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Effect of vitamin C and tryptophan on performance, behavior and physiological indicators of broiler chickens

Grant number: 13/04524-4
Support type:Scholarships in Brazil - Master
Effective date (Start): June 01, 2013
Effective date (End): February 28, 2015
Field of knowledge:Agronomical Sciences - Animal Husbandry - Animal Production
Principal researcher:José Roberto Sartori
Grantee:Monica Megumi Aoyagi
Home Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil


The objective of this project is to evaluate the effect of vitamin C levels and tryptophan on performance, physiological and behavioral indicators of broilers reared on high density. An experiment will be conducted during the period 1 to 42 days old. The experimental design is a completely randomized factorial 2 X 5 + 1 (vitamin C levels: 0 and 250 mg / kg diet X tryptophan levels: 100, 125, 150, 175 and 200% + negative control diet without supplementation of vitamin C + 100% of the recommendation of tryptophan, associated to low stocking density) with eleven treatments and six replications. Diets will be formulated based on corn and soybean meal, according to the recommendations of Rostagno et al. (2011) in four phases: pre-starter, starter, grower and finisher. The performance variables are analyzed: weight gain, feed intake, feed efficiency, viability and productive efficiency. As physiological indicators of stress will be evaluated: serum glucose, heterophil: lymphocyte. As health parameters of birds will be evaluated antibody titers against Newcastle disease and behavioral variables will be evaluated according to an ethogram. (AU)

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
AOYAGI, Monica Megumi. Efeito da vitamina C e triptofano no desempenho, comportamento e parâmetros de estresse de frangos de corte. 2014. 88 f. Master's Dissertation - Universidade Estadual Paulista "Júlio de Mesquita Filho" Faculdade de Medicina Veterinária e Zootecnia..

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