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Dairy Day, 2007

Dairy Day, 2007

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Times artifical insemination conception rates in response to a progesterone insert in lactating dairy cows

Martel, C.A; Buttery, B.S.; Burns, M.G.; Brown, W.E.; Stevenson, Jeffrey S. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-11-29)

Our objective was to determine the effectiveness of exogenous progesterone in the form of an intravaginal insert (controlled internal drug release, CIDR) in conjunction with an ovulation synchronization protocol in lactating ...
Human chorionic gonadotropin and GnRH effects on pregnancy survival in pregnant cows and resynchronized pregnancy rates

Buttery, B.S.; Burns, M.G.; Stevenson, Jeffrey S. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-11-29)

Experiments have shown human chorionic gonadotropin (hCG) to be more effective than gondadotropin releasing hormone (GnRH) as a means to ovulate follicles. Experiment 1 determined the effects of replacing the ...
Detection of noncyling cows by heatmount decectors and ultrasound before treatment with progesterone

Tenhouse, D.E.; Krisher, R.L.; Lamb, G.C.; Dahlen, C.R.; Larson, J.E.; Pursley, J.R.; Bello, Nora M.; Fricke, P.M.; Wiltbank, M.C.; Brusveen, D.J.; Burkhart, M.; Youngquist, R.S.; Garverick, H.A.; Stevenson, Jeffrey S. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-11-29)

Our objective was to determine accuracy of identifying anovulatory lactating dairy cows before the application of a timed AI protocol [with or without progesterone supplementation via a controlled internal drug release ...
Application of the progesterone (CIDR) insert in artificial insemination programs of dairy cattle

Stevenson, Jeffrey S. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-11-29)

Use of progesterone inserts (controlled interval drug release, CIDR) offers another option for synchronizing estrus and ovulation in replacement heifers and lactating dairy cows. Results indicate that heifers may be ...
Nutritional strategies for a healthy transition to lactation: an update

Bradford, Barry J. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-11-29)

Reducing cull rates and improving fertility in early lactation has a dramatic effect on the profitability of many dairies. Continuing research on transition cow nutrition has led to the development of an array of nutritional ...