Acetaminophen, a non narcotic analgesic antipyretic drug, is effectively and regularly employed in the treatment of various bacterial infections and inflammatory conditions of the breeding bulls manifested with pain and fewer. Acetaminophen was administered in the breeding buffalo bulls @ 50 mg. Kg−1 body weight by intramuscular route for 5 days and the reproductive capacity of the bulls was studied by libido, service behaviour and reaction time. Eighteen ejaculates were collected from each bulls biweekly after the administration of drug. Three pretreatment ejaculates were taken before the start of experiment. There was significant decrease in the libido and service behaviour of bulls, however, the reaction time was increased significantly, following repeated parenteral administration of acetaminophen.
Acetaminophen, Buffalo, Bulls, Libido, Reaction time, Service behaviour
