DEVELOPMENTAL CONTROL OF BULLFROG TADPOLE (Rana catesbeiana SHAW, 1802) FOR COMMERCIAL CULTIVATION. (Population density, protein quality in the ration and tank localization.)

Authors

  • Dorival FONTANELLO Scientific Researcher at the Instituto de Pesca -  São Paulo State -Brazil
  • Henrique ARRUDA SOARES Scientific Researcher at the Instituto de Pesca -  São Paulo State -Brazil
  • José MANDELLI JÚNIOR Scientific Researcher at the Instituto de Pesca -  São Paulo State -Brazil
  • Benedicto do E. S. de CAMPOS Scientific Researcher - Seção de Estatí­­stica - Divisão de Técnica Básica e Auxiliar - Instituto Zootecnia - Nova Odessa São Paulo State -Brazil
  • Luiz Antonio PENTEADO Scientific Researcher at the Instituto de Pesca -  São Paulo State -Brazil
  • Dalva Maria PRANDI Zootechnician at the firm ACQUAMAR ,AQUACULTURA, CULTIVO E COMÉRCIO LTDA

Keywords:

bullfrog, management, tadpoles, cultivation, tanks, stocking, rations, development

Abstract

At a commercial frogculture firm in Ubatuba (23°24'S - 45°07'W; 5.0 m altitude), São Paulo State, Brazil, it was compared the development (through the weight gain) of bullfrog tadpoles, when reared in sheltered tank (under a shed) and in outdoor tank, at high and at low stocking rate with ration containing vegetable protein and ration containing animal protein, from Dec., 10th, 1985 through June, 4th, 1986. lt was concluded that in highly stocked and sheltered tanks, the end of the transformation is delayed permitting large amounts of tadpoles during all year round, which can be used as a supplemental frog food.

Published

2018-07-03

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