In the present study comparative analysis between commercial poultry and Indigenous chicken variety has been made with respect to physico-chemical status, haematological and biochemical parameters. The blood profile is considered to be a reliable indicator of health. The aim of the study is to compare the haematogical and biochemical profile of commercial poultry and Indigenous chicken variety found in Darjeeling Hills and to assess the impact of environmental, genetic and physiological parameters. Material and methods: Five healthy poultry chicken (cock, average age of 18 weeks) and five healthy indigenous chickens (cock, average age of 18 weeks) were selected for the experiment. Before the commencement of the experiment these chickens were housed in separate group with same type and quantity of food and water for three weeks. First birds were weighed, after which blood samples were collected from the wing (brachial) vein. Results: The Bleeding Time (BT) of Poultry and Indigenous variety of Gallus sp. is 59.6 ±2.3 and 70.4±2.7 respectively (Table 1), which is significantly different (t=6.089, df=8, L.S 0.05, p=2.306).The difference in Clotting Time (CT) of Poultry is 31.2 ±2.58 and of Indigenous variety is 36.8 ±1.48 and was also found to be significantly different (t=3.765, df=8, L.S 0.05, p=2.306).There is no significant difference in the haemoglobin content of the poultry and indigenous variety (Table 1). The total count (TC) of RBC of indigenous (3210 x 103 ) ±169.0 have found to be greater than the Poultry variety (2098 x 103 ) ±97.76.The comparison of the Differential Count (DC) of WBC did not show significant differences other than monocytes where the difference is significant. The higher levels of RBC count in indigenous variety may be an adaptation to survive well in high altitude region (1000 to 3500m). There is varied difference between broiler and indigenous chickens in glucose levels in indigenous breed 139.99 ±9.90 mg/dl and in Poultry was found to be 259.98 ±15.44 mg/dl (Table 2) and Cholesterol levels poultry birds (468±7.582) have significantly(P<0.05) much higher plasma cholesterol than the indigenous breed (208 ±5.708). The effect of the environment and climatic condition is reflected in physiological state of the organism. With regards to the biochemical parameters, differences among values of some serum parameters have been registered.
