Evaluating quality of Nile tilapia (Oreochromis niloticus) eggs and juveniles from different commercial hatcheries
| Autor: | Alfredo Hernandez Llamas, Ilie Sava Racotta Dimitrov, Francisco Javier Valdez Gonzalez, Manuel García-Ulloa Gómez, Hervey Rodríguez González, Breidy Lizeth Cuevas Rodriguez, Arturo Polanco Torres |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Carbohydrate content food.ingredient tilapia quality criteria Broodstock Aquatic Science Oceanography 03 medical and health sciences Nile tilapia food Animal science broodstock eggs Ciencias de la Tierra Juvenile Larva biology Oreochromis niloticus 0402 animal and dairy science Tilapia 04 agricultural and veterinary sciences biology.organism_classification 040201 dairy & animal science Oreochromis 030104 developmental biology juveniles Positive relationship human activities |
| Zdroj: | Latin american journal of aquatic research, Volume: 45, Issue: 1, Pages: 213-217, Published: MAR 2017 Latin american journal of aquatic research v.45 n.1 2017 SciELO Chile CONICYT Chile instacron:CONICYT Redalyc Instituto Politécnico Nacional IPN Redalyc-IPN Latin American Journal of Aquatic Research (Chile) Num.1 Vol.45 |
| ISSN: | 0718-560X |
| DOI: | 10.3856/vol45-issue1-fulltext-23 |
| Popis: | "Our objective was to assess the quality of eggs and juvenile of Nile tilapia ( Oreochromis niloticus ) from broodstock of three commercial hatcheries (H1, H2, and H3). Larval weight was significantly higher for H2 and H3 hatcheries ( P < 0.05) . After 45 - day growth, weight of juveniles of H2 was higher, while specific growth rate was significantly higher fo r H1 and H2 ( P < 0.05) . A fter the ammonia stress test, n o significant differences in mortality were found among larvae from the three hatcheries, although a positive relationship between carbohydrate content in eggs and juvenile mortality was observed ( P < 0.05) . After the salinity stress test, the lowest and highest mortality ( P < 0.05 ) occurred respectively in tilapia larvae from the H1 (24.2%) and H3 (57.8%) hatcheries. We concluded that egg quality was not affected by tilapia broodstock from the three h atcheries studied, but differences were obtained for growth performance, carbohydrate content, and survival of juveniles when exposed to the salinity stress test. These three indexes should be considered as potential juvenile quality criteria for tilapia." |
| Databáze: | OpenAIRE |
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