<![CDATA[The study was carried out to observe the influence of semen collectiontime toward the copulation behavior and the movement of massspermatozoa of garut rams. The semen of seven Garut rams wascollected twice a week. It indicates that the difference of semen collectiontime causes the difference of air temperature. The semen collected at6:00 am showed better mass sperm movement than at 12:00. Thesemen collected at 06:00 am; 9:00 am and 12.00 am did not show anyeffect toward the preejaculation copulation behavior. Otherwise thesemen collected at 06:00 am delivered longer intromisi period than at12:00 am.]]>
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