Control of postpartum anestrous with an intra-vaginal progesterone device plus eCG or calf removal for 120 h in suckled crossbred cows managed in a pasture-based system.


To control postpartum anestrus and reduce calving to conception interval, 167 crossbred non-pregnant cows that were 90-130 days postpartum were allotted randomly to one of the following treatments: PH (n=59), intra-vaginal sponge with 250 mg of medroxyprogesterone acetate (MAP) for 7 days plus 50mg of MAP and 5mg 17-beta estradiol (17beta-E) in the first… (More)