Toxicidade aguda da amônia em pacu (Piaractus mesopotamicus)

نویسندگان

چکیده

O Piaractus mesopotamicus é um peixe endêmico da bacia dos rios Paraná-Paraguai, apresentado boa adaptação em sistema intensivo de produção. Nesses sistemas, a amônia pode alcançar níveis extremos quando atividades nutricionais e manejos não são corretas. Neste sentido, o objetivo do presente estudo foi avaliar capacidade tolerância P. expostos diferentes concentrações seu efeito na glicemia concentração amonia plasmática. Foram utilizados 36 exemplares com peso médio 268 ± 71 g 20,7 3,08 cm comprimento padrão, dividios 12 aquários contendo seis tratamentos três por unidade experimental. Os foram compostos NH4Cl nas seguintes doses: 0,0 (controle); 0,1; 0,2; 0,4; 0,6; 0,8 mg.L-1 durante período 96 horas. Análises parâmetros qualidade água realizadas cada 24 horas, mortalidade contabilizada intervalos no máximo horas as análises sanguíneas nos animais sobreviventes ao teste. A tóxica para os pacus partir 1,674 mg.L-1de N-NH3, dose que ocorreu 50% população 66,75 100% 92,5 elevado nível glicose observado tratamento 0,4 ser atribuído estresse esses estavam acometidos, pois todos mesmo tempo jejum. Conclui-se tolerante até N-NH3 num

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ژورنال

عنوان ژورنال: Revista Acadêmica Ciência Animal

سال: 2021

ISSN: ['2596-2868']

DOI: https://doi.org/10.7213/acad.2021.19004