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Veterinary Summit 2016
November 14-16, 2016
Volume 7 Issue 7(Suppl) J Vet Sci Technol
ISSN: 2157-7579 JVST, an open access journal
conferenceseries .com
November 14-16, 2016 Atlanta, USA
6th Global Veterinary Summit
Opoola Emmanuel et al., J Vet Sci Technol 2016, 7:7(Suppl)
Evaluation of optimum dietary tryptophan requirement for broiler chicks reared in the cold season
under tropical environment
Opoola Emmanuel, Ogundipe S O, Bawa G S and Onimisi P A
Ahmadu Bello University, Nigeria
It has been suggested that the amount of nutrients consumed, environmental temperature and season may affect nutrient
requirements of animals, interaction between broilers and season of rearing remains an important problem especially under
the tropical environment. The experiment was conducted with broiler chicks from 1 to 28 days of age to determine the optimum
tryptophan requirement in the cold season under tropical environment. A total of 285 day old chicks were used in this experiment.
The mean minimum daily temperature was from 14-24oC. The experimental design was a completely randomized design,
consisting of five treatments each with three replicates. There were five experimental diets with graded levels of supplemental
tryptophan at 0.00, 0.04, 0.08, 0.12 and 0.16% to give total dietary tryptophan levels of 0.15, 0.19, 0.23, 0.27 and 0.31% respectively.
The basal diet was based on corn (50.66%), groundnut cake (25%) and fishmeal (12.95%), 23% CP and 3008 Kcal/kg of ME.
Dietary treatment had significant (p<0.05) effects on final weight, weight gain, feed intake and feed conversion ratio. Chicks fed
0.24% dietary tryptophan gave the highest final body weight, average daily gain and better feed conversion ratio. Chicks fed 0.15%
total dietary tryptophan had significantly (p<0.05) higher value for feed intake (1,789.90 g) and significantly lower weight gain
(1,021.00 g). Based on this study, overall results suggest that broiler chicks need approximately 0.24% dietary tryptophan between
1-28 days of age.
Biography
Opoola Emmanuel has obtained his BSc, MSc in Poultry Production from Ahmadu Bello University and currently pursuing PhD in Poultry Production from same
university, Nigeria. His research interest is on the nutrition and digestive physiology of farm animals, particularly poultry. He has published more the 10 papers
in reputed journals. He is a Member of Nigerian Society for Animal Production (NSAP), Animal Science Association of Nigeria (ASAN) and a Registered Animal
Scientist (RAS) in Nigeria.