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Asian Journal of Animal Sciences
  Year: 2017 | Volume: 11 | Issue: 4 | Page No.: 158-164
DOI: 10.3923/ajas.2017.158.164
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Age and Seasonwise Haematological Profile of Little Egret (Egretta garzetta) of Chilika Wetland, India

Yogamaya Behera , Sarbeswar Nayak and Prafulla K. Mohanty

Background and Objective: Wetlands are abode to a number of avian species, both migratory as well as resident. Aves in general represent a sensitive group of faunal population and can act as indicators not only for health of their own population but also for their habitat. The study of the physiological features, like the haematological parameters of a wild avian population can be helpful to comprehend various aspects experienced by it like the effect of environment, pathogenic and parasitic interactions and nutritional deficiencies. The present study aimed at the study of the effect of age and season on the haematological profile of little egret (Egretta garzetta), a breeding resident avian species of Chilika lagoon, the largest brackish water wetland of Asia. Materials and Methods: Blood samples were collected from 10 juveniles and 10 adults in each season. Haematological parameters like haemoglobin concentration (Hb), Packed Cell Volume (PCV), total RBC count, Mean Corpuscular Haemoglobin (MCH), Mean Corpuscular Haemoglobin Concentration (MCHC), total WBC count, thrombocyte count and differential leucocyte count were calculated using standard procedures and reported as reference values for young and adult little egrets for four different seasons noticed in the tropical wetland, during the year 2015. Statistical analysis like t-test and one way ANOVA were done to test for significant difference at p<0.05. Results: The study showed that the avian blood profile is influenced by seasonal and age related variations. The values of Hb, PCV, RBC count, WBC count as well as MCHC were higher in adults compared to juveniles in all the seasons except the spring when WBC count was higher in juveniles. The values of MCV and MCH however were higher in juveniles except the rainy season. All the other leucocyte types except heterophils and lymphocytes indicated non-significant influence of age and seasons on their values. The thrombocyte count in adults showed seasonal fluctuations but juveniles, the variation in thrombocyte counts were non-significant. Conclusion: It is concluded that birds of two different age groups showed different trends in their blood profiles with respect to the seasonal stress. The data obtained could be useful as references for evaluation of general health and pathological conditions of the species.
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How to cite this article:

Yogamaya Behera, Sarbeswar Nayak and Prafulla K. Mohanty, 2017. Age and Seasonwise Haematological Profile of Little Egret (Egretta garzetta) of Chilika Wetland, India. Asian Journal of Animal Sciences, 11: 158-164.

DOI: 10.3923/ajas.2017.158.164






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