Projects

IMPROVE NUTRIENT MANAGEMENT AND EFFICIENCY IN CATTLE Appropriated (D)   Accession Number: 412409

Publications

MicroRNA expression profile in bovine cumulus-oocyte complexes during late oogenesis - (Abstract) - (23-Sep-08)

Confirmation of QTL using a low density SNP map for twinning and ovulation rate on bovine chromosome 5 - (Peer Reviewed Journal) - (02-Sep-08)

Comparisons of mRNA expression for aromatase, FSH receptor, and IGF-I in the granulosa of small ovarian follicles between cattle selected and unselected for twin ovulations - (Abstract)

Echternkamp, S., Cushman, R., Spicer, L. 2008. Comparisons of mRNA expression for aromatase, FSH receptor, and IGF-I in the granulosa of small ovarian follicles between cattle selected and unselected for twin ovulations [abstract]. Biology of Reproduction. Special Issue:81 (Abstract #123).

The hedgehog system in ovarian follicles of cattle selected for twin ovulations and births: evidence of a link between the IGF and hedgehog systems - (Abstract)

Aad, P., Spicer, L., Echternkamp, S. 2008. The hedgehog system in ovarian follicles of cattle selected for twin ovulations and births: Evidence of a link between the IGF and hedgehog systems [abstract]. Biology of Reproduction. Special Issue:109-110 (Abstract #242).

Relationship of antral follicle counts to fertility and ovarian AMH mRNA levels in beef cows - (Abstract)

Cushman, R., Miles, J., Allan, M., Kuehn, L., Echternkamp, S., Freetly, H. 2008. Relationship of antral follicle counts to fertility and ovarian AMH mRNA levels in beef cows [abstract]. Biology of Reproduction. Special Issue:224 (Abstract #722).

Evidence for possible involvement of IGF type II receptors (IGF2R) in regulating growth of two concomitant dominant follicles in cattle - (Abstract)

Aad, P.Y., Echternkamp, S.E., Spicer, L.J. 2008. Evidence for possible involvement of IGF type II receptors (IGF2R) in regulating growth of two concomitant dominant follicles in cattle [abstract]. Journal of Animal Science. 86 (E-Supplement 3):10 (Abstract #38).

Increased calf production in cattle selected for twin ovulations - (Peer Reviewed Journal)

Echternkamp, S.E., Thallman, R.M., Cushman, R.A., Allan, M.F., Gregory, K.E. 2007. Increased calf production in cattle selected for twin ovulations. Journal of Animal Science. 85(12):3239-3248.

Effects of ovulation rate and fetal number on fertility in twin-producing cattle - (Peer Reviewed Journal)

Echternkamp, S.E., Cushman, R.A., Allan, M.F., Thallman, R.M., Gregory, K.E. 2007. Effects of ovulation rate and fetal number on fertility in twin-producing cattle. Journal of Animal Science. 85(12):3228-3238.

Identification of indicator traits of fertility in the postpartum beef cow - (Abstract)

Cushman, R., Echternkamp, S., Allan, M., Freetly, H. 2007. Identification of indicator traits of fertility in the postpartum beef cow [abstract]. Biology of Reproduction. Special Issue:187-188.

Increasing ovulation rate reduced follicle size and increased blood progesterone concentrations but had no effect on fertility in cattle selected for twins - (Abstract)

Echternkamp, S.E., Cushman, R.A., Allan, M.F. 2007. Increasing ovulation rate reduced follicle size and increased blood progesterone concentrations but had no effect on fertility in cattle selected for twins [abstract]. Journal of Animal Science. 85 (Supplement 1):649. (Abstract #886)

Fine mapping of QTL for twinning and ovulation rate using low density SNP map in conjunction with microsatellite marker information in the USMARC twinning population - (Abstract)

Allan, M.F., Thallman, R.M., Cushman, R.A., Echternkamp, S.E., Kuehn, L.A., Snelling, W.M. 2007. Fine mapping of QTL for twinning and ovulation rate using low density SNP map in conjunction with microsatellite marker information in the USMARC twinning population [abstract]. Plant & Animal Genome XV Conference. Poster No. 521. p. 231.

