| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000435701 |
| ISSN: | 0001-3765 |
| Authors: | Lemos, Carlos Henrique P1 Chung, Samantha1 Ribeiro, Cláudio V.M1 Copatti, Carlos Eduardo1 |
| Institutions: | 1Universidade Federal da Bahia, Escola de Medicina Veterinaria e Zootecnia, Salvador, Bahia. Brasil |
| Year: | 2018 |
| Season: | Dic |
| Volumen: | 90 |
| Number: | 4 |
| Pages: | 3573-3581 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | Although fish may live in different aquatic environments, variations in the water quality parameters, mainly pH, may have a substantial impact in their development and welfare. The objective of this study was to test the effect of different pH levels on the growth performance and biochemical variables in Amazon catfish juveniles (Pseudoplatystoma reticulatum x Leiarius marmoratus). Fish were subjected to four different water pH levels (4.56, 6.0, 7.24, and 8.90) for 40 days. The total ammonia and alkalinity were higher and lower, respectively, in the treatments with water pHs 4.56 and 6.00 than at the other water pH levels. The un-ionized ammonia was higher at water pH 8.90 than at the other water pH levels. Amazon catfish exposed to water pH 4.56 presented specific growth rate and weight gain significantly higher than other water pH values. In general, fish under exposure to water pH 8.90 presented lower growth performance than other water pH values. Biochemical changes were recorded at all water pH. In conclusion, water pH 4.56 is recommended for an Amazon catfish production system, since fish presented higher growth and water quality variables were kept within adequate limits for aquaculture |
| Disciplines: | Medicina veterinaria y zootecnia |
| Keyword: | Peces, Zootecnia, Peces de agua dulce, Cultivo de peces, Híbridos, pH, Crecimiento, Parámetros bioquímicos, Pseudoplatystoma reticulatum x Leiarius marmoratus |
| Keyword: | Fish, Animal husbandry, Freshwater fish, Fish culture, Hybrids, pH, Growth, Biochemical parameters, Pseudoplatystoma reticulatum x Leiarius marmoratus |
| Full text: | https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703573&lng=en&nrm=iso&tlng=en |
