| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000409059 |
| ISSN: | 0001-3765 |
| Authors: | Mattos, Bruno O. de1 Nascimento-Filho, Eduardo C.T1 Santos, Aline A2 Barreto, Kayck A2 Sánchez Vázquez, Francisco J3 Fortes-Silva, Rodrigo2 |
| Institutions: | 1Universidade Federal da Bahia, Departamento de Zootecnia e Medicina Veterinaria, Salvador, Bahia. Brasil 2Universidade Federal do Reconcavo da Bahia, Centro de Ciencias Agrarias, Ambientais e Biologicas, Cruz das Almas, Bahia. Brasil 3Universidad de Murcia, Facultad de Biología, Murcia. España |
| Year: | 2017 |
| Season: | Jun |
| Volumen: | 89 |
| Number: | 2 |
| Pages: | 1243-1250 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | This study aimed to investigate pirarucu's (Arapaima gigas) ability to trigger a self-feeding system to regulate protein intake between two standard diets that contained 39% and 49% of crude protein. The same system allowed the evaluation of daily feeding and locomotor activity rhythms. Eighteen fish (654.44±26.85g) were distributed into six 250 L tanks (3 fish/tank). Fish had free access to both diets (39% vs. 49% protein) by feeders (2 per tank), adapted to be activated by fish themselves. This system was connected to a computer system. After an adaptation period, fish learned to activate feeders and the mean food intake recorded was 2.14% of their body weight on a daily basis. Fish showed feeding (72.48%) and locomotor (72.49%) activity predominantly during the daytime, and daily variations of choice between diets, but fixed a protein intake feeding target at 44.53%. These results should be considered when discussing feeding behavior, feeding schedules and diet intake regulations |
| Disciplines: | Medicina veterinaria y zootecnia |
| Keyword: | Nutrición animal, Zootecnia, Peces, Cultivo de peces, Peces de agua dulce, Conducta alimenticia, Ingesta proteica, Frecuencia de alimentación, Arapaima gigas |
| Keyword: | Veterinary medicine and animal husbandry, Animal husbandry, Animal nutrition, Fish, Fish culture, Freshwater fish, Feeding behavior, Protein intake, Feeding frequency, Arapaima gigas |
| Full text: | Texto completo (Ver HTML) |
