<b>Feeding behavior and water quality in tanks conataining bullfrog tadpoles <em>Rana catesbeiana</em></b> - DOI: 10.4025/actascianimsci.v30i1.3619

  • Lúcia Helena Sipaúba Tavares UNESP
  • Joceli Cristina Leite de Morais UNESP
  • Marta Verardino De Stéfani UNESP
DOI: https://doi.org/10.4025/actascianimsci.v30i1.3619

Abstract

The objective of this study was to evaluate the effect of food treatments and water quality on the development of bullfrog tadpoles. The analysis, carried out in 1000 L tanks, was undertaken by weight and survival rates, during 56 days, as from stage 25 (Gosner, 1960). Treatments with ration (R) and algae + plankton + ration (APR) had the best results in weight and survival rates, which were significantly different (p < 0.05) from the other treatments, comprised of algae only or algae + plankton. Physical and chemical variables of water differed significantly (p < 0.05) during the experimental period and among treatments. There was a correlation between the concentration of species present in the food and in the tadpole digestive tract (rs = 0.39; p < 0.05). From the 14th day of age, bullfrog tadpoles changed their feeding behavior, or rather, a search for food items other than plankton occurred. The utilization of combined natural and artificial (ration) diets to feed bullfrog tadpoles was feasible and yielded a satisfactory development in the animals.

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Author Biography

Lúcia Helena Sipaúba Tavares, UNESP
Possui graduação em Biologia pela Universidade Santa Úrsula (1977), mestrado em Ecologia e Recursos Naturais pela Universidade Federal de São Carlos (1982) e doutorado em Ecologia e Recursos Naturais pela Universidade Federal de São Carlos (1988). Em 1989 após concluir o doutorado foi admitida como Pesquisador I (MS-3) pela UNESP (Jaboticabal-SP). Em 1998 através de concurso público obteve progressão na carreira de pesquisador passando para Pesquisador II (MS-5). Com auxílio da FAPESP no ano de 2001/2002 realizou o Pós-Doutorado na Universidade de Auburn (USA) tendo como supervisor Prof. Dr. Claude Eugene Boyd. Em 2005 prestou outro concurso público para título de Livre Docência em Manejo Ecológico em Aquicultura: Qualidade da Água do programa de pós-graduação em Aqüicultura (UNESP/ CAUNESP/ Jaboticabal-SP). Tem experiência na área de Ecologia, com ênfase em Ecologia Aplicada, atuando principalmente nos seguintes temas: limnologia, viveiros, qualidade da água, plâncton, impacto ambiental, produção de plâncton em laboratório e manejo ecológico Currículo Lattes
Published
2008-06-13
How to Cite
Tavares, L. H. S., Morais, J. C. L. de, & Stéfani, M. V. D. (2008). <b>Feeding behavior and water quality in tanks conataining bullfrog tadpoles <em>Rana catesbeiana</em></b&gt; - DOI: 10.4025/actascianimsci.v30i1.3619. Acta Scientiarum. Animal Sciences, 30(1), 95-101. https://doi.org/10.4025/actascianimsci.v30i1.3619
Issue
Vol 30 No 1 (2008)
Section
Animal Production

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