Regime Alimentar De Girinos De Rã Touro

Filho, José Teixeira de Seixas; Navarro, Rodrigo Diana; Garcia, Silvana Lages Ribeiro; Santos, Ana Paula de Oliveira

doi:10.5216/cab.v14i1.16049

Cited by 3 publications

(4 citation statements)

References 5 publications

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“…The feed conversion ratios in the polycultures with 25% tilapia + 75% tadpoles and 12.5% tilapia + 87.5% tadpoles in the second experiment were 1.59 g/g and 1.39 g/g, whereas the tadpole and tilapia monocultures showed 1.36 and 1.78 g/g, respectively. In the literature, bullfrog tadpoles exhibited an average feed conversion ratio of 1.50 g/g (Lima et al 2003, Seixas Filho et al 2013, that is, the results obtained with the tadpoles in the current study are within the normal range for the species, for this parameter.…”

Section: Discussionsupporting

confidence: 81%

Polyculture of bullfrog tadpoles and Nile tilapia fry

Sarturi

Heluy

Sarmiento

et al. 2021

An. Acad. Bras. Ciênc.

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Section: Discussionsupporting

confidence: 81%

Polyculture of bullfrog tadpoles and Nile tilapia fry

Sarturi

Heluy

Sarmiento

et al. 2021

An. Acad. Bras. Ciênc.

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“…management during grow-out phase that causes deterioration of the water quality (Borges et al, 2012), as the eutrophication process. Bullfrogs show better performance when fed with crude protein diets near 40% and carbohydrates, both for tadpoles (Stéfani et al, 2001) as in the fattening stage (Stéfani et al, 2002;Olvera-Novoa et al, 2007;Seixas-Filho et al, 2013), because the amphibians are carnivorous in post-metamorphic phase. Protein levels between 35 and 40% have a ratio of C:N smaller than 10:1 and are easily decomposed by bacteria.…”

Section: Discussionmentioning

confidence: 99%

Bullfrog (Lithobates catesbeianus) farming system: water quality and environmental changes

Mercante¹,

Vaz‐dos‐Santos²,

Moraes³

et al. 2014

Acta Limnol. Bras.

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INTRODUCTION: Frog farming, if not well managed, may cause environmental damages. The use of antibiotics, the organic discharge and the introduction of exotic species can disseminate risks such as eutrophication, changes in the water quality and organic pollution, factors that affect the human consumption. AIM: Evaluating the water quality of a bullfrog farming system, discussing their relations to production and the environment based on the current legislation. METHODS: Sampling was performed on a monthly basis from November 2006 to March 2007 during growth and fattening phases of bullfrog (Lithobates catesbeianus). Sample sites were distributed according to the water flow: upstream from the mixing zone, affluent (supply water), bay, effluent, mixing zone and downstream from the mixing zone. In the field, pH, electrical conductivity, dissolved oxygen, temperature and turbidity were measured. In laboratory, nitrogen, phosphorus and chlorophyll a concentrations were analyzed. RESULTS: The concentration of nutrients was determiner for water quality in the bay and its effluent. According to the current legislation, the effluent exceeded the limits for total phosphorus (> 0.030 mg L-1) and total nitrogen (> 1.27 mg L-1). Other variables presented acceptable values in light of the current laws. CONCLUSION: The high values of nutrients and other factors such as conductivity and turbidity are proportional to the animal growth due to the inadequate management practices evidenced by feed conversion rate. The following management options are proposed: maintaining the flow and decreased density of animals; maintaining the flow and density storage with adequate control of the food supply.

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“…equation was adequate and efficient for the production of bullfrog tadpoles (Seixas Filho et al, 2011, 2013.…”

Section: Accepted Manuscriptmentioning

confidence: 97%

“…As a consequence, tadpoles are fed commercial rations used for carnivorous or omnivorous fish (Seixas Filho et al, 2010a, 2013Castagna et al, 2014). These rations can cause abnormal development, death, classical signs of nutritional disorders, and histopathological alterations in organs such as the liver, intestine, stomach and kidneys (Seixas Filho et al, 2008).…”

Section: Introductionmentioning

confidence: 99%