1 |
Pursley JR, Mee MO, Wiltbank MC. Synchronization of ovulation in dairy cows using PGF and GnRH. Theriogenology 1995; 44: 915-923.
DOI
ScienceOn
|
2 |
Stevenson JS, Phatak AP. Inseminations at estrus induced by presynchronization before application of synchronized estrus and ovulation. J Dairy Sci 2005; 88: 399-405.
DOI
ScienceOn
|
3 |
Tenhagen BA, Drillich M, Surholt R, Heuwieser W. Comparison of timed AI after synchronized ovulation to AI at estrus: reproductive and economic considerations. J Dairy Sci 2004; 87: 85-94.
DOI
ScienceOn
|
4 |
Vasconcelos JLM, Silcox RW, Rosa GJM, Pursley JR, Wiltbank MC. Synchronization rate, size of the ovulatory follicle, and pregnancy rate after synchronization of ovulation beginning on different days of the estrus cycle in lactating dairy cows. Theriogenology 1999; 52: 1067-1078.
DOI
ScienceOn
|
5 |
Wiltbank M, Lopez H, Sartori R, Sangsritavong S, Gümen A. Changes in reproductive physiology of lactating dairy cows due to elevated steroid metabolism. Theriogenology 2006; 65: 17-29.
DOI
ScienceOn
|
6 |
National Research Council. Nutrient Requirements of Dairy Cattle. 7th revised edition, Washington, DC: National Academy Press; 2001.
|
7 |
Navanukraw C, Redmer DA, Reynolds LP, Kirsch JD, Grazul-Bilska AT, Fricke PM. A modified presynchronization protocol improves fertility to timed artificial insemination in lactating dairy cows. J Dairy Sci 2004; 87: 1551-1557.
DOI
ScienceOn
|
8 |
Pursley JR, Kosorok MR, Wiltbank MC. Reproductive management of lactating dairy cows using synchronization of ovulation. J Dairy Sci 1997; 80; 301-306.
DOI
ScienceOn
|
9 |
Stevenson JS. Reproductive management of dairy cows in high milk-producing herds. J Dairy Sci 2001; 84(E Suppl): E128-E143.
|
10 |
Britt JH. Strategies for managing reproduction and controlling health problems in groups of cows. J Dairy Sci 1977; 60: 1345-1353.
DOI
|
11 |
Butler WR, Smith RD. Interrelationships between energy balance and postpartum reproductive function in dairy cattle. J Dairy Sci 1989; 72: 767-783.
DOI
ScienceOn
|
12 |
Fricke PM, Caraviello DZ, Weigel KA, Welle ML. Fertility of dairy cows after resynchronization of ovulation at three intervals following first timed insemination. J Dairy Sci 2003; 86: 3941-3950.
DOI
ScienceOn
|
13 |
Moreira F, Orlandi C, Risco CA, Mattos R, Lopes F, Thatcher WW. 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.
DOI
ScienceOn
|