Hematological Parameters and Blood Cell Morphology of Male and FemaleSchizothorax (Racoma) davidi(Sauvage)

Abstract

The aim of this study was to obtain a basic knowledge of the hematology of Schizothorax (Racoma) davidi (Sauvage). The results showed that red blood cell and white blood cell counts as well as mean cellular hemoglobin concentration were significantly higher in females than in males, while mean cell volumes were significantly lower in females than in males. No significant differences were seen in other hematological parameters in relation with gender. Under light microscope, erythrocytes (mature and immature), leukocytes (neutrophils, lymphocytes, and monocytes), and thrombocytes were distinguished. Mature erythrocytes were ellipsoidal cells with oval, central nucleus. Neutrophils contained banded or segmented nuclei. Small lymphocytes had a very thin rim of basophilic cytoplasm. Monocytes often possessed vacuoles in their cytoplasm. Thrombocytes existed in several forms with relatively large nucleus surrounded by a pink-stained or hyaline cytoplasm. The percentage of the different leukocytes revealed predominance of neutrophils and small lymphocytes, followed by monocytes and large lymphocytes. The neutrophil percentages of each stage showed that metamyelocyte accounted for the most, followed by banded neutrophils. This investigation could be used for evaluation of the health status of cultured male and female S. davidi and will provide early detection of clinical pathology.

Indexing hematological and serum biochemical reference intervals of Himalayan snow trout, Schizothorax esocinus to instrument in health assessment

“…The ESR values in fishes depicted no significant difference between the sexes or seasons. ESR values of current study were similar to those found in S. davidi (Zhu et al, 2017). On average, the MCH values in fishes range from 30 to 100 pg, MCV values varies between 150 and 350 fL and MCHC in fishes range from 18 to 30 g/dL (Hrubec and Smith, 2000).…”

Immunity and Behaviour of Lambs Born from Ewes Fed a Flushing Diet Containing EPA and DHA

“…Blood samples were collected from a jugular vein in the morning with a 1 mL syringe and collected in a sterile tube containing EDTA anticoagulants. Blood hematology parameters such as hematocrit, hemoglobin, total erythrocytes, and total leukocytes were analyzed according to standard procedures (Zhu et al 2017).…”

Application of haematology parameters for health management in fish farms

“…Tang et al (2015) measured that the number of red blood cells, haemoglobin content and haematocrit of female piebald naked carp ( Gymnocypris eckloni ) were significantly lower than those of male 315 . The number of red blood cells, the number of white blood cells and the amount of haemoglobin in female David's schizothoracin ( Schizothorax davidi ) were significantly higher than those in male 327 . In conclusion, there were sex differences in blood physiological and biochemical indexes in fish, but the indexes were high and low without regularity between females and males, and the size of indexes varied with fish species.…”