Influence of dietary ginger (Zingiber officinale) on haemato-biochemical parameters, spleen histology and resistance of Oreochromis niloticus fingerlings to Aeromonas hydrophila infection
Negm, I., El Asely, A., Abbass, A. (2016). Influence of dietary ginger (Zingiber officinale) on haemato-biochemical parameters, spleen histology and resistance of Oreochromis niloticus fingerlings to Aeromonas hydrophila infection. EKB Journal Management System, 6(1), 25-45. doi: 10.21608/eja.2016.45437
Islam M Negm; Aml M El Asely; Amany Abbass. "Influence of dietary ginger (Zingiber officinale) on haemato-biochemical parameters, spleen histology and resistance of Oreochromis niloticus fingerlings to Aeromonas hydrophila infection". EKB Journal Management System, 6, 1, 2016, 25-45. doi: 10.21608/eja.2016.45437
Negm, I., El Asely, A., Abbass, A. (2016). 'Influence of dietary ginger (Zingiber officinale) on haemato-biochemical parameters, spleen histology and resistance of Oreochromis niloticus fingerlings to Aeromonas hydrophila infection', EKB Journal Management System, 6(1), pp. 25-45. doi: 10.21608/eja.2016.45437
Negm, I., El Asely, A., Abbass, A. Influence of dietary ginger (Zingiber officinale) on haemato-biochemical parameters, spleen histology and resistance of Oreochromis niloticus fingerlings to Aeromonas hydrophila infection. EKB Journal Management System, 2016; 6(1): 25-45. doi: 10.21608/eja.2016.45437

Influence of dietary ginger (Zingiber officinale) on haemato-biochemical parameters, spleen histology and resistance of Oreochromis niloticus fingerlings to Aeromonas hydrophila infection

Egyptian Journal for Aquaculture
Article 2, Volume 6, Issue 1, March 2016, Page 25-45  XML PDF (995.18 K)
Document Type: Original Article
DOI: 10.21608/eja.2016.45437
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Authors
Islam M Negm; Aml M El Asely; Amany Abbass*
Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Benha University, Egypt.
Abstract
The effects of dietary ginger on haematological parameters, antioxidant enzymes activites spleen histology  and disease resistance of Oreochromis niloticus  were investigated.  Four test diets containing different levels of ginger (0, 1, 2 and 3%) (W/W) were fed for O. niloticus fingerlings weighted (7.94± 0.26g) for 4 weeks. A positive correlation was observed between the level of ginger and haemato-biochemical parameters measured. The results revealed that blood parameters [(total leukocytic count (TLC), total erythrocytic counts, packed cell volume (PCV), haemoglobin concentration (HB) and differential leukocytic count (DLC)] and serum (total proteins, albumin and globulin) were significantly higher (p< 0.05) in ginger fed groups. Antioxidant enzymes including [Glutathione Peroxidase enzyme (GSH-px), Superoxide Dismutase (SOD)] showed significant increase (p< 0.05) in ginger treated groups in relation with control. While, Malondialdehyde (MDA) and liver function enzymes [Glutamic – oxaloacetic transaminase GOT (AST) and Glutamic – pyruvic transaminase GPT (ALT)] were significantly lower than the control groups. Spleen histological structure showed time and concentration dependant increase in melanomacrophaphage centers and hemosiderin pigments that reach the highest aggregations at 3rd week post feeding.  Challenge infection by A. hydrophila recorded highly significant protection reaching (90.2%) in 1% ginger treated groups for 4 weeks. The results suggest that ginger can be recommended as a supplement to O. niloticus feed to enhance resistance against A. hydrophila pathogen
Keywords
Ginger; haemato- biochemical parameters; spleen histology; Nile tilapia; Aeromonas hydrophila
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