Dietary digestible energy levels on the gonad development of Piauçu ( Leporinus macrocephalus ) in post larvae stage

Dietary digestible energy levels on the gonad development of Piauçu ( Leporinus macrocephalus ) in post larvae stage

The objective of this study was to evaluate the effect of energy levels on testicular development of the piauçu ( Leporinus macrocephalus ). Six hundred fishes, averaging initial weight and length of 0.33 ± 0.11 g and 2.94 ± 0.39, respectively, were utilized. The experiment was carried out according...

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Veröffentlicht in:Zootecnia tropical 2006-10, Vol.24 (2)
1. Verfasser: Rodrigo Diana Navarro, Sérgio Luis Pinto da Matta, Eduardo Arruda Teixeira Lanna, Juarez Lopes Donzele, Sirlene Souza Rodrigues, Rodrigo Fortes da Silva, Leonardo Luiz Calado e Oswaldo Pinto Ribeiro Filho
Format: Artikel
Sprache:eng
Schlagworte:
desenvolvimento testicular, índice gonadossomático, energia, piauçu
gonadal development, gonad-somatic index, energy, piauçu
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Zusammenfassung:The objective of this study was to evaluate the effect of energy levels on testicular development of the piauçu ( Leporinus macrocephalus ). Six hundred fishes, averaging initial weight and length of 0.33 ± 0.11 g and 2.94 ± 0.39, respectively, were utilized. The experiment was carried out according to a completely randomized design, with 4 treatments (2600, 2700, 2800, and 2900 kcal DE/kg). Energy level did not significantly affect average final body weight and total length. Quadratic effect on gonads weight (P
ISSN:0798-7269