Genetic merit evaluation of second-generation Nile tilapia (GIFT)
DOI:
https://doi.org/10.19136/ta.a2n2.5733Keywords:
Oreochromis niloticus, genetic parameters, live-weightAbstract
The present study aimed to determine the genetic value of Nile tilapia GIFT in its second generation. The data evaluated corresponded to 19 families obtained from the genetic improvement program of tilapia in Cuba. An evaluation was performed on the entire population to determine each individual's genetic value, classifying it into high, medium, and low. The results obtained for high genetic merit were 362 and 322 grams for males and females, respectively, demonstrating the superiority of males over females for the live weight characteristic. The genetic parameters and variance components were estimated: additive, residual and phenotypic variance. As a fundamental element, heritability was estimated, characterized by being classified as high by obtaining a value of 0.49. The evaluation of genetic merit in genetic improvement programs represents a high potential to improve productivity through genetic selection.
Downloads
References
Barrueta D (2021). Mejora genética de los cruces dialélicos por selección masal en la tilapia nilótica GIFT (Oreochromis niloticus Linnaeus, 1758). Centro De Investigaciones Marinas. Universidad De La Habana. Cuba. Tesis de Master en Biología marina y mención en Acuicultura 78.
Basantes C (2015) “Evaluación del uso de balanceado orgánico vs el alimento industrial sobre la conversión alimenticia de la Oreochromis spp criada en cultivo intensivo”. Tesis en medicina veterinaria. Facultad de medicina Veterinaria y Zootecnia 70p.
Bentsen HB, Gjerde B, Nguyen NH, Rye M, Ponzoni RW, De Vera MSP, Bolivar Hl, Velasco RR, Danting JC, Dionisio EE (2013) Genetic improvement of farmed tilapias: genetic parameters for body weight at harvest in Nile tilapia (Oreochromis niloticus) during five generations of testing in multiple environments. Aquaculture 338‑341.
Bezerra IA, Vilhena RN, Fonseca RT, Freato TA, Carvalho A, Ribeiro R (2013) Weight and morphometric growth of different strains of tilapia (Oreochromis spp). Revista Brasileira 42(5) 305-311.
Charo-karisa H, Rezk MA, Ponzoni RW, Arendonk L, Van B (2006) Heritability estimates and response to selection for growth of Nile tilapia (Oreochromis niloticus) in low-input earthen ponds. Aquaculture 261: 479-486.
De Paiva E, Lopes de Oliveira CA, Martins EN, Pereira RR, Conti AC, Kunita MN, Nogueira de Oliveira S, Pinheiro P (2015) Responses to selection for performance traits in Nile tilapia. Pesquisa Agropecuária Brasileira 50(9): 745-752.
Eknath AE, Acosta BO (1988) Genetic improvement of farmed tilapias (GIFT) project: final report. Makati City: International Center for Living Aquatic Resources Management. Aquaculture 240.
Khaw HL, Ponzoni RW, Danting MJC (2008) Estimation of genetic change in the GIFT strain of Nile tilapia (Oreochromis niloticus) by comparing contemporary progeny produced by males born. Aquaculture 275: 64-69.
Misztal I, Aguilar I, Legarra A, Vitezica ZG (2022) Manual for BLUPF90 family of programs. (University of Georgia: Athens, GA, USA) Available at http://nce.ads.uga.edu/html/projects/programs/docs/ blupf90_all8.pdf 149 p. Verified 20/10/24.
Nogueira de Oliveira S, Lopes de Oliveira CA, Filho LA, Kawakami RE, Lopera NM, Kunita NM, Araya F, Pereira R (2017) Genetic parameters and morphometric characteristics of two generations from the GIFT strain of the Nile Tilapia. Semina: Ciências Agrárias, Londrina 35(6): 3457-3468.
Oliveira SN, Ribeiro R, Oliveira C, Filho LA, Oliveira AMS, Lopera NM, Santander VFA, Santana R, (2017) Interactive effects of genotype x environment on the live weight of GIFT Nile tilapias. Anais da Academia Brasileira de Ciências 89(4): 2931-2943.
Oliveira FCL, Campos ECG, Yoshida M, Lewandowski V, Todesco H, Nguyen NH, Pereira RR (2020) Effects of genotype × environment interaction on the estimation of genetic parameters and gains in Nile tilapia. Institute of Plant Genetics, Polish Academy of Sciences, Poznan 20,1-6 pp.
Ponzoni RW, Azhar H, Saadiah T, Norhidayat K (2005) Genetic parameters and response to selection for live weight in the GIFT strain of Nile tilapia (Oreochromis niloticus). Aquaculture 247: 203‑210.
Preston T R, Willis MB (1974) Producción Intensiva de Carne. Editorial Diana, México. Verde, L. La aplicación racional del crecimiento. pp200.
Santos AI, Pereira RR, Vargas L, Mora F, Filho LA, Fornari DC, Nogueira de Oliveira S (2011) Bayesian genetic parameters for body weight and survival of Nile tilapia farmed in Brazil. Pesquisa Agropecuária Brasileira 46(1): 33-43.
Todesco H (2020) Parâmetros genéticos para características produtivas e qualidade de pele em tilápia do Nilo. Universidade estadual de Maringá. Teses de doutorado. Paraná, Brasil.
WorldFish (2021) Guidelines for managing the risks of introductions and transfers of Genetically Improved Farmed Tilapia (GIFT). Penang, Malaysia: WorldFish. Guidelines.
Downloads
Published
Issue
Section
License
Copyright (c) 2024 Authors & UJAT
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
