THE INFLUENCE OF BOAR AGE ON EJACULATE QUALITY

摘要: Semen was harvested in two stages from boars aged 3, 4 and 7 years. In the first stage semen collected at 2 3 day intervals s econd after days. The quality of ejaculates twice a week increases with boar age to ye ars. After years ejaculate is reduced. Se men once has higher concentration an d spermatozoa increased motility. Sperm moti lity remarkable especially 5 A decrease collection frequency does not alter t he dynamic volume old are till most valuable, independent frequency. T boars' usage for can be prolonged if animals maintain their reproductive ability.