Suplementação alimentar com vitamina C e desempenho zootécnico de girinos de rã-touro (Rana catesbeiana)
| Autor: | Marta Verardino De Stéfani, Milena Alves de Souza, Neidison Carneiro Colombano, Jaime Fenerick Junior, Flávio Ruas de Moraes, Euclides Braga Malheiros |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Vitamin
medicine.medical_specialty Vitamin C media_common.quotation_subject Biology Body weight Ascorbic acid biology.organism_classification Tadpole chemistry.chemical_compound Endocrinology chemistry Bullfrog Internal medicine medicine Animal Science and Zoology Metamorphosis medicine.symptom Weight gain Food Science media_common |
| Zdroj: | Acta Scientiarum. Animal Sciences. 29 |
| ISSN: | 1807-8672 1806-2636 |
| DOI: | 10.4025/actascianimsci.v29i3.573 |
| Popis: | The present study had as objective to evaluate the effects of vitamin C supplementation on the performance indices of bullfrog ( Rana catesbeiana ) tadpoles. The tadpoles, with an average weight of 12.3 ± 2 mg, were distributed in 16 boxes (40 L), with 1 tadpole L -1 . They received diets supplemented with zero (control), 1,000, 1,500 and 2,000 mg of vitamin C kg -1 of diet, during 75 days. After this period, the survival, metamorphosis percentage, weight gain and specific growth rate were evaluated. The tadpoles that received 2,000 mg vitamin C kg -1 ration showed the best results in survival (93%), the best percentage of metamorphosis (29%), the greatest weight gain (4.22 g) and the best specific growth rate (6.03% day -1 ). The worst performance was observed in the tadpoles that did not receive vitamin C. The results suggest that ration with 2,000 mg of vitamin C kg -1 improves weight gain, specific growth rate, metamorphosis and survival of the bullfrog tadpoles. |
| Databáze: | OpenAIRE |
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