Pregnancy rate to the Ovsynch protocol can be improved if cows are presynchronized (ie,
two PGF2α injections given 14 days apart and the second injection of PGF2α given 12 days …

An intravaginal progesterone insert (CIDR insert; 1.38 g of progesterone) was evaluated for
synchronization of returns to estrus (SR), conception rate (CR), and pregnancy rate (PR) in …

Our objective was to develop treatments applied to cattle of unknown pregnancy status that
would resynchronize the repeat estrus of nonpregnant females. In Exp. 1, previously …

This is the very first report that suggests high pregnancy rates can be obtained with use of
the Doublesynch protocol in anestrous dairy cows. Recently, a new synchronization method …

The objective was to compare pregnancy rates and pregnancy losses in lactating dairy cows
that were diagnosed not pregnant and re-inseminated following either the Ovsynch® or …

The objectives of this study were to evaluate the effects of flunixin meglumine (FM), an
inhibitor of PGF2α synthesis, and insertion of an intravaginal progesterone-releasing device …

Experiments were conducted to investigate (a) the timing of ovulation and the associated
endocrine changes (progesterone, estrogen and LH) during estrous cycle and (b) the …

Conception to synchronized ovulation (Ovsynch) using injections of GnRH and PGF2α and
timed artificial insemination has been shown to be maximized when the program is initiated …

La investigación consistió en evaluar el uso de dos protocolos de sincronización
modificados y su efecto en parámetros reproductivos en vaquillas de aptitud lechera en la …

Reproductive efficiency of cattle operations is suboptimal primarily due to: 1) failure of
estrous cycles to resume after parturition, 2) poor fertility, and 3) poor detection of estrus in …