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United States Department of Agriculture

Agricultural Research Service

Publications List - Sherrill E. Echternkamp
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Many of these are available as Adobe files; others can be requested from linda.parnell@ars.usda.gov

 

2009

 

223409

Confirmation of quantitative trait loci using a low-density single nucleotide polymorphism map for twinning and ovulation rate on bovine chromosome 5

237275

Size of ovulatory follicles in cattle expressing multiple ovulations naturally and its influence on corpus luteum development and fertility

2007

 

193666

Localization of Period 1 mRNA in the ruminant oocyte and investigations of its role in ovarian function

197930

Association of a single nucleotide polymorphism in SPP1 with growth traits and twinning in a cattle population selected for twinning rate

209468

Effects of ovulation rate and fetal number on fertility in twin-producing cattle

209469

Increased calf production in cattle selected for twin ovulations

2006

 

181456

Large variation in steroid concentrations and insulin-like growth factor binding proteins exists among individual small antral follicles collected from within cows at random stages of the estrous cycle

185463

Increased vascular endothelial growth factor and pregnancy-associated glycoproteins, but not insulin-like growth factor-I, in maternal blood of cows gestating twin fetuses

197094

Regulation of conceptus adhesion by endometrial CXC chemokines during the implantation period in sheep

197098

Regulation of the ovine interferon-tau gene by a blastocyst-specific transcription factor, Cdx2

2005

 

178393

Evaluation of ovulation rate and ovarian phenotype in puberal heifers from a cattle population selected for increased ovulation rate

2004

 

148208

Ovarian follicular development in cattle selected for twin ovulations and births

2003

 

149803

Insulin-like growth factor binding proteins in granulosa and thecal cells from bovine ovarian follicles at different stages of development

151918

Characterization of gene expression in double-muscled and normal-muscled bovine embryos

2000

 

103298

Initial results of genomic scans for ovulation rate in a cattle population selected for increased twinning rate

104753

Evaluation of numbers of microscopic and macroscopic follicles in cattle selected for twinning

1999

 

077728

Effects of twinning on gestation length, retained placenta, and dystocia

086570

Effects of twinning on postpartum reproductive performance in cattle selected for twin births

1998

 

084387

A model of litter size distribution in cattle

1997

 

073350

Genetic and environmental parameters for ovulation rate, twinning rate, and weight traits in a cattle population selected for twinning

1996

 

063455

Effects of twinning on dystocia, calf survival, calf growth, carcass traits, and cow productivity

071654

Levels of insulin-like growth factor (IGF) binding proteins, luteinizing hormone and IGF-I receptors, and steroids in dominant follicles during the first follicular wave in cattle exhibiting regular estrous cycles

1995

 

047310

Serum hormones, follicular fluid steroids, insulin-like growth factors and their binding proteins, and ovarian IGF mRNA in sheep with different ovulation rates

057415

The ovarian insulin and insulin-like growth factor system with an emphasis on domestic animals

1994

 

047316

In vitro production of estradiol by bovine granulosa cells: Evaluation of culture condition, stage of follicular development, and location of cells within follicles

047318

Administration of porcine somatotropin by a sustained-release implant: effect on follicular growth, concentrations of steroids and insulin-like growth factor I, and insulin-like growth factor binding protein activity