Abstract
Eight cull Hereford cows were given 200-mg. injections of testosterone proprionate repository (Haver-Lockhart, Shawnee, KS) every other day for 20 days (10 injections). Four cows were given weekly booster injections with the same testosterone proprionate; the other four were injected every three weeks with testosterone enanthate (sigma Chemical Co., St. Lois, MO.). Each cow was equipped with a chin-ball marker and each was used to detect heat in other cows. The detection period lasted approximately 45 days. Testosterone-treated cows served satisfactorily as heat detectors; those given boosters of testosterone proprionate marked more cows in heat than those given testosterone enanthate.
Highlights
Volume 0 Issue 1 Cattleman's Day (1993-2014)
Testosterone-treated cows to aid in heat detection
Each cow was equipped with a chin-ball marker and each was used to detect heat in other cows
Summary
Volume 0 Issue 1 Cattleman's Day (1993-2014) Testosterone-treated cows to aid in heat detection Follow this and additional works at: https://newprairiepress.org/kaesrr
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