AVALIAÇÃO DO USO DE GRÃOS DE MILHETO (Pennisetum americanum) E MILHO (Zea mays) NA ALIMENTAÇÃO DE PEIXES NA FASE DE RECRIA, EM SISTEMA DE POLICULTIVO EVALUATION OF PEARL MILLET (Pennisetum americanum) AND CORN (Zea mays) GRAINS IN FEEDING FOR JUVENILE FISH ON POLYCULTURE MANAGEMENT SYSTEM
Avaliou-se a produção de peixes em sistema de policultivo, em tanques de terra com 40m2 de área, contendo cada um 30 tambaquis (Colossoma macropomum) e 10 carpas (Cyrinus carpio), fertilizados diariamente com esterco fresco de suínos, sendo os peixes suplementados com grãos de milho e milheto. PALAVRAS-CHAVE: Peixes; recria; policultivo; milheto. Tambaqui (75%) was reared in polyculture with common carp (25%) from 5.5g and 3.4g mean weight respectively for a period of 505 days. Ponds of 40m2 were stocked at a total density of 10000 ha-1, and daily manured with 150 kg.ha-¹, of swine fresh manure. Fish were supplemented fed with corn or pearl millet grain, offered in submersed trays at a daily rate calculated as 3% of total biomass. The experiment polyculture had a mean net yield of 6.6; 5.2 and 2.1 t.ha-¹.year-¹ of pearl millet, corn and manure respectively. The result of this study indicates that rearing tambaqui in semi-intensive polyculture without supplementary feed had a low growth and the pearl millet fed fish showed a high performance. KEY-WORDS: Fishes; polyculture; pearl millet.
Joaquim Roberto Maia, Wesley Alves Ferreira, Alexandre Sardinha Carvalhêdo, Delma Machado Cantisani Pádua, Aldi Fernandes de Souza França, Luiz Humberto Ribeiro, Paulo César Silva
http://www.revistas.ufg.br/index.php/pat/article/view/2667