ASSOCIATION OF A SINGLE NUCLEOTIDE POLYMORPHISM IN SPP1 WITH GROWTH TRAITS AND TWINNING IN A CATTLE POPULATION SELECTED FOR TWINNING RATE - (Peer Reviewed Journal)

Allan, M.F., Thallman, R.M., Cushman, R.A., Echternkamp, S.E., White, S.N., Kuehn, L.A., Casas, E., Smith, T.P. 2007. Association of a single nucleotide polymorphism in spp1 with growth traits and twinning in a cattle population selected for twinning rate. Journal of Animal Science. 85(2):341-347.

LARGE VARIATION IN STEROID CONCENTRATIONS AND INSULIN-LIKE GROWTH FACTOR BINDING PROTEINS EXISTS AMONG INDIVIDUAL SMALL ANTRAL FOLLICLES COLLECTED FROM WITHIN COWS AT VARIOUS STAGES OF ESTROUS CYCLE - (Peer Reviewed Journal)

Roberts, A.J., Al-Hassan, M.J., Fricke, P.M., Echternkamp, S.E. 2006. Large variation in steroid concentrations and insulin-like growth factor binding proteins exists among individual small antral follicles collected from within cows at various stages of estrous cycle. Journal of Animal Science 84:2714-2724.

LOCALIZATION OF PERIOD 1 MRNA IN THE RUMINANT OOCYTE AND INVESTIGATIONS OF ITS ROLE IN OVARIAN FUNCTION - (Peer Reviewed Journal)

Cushman, R.A., Allan, M.F., Jones, S.A., Rupp, G.P., Echternkamp, S.E. 2007. Localization of Period 1 mRNA in the ruminant oocyte and investigations of its role in ovarian function. Animal Reproduction Science. 99(1-2):93-105.

RELATIONSHIP OF CIRCULATING PROGESTERONE CONCENTRATIONS TO OVULATION RATE AND FERTILITY IN CATTLE SELECTED FOR TWIN OVULATIONS - (Abstract)

Echternkamp, S.E., Cushman, R.A., Allan, M.F. 2006. Relationship of circulating progesterone concentrations to ovulation rate and fertility in cattle selected for twin ovulations [abstract]. Biology of Reproduction. (Supplement):139. (Abstract #301)

IGF TYPE II RECEPTOR GENE EXPRESSION IN GRANULOSA AND THECA CELLS OF CATTLE SELECTED FOR TWIN OVULATIONS AND BIRTHS - (Abstract)

Aad, P.Y., Echternkamp, S.E., Spicer, L.J. 2006. IGF type II receptor gene expression in granulosa and theca cells of cattle selected for twin ovulations and births. Biology of Reproduction. (Supplement):173. (Abstract #454)

INHIBITION OF VASCULAR ENDOTHELIAL GROWTH FACTOR SIGNALING BLOCKS PRIMORDIAL FOLLICLE ACTIVATION IN BOVINE OVARIAN CORTICAL CULTURES - (Abstract)

Cushman, R.A., Allan, M.F., Clopton, D.T., Echternkamp, S.E., Cupp, A.S. 2006. Inhibition of vascular endothelial growth factor signaling blocks primordial follicle activation in bovine ovarian cortical cultures [abstract]. Biology of Reproduction. (Supplement):144. (Abstract #325)

INCREASED VASCULAR ENDOTHELIAL GROWTH FACTOR AND PREGNANCY-ASSOCIATED GLYCOPROTEINS, BUT NOT INSULIN-LIKE GROWTH FACTOR-I, IN MATERNAL BLOOD OF COWS GESTATING TWIN FETUSES - (Peer Reviewed Journal)

Echternkamp, S.E., Vonnahme, K.A., Green, J.A., Ford, S.P. 2006. Increased vascular endothelial growth factor and pregnancy-associated glycoproteins, but not insulin-like growth factor-I, in maternal blood of cows gestating twin fetuses. Journal of Animal Science. 84(8):2057-2064.

