Organic selenium in the diet of Nile tilapia (Oreochromis niloticus) broodstock - DOI: 10.4025/actascianimsci.v31i4.6300

• Autor(a) principal: Pereira, Thiago Scremin
• Data de Publicação: 2009
• Outros Autores: Fabregat, Thiago El Hadi Perez, Fernandes, João Batista Kochenborger, Boscolo, Camila Nomura, Castillo, Julian David Alvarado, Koberstein, Teresa Cristina Ribeiro Dias
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Acta Scientiarum. Animal Sciences (Online)
• Texto Completo: https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6300
• topic: minerals; nutrition; broodstock; culture tilapia; minerais; nutrição; reprodução; tilapicultura; Aquicultura

The aim of this study to test the effect of organic selenium supplementation in the diets of Nile tilapia broodstock. Growth, reproductive performance and performance of fingerlings were evaluated. Eighty adult fish were used, with average weight of 121.7 g and divided into groups of four animals (3 female and 1 male) stocked in 20 tanks with 1.5 cubic meters. The fish were fed five diets containing different levels of organic selenium (0.0, 0.25, 0.50, 0.75, and 1.0 mg kg-1 ration). In the experimental period, females from all tanks were captured and the eggs collected. The experimental design was entirely randomized, with five treatments and four replicates. To evaluate progeny performance, the fingerlings were shared in four aquariums and fed during 30 days with commercial diet (45% CP). The supplementation with organic selenium did not affect the productive performance as with the reproductive parameters of the broodstock (p > 0.05). On the other hand, the broodstock fed with 0.50 mg of organic selenium produced fingerlings that presented improved weight gain (p < 0.05) compared to fish fed the control diet.