|
Joel
V. Yelich Department of Animal Sciences |
|
|
Teaching
Research
Publications
Education
Lab Personnel
ANS 3319C
Reproductive Physiology and Endocrinology Lab
Research is centered on the application of the advanced research
technologies to enhance and optimize reproductive efficiency in beef
cattle. Current research interest
include: manipulation of follicular growth and development to control ovulation
in beef cattle to maximize the effectiveness of estrous synchronization and
timed artificial insemination; the effect of nutrition on the onset of puberty
and fertility in pre-puberal and puberal yearling beef heifers;
characterization of early embryonic loss that occurs between day 30 to 60 of
gestation in beef cattle; and the influence of nutrition on follicular
development, return to estrus and rebreeding efficiency in postpartum beef
cows.
Refereed Journals
Bridges, G. A, G. E. Portillo, J. W.
de Araujo, W. W. Thatcher, and J V. Yelich. 2005. Efficacy of either a single or
split treatment of PGF2a after a 14 day melengestrol
acetate treatment to synchronize estrus and induce luteolysis in Bos indicus × Bos taurus
heifers. Theriogenology. 64:344-362.View pdf file
Hiers, E. A., C. R. Barthle, MK. V. Dahms, G. E. Portillo, G. A. Bridges, D. O. Rae, W. W. Thatcher, and J. V. Yelich. 2003. Synchronization of Bos indicus x Bos taurus cows for timed artificial insemination using gonadotropin-releasing hormone plus prostaglandin F2a in combination with melengestrol acetate. J. Anim. Sci. 81:830-835. View pdf file.
Williams de Araujo, J., R. E. Borgwardt, M. L.
Sween, J. V. Yelich, E. O. Price. 2003. Incidence
of repeat-breeding among Angus bulls (Bos taurus) differing in sexual performance. Appl. Anim.
Behav. Sci. 81:89-98. View pdf file.
Landaeta-Hernandez, A. J., J. V.
Yelich, J. W. Lemaster, T. Tran, M. J. Fields, C. C. Chase Jr, D. O. Rae, and
P.J.Chenoweth.
2002. Environmental,
genetic and social factors affecting the expression of estrus in beef cows. Theriogenology 57: 1357-1370. View pdf file.
Yelich, J. V. 2002. A vaginal insert (CIDR) to synchronize estrus and timed-AI. In: Factors Affecting Calf Crop: Biotechnology of Reproduction. Eds. , M.J. Fields, R. S. Sands, J. V. Yelich. CRC Press, Boca Raton, Fl. USA. Pp 87-100.
Lucy, M.C., H.J. Billings, W. R. Butler, L. R. Ehnis, M. J.
Fields, D. J. Kesler, J. E. Kinder, R. C. Mattos, R. E. Short, W. W. Thatcher,
R. P. Wettemann, J. V. Yelich, and H. D. Hafs. 2001. Efficacy of an intravaginal
progesterone insert and an injection of PGF2a for synchronizing estrus and shortening the
interval to pregnancy in postpartum beef cows, peripubertal heifers, and dairy
heifers. J. Anim. Sci. 79:982-995.
View pdf file.
Lemaster, J.W., J.V. Yelich, J.R. Kempfer, J.K. Fullenwider,
C.L. Barnett, M.D. Fanning, and J.F. Selph. 2001. Effectiveness of GnRH + Prostaglandin F2a for Synchronization of Estrus in Cattle of Bos
indicus Breeding. J. Anim. Sci. 79:309-316. View pdf file.
Lemaster, J. W., J. V. Yelich, J. R. Kempfer, and F. N.
Schrick. 1999. Ovulation
and Estrus Characteristics in Crossbred Brahman Heifers Treated with an
Intravaginal Progesterone-Releasing Insert in Combination with Prostaglandin F2a and Estradiol Benzoate. J. Anim. Sci.
77:1860-1868. View pdf file.
Geisert, R. D. and J. V. Yelich 1997. Regulation of conceptus development and attachment. In: Control of pig reproduction. J. Reprod. Fertil. (Suppl. 52):133-149.
Yelich, J. V., D. Pomp and R. D. Geisert. 1997. Ontogeny of elongation and gene expression in the early
developing porcine conceptus. Biol. Reprod. 57:1256-1265.
Yelich, J. V., D. Pomp and R. D. Geisert. 1997. Detection of transscripts for retinoic acid receptors, retinol binding protein, and transforming growth factors during rapid trophoblast elongation in the porcine conceptus. Biol. Reprod. 57:286-294.
Yelich, J. V., R. A. M. Schmitt, R. D. Geisert, G. L. Morgan and J. P. McCann. 1997. Persistence of the dominant follicle during melengestrol acetate administration and its regression induced by exogenous estrogen treatment in beef cows. J. Anim. Sci. 75:745 - 754.
Yelich J. V., R. P. Wettemann, T. T. Marston, and L. J. Spicer. 1996. Luteinizing hormone, growth hormone, insulin like growth factor-I, insulin and metabolites before puberty in heifers fed to gain at two rates. Dom. Anim. Endo. 13:325 - 338.
