PHYSIOLOGICAL RESPONSE, BLOOD PARAMETERS, AND REPRODUCTIVE PERFORMANCE OF BUFFALO COWS TREATED WITH ZINC METHIONINE AND NIACIN UNDER COOLING SYSTEM DURING SUMMER SEASON IN EGYPT | ||||
Journal of Animal and Poultry Production | ||||
Article 1, Volume 2, Issue 2, February 2011, Page 1-12 PDF (411.37 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jappmu.2011.83330 | ||||
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Authors | ||||
H. H. Khalifa1; A. M. Ashour1; M. M. Youssef2; M. M. Ghoneim2 | ||||
1dept. of Animal Production, Fac. Agric., Al-Azhar Univ., Nasr City, Cairo, Egypt | ||||
2Animal Production Res. Inst., Dokki, Giza, Egypt. | ||||
Abstract | ||||
Thirty Egyptian healthy female buffalo cows were used in this study. The experimental animals were divided into two similar groups (15 in each group). control (G1, non-cooling) and cooling group (G2). Each group was divided into three sub-groups (5 in each),control, supplemented with zinc methionine or niacin.Source of cooling water was the main concrete tank of the farm where temperature of the water ranged between 19-21 C0 at time of cooling. Results show that skin and rectal temperature degrees, and respiration rate decreased under cooling system. Cooling system decreased (P<0.05) haemoglobin concentration and packed cell volume (PCV %), while the effect of feed supplements was not significant. Zinc and Niacin supplements increased (P<0.05) total protein concentration in blood plasma only under cooling system. Albumin and glucose concentrations in blood plasma were not significantly effected. Blood urea nitrogen concentration in blood plasma decreased (P<0.05) in feed supplements under cooling groups. All groups of under cooling system showed shorter days open compared with those under non-cooling system, being the highest with Zn and Niacin supplementats. Zn and Niacin supplementation increased (P<0.05) conception rate under cooling system than those in the under non-cooling system. | ||||
Keywords | ||||
Buffalo cows; THI; haematology; blood biochemicals; Days open | ||||
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