CERTAIN BIOCHEMICAL-CONSTITUENTS AND FREEZABILITY OF SEMEN OF HOLSTEIN-FRIESIAN, CROSSBRED AND MURRAH BULLS UNDER TROPICS

Seminal plasma of adult Murrah, Holstein-Friesian and triple crosses of Friesian and Hariana bulls were analysed for biochemical constituents like fructose, total protein,total cholesterol, sodium, potassium, acid-soluble phosphorus, ester phosphate, inorganic phorphorus and chloride. Fructose was higher and protein lower in buffaloes than in bulls. But inorganic phosphorus, acid-soluble phosphorus and ester phosphate were higher in Murrah than in bulls. Chloride, sodium, potassium were higher in bulls than in Murrah. Best freezability of semen was in HF. Murrah semen gave better results than crossbred bulls.