Fixed-time artificial insemination of postpartum beef cows at 72 or 80 h after treatment with the MGA® Select protocol

Theriogenology

Volumn 61, Issue 7-8, 2004, Pages 1299-1305

  Stegner, J E ^a   Bader, J F ^a   Kojima, F N ^a   Ellersieck, M R ^a   Smith, M F ^a   Patterson, D J ^a  

^a UNIVERSITY OF MISSOURI   (United States)

Author keywords

Beef cows; Fixed time AI; GnRH; MGA Select protocol

Indexed keywords

GONADORELIN; MELENGESTROL ACETATE; PROGESTERONE; PROSTAGLANDIN F2 ALPHA;

ANIMAL; ANIMAL DISEASE; ARTICLE; ARTIFICIAL INSEMINATION; BLOOD; BREEDING; CATTLE; ESTRUS CYCLE; FEMALE; METHODOLOGY; PHYSIOLOGY; PREGNANCY; PUERPERIUM; TIME;

ANIMALS; BREEDING; CATTLE; DINOPROST; ESTRUS SYNCHRONIZATION; FEMALE; GONADOTROPIN-RELEASING HORMONE; INSEMINATION, ARTIFICIAL; MELENGESTROL ACETATE; POSTPARTUM PERIOD; PREGNANCY; PROGESTERONE; TIME FACTORS;

ANIMALIA;

EID: 1542289917     PISSN: 0093691X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.theriogenology.2003.07.023     Document Type: Article

References (9)

1. NAHMS. National Animal Health Monitoring Service, USDA, APHIS. Sparse use of reproductive management technology for beef heifers and cows. Fort Collins, CO: USDA-APHIS Center for Epidemiology and Animal Health; 1994. p. 1-3.
2. Patterson D.J., Kojima F.N., Smith M.F. Methods to synchronize estrous cycles of postpartum beef cows with melengestrol acetate. Prof. Anim. Sci. 19:2003;109-115.
3. Perry GA. Induction of cycling status and effect of follicle size on fertility in postpartum beef cows. Ph.D. dissertation, University of Missouri-Columbia; 2003.
4. Mussard M.L., Burke C.R., Gasser C.L., Behlke E.J., Colliflower K.A., Grum D.E.et al. Ovulatory response, luteal function and fertility in cattle induced to ovulate dominant follicles of early or late maturity. Biol. Reprod. 68(Suppl. 1):2003;332.
5. Perry G.A., Patterson D.J., Smith M.F. Evaluation of a fixed-time AI protocol for postpartum suckled beef cows. J. Anim. Sci. 80:2002;3060-3064.
6. Stegner JE. A comparison of the MGA Select and 7-11 Synch protocols. M.S. thesis, University of Missouri-Columbia; 2003.
7. Stevenson J.S., Johnson S.K., Milliken G.A. Incidence of postpartum anestrus in suckled beef cattle: treatments to induce estrus, ovulation, and conception. Prof. Anim. Sci. 19:2003;124-134.
8. Kirby C.J., Smith M.F., Keisler D.H., Lucy M.C. Follicular function in lactating dairy cows treated with sustained-release bovine somatotrophin. J. Dairy Sci. 80:1997;273-285.
9. 2α estrus synchronization treatment in beef heifers. J. Anim. Sci. 79:2001;2210-2216.