11 research outputs found
Donor Cells at the G1 Phase Enhance Homogeneous Gene Expression Among Blastomeres in Bovine Somatic Cell Nuclear Transfer Embryos
Allyl trenbolone to control estrus in gilts-effect of dose
Replacement gilts frequently do not fit smoothly into existing breeding and farrowing schedules because time of estrus cannot be predicted. Being able to program replacement gilts into a breeding herd would improve management, so we investigated the effectiveness of a synthetic progestogen,
allyl trenbolone , to control estrus in gilts. Allyl trenbolone is not presently available to swine producers
Allyl trenbolone to control estrus in gilts -conception rate and litter size after treatment
Control of estrus in gilts is theoretically possible by feeding a progestogen for 18 consecutive days. During the feeding period the progestogen suppresses estrus in all gilts and when withdrawn from the feed, all
animals are expected to come in heat 4 to 7 days later. To be useful, the synchronizing agent must meet two criteria: (1) it must effectively control the time of estrus, and (2) it must not adversely affect fertility. We conducted this trial to evaluate a progestogen, allyl trenbolone, with respect to these criteria. Allyl trenbolone is not presently available to swine producers