Blood Cytomorphometry and Cytomorphology Red-tailed Green Viper (Trimeresurus insularis) On the Bali Island
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Abstract
Snakes are becoming increasingly popular among reptile enthusiasts due to their uniqueness and exoticism. Snakes can be classified into venomous and non-venomous. Venomous snakes exhibit unique colors, body shapes, and behavior. Snake bites are common in Indonesia, and many cases go unreported. The red-tailed green viper (Trimeresurus insularis/T. insularis), a venomous snake, is frequently found on the island of Bali. However, research on this snake is limited. Blood morphology is an indicator of an animal's health status and can provide comprehensive information about the animal. The study was aimed to know the cytomorphology and cytomorphometry of Red-tailed Green Viper (Trimeresurus insularis) on the Bali Island. Knowing the health status of T. insularis through the morphology of its blood cells can assist veterinarians in diagnosing and treating sick animals. This study used nine healthy T. insularis snakes, comprising five males and four females from Bali. Blood was collected from the coccygeal vein smeared on a glass slide, fixed with 90% ethanol, and stained with 10% Giemsa. The blood smear was then observed under a microscope to measure cytomorphometry. The Veterinary Immunology Laboratory at Udayana University and the Malang Healthy Animal Clinic conducted cell measurements using an Olympus CX33 microscope, analyzing data with SPSS via the Analysis of variance test. The study found significant differences in erythrocyte nucleus width between male (25.92 µm) and female (30.44 µm) T. insularis snakes, as well as in basophil cytoplasm length (males: 6 µm, females: 5.37 µm). No differences were observed in heterophils, lymphocytes, or azurophils, and eosinophils were absent in these snakes on Bali.