Influence of glutamine and vitamin E on the performance and the immune responses of broiler chickens



Document title: Influence of glutamine and vitamin E on the performance and the immune responses of broiler chickens
Journal: Revista brasileira de ciencia avicola
Database: PERIÓDICA
System number: 000279333
ISSN: 1516-635X
Authors: 1



Institutions: 1Universidade Estadual de Maringa, Maringa, Parana. Brasil
Year:
Season: Oct-Dic
Volumen: 8
Number: 4
Pages: 243-249
Country: Brasil
Language: Inglés
Document type: Nota breve o noticia
Approach: Experimental
English abstract This study aimed at evaluating the influence of Glutamine (Gln) and Vitamin E (VE) supplementation on the performance and immune response of broilers. A completely randomizes experimental design with a 2 x 3 (VE x Gln) factorial arrangement was used. VE was supplemented at 10 and 500 mg/kg feed, with or without Gln (1%) addition, and two periods of supplementation in the starter diets (1-7 and 1-14 days of age), with five replicates of 50 birds each. The analyzed parameters were: live performance (weight gain, feed intake, and feed conversion ratio); relative weights of the spleen, bursa, and thymus; antibody titers (with sheep red blood cells suspension – SRBC) and cutaneous basophilic hypersensivity (CBH). Data were submitted to the analysis of variance, and means were compared using the test of Tukey. Treatments did not influence (P>0.05) live performance parameters or antibody titers. VE reduced (P=0.01) CBH, with the level of 10 mg VE/kg allowing higher cell proliferation as compared to 500 mg VE/kg. As to lymphoid organs, only the spleen was affected (P=0.035) by Gln, which resulted in higher spleen relative weight when fed during the first week of age. Results showed that 10 mg VE/kg with Gln (1-7 days) promoted better immune responses
Disciplines: Medicina veterinaria y zootecnia
Keyword: Aves de corral,
Nutrición animal,
Pollos de engorda,
Suplementación,
Glutamina,
Vitamina E,
Inmunología,
Anticuerpos
Keyword: Veterinary medicine and animal husbandry,
Animal nutrition,
Poultry,
Broilers,
Supplementation,
Glutamine,
Vitamin E,
Immunology,
Antibodies
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