Effect of feeding whole linseed as a source of polyunsaturated fatty acids on performance and egg characteristics of laying hens kept at high ambient temperature
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Data
2013-01-01
Autores
Ahmad, S.
Ahsan-ul-Haq
Yousaf, M.
Kamran, Z.
Ata-ur-Rehman
Sohail, M. U.
Shahid-ur-Rahman
Título da Revista
ISSN da Revista
Título de Volume
Editor
Facta-fundacio Arnco Ciência Tecnologia Avicolas
Resumo
The present study was conducted to evaluate the effects of feeding whole linseed on the laying performance and egg characteristics in laying hens kept at high ambient environmental temperatures (average 34 degrees C; the diurnal temperature range 26 degrees C to 41 degrees C). Two hundred and forty 38-wk-old white Leghorn laying hens were fed diets containing 0, 5, 10 or 15% whole linseed (as a source of n-3 polyunsaturated fatty acids) for a period of 12 weeks. Egg production was recorded daily, while feed intake and egg characteristics were monitored on weekly basis. The results of the study demonstrated that egg production and feed intake decreased, while feed conversion ratio (FCR) per dozen of eggs increased (p <= 0.05) with increasing dietary linseed levels. Egg weight, yolk weight, albumen height, eggshell weight, and eggshell thickness were not influenced (p > 0.05) by linseed levels in the diets offered to the laying hens. The results of the present trial suggest that feeding linseed to the laying hens in hot climates has no detrimental effects on egg characteristics, but has suppressive effects on egg production, feed intake and feed efficiency of laying hens.
Descrição
Palavras-chave
Linseed, n-3 PUFA, laying hens, hot climate, performance
Como citar
Brazilian Journal of Poultry Science. Campinas: Facta-fundacio Arnco Ciencia Tecnologia Avicolas, v. 15, n. 1, p. 21-25, 2013.