Polyculture of frogs and tilapia in cages with high feeding frequency

Autor(es)

de Castro, Cecilia Silva ^[1] ; Ribeiro, Raphaela Rezende ^[1] ; Agostinho, Lucas Miyabara ^[2] ; Dias Santos, Anderson Aparecido ^[1] ; Carmelin, Jr., Celio Aparecido ^[1] ; Chan, Renie Venn ^[3] ; Neto, Joao Favero ^[3] ; Agostinho, Claudio Angelo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, Programa Posgrad Zootecnia, Fac Med Vet & Zootecnia, BR-18608000 Botucatu, SP - Brazil

^[2] Univ Estadual Paulista, UNESP, Programa Posgrad Med Vet, Fac Med Vet & Zootecnia, BR-18608000 Botucatu, SP - Brazil

^[3] Univ Estadual Paulista, UNESP, Fac Med Vet & Zootecnia, BR-18608000 Botucatu, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: AQUACULTURAL ENGINEERING; v. 61, p. 43-48, JUL 2014.
• Citações Web of Science: 4

Resumo

The polyculture of frogs and tilapia was evaluated in 12 pens made of polypropylene, installed within cages linearly distributed in a pond. 43 bullfrogs (Lithobates catesbeianus) with 79.1 +/- 16.9 g were distributed in each pen; and 30 tilapia fry (Oreochromis niloticus) with 17.0 +/- 1.0 g were distributed in each cage. Three feeding frequencies were tested (24,48 and 96 meals/day) and the feed was supplied by automatic feeders. Tilapia were fed only with the leftovers because the feed was supplied just to the frogs. At the end of the experiment (120 days), the average values of the apparent feed conversion ratio (FCR) of the frogs were 2.46, 2.43 and 2.11 for the feeding frequencies of 24, 48 and 96 meals/day, respectively; regarding the polyculture, frogs and tilapia together, these values were 1.55, 1.52 and 1.33 for the same frequencies, respectively. The results indicated that the use of high feeding frequency (96 meals/day) improved FCR of frogs' production with consequent reduction of feed waste. The polyculture showed that it is possible to produce frogs in cages sustainably. (C) 2014 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 11/00057-7 - Frequência alimentar e período de alimentação no cultivo de rã-touro em tanque-rede
• Beneficiário: Cecília Silva de Castro
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 11/10288-6 - Frequência alimentar e período de alimentação para girinos e rãs em tanque-rede
• Beneficiário: Claudio Angelo Agostinho
• Modalidade de apoio: Auxílio à Pesquisa - Regular