Alimentação de larvas de jundiá (Rhamdia quelen), com dietas artificiais

Abstract

The study had the purpose of evaluating the effects of different protean sources in the performance of Rhamdia quelen larvae during 21 days. Five treatments and three repetition were utilized. The experimental foods utilized were: T1 (fish meal, hard boiled yolk eggs); T2 (yeast, crud bovine liver); T3 (soybean's meal, bovine liver); T4 (corn's meal, soybean meal and rice); T5 (fish meal and meat, soybean and rice). Groups of 200 larvae were maintained in controlled conditions of culture, utilizing a water reuse system, termoregulated. The food was offered every 2 hours. The T2 and T4 treatments showed higher rates of survival than T1, T3, and T5. No difference was found between T2 and T4, but both were different from T1, T3, and T5. T1 showed higher length mean in 21 days than T2, but T2 had better performance than T3, T4 and T5. No difference was found among T3, T4, and T5. The treatment with yeast and liver was more efficient in the inicial performance of the larvae and it showed to be a good alternative to be utilized in future studies.