Digestibility and metabolizable energy of glycerine in dogs/ Digestibilidade e energia metabolizavel da glicerina em caes
Glycerin is a by-product originated from biodiesel production and it is an energetic ingredient of increasing possibility of use in diets of different species. This study aimed to evaluate the digestibility in dogs fed diets containing increasing levels of glycerol (0%, 3%, 6% and 9%). Diets were fe...
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Veröffentlicht in: | Ciência rural 2014-08, Vol.44 (8), p.1452 |
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Format: | Artikel |
Sprache: | spa |
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Zusammenfassung: | Glycerin is a by-product originated from biodiesel production and it is an energetic ingredient of increasing possibility of use in diets of different species. This study aimed to evaluate the digestibility in dogs fed diets containing increasing levels of glycerol (0%, 3%, 6% and 9%). Diets were fed to eight adult dogs, which were distributed in Latin square design (4x4). The glycerol addition in the diet increased the digestibility of dry matter, gross energy and metabolizable energy, without affecting the digestibility of crude protein and nitrogen free extract. However, resulted in lower digestibility of ether extract. Although the addition of glycerin has reduced the amount of fecal dry matter, had no effect on fecal score. Within the levels evaluated, the glycerin can be used as dietary energy source highly available for dogs. Key words: energy, glycerol, dog nutrition. A glicerina e um coproduto originado da producao de biodiesel, que apresenta possibilidade de uso como fonte energetica na nutricao animal. Objetivou-se avaliar os coeficientes de digestibilidade aparente (CDA) e a energia metabolizavel (EM) de dietas contendo glicerina, bem como a EM da glicerina em caes. Foram avaliadas quatro dietas contendo crescentes niveis de glicerina: 0%, 3%, 6% e 9%. As dietas foram fornecidas a oito caes adultos, os quais foram distribuidos em delineamento Quadrado Latino duplo (4x4). A adicao de glicerina aumentou os CDA da materia seca, energia bruta e a EM, sem afetar os CDA da proteina bruta e dos extrativos nao nitrogenados da dieta. Entretanto, resultou em reducao no CDA do extrato etereo da dieta. Embora a adicao de glicerina tenha reduzido o teor de materia seca fecal, nao houve efeito sobre o escore das fezes. Dentro dos niveis avaliados, a glicerina pode ser utilizada na dieta como fonte energetica altamente disponivel para caes. Palavras-chave: energia, glicerol, nutricao de caes. |
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ISSN: | 0103-8478 |
DOI: | 10.1590/0103-8478cr20120122 |