigo de periódico
local.citation.epage2466
local.citation.issue6
local.citation.spage2452
local.citation.volume95
local.description.resumoThe present study compared the effects of diets formulated with fibers of different fermentability and protein sources of animal or vegetable origins on old and adult dogs. The experiment was organized in a 3 (diets) × 2 (ages) factorial arrangement, totaling 6 treatments. Thirty-six Beagle dogs were used (18 old dogs [10.2 ± 1.0 yr] and 18 young adult dogs [2.6 ± 0.9 yr]), with 6 dogs per treatment. Three diets with similar compositions were used: a nonfermentable insoluble fiber source (sugarcane fiber) and chicken byproduct meal (nonfermentable fiber [NFF] diet), a fermentable fiber source (beet pulp) and chicken byproduct meal (fermentable fiber [FF] diet), and soybean meal as a protein and fiber source (soybean meal [SM] diet). Data were evaluated using the MIXED procedure and considering the effects and interactions of block, animal, diets, and age. Means were compared using Tukey's test (P < 0.05). Age × diet interactions were evaluated when P < 0.1. Old dogs had a reduced coefficient of total tract apparent digestibility of DM, which was explained by the age and diet interaction of CP and fat digestibility that was lower for old than for adult dogs fed the FF diet (P < 0.05). The SM diet obtained higher DM, OM, CP, and fiber digestibility compared with the NFF diet (P < 0.05). The feces of dogs fed the NFF diet had increased DM content (P < 0.05). The short-chain fatty acids (SCFA) did not change by age group and were higher for dogs fed the FF and SM diets compared with dogs fed the NFF diet (P < 0.05). An age and diet interaction was observed for lactate and was increased in the feces of old dogs compared with adult dogs fed the FF diet (P < 0.05). Fecal putrescine, cadaverine, and spermine were increased for old dogs compared with adult dogs (P < 0.05), and the spermidine fecal concentration was increased for dogs fed the SM diet regardless of age (P < 0.05). Old dogs had reduced peripheral T and B lymphocytes (P < 0.05). An age and diet interaction was observed for fecal IgA (P < 0.001). Adult dogs fed the SM diet had increased IgA in feces compared with animals fed the NFF and FF diets (P < 0.05). However, for old dogs, both the FF and SM diets induced increased IgA compared with the NFF diet (P < 0.05). In conclusion, beet pulp may reduce digestibility and induce increased lactate in the feces of old dogs. The protein and oligosaccharides of soybean meal are digestible by dogs, induce the production of SCFA and spermidine, and increase fecal IgA. Old dogs had increased putrecine, cadaverine, and spermine fecal concentrations.
local.publisher.countryBrasil
local.publisher.departmentFAR - DEPARTAMENTO DE ALIMENTOS
local.publisher.departmentFAR - DEPARTAMENTO DE PRODUTOS FARMACÊUTICOS
local.publisher.initialsUFMG
local.url.externahttps://academic.oup.com/jas/article-abstract/95/6/2452/4702405

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