Three strategic feeding during hatchering of Nile tilapia: effects on organs integrity, parasitism and performance parameters
| Autor: | José Dias-Neto, Gustavo Moraes Ramos Valladão, Pedro Henrique de Oliveira Viadanna, Fabiana Pilarski |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | International Aquatic Research, Vol 8, Iss 1, Pp 37-48 (2016) |
| Druh dokumentu: | article |
| ISSN: | 2008-4935 2008-6970 |
| DOI: | 10.1007/s40071-016-0123-4 |
| Popis: | Abstract The effect of natural feed, artificial feed, and artificial feed with hormone 17 alpha-methyltestosterone on gill and liver integrity, parasite prevalence and performance parameters during the masculinization phase of Nile tilapia Oreochromis niloticus were evaluated. The experiment consisted of the three feeding strategies in triplicate. Water parameters, histopathological, parasitological and performance analyses were performed on day 7, 14, 28 and 60. Both artificial feeds (with and without hormone) were harmful to the hepatic and branchial integrity. The most significant change in liver was lipid degeneration, while in gills a significantly higher lamellar edema was observed when compared to fish that received the natural feed. Fish fed with the artificial diet (with and without hormone) showed a high prevalence (p |
| Databáze: | Directory of Open Access Journals |
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