Timing of artificial insemination in postpartum beef cows following administration of the CO-Synch + controlled internal drug-release protocol

Journal of Animal Science

Volumn 86, Issue 7, 2008, Pages 1519-1525

  Busch, D C ^a   Schafer, D J ^b   Wilson, D J ^a   Mallory, D A ^a   Leitman, N R ^a   Haden, J K ^b   Ellersieck, M R ^a   Smith, M F ^a   Patterson, D J ^a  

^a UNIVERSITY OF MISSOURI   (United States)

^b MFA Inc   (United States)

Author keywords

Artificial insemination; Beef cow; Controlled internal drug release insert; Estrous synchronization; Pregnancy rate

Indexed keywords

GONADORELIN; PROGESTERONE; PROSTAGLANDIN F2 ALPHA;

ANIMAL; ANIMAL DISEASE; ARTICLE; ARTIFICIAL INSEMINATION; BLOOD; CATTLE; CHI SQUARE DISTRIBUTION; COMPARATIVE STUDY; DELAYED RELEASE FORMULATION; DRUG EFFECT; ECHOGRAPHY; ESTRUS CYCLE; FEMALE; LACTATION; MALE; METHODOLOGY; PHYSIOLOGY; PREGNANCY; PREGNANCY RATE; PUERPERIUM; TIME;

ANIMALS; CATTLE; CHI-SQUARE DISTRIBUTION; DELAYED-ACTION PREPARATIONS; DINOPROST; ESTRUS SYNCHRONIZATION; FEMALE; GONADOTROPIN-RELEASING HORMONE; INSEMINATION, ARTIFICIAL; LACTATION; MALE; POSTPARTUM PERIOD; PREGNANCY; PREGNANCY RATE; PROGESTERONE; TIME FACTORS; ULTRASONOGRAPHY, PRENATAL;

EID: 47849130526     PISSN: 00218812     EISSN: None     Source Type: Journal    
DOI: 10.2527/jas.2008-0925     Document Type: Article

References (18)

1. Bader, J. F., F. N. Kojima, D. J. Schafer, J. E. Stegner, M. R. Ellersieck, M. F. Smith, and D. J. Patterson. 2005. A comparison of progestin-based protocols to synchronize ovulation and facilitate fixed-time artificial insemination in postpartum beef cows. J. Anim. Sci. 83:136-143.
2. Bremer, V. R., S. M. Damiana, F. A. Ireland, D. B. Faulkner, and D. J. Kesler. 2004. Optimizing the interval from PGF to timed AI in the CO-Synch+CIDR and 7-11 Synch estrus synchronization protocols for postpartum beef cows. J. Anim. Sci. 82(Suppl. 2):106.
3. Busch, D. C., J. A. Atkins, J. F. Bader, D. J. Schafer, D. J. Patterson, T. W. Geary, and M. F. Smith. 2008. Effect of ovulatory follicle size and expression of estrus on progesterone secretion in beef cows. J. Anim. Sci. 86:553-563.
4. Ciccioli, N. H., R. P. Wettemann, L. J. Spicer, C. A. Lents, F. J. White, and D. H. Keisler. 2003. Influence of body condition at calving and postpartum nutrition on endocrine function and reproductive performance of primiparous beef cows. J. Anim. Sci. 81:3107-3120.
5. Dobbins, C. A., D. E. Tenhouse, D. R. Eborn, K. R. Harmony, S. K. Johnson, and J. S. Stevenson. 2006. Conception rates after altered timing of AI associated with the CO-Synch + CIDR protocol. J. Anim. Sci. 84(Suppl. 1):50.
6. Kirby, C. J., M. F. Smith, D. H. Keisler, and M. C. Lucy. 1997. Follicular function in lactating dairy cows treated with sustained-release bovine somatropin. J. Dairy Sci. 80:273-285.
7. 2α for ovulation control in postpartum suckled beef cows. J. Anim. Sci. 79:2253-2259.
8. 2α, and progesterone. J. Anim. Sci. 84:332-342.
9. National Animal Health Monitoring System. 1997 Part 1: Reference of 1997 beef cow-calf management practices. http://nahms.aphis.usda.gov/beefcowcalf/ beef97/bf97pt1/pdf Accessed Oct. 24, 2007.
10. National Animal Health Monitoring System. 1998. Part IV. Changes in the U.S. Beef Cow-Calf Industry. 1993-1997. USDA-Animal and Plant Health Inspection Service, Center for Epidemiology and Animal Health, Fort Collins, CO.
11. North Central Region Bovine Reproductive Task Force. 2006. Estrus synchronization protocols for cows, http://westcentral.unl.edu/beefrepro/pdfs/ cowaisynchprotocols.pdf. Accessed Jan. 24, 2006.
12. Patterson, D. J., D. C. Busch, N. R. Leitman, D. J. Wilson, D. A. Mallory, and M. F. Smith. 2007. Estrus synchronization protocols for heifers. Pages 63-97 in Proc. Appl. Reprod. Strategies in Beef Cattle, Billings, MT.
13. Patterson, D.J., F.N. Kojima, and M.F. Smith. 2003a. A review of methods to synchronize estrus in replacement beef heifers and postpartum cows. J. Anim. Sci. 81 (E. Suppl. 2):E166-E177.
14. Patterson, D. J., F. N. Kojima, and M. F. Smith. 2003b. Methods to synchronize estrous cycles of postpartum beef cows with melengestrol acetate. Prof. Anim. Sci. 19:109-115.
15. Perry, G. A., M. F. Smith, M. C. Lucy, J. A. Green, T. E. Parks, M. D. MacNeil, A. J. Roberts, and T. W. Geary. 2005. Relationship between follicle size at insemination and pregnancy success. Proc. Natl. Acad. Sci. USA 102:5268-5273.
16. Richards, M. W., J. C. Spitzer, and M. B. Warner. 1986. Effect of varying levels of postpartum nutrition and body condition at calving on subsequent reproductive performance in beef cattle. J. Anim. Sci. 62:300-306.
17. Schafer, D. J., J. F. Bader, J. P. Meyer, J. K. Haden, M. R. Ellersieck, M. C. Lucy, M. F. Smith, and D. J. Patterson. 2007. Comparison of progestin-based protocols to synchronize estrus and ovulation before fixed-time artificial insemination in postpartum beef cows. J. Anim. Sci. 85:1940-1945.
18. Zelinski, M. B., N. A. Hirota, E. J. Keenan, and F. Stormshak. 1980. Influence of exogenous estradiol-17 β on endometrial progesterone and estrogen receptors during the luteal phase of the ovine estrous cycle. Biol. Reprod. 23:743-751.