Conception rates to artificial insemination in primiparous, suckled cows exposed to the biostimulatory effect of bulls before and during a gonadotropin-releasing hormone-based estrus synchronization protocol

Journal of Animal Science

Volumn 85, Issue 3, 2007, Pages 848-852

  Berardinelli, J G ^a   Joshi, P S ^a,b   Tauck, S A ^a  

^a MONTANA STATE UNIVERSITY   (United States)

^b OHIO STATE UNIVERSITY   (United States)

Author keywords

Biostimulation; Bovine; Conception rate; Estrus synchronization; Fixed time artificial insemination; Postpartum

Indexed keywords

BOVINAE;

FERTILITY PROMOTING AGENT; GONADORELIN; PHEROMONE; PROSTAGLANDIN F2 ALPHA;

ANIMAL; ANIMAL DISEASE; ARTICLE; ARTIFICIAL INSEMINATION; CATTLE; CLINICAL TRIAL; CONTROLLED CLINICAL TRIAL; CONTROLLED STUDY; ESTRUS CYCLE; FEMALE; MALE; METHODOLOGY; ODOR; PARITY; PHYSIOLOGY; PREGNANCY; SEASON;

ANIMALS; CATTLE; DINOPROST; ESTRUS SYNCHRONIZATION; FEMALE; FERTILITY AGENTS; GONADOTROPIN-RELEASING HORMONE; INSEMINATION, ARTIFICIAL; MALE; ODORS; PARITY; PHEROMONES; PREGNANCY; SEASONS;

EID: 34247143389     PISSN: 00218812     EISSN: None     Source Type: Journal    
DOI: 10.2527/jas.2005-763     Document Type: Article

References (18)

1. Berardinelli, J. G. 1987. Shortening the anestrous period. Montana AgResearch 4:25-28.
2. Berardinelli, J. G., and P. S. Joshi. 2005a. Introduction of bulls at different days postpartum on resumption of ovarian cycling activity in first-calf beef cows, J. Anim. Sci. 83:2106-2110.
3. Berardinelli, J. G., and P. S. Joshi. 2005b. Resumption of postpartum ovarian cycling activity in primiparous restricted suckled beef cows exposed to a bull or excretory products of bulls or cows. J. Anim. Sci. 83:2495-2500.
4. Berardinelli, J. G., P. S. Joshi, and S. A. Tauck. 2005. Postpartum resumption of ovarian cycling activity in first-calf suckled beef cows exposed to familiar or unfamiliar bulls. Anim. Reprod. Sci. 90:201-209.
5. Custer, E. E., J. G. Berardinelli, R. E. Short, M. Wehrman, and R. Adair. 1990. Postpartum interval to estrus and patterns of LH and progesterone in first-calf suckled beef cows exposed to mature bulls. J. Anim. Sci. 68:1370-1377.
6. Fernandez, D., J. G. Berardinelli, R. E. Short, and R. Adair. 1993. Temporal requirement for the presence of mature bulls to alter the postpartum period to resumption of ovarian cycling activity and reproductive performance in first-calf suckled beef cows. Theriogenology 39:411-419.
7. Fike, K. E., E. G. Bergfeld, A. S. Cupp, F. N. Kojima, V. Mariscal, T. S. Sanchez, M. E. Wehrman, and J. E. Kinder. 1996. Influence of fenceline bull exposure on duration of anoestrus and pregnancy rate in beef cows. Anim. Reprod. Sci. 41:161-167.
8. Geary, T. W., E. R. Downing, J. E. Bruermmer, and J. C. Whittier. 1999. Effects of a timed insemination following synchronization of ovulation using the Ovsynch or CO-Synch protocol in beef cows. Prof. Anim. Sci. 16:1-5.
9. Geary, T. W., J. C. Whittier, D. M. Hallford, and M. D. MacNeil. 2001. Calf removal improves conception rates to the Ovsynch and COSynch protocols. J. Anim. Sci. 79:1-4.
10. Jordan, E. R., M. J. Shouten, J. W. Quast, A. P. Belschner, and M. A. Tomaszewski. 2002. Comparison of two timed artificial insemination (TAI) protocols for management of first insemination postpartum. J. Dairy Sci. 85:1002-1008.
11. 2α for ovulation control in postpartum suckled beef cows, J. Anim. Sci. 79:2253-2259.
12. 2α for estrus synchronization in cattle of Bos indicus breeding. J. Anim. Sci. 79:309-316.
13. NRC. 1996. Pages 227 in Nutrient Requirements of Beef Cattle. 7th rev. ed. Natl. Acad. Press, Washington, DC.
14. Rhodes, F. M., S. McDougall, C. R. Burke, G. A. Verkerk, and K. L. Macmillian. 2003. Treatment of cows with an extended anestrous interval. J. Dairy Sci. 86:1876-1894.
15. Short, R. E., R. A. Bellows, R. B. Staigmiller, D. C. Adams, and J. G. Berardinelli. 1994. Effects of suckling on postpartum reproduction. Pages 179-187 in Factors Affecting Calf Crop. M. J. Fields and R. S. Sand, ed. CRC Press, Boca Raton, FL.
16. 2α. J. Anim. Sci. 77:1823-1832.
17. Wright, I. A., S. M. Rhind, A. J. Smith, and T. K. Whyte. 1994. Female-female influences on the duration of the post-partum anoestrous period in beef cows. Anim. Prod. 59:49-53.
18. Yavas, Y., and J, S. Walton, 2000. Postpartum acyclicity in suckled beef cows: A review. Theriogenology 54:25-55.