EFFECTS OF OVULATION RATE AND FETAL NUMBER ON FERTILITY IN TWIN-PRODUCING CATTLE - (Abstract)

Echternkamp, S.E., Cushman, R.A., Allan, M.F. 2006. Effects of ovulation rate and fetal number on fertility in twin-producing cattle [abstract]. Journal of Animal Science. 84 (Supplement 1):152. (Abstract #209)

LOCALIZATION OF PERIOD 1 MRNA IN THE RUMINANT OOCYTE AND INVESTIGATIONS OF ITS ROLE IN OVARIAN FUNCTION - (Abstract)

Cushman, R.A., Allan, M.F., Jones, S., Rupp, G.P., Echternkamp, S.E. 2006. Localization of Period 1 mRNA in the ruminant oocyte and investigations of its role in ovarian function [abstract]. Journal of Animal Science. 84 (Supplement 1):452-453. (Abstract #641)

OBSERVED AND PREDICTED NUMBERS OF SINGLE, TWIN, AND TRIPLET BIRTHS IN A CATTLE POPULATION SELECTED FOR INCREASED TWINNING - (Abstract)

Bennett, G.L., Allan, M.F., Cushman, R.A., Echternkamp, S.E. 2006. Observed and predicted numbers of single, twin, and triplet births in a cattle population selected for increased twinning [abstract]. Journal of Animal Science 84(Suppl. 1):203.

RELATIONSHIP BETWEEN CONCENTRATIONS OF PREGNANCY-ASSOCIATED GLYCOPROTEINS (PAG) IN MATERNAL BLOOD AND FETAL NUMBER AND STATUS IN PREGNANT COWS - (Abstract)

Echternkamp, S.E., Green, J.A., Vonnahme, K.A., Cushman, R.A., Allan, M.F. Relationship between concentrations of pregnancy-associated glycoproteins (PAG) in maternal blood and fetal number and status in pregnant cows. Journal of Animal Science. 84(Supplement 2):127. (Abstract #301)

REGULATION OF THE OVINE INTERFERON-TAU GENE BY A BLASTOCYST-SPECIFIC TRANSCRIPTION FACTOR, CDX2 - (Peer Reviewed Journal)

Imakawa, I., Kim, M.-S., Matsuda-Minehata, F., Ishida, S., Iizuka, M., Suzuki, M., Chang, K.-T., Echternkamp, S.E., Christenson, R.K. 2006. Regulation of the ovine interferon-tau gene by a blastocyst-specific transcription factor, Cdx2. Molecular Reproduction and Development. 73(5):559-567.

COMPARISON OF FERTILITY, LUTEAL CHARACTERISTICS, AND LUTEAL FUNCTION BETWEEN UNILATERAL AND BILATERAL DOUBLE OVULATIONS - (Abstract)

Cushman, R., Allan, M., Christenson, R., Echternkamp, S. 2006. Comparison of fertility, luteal characteristics, and luteal function between unilateral and bilateral double ovulations [abstract]. Journal of Animal Science. 84 (Supplement 2):127. (Abstract #300)

REGULATION OF CONCEPTUS ADHESION BY ENDOMETRIAL CXC CHEMOKINES DURING THE IMPLANTATION PERIOD IN SHEEP - (Peer Reviewed Journal)

Imakawa, K., Imai, M., Sakai, A., Suzuki, M., Nagaoka, K., Sakai, S., Lee, S.-R., Chang, K.-T., Echternkamp, S.E., Christenson, R.K. 2006. Regulation of conceptus adhesion by endometrial CXC chemokines during the implantation period in sheep. Molecular Reproduction and Development. 73(7):850-858.

