Farelo de glúten de milho 21 na alimentação de cães adultos
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Data
2008-08-29
Autores
Kawauchi, Iris Mayumi [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
O presente estudo teve por objetivos determinar, por meio dos métodos de substituição e de regressão, a digestibilidade dos nutrientes e a energia metabolizável do farelo de glúten de milho 21 (FGM 21), comparar estas metodologias experimentais e estabelecer o teor adequado de inclusão do ingrediente em dietas extrusadas para cães adultos. Foram realizados dois ensaios de metabolismo utilizando o método de coleta total de fezes e urina. No primeiro ensaio, seis cães adultos foram alimentados com dieta isenta de FGM 21 (basal) e outros seis com dieta teste (30% FGM 21 + 70% dieta basal). Para o segundo ensaio, foram formuladas dietas contendo, com base na matéria natural, zero (basal), 7%, 14% e 21% de FGM 21. Vinte e quatro cães adultos foram distribuídos em delineamento em blocos casualizados, com dois blocos repetidos no tempo, sendo 4 tratamentos e 6 repetições por dieta. Os coeficientes de digestibilidade aparente do FGM 21 para cães foram: 52,73% para MS, 52,41% para MO, 68,84% para PB, 74,38% para EEA, -36,40% para FDT, 99,80% para amido e 54,46% para EB. Sua energia metabolizável foi de 2023 kcal/kg MS. A utilização de FGM 21 reduziu a digestibilidade da MS, MO, EB e EM das dietas (p<0,05), porém, não prejudicou de forma pronunciada a digestibilidade da PB, EEA e amido (p>0,05) quando utilizada inclusão de 14%. A fibra dietética total do FGM 21 por ser de baixa solubilidade e fermentabilidade pode justificar a redução na digestibilidade e na EM das dietas. As fezes dos cães alimentados com dietas contendo FGM 21 foram pouco afetadas, porém, houve aumento na quantidade produzida. A digestibilidade da PB, EEA, amido e a EM das dietas foi semelhante quando determinada pelos métodos de substituição e de regressão. MS, MO e EB apresentaram coeficientes de digestibilidade distintos em função do método utilizado. Concluiu-se que o FGM 21 é um ingrediente de...
The present study aimed to determine, with substitution and regression methods, the digestibility and metabolizable energy of corn gluten feed (CGF), compare the methods and establish the appropriate inclusion of this ingredient in extruded diets for dogs. Two metabolism trials were performed using total feces and urine collection method. In the first trial, 6 adult dogs were fed with a basal diet, without CGF, and other 6 dogs were fed with test diet (30% of CGF + 70% of the basal diet). In the second trial, diets containing 0%, 7%, 14% and 21% of CGF were formulated, as fed basis. 24 adult dogs were distributed in a randomized blocks design, with two blocks repeated in time, being four treatments, with 6 replications each. The coefficients of apparent digestibility of CGF for dogs were: 52.73% for DM, 52.41% for OM, 68.84% for CP, 74.38% for AEE, -36.40% for TDF, 99.80% for starch and 54.46% for GE. The metabolizable energy was 2023 kcal/kg on DM basis. The use of CGF reduced the digestibility of DM, OM, GE and ME of diets (p<0.05) however the digestibility of CP, AEE and starch (p>0.05) were not very affected when inclusion of 14% was used. The total dietary fiber of CGF has low solubility and fermentability what can justify the reduction in the digestibility and ME of diets. The feces of the dogs fed with diets containing CGF have been little affected, however had a increase in the produced amount. The digestibility of CP, AEE, starch and ME of the diets was similar when determined by the regression and substitution methods. DM, OM and GE presented divergent digestibility coefficients depending on the used method. It was concluded that CGF is an ingredient of low energy value, with potential for use in foods for dogs with special demands and the inclusion of 14% provides reduced interference on digestibility of foods to adult dogs. The method used in the food study for dogs is an important factor and must be considered.
The present study aimed to determine, with substitution and regression methods, the digestibility and metabolizable energy of corn gluten feed (CGF), compare the methods and establish the appropriate inclusion of this ingredient in extruded diets for dogs. Two metabolism trials were performed using total feces and urine collection method. In the first trial, 6 adult dogs were fed with a basal diet, without CGF, and other 6 dogs were fed with test diet (30% of CGF + 70% of the basal diet). In the second trial, diets containing 0%, 7%, 14% and 21% of CGF were formulated, as fed basis. 24 adult dogs were distributed in a randomized blocks design, with two blocks repeated in time, being four treatments, with 6 replications each. The coefficients of apparent digestibility of CGF for dogs were: 52.73% for DM, 52.41% for OM, 68.84% for CP, 74.38% for AEE, -36.40% for TDF, 99.80% for starch and 54.46% for GE. The metabolizable energy was 2023 kcal/kg on DM basis. The use of CGF reduced the digestibility of DM, OM, GE and ME of diets (p<0.05) however the digestibility of CP, AEE and starch (p>0.05) were not very affected when inclusion of 14% was used. The total dietary fiber of CGF has low solubility and fermentability what can justify the reduction in the digestibility and ME of diets. The feces of the dogs fed with diets containing CGF have been little affected, however had a increase in the produced amount. The digestibility of CP, AEE, starch and ME of the diets was similar when determined by the regression and substitution methods. DM, OM and GE presented divergent digestibility coefficients depending on the used method. It was concluded that CGF is an ingredient of low energy value, with potential for use in foods for dogs with special demands and the inclusion of 14% provides reduced interference on digestibility of foods to adult dogs. The method used in the food study for dogs is an important factor and must be considered.
Descrição
Palavras-chave
Cão, Animais de companhia, Digestibilidade, Energia metabolizável, Fibra dietética, Ingrediente, Dietary fiber, Digestibility, Ingredient, Metabolizable energy, Pets
Como citar
KAWAUCHI, Iris Mayumi. Farelo de glúten de milho 21 na alimentação de cães adultos. 2008. ix, 71 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, 2008.