Tambacus (Colossoma macropomum x piaractus mesopotamicus) alimentados com rações artesanais de macaxeira e soja
| Autor: | Meyer, G., Corrêa, R. O., Martins-Junior, H., Silva, R. M., Costa, S. M., Santana, M. F.S. |
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| Jazyk: | portugalština |
| Rok vydání: | 2019 |
| Zdroj: | Repositório Institucional do INPA Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
| Popis: | The usage of artisanal feed is an alternative that is been discussed to support household fish culture in Amazonia. Employing this strategy, however, require the adoption of some criteria for adjusting feed nutrient balance. The purpose of this study was to investigate juvenile tambacu (Colossoma macropomum x Piaractus mesopotamicus) performance when fed cassava and soybean meal artisanal feed, as well to evaluate the need of its supplementation to fulfill fish amino acids, energy and macro minerals requirements. For this, 813 juveniles (48.49 ± 4.21 g) were stocked in 15 reinforced concrete ponds (earthen ground; 48.50 ± 3.61 m² x 0.8 m) and fed five different diets, in which four of them were artisanal, formulated to be isoproteic (25% CP), as follow: C1 (cassava + soybean meal + premix; as control), R1 (C1 + dicalcium phosphate), R2 (C1 + dicalcium phosphate + soybean oil), R3 (C1 + dicalcium phosphate + soybean oil + DL-methionine), and C2 (32%PB commertial extruded feed; as regional comparison parameter). After 75 days, a positive effect of dicalcium phosphate supplementation were detected (P |
| Databáze: | OpenAIRE |
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