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Reproductive performance of female Nile tilapia ( Oreochromis niloticus ) fed diets with different digestible energy levels R. Bras. Zootec.
Orlando,Tamira Maria; Oliveira,Marinez Moraes de; Paulino,Renan Rosa; Costa,Adriano Carvalho; Allaman,Ivan Bezerra; Rosa,Priscila Vieira.
ABSTRACT This study aimed to evaluate the reproductive performance of female Nile tilapia (Oreochromis niloticus) fed diets containing different levels of digestible energy (DE). The fish were housed in 15 fiberglass tanks (500 L) in a recirculating system at an average temperature of 27.5 °C. The treatments consisted of five diets with increasing levels of DE (3,200; 3,400; 3,600; 3,800; and 4,000 kcal/kg). The levels of DE did not significantly influence the final weight or the hepatosomatic, gonadosomatic, and visceral fat indices. The absolute fecundity was influenced by the treatments, for which the highest values were observed from the 3,600 kcal/kg DE level and upward. The proximate composition of the fish also had a significant effect on the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Body composition; Fecundity; Fish; Nutrition; Reproduction.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100001
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