Feeding level to pacamã fingerling (Lophiosilurus alexandri)/ Nível de alimentação para alevinos de pacamã (Lophiosilurus alexandri)

• Autor(a) principal: Seabra, Ana Gabriela Lins
• Data de Publicação: 2020
• Outros Autores: Zadinelo, Izabel Volkweis, Pereira, Luiz Gustavo Ribeiro, Balen, Rafael Ernesto, Dias, Patricia da Silva, Meurer, Fábio
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Veras
• Texto Completo: https://ojs.brazilianjournals.com.br/ojs/index.php/BRJD/article/view/6089
• topic: Brazilian native fish; carnivorous fish; feed management; feed efficiency

The present work is aimed to determine the best feeding level to pacamã (Lophiosilurus alexandri) fingerlings at performance, survival, and body parameters. One hundred One hundred and twenty five fingerlings with mean body weight of 3.57±0.05g were used and distributed in a completely randomized design with five treatments and four replicates during 30 days. The treatments were five feeding levels: 3, 6, 9, 12, and 15% of body weight day-1 of to pacamã fingerlings fish, were feeding twice times daily, 08h00 and 18h00. The diet contained 57,28% crude protein and 3.405,98 Kcal kg-1 gross energy. Water temperature ranging of27.3°C to 28.6°C, and dissolved oxygen was 5.0 mg/L. A quadratic effect (P<0.01) was observed to final weight, weight gain, specific growth rate, and final length. Survival, carcass yield, carcass without head yield, height, head length parameters no showed difference (P>0.05) in function of feeding level. Feeding level of 9.5 % of body weight is recommending to pacamã fingerlings.