Recovery of Cyprinus carpio (Ornamental Koi Carp) Experimentally Infected with Aeromonas hydrophila through Phytotherapy

The aim of the present study was to obtain a basic knowledge of the hematology of Cyprinus carpio-Ornamental Koi Carp. The morphological features of blood cells were described according to the observations made by light and electron microscopy. Erythrocytes, thrombocytes and four types of leucocytes: lymphocytes, monocytes, heterophils and eosinophils, were distinguished and characterized. Thrombocytes are the most abundant blood cells after erythrocytes and are recognized easily from lymphocytes by morphological features and size. Heterophils and eosinophils are PAS positive. Hematological indices (RBC, WBC, PCV, Hb, MCV, MCH, MCHC and leucocyte differential count) were measured in one blood sample from experimental animal. This research was to reveal the benefit of phytotherapy instead of chemotherapeutic agents of bacterial pathogen Aeromonas hydrophila. Which in intramuscularly infected Koi carp were manifested as a hemorrhagic spot within 19.002.00 has a lesion which progressively increased in size as open wound measuring 1.730.50 cm in diameter on the 3 rd day.The infected fishes were involved in the short bath treatment, healing commenced with the shrinking of the lesion and appearance of epidermis, on the third day of treatment in 152 days with Acorus calamus and 173 days with Indigofera aspalathoides. The scale formation was complete in the next 52 days with A. calamus and 203.5 days with I. aspalathoides confirming the superiority of the short bath treatment. However, with A. calamus treatment on the 15 th day the values varied significantly indicating speedy recovery; the results prove the efficacy of short bath treatment with herbal residue and the increased potency of A. calamus over I. aspalathoides in combating the A. hydrophila infection in Koi carp.