Evaluation of the performance and growth of two generations of Nile Tilapia (Oreochromis niloticus) of Genomar supreme strain

• Grant number: 17/01420-4
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2017
• End date: March 31, 2019
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Production
• Principal Investigator: Vander Bruno dos Santos
• Grantee: Diego Azevedo Teixeira
• Host Institution: Instituto de Pesca. Agência Paulista de Tecnologia dos Agronegócios (APTA). Secretaria de Agricultura e Abastecimento (São Paulo - Estado). São Paulo , SP, Brazil

Abstract

The objective of this study is evaluate the growth of two generations of the Nile tilapia strain, Genomar Supreme, generation G20 and G25. The experiment will be carried out in Polo Alta Sorocabana - APTA, in Presidente Prudente - SP, located in 22º11 'south latitude, 51º23' west longitude and 458.3 meters. Tilapia fingerlings, male population, of approximately 3 g will be grown in water recirculation systems containing 0,25 m³ tanks, density of 80 fish / m³, with four replicates (tanks). The fish will be fed three times daily with the same specific feed for each particular growth phase according to the biomass of each tank. During growth, eight fish from each tank will be weighed and measured at the beginning and days 30th, 60th, 120th and 150th of culture. They will be determined survival, weight gain, feed conversion and homogeneity of batch in each period. Nonlinear growth models will be adjusted for the determination and comparison of growth rates. A completely randomized experimental design will be used, in factorial scheme (2x6) with 2 treatments, 6 periods and four replicates (tanks). The study of the growth will be conducted by adjusting all data on fish weight for the exponential model given by y= Aekx, and Gompertz model given by y = Aexp(-Be-Kx). In addition it will be determined the absolute and relative growth rates and weight and age at inflection. The curve parameters for each generation will be compared for their confidence intervals at 95% probability. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DOS SANTOS, VANDER BRUNO; GOMES, VICTOR JOSE; TEIXEIRA, DIEGO AZEVEDO; DE ALMEIDA, MARCUS VINICIUS; SILVA, VINICIUS VASCONCELOS; SALOMAO, RONDINELLE ARTUR SIMOES. Evaluating the growth of genetically improved tilapia Oreochromis niloticus reared at different temperatures. ANNALS OF ANIMAL SCIENCE, v. 22, n. 4, p. 8-pg., 2022-05-16. (16/13332-0, 17/00880-1, 17/01420-4)

VANDER BRUNO DOS SANTOS; DIEGO AZEVEDO TEIXEIRA; VICTOR JOSÉ GOMES; VINÍCIUS VASCONCELOS SILVA; MARCOS VINICIUS DE ALMEIDA; RONDINELLE ARTHUR SIMÕES SALOMÃO. Comparative growth and performance of two generations of tilapia (Oreochromis niloticus). Acta Sci., Anim. Sci., v. 44, 2022-08-12. (17/01420-4)