repeat breeder

repeat breeder

said of cows that have no apparent physical abnormality of the reproductive tract and have normal estral cycles but fail to conceive to matings at two or more successive estral periods. Called also FTC.
References in periodicals archive ?
ABSTRACT: Fifty repeat breeder (RB) Friesian cows were allocated to five groups of 10 cows each, to determine the effect of progesterone (P4) supplement on P4 concentrations and pregnancy rates during the periods of corpus luteum (CL) formation and development between days 2-7 and 7-12 following a spontaneous or [PGF.
While GnRH injections failed to increase pregnancy rates in normal heifers, GnRH improved pregnancy rates in repeat breeder cows (Lee et al.
Efficacy of gonadotropin--releasing hormone administered at the time of artificial insemination of heifers and postpartum and repeat breeder dairy cows.
Effect of progesterone supplementation in repeat breeder cattle on conception and plasma progesterone.