EVALUATION OF OVULATION RATE AND OVARIAN PHENOTYPE IN PUBERAL HEIFERS FROM A CATTLE POPULATION SELECTED FOR INCREASED OVULATION RATE - (Peer Reviewed Journal)

Cushman, R.A., Allan, M.F., Snowder, G.D., Thallman, R.M., Echternkamp, S.E. 2005. Evaluation of ovulation rate and ovarian phenotype in puberal heifers from a cattle population selected for increased ovulation rate. Journal of Animal Science. 83(8):1839-1844.

REGULATION OF OVINE INTERFERON-TAU GENE BY A BLASTOCYST SPECIFIC TRANSCIPTION FACTOR, CDX-2 - (Abstract)

Ishida, S., Matsuda-Minehata, F., Qin, J., Iizuka, M., Manabe, N., Echternkamp, S.E., Christenson, R., Imakawa, K. 2005. Regulation of ovine interferon-tau gene by a blastocyst specific transciption factor, CDX-2 [abstract]. Biology of Reproduction. (Supplement):93. (Abstract #54)

INCREASED MRNA EXPRESSION FOR FSH RECEPTOR IN SMALL ANTRAL FOLLICLES IN THE OVARIAN CORTEX OF TWIN-PRODUCING CATTLE - (Abstract)

Echternkamp, S.E., Cushman, R.A., Christenson, R. 2005. Increased mRNA expression for FSH receptor in small antral follicles in the ovarian cortex of twin-producing cattle [abstract]. Biology of Reproduction. (Supplement):93. (Abstract #53)

DIFFERENTIAL GENE EXPRESSION IN THE OVARIAN CORTEX OF COWS SELECTED FOR MULTIPLE OVULATIONS - (Abstract)

Cushman, R.A., Allan, M.F., Christenson, R., Echternkamp, S.E. 2005. Differential gene expression in the ovarian cortex of cows selected for multiple ovulations [abstract]. Biology of Reproduction. (Supplement):188. (Abstract #W483)

FERTILIZATION - (Book/Chapter)

Echternkamp, S.E. 2005. Fertilization. In: Pond, W., Bell, A., editors. Encyclopedia of Animal Science. New York, NY:Marcel Dekker. p. 411-413.

COMPARISON OF CIRCULATING CONCENTRATIONS OF VASCULAR ENDOTHELIAL GROWTH FACTOR (VEGF) BETWEEN COWS GESTATING SINGLE AND TWIN OVULATIONS - (Abstract)

Echternkamp, S., Vonnahme, K., Ford, S. 2005. Comparison of circulating concentrations of vascular endothelial growth factor (VEGF) between cows gestating single and twin ovulations [abstract]. Journal of Animal Science. 83 (Supplement 2):86.

EVALUATION OF OVULATION RATE AND OVARIAN PHENOTYPE IN PUBERAL HEIFERS FROM A CATTLE POPULATION SELECTED FOR MULTIPLE BIRTHS - (Abstract)

Cushman, R.A., Allan, M.F., Snowder, G.D., Thallman, R.M., Echternkamp, S.E. 2005. Evaluation of ovulation rate and ovarian phenotype in puberal heifers from a cattle population selected for multiple births [abstract]. Journal of Animal Science. 83 (Supplement 2):86-87.

HERITABILITY ESTIMATE FOR BILATERAL OVULATION IN HEIFERS - (Abstract)

Snowder, G.D., Cushman, R.A., Allan, M.F., Thallman, R.M., Echternkamp, S.E. 2005. Heritability estimate for bilateral ovulation in heifers [abstract]. Midwestern Section of the American Society of Animal Science 83(2):39.

