Effect of Dietary Phosphorus Supplementation on Growth and Nutrient Utilization in Camel Calves

Nine Bikanerl male camel calves (1.5 years), randomly divided into 3 equal groups, were individually offered Guar phalgati (Cyamopsis tetragonoloba) ad lib. and 0.5 kg guar seed meal. Sodium dihydrogen phosphate (Glaxo) was supplemented to the guar seed meal in groups II and III. The Ca:P ratio in group I, II and III was 5.06:1, 2.22:1 and 1.28:1, respectively. There were no significant differences among groups in respects of feed efficiency, growth, nutrient digestibility except EE and nutrient intake. The dietary Ca: P ratio did not alter the absorption of Na, Ca, Mg, Cu and Zn. However, potassium absorption increased (P<0.05) from 90.7% in group I to 96.0% in group III. The absorption of phosphorus Increased (P<0.01) from 29.1% in group I to 74.4% in group II and then decreased to 57.5% in group III. Phosphorus supplementation increased blood haemoglobin from 10.3% in group I to 14.0% in group III decreased serum Na and alkaline phosphatase (ALP) levels (P<0.05) however, WBC increased (P<0.01) in group III. The results indicated that the Ca:P ratio of 2.22:1 promoted EE digestibility, P absorption besides raising WBC and was optimum for the nutrient utilization and growth of young camel calves.