Interaction of season and nutrition on buffalo semen III Factors content and fructolysis index

ABSTRACT

Semen was collected from twelve sexually mature buffalo bulls kept under three systems of feeding for a full calendar year. The fructose concentration [mg/100m semen] and the fructolysis index were estimated during the last week of each season on four semen samples from each bull. The overall mean of fructose concentration was 500.4+10.0 100 ml semen and the fructolysis index was 1.5+0.1 mg/10[9] spermatozoa at 37 C. the fructose content of the whole semen was significantly different among the different groups of feeding and seasons. Highly significant [p<0.01] differences were observed in fructose utilization /-10[9] sperms among the different seasons, while the differences among groups under different systems of feeding were not apparent. Since the interactions of nutrition and season on the fructolysis were not appaeciable the significant differences in the fructolytic activity between the experimental groups can mainly be attributed to the changes in climatic conditions