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Poultry and Laboratory Animal Nutrition
Asian-Australasian Journal of Animal Sciences 2011;24(7): 1001-1006.
https://doi.org/10.5713/ajas.2011.10394    Published online June 21, 2011.
The Effects of Copper Supplementation on the Performance and Hematological Parameters of Broiler Chickens
B. Samanta, P. R. Ghosh, A. Biswas, S. K. Das
To determine the efficiency of copper (Cu) supplementation, a feeding experiment was carried out with 240 day old broiler chicks (vencobb-100). Birds were divided into four dietary treatments: i) C - no additives, ii) T1-75 mg inclusion of Cu/kg diet, iii) T2-150 mg inclusion of Cu/kg diet, iv) T3-250 mg inclusion of Cu/kg diet. The present study was carried out in the Department of Animal Physiology, West Bengal University of Animal and Fishery Sciences, Kolkata, India for a period of 42 days (6 weeks). Growth performance was measured in terms of live weight gain, cumulative feed intake and feed conversion ratio at the end of 21st and 42nd day of the experiment and the result was found to be encouraging for commercial enterprises when the chickens were fed at 150 mg Cu/kg (T2) of their diet. Excess dietary copper more than 150 mg/kg reduced the haemoglobin (Hb) concentration in blood and resulted in the accumulation of copper in the liver with decreased blood Hb concentration and packed cell volumes (PCV). Copper supplementation increased the total erythrocyte count (TEC) as copper is involved in erythropoiesis. But, from the result it is indicated that the dietary copper concentration could not alter the total leukocyte count (TLC). In case of different leucocytes count (DLC), there were no significant differences observed among the different treated groups. Statistical analysis showed significant (p<0.01) difference in plasma concentration of copper, zinc, ferrous and cholesterol among the different copper treated groups. The result indicates that supplementation of copper is an effective way of improving the production performance and haematological parameters in broiler chicken.
Keywords: Copper; Haemoglobin; Blood Parameters; Feed Intake; Broiler Chicken

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