Viscoelastic properties of the small intestinal and caecal contents of the chicken.
Br J Nutr
; 91(6): 867-72, 2004 Jun.
Article
em En
| MEDLINE
| ID: mdl-15182390
ABSTRACT
We measured the coefficients of viscosity, shear rates and shear stresses of chicken small intestinal and caecal contents, including solid particles, using a tube-flow viscometer. The coefficients of viscosity of chicken small intestinal and caecal contents were correlated negatively with their shear rates, a characteristic typical of non-Newtonian fluids. The coefficient of viscosity of the small intestinal contents was lower than that of the caecal contents at a shear rate of 1 s(-1). Chicken caecal contents were more viscous than pig caecal contents. The exponential relationship between shear stress and shear rate showed that chicken small intestinal and caecal contents had an apparent Herschel-Bulkley fluid nature. These results indicate that solid particles, including uric acid crystals, are mainly responsible for the viscosity of the digesta in the chicken.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ceco
/
Galinhas
/
Conteúdo Gastrointestinal
/
Intestino Delgado
Limite:
Animals
Idioma:
En
Revista:
Br J Nutr
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Japão