Supplementation of glutamine and vitamin E on the morphometry of the intestinal mucosa in broiler chickens.
Poult Sci
; 86(3): 488-95, 2007 Mar.
Article
em En
| MEDLINE
| ID: mdl-17297160
ABSTRACT
The objective of this experiment was to evaluate the influence of Gln and vitamin E (VE) supplementation in the diet of broiler chickens (Cobb-Vantress) on the morphometry of the intestinal mucosa. The design was completely randomized in a 2 x 3 (VE x periods of administering Gln) factorial arrangement. The levels of VE used were 10 and 500 mg/kg of diet and 3 periods of administering (1%) Gln-supplemented starter diet (for the first 7 or 14 d of life or for no added Gln), totaling 6 treatments with 5 replicates of 50 birds per experimental unit. In the growth period (d 22 to 41 posthatch), the treatments consisted only in the respective levels of VE. On d 7, 14, 21, and 41 posthatch, 2 birds per replicate were killed, and samples of the duodenum, jejunum, and ileum were subsequently removed, fixed in Bouin solution, and later embedded in paraffin and stained with hematoxylin-eosin. The parameters analyzed were villus height and crypt depth. An ANOVA was applied to the obtained data, and the means were compared using Tukey's test (5% significance level). Greater development was observed in the duodenum, followed by the jejunum and ileum. On 41 d of life, diets with 10 mg of VE/kg supplemented with Gln (for the first 7 d of life) provided better development of the intestinal mucosa in broiler chickens.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vitamina E
/
Galinhas
/
Glutamina
/
Mucosa Intestinal
Limite:
Animals
Idioma:
En
Revista:
Poult Sci
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Brasil