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Phone: 208-454-8657 Fax: 208-454-8659 Email:rchebel@uidaho.edu D.V.M. Paulista University, Brazil - Veterinary Medicine,
2000 RESEARCH INTERESTS: Production medicine with focus on reproductive biology and biotechnology of dairy and beef cattle. Hormonal manipulation of the estrous cycle to improve conception and reduce embryonic loss, superovulation and gamete cryopreservation techniques of bovine species.
RESEARCH SUMMARY: My research interest is focused on production medicine emphasizing
reproductive biology and biotechnology of dairy and beef cattle.
Recently, I have developed studies that evaluate the effects
of hormonal manipulation of the estrous cycle to improve conception
and reduce embryonic loss and to optimize superovulation response
in the bovine species. Moe specifically, I have concluded studies
that evaluate different methods of resynchronization of previously
inseminated dairy cows, factors affecting conception rate and
pregnancy loss in lactating dairy cows, superovulation protocols
in dairy heifers, effect of subcutaneous injection of PGF on
luteal regression, economical and reproductive efficacy of different
pre-synchronized protocols for dairy cows.
REPRESENTATIVE PUBLICATIONS: Galvão, K.N., J.E.P. Santos, A.C. Coscioni, S.O. Juchem, R.C. Chebel, W.M. Sischo, and M. Villasenor. (2006) Embryos from Gossypol Fed Donor Heifers Reduce Pregnancy Rates When Transferred into Lactating Dairy Cows Treated or not with hCG. J. Dairy Sci. 89:2056-2064 Moore DA, Overton MW, Chebel RC, Truscott ML, BonDurant RH. (2005) Evaluation of factors that affect embryonic loss in dairy cattle. J Am Vet Med Assoc. 226(7):1112-8. Cerri RL, Santos JE, Juchem SO, Galvao KN, Chebel RC. (2004) Timed artificial insemination with estradiol cypionate or insemination at estrus in high-producing dairy cows. J Dairy Sci. 87(11):3704-15. Chebel RC, Santos JE, Reynolds JP, Cerri RL, Juchem SO, Overton M. (2004) Factors affecting conception rate after artificial insemination and pregnancy loss in lactating dairy cows. Anim Reprod Sci. 84(3-4):239-55. Santos JE, Thatcher WW, Chebel RC, Cerri RL, Galvao KN. (2004) The effect of embryonic death rates in cattle on the efficacy of estrus synchronization programs. Anim Reprod Sci. 82-83:513-35. Santos JE, Juchem SO, Cerri RL, Galvao KN, Chebel RC, Thatcher WW, Dei CS, Bilby CR. (2004) Effect of bST and reproductive management on reproductive performance of Holstein dairy cows. J Dairy Sci. 87(4):868-81. Chebel RC, Santos JE, Cerri RL, Galvao KN, Juchem SO,
Thatcher WW. (2003) Effect of resynchronization with GnRH on
day 21 after artificial insemination on pregnancy rate and pregnancy
loss in lactating dairy cows. Theriogenology. 60(8):1389-99.
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