Place of publishing:
A total of 66 bison were under study, both males and females, at ages ranging from 1.5 months to 21 years. These were animals eliminated from the population as a result of sanitary shots carried out in several breeding centres of Poland in 1982-1985. The concentration of creatine and its proportion in the pool of total nitrogen of muscles and variability of these traits were higher in bison than in cattle and in bison and cattle hybrids. No significant effect of sex or age on these traits was recorded.