Studies on the value of a depot androgen-oestrogen preparation for early pregnancy diagnosis in cattle
Sistermanns, G., 1973: Studies on the value of a depot androgen-oestrogen preparation for early pregnancy diagnosis in cattle. Untersuchungen uber die Brauchbarkeit eines Depot Androgen Ostrogen Praparates zur Trachtigkeitsfruhdiagnose beim Rind: 51
A trial preparation containing 4 mg oestradiol valerianate, 65 mg testosterone oenanthate and 15 mg testosterone propionate per dose of 2 ml was injected into 39 heifers and 155 cows, 12-15 days after a first insemination (8-12 weeks after calving). 113 cows (59%) conceived after first insemination, compared with 62% of 187 untreated controls.