ASSOCIATIONS AMONG CHANGES IN ESTROGEN CONCENTRATIONS IN THE FIRST WAVE DOMINANT FOLLICLE AND STEROID CONCENTRATIONS IN OTHER ANTRAL OVARIAN FOLLICLES IN BEEF COWS - (Abstract)

Roberts, A.J., Echternkamp, S.E. 2004. Associations among changes in estrogen concentrations in the first wave dominant follicle and steroid concentrations in other antral ovarian follicles in beef cows [abstract]. Biology of Reproduction. 70 (Supplement):135. (Abstract #184)

EFFECT OF OVULATION RATE ON DEVELOPMENT OF THE OVINE CORPUS LUTEUM - (Abstract)

Echternkamp, S.E., Cushman, R.A., Christenson, R.K. 2004. Effect of ovulation rate on development of the ovine corpus luteum [abstract]. Journal of Animal Science. 82 (Supplement 1):67. (Abstract #M266)

FACTORS AFFECTING THE DEVELOPMENT OF PREANTRAL FOLLICLES IN CATTLE - (Abstract)

Cushman, R.A., Allan, M.F., Echternkamp, S.E. 2004. Factors affecting the development of preantral follicles in cattle [abstract]. Journal of Animal Science. 82 (Supplement 2):85. (Abstract #230)

OVARIAN FOLLICULAR DEVELOPMENT IN CATTLE SELECTED FOR TWIN OVULATIONS AND BIRTHS - (Peer Reviewed Journal)

ECHTERNKAMP, S.E., ROBERTS, A.J., LUNSTRA, D.D., WISE, T.H., SPICER, L.J. 2004. OVARIAN FOLLICULAR DEVELOPMENT IN CATTLE SELECTED FOR TWIN OVULATIONS AND BIRTHS. JOURNAL OF ANIMAL SCIENCE. v. 82(2). p. 459-471.

CHARACTERIZATION OF GENE EXPRESSION IN DOUBLE-MUSCLED AND NORMAL-MUSCLED BOVINE EMBRYOS - (Peer Reviewed Journal)

POTTS, J.K., ECHTERNKAMP, S.E., SMITH, T.P., REECY, J.M. 2003. CHARACTERIZATION OF GENE EXPRESSION IN DOUBLE-MUSCLED AND NORMAL-MUSCLED BOVINE EMBRYOS. ANIMAL GENETICS. v. 34(6). p. 438-444.

INSULIN-LIKE GROWTH FACTOR BINDING PROTEINS IN GRANULOSA AND THECAL CELLS FROM BOVINE OVARIAN FOLLICLES AT DIFFERENT STAGES OF DEVELOPMENT - (Peer Reviewed Journal)

Roberts, A.J., Echternkamp, S.E. 2003. Insulin-like growth factor binding proteins in granulosa and thecal cells from bovine ovarian follicles at different stages of development. Journal of Animal Science. 81(11):2826-2839.

REPRODUCTIVE EFFICIENCY IN CATTLE SELECTED FOR OVULATION AND TWINNING RATE - (Abstract)

ECHTERNKAMP, S.E., GREGORY, K.E. REPRODUCTIVE EFFICIENCY IN CATTLE SELECTED FOR OVULATION AND TWINNING RATE. JOURNAL OF ANIMAL SCIENCE 81 SUPPLEMENT 1:183. 2003.

INCREASED TWINNING AND COW PRODUCTIVITY IN BEEF CATTLE SELECTED FOR OVULATION AND TWINNING RATE - (Proceedings/Symposium)

ECHTERNKAMP, S.E., THALLMAN, R.M., KAPPES, S.M., GREGORY, K.E. INCREASED TWINNING AND COW PRODUCTIVITY IN BEEF CATTLE SELECTED FOR OVULATION AND TWINNING RATE. PROCEEDINGS OF 7TH WORLD CONGRESS OF GENETICS APPLIED IN LIVESTOCK PRODUCTION. 2002. SESSION 08, REPRODUCTION. CD-ROM COMMUNICATION NO. 08-12