Effects of dietary administration of stinging nettle (Urtica dioica) on the growth performance, biochemical, hematological and immunological parameters in juvenile and adult Victoria Labeo (Labeo victorianus) challenged with Aeromonas hydrophila
| Autor: | Elijah Oyoo-Okoth, Emily Jepyegon Chemoiwa, Charles C. Ngugi, Peninah A. Aloo, James Mugo-Bundi, Paul Orina |
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| Rok vydání: | 2015 |
| Předmět: |
Blood Glucose
Hydrocortisone Labeo victorianus Cyprinidae Immunoglobulins Physiology Aquaculture Aquatic Science chemistry.chemical_compound White blood cell medicine Animals Environmental Chemistry Juvenile Urtica dioica Triglycerides Respiratory Burst Dose-Response Relationship Drug biology Triglyceride Probiotics Albumin General Medicine biology.organism_classification Aeromonas hydrophila Blood Cell Count Diet Labeo Cholesterol medicine.anatomical_structure Hematocrit chemistry Immunology Muramidase |
| Zdroj: | Fish & Shellfish Immunology. 44:533-541 |
| ISSN: | 1050-4648 |
| DOI: | 10.1016/j.fsi.2015.03.025 |
| Popis: | We investigated effects of dietary administration of stinging nettle (Urtica dioica) on growth performance, biochemical, hematological and immunological parameters in juvenile and adult Victoria Labeo (Labeo victorianus) against Aeromonas hydrophila. Fish were divided into 4 groups and fed for 4 and 16 weeks with 0%, 1%, 2% and 5% of U. dioica incorporated into the diet. Use of U. dioica in the diet resulted in improved biochemical, hematological and immunological parameters. Among the biochemical parameters; plasma cortisol, glucose, triglyceride and cholesterol decreased while total protein and albumin in fish increased with increasing dietary inclusion of U. dioica. Among the haematology parameters: red blood cell (RBC), white blood cell (WBC) counts, haematocrit (Htc), mean cell haemoglobin (MCH), mean cell haemoglobin concentration (MCHC) and netrophiles increased with increasing dietary inclusion levels of U. dioica, some depending on the fish age. Serum immunoglobulins, lysozyme activity and respiratory burst were the main immunological parameters in the adult and juvenile L. victorianus measured and they all increased with increasing herbal inclusion of U. dioica in the diet. Dietary incorporation of U. dioica at 5% showed significantly higher relative percentage survival (up to 95%) against A. hydrophila. The current results demonstrate that using U. dioica can stimulate fish immunity and make L. victorianus more resistant to bacterial infection (A. hydrophila). |
| Databáze: | OpenAIRE |
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