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Multivariate analysis using morphometric and ultrasound information for selection of tilapia (Oreochromis niloticus) breeders
Provedor de dados: 96
Autores: Oliveira,Sheila Nogueira de; Ribeiro,Ricardo Pereira; Oliveira,Carlos Antonio Lopes de; Lopera-Barrero,Nelson Mauricio; Borquis,Rusbel Raul Aspilcueta; Zardin,Aline Mayra da Silva Oliveira; Souza,Felipe Pinheiro de; Poveda-Parra,Angela Rocio.
ABSTRACT This study evaluated morphometric and ultrasound information of tilapia (O. niloticus) breeders through multivariate analysis. We applied correlation, clustering, and principal component analysis to a dataset composed of information from 222 male and female breeders of the improved GIFT strain. The body weight, objective of the breeding program, showed a high positive correlation with most of the morphometric parameters. The formation of clusters indicated characteristics responsible for muscle composition and carcass weight. Some characteristics showed a high correlation, such as body weight and fillet weight (0.98 and 0.94 for females and males, respectively), and a high contribution to the explanation of data variability; of the total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Breeding; Fish farming; Oreochromis sp.; Phenotypic selection.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100151