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Journal of Dairy Science
Volume 93, Issue 3
, Pages 922-931
, March 2010
Supplementation of progesterone via controlled internal drug release inserts during ovulation synchronization protocols in lactating dairy cows1
References
- . Stage of cycle, incidence, and timing of ovulation, and pregnancy rates in dairy cattle after three timed breeding protocols. J. Dairy Sci. 2001;84:1051–1059
- . Progesterone concentration, follicular development and induction of cyclicity in dairy cows receiving intravaginal progesterone inserts. Anim. Reprod. Sci. 2009;110:56–70
- . Timed artificial insemination with estradiol cypionate or insemination at estrus in high-producing dairy cows. J. Dairy Sci. 2004;87:3704–3715
- . Reproduction in dairy cows following progesterone insert presynchronization and resynchronization protocols. J. Dairy Sci. 2006;89:4205–4219
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- . Effect of addition of a progesterone intravaginal insert to a timed insemination protocol using estradiol cypionate on ovulation rate, pregnancy rate, and late embryonic loss in lactating dairy cows. J. Anim. Sci. 2004;82:3508–3517
- . Follicular size and response to Ovsynch versus detection of estrus in anovular and ovular lactating dairy cows. J. Dairy Sci. 2003;86:3184–3194
- . Length of progesterone exposure needed to resolve large follicle anovular condition in dairy cows. Theriogenology. 2005;63:202–218
- . Preovulatory, postovulatory, and postmaternal recognition effects of concentrations of progesterone on embryonic survival in the cow. J. Anim. Sci. 2004;82(E Suppl.):E24–E39
- . Effect of concentrations of progesterone during a timed AI protocol on fertility of lactating dairy cows. J. Dairy Sci. 2008;91(Suppl. 1):256;(Abstr.)
- . Comparison of two estrus-synchronization protocols and timed artificial insemination in dairy cattle. J. Dairy Sci. 2006;89:4567–4572
- . Effects of presynchronization and bovine somatotropin on pregnancy rates to a timed artificial insemination protocol in lactating dairy cows. J. Dairy Sci. 2001;84:1646–1659
- . A modified presynchronization protocol improves fertility to timed artificial insemination in lactating dairy cows. J. Dairy Sci. 2004;87:1551–1557
- . Pregnancy rates per artificial insemination for cows and heifers inseminated at a synchronized ovulation or synchronized estrus. J. Dairy Sci. 1997;80:295–300
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- . Effect of bST and reproductive management on reproductive performance of Holstein dairy cows. J. Dairy Sci. 2004;87:868–881
- . Effect of timing of Cosynch on fertility of lactating Holstein cows after first postpartum and resynch timed-AI services. Theriogenology. 2007;67:1211–1216
- . Inseminations at estrus induced by presynchronization before application of synchronized estrus and ovulation. J. Dairy Sci. 2005;88:399–405
- . Treatment of cycling and noncycling lactating dairy cows with progesterone during Ovsynch. J. Dairy Sci. 2006;89:2567–2578
- . Detection of anovulation by heatmount detectors and transrectal ultrasonography before treatment with progesterone in a timed insemination protocol. J. Dairy Sci. 2008;91:2901–2915
PII: S0022-0302(10)00059-7
doi: 10.3168/jds.2009-2301
© 2010 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.
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Journal of Dairy Science
Volume 93, Issue 3
, Pages 922-931
, March 2010
