Intensity of the biostimulatory effect of bulls on resumption of ovulatory activity in primiparous, suckled, beef cows

Animal Reproduction Science

Volumn 99, Issue 1-2, 2007, Pages 24-33

  Berardinelli, J G ^a   Tauck, S A ^a  

^a MONTANA STATE UNIVERSITY   (United States)

Author keywords

Biostimulation; Bovine; Bulls; Cycling activity; Postpartum interval

Indexed keywords

ANIMAL; ARTICLE; CATTLE; CLINICAL TRIAL; CONTROLLED CLINICAL TRIAL; CONTROLLED STUDY; CORPUS LUTEUM; ECHOGRAPHY; FEMALE; LACTATION; MALE; OVULATION; PARITY; PHYSIOLOGY; PREGNANCY; PUERPERIUM; RANDOMIZED CONTROLLED TRIAL; SEXUAL BEHAVIOR; SOCIAL BEHAVIOR; TIME;

ANIMALS; CATTLE; CORPUS LUTEUM; FEMALE; LACTATION; MALE; OVULATION; PARITY; POSTPARTUM PERIOD; PREGNANCY; SEXUAL BEHAVIOR, ANIMAL; SOCIAL BEHAVIOR; TIME FACTORS;

BOVINAE;

EID: 33847156818     PISSN: 03784320     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.anireprosci.2006.03.019     Document Type: Article

References (11)

1. Berardinelli J.G., and Joshi P.S. Introduction of bulls at different days postpartum on resumption of ovarian cycling activity in first-calf beef cows. J. Anim. Sci. 83 (2005) 2106-2110
2. Berardinelli J.G., and Joshi P.S. 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 (2005) 2495-2500
3. Custer E.E., Berardinelli J.G., Short R.E., Wehrman M., and Adair R. Postpartum interval to estrus and patterns of LH and progesterone in first-calf suckled beef cows exposed to mature bulls. J. Anim. Sci. 68 (1990) 1370-1377
4. Fernandez D.L., Berardinelli J.G., Short R.E., and Adair R. 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 (1993) 411-419
5. Fernandez D.L., Berardinelli J.G., Short R.E., and Adair R. Acute and chronic changes in LH secretion, and postpartum interval to estrus in first-calf suckled beef cows exposed continuously or intermittently to mature bulls. J. Anim. Sci. 74 (1996) 1098-1100
6. Fike K.E., Bergfeld E.G., Cupp A.S., Kojima F.N., Mariscal V., Sanchez T.S., Wehrman M.E., and Kinder J.E. Influence of fenceline bull exposure on duration of anoestrus and pregnancy rate in beef cows. Anim. Reprod. Sci. 41 (1996) 161-167
7. Izard M.K. Pheromones and reproduction in domestic animals. In: Vandenbergh J.G. (Ed). Pheromones and Reproduction in Mammals (1983), Academic Press, NY 253-285
8. NRC. Nutrient Requirements of Beef Cattle. seventh revised ed. (1996), Natl. Acad. Press, Washington, DC p. 227
9. SAS Institute Inc., 2004. SAS Version 9.0. SAS Institute Inc., Cary, NC, USA.
10. Shipka M.P., and Ellis L.C. No effects of bull exposure on expression of estrous behavior in high-producing dairy cows. Appl. Anim. Behav. Sci. 57 (1998) 1-7
11. Shipka M.P., and Ellis L.C. Effects of bull exposure on postpartum ovarian activity of dairy cows. Anim. Reprod. Sci. 54 (1999) 237-244