Produção do camarão-branco-do-pacífico em sistema de bioflocos com diferentes estratégias de manejo alimentar
DOI:
https://doi.org/10.20950/1678-2305/bip.2022.48.e707Palavras-chave:
Litopenaeus vannamei, ração, tabelas de alimentaçãoResumo
No presente trabalho foram analisadas diferentes modelos para ajustes nas taxas de alimentação para a produção do camarão camarão-branco-do-pacífico (Litopenaeus vannamei) em sistema de bioflocos. Os camarões foram povoados com peso inicial de 4,21 ± 0,09 g na densidade de 250 camarões m-3, e alimentados seguindo as diferentes metodologias durante 60 dias. A primeira seguiu a tabela de Van-Wyk, considerando as taxas mínimas (MIN) e máximas (MAX) de ração. A segunda foi de acordo com dois valores estimados do cálculo de conversão alimentar (FCR de 1.1 e 1.5), baseado na metodologia determinada por Garzade Yta et al. (2004). Foi adotado um delineamento experimental inteiramente casualizado, composto por quatro tratamentos (MIN, MAX, FCR 1.1 e FCR 1.5) com 4 repetições cada. Foram avaliados o desempenho zootécnico, os parâmetros físicos e químicos da água e a produção de sólidos do sistema. O tratamento que utilizava quantidades mínimas de ração determinada pela tabela apresentou uma melhor conversão alimentar, sobrevivência, utilizando uma menor quantidade de ração e gerando uma menor quantidade de resíduos. Embora a estratégia de alimentação utilizando os valores mínimos da tabela tenha apresentado melhores resultados, ainda é necessário o aprimoramento dessas estratégias, pois o sistema de Bioflocos é um sistema que possui variações e seus ajustes devem ser feitos de acordo com as interações do sistema.
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