Yelich, J. V., M.D. Holland, D.N. Schutz and K.G. Odde. 1995. Synchronization of estrus in suckled postpartum beef cows with MGA, 48 hour calf removal and PGF2a. Theriogenology 43:401 410.
Yelich, J. V., H.S. Mauck, M.D.
Yelich J. V., R. P. Wettemann, H. G. Dolezal, K. S. Lusby, D. K. Bishop, and L. J. Spicer. 1995. Effect of growth rate on carcass composition and lipid partitioning at puberty and growth hormone, insulin-like growth factor I, and metabolites before puberty in beef heifers. J. Anim. Sci. 73:2390-2405.
Other Publications and Reports
The effect GnRH vs. No-GnRH at the initiation of a 7-d
CIDR synchronization treatment on AI pregnancy rates in postpartum lactating
Angus and Bos indicus x Bos taurus
cows. Araujo, J. W., A. Bridges, G. Portillo,
and J. V. Yelich. 2005.
Beef Cattle Report, Dept. of Anim. Sci.,
Comparison of two CIDR synchronization and AI treatments
in postpartum lactating Bos indicus x Bos taurus cows. Araujo, J. W., M. Austin, B. Austin, and J.
V. Yelich. 2005 Beef Cattle
Report, Dept. of Anim. Sci.,
Single
versus a split dose of PGF2a after a 14-d melengestrol
acetate treatment to synchronize estrus in crossbred Bos indicus beef heifers. Bridges, A.,
G. Portillo, MK Dahms, J. Araujo, and J. Yelich. 2003.
Beef Cattle Report, Dept. of Anim. Sci., Univ. of Florida, Gainesville.
pp 65-67. View pdf file
Efficacy of a single versus a split
dose of PGF2a
in a GnRH + PGF2a
synchronization protocol in lactating Angus and cattle of Bos indicus breeding. Bridges,
A., G. Portillo, MK. Dahms, J. Araujo, and J. Yelich. 2003. Beef
Cattle Report, Dept. of Anim. Sci., Univ. of Florida, Gainesville. pp
73-76. View pdf file
Comparison of different prostaglandin F2a
treatments in the GnRH + prostaglandinF2a
synchronization system in cattle of Bos
indicus breeding. Hiers, E., C. Barthle, MK. Dahms, G.
Portillo, A. Bridges, and J. Yelich. 2003. Beef Cattle Report,
Dept. of Anim. Sci., Univ. of Florida, Gainesville. pp 77-79. View pdf file
Duration of melengestrol acetate
treatment in a GnRH or estradiol benzoate/progesterone + prostaglandinF2a
synchronization system in cattle of Bos
indicus breeding. Dahms, MK., C.
Barthle, G. Portillo, B. Thatcher, and J. Yelich. 2003. Beef Cattle Report, Dept. of Anim.
Sci., Univ. of Florida, Gainesville. pp 81-84. View pdf file
Synchronization of lactating Angus and
crossbred Bos indicus cows with
GnRH or estradiol benzoate/progesterone + prostaglandin F2a
combined with melengestrol acetate. 2003
Dahms, MK., C. Barthle, G. Portillo, B. Thatcher, and J. Yelich. Beef
Cattle Report, Dept. of Anim. Sci.,
A New Reproduction Technology – The
CIDR. J. Yelich. 2001 Florida Cattlemen’s Institute.
Estradiol Benzoate Administered in
Combination with an Intravaginal Progesterone-Releasing Device (CIDR) Results
in Follicular Turnover in Crossbred Cattle of Bos indicus Breeding. Fullenwider, J., R. Kempfer, C. Barnett, and
J. Yelich. 2001 Beef Cattle Report, Dept. of Animal Sci., Univ. of Florida,
Gainesville, pp 40-41. View pdf file.
Use of Intravaginal Progesterone-Releasing
Device (CIDR) for Timed Artificial Insemination (AI) in Crossbred Cattle of Bos
indicus Breeding. Fullenwider, J., R. Kempfer, C. Barthle, W.
Lemaster, and J. Yelich. 2001 Beef Cattle Report, Dept. of Animal Sci., Univ.
of Florida, Gainesville, pp 36-40. View pdf file.
Synchronization of Estrus with an
Intravaginal Progesterone-Releasing Device (CIDR) in Lactating Cows Containing
Some Bos indicus Breeding.
Yelich, J., R. Kempfer, J. Fullenwider, G. Portillo, C. Barthle, and W.
Lemaster. 2001 Beef Cattle Report, Dept.
of Animal Sci., Univ. of Florida, Gainesville, pp 34-36. View pdf file.
The above pdf
files can be viewed with Adobe Acrobat, which can be downloaded by clicking on
this icon: 
PhD Oklahoma State University, 1994, Animal
Science (Breeding and Reproduction)
MS Colorado State University, 1989, Animal
Science (Reproductive Physiology)
BS Montana State University, 1986, Animal
Science
Lab Personnel
Brad
Austin – Lab Technician (Ph D Candidate)
Graduate Students
Regina
Erin McKinniss (MS)
Page maintained by J. V. Yelich
Last updated August 29, 2007