Allyl trenbolone to control estrus in gilts-conception rate and litter size after treatment (1979)

Authors

Duane L. Davis
J M. Robl
Jim L. Nelssen

Keywords

Swine day, 1979; Kansas Agricultural Experiment Station contribution; no. 80-136-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 371; Swine; Allyl trenbolone; Estrus; Gilts; Conception rate; Litter size

Abstract

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 During the feeding period the progestogen suppresses estrus in all gilts and when withdrawn from the feed, all animals are expected to come in heat 4 to 7 days later.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.; Swine Day, Manhattan, KS, November 8, 1979

Recommended Citation

Davis, Duane L.; Robl, J M.; and Nelssen, Jim L. (1979) "Allyl trenbolone to control estrus in gilts-conception rate and litter size after treatment (1979)," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 10. https://doi.org/10.4148/2378-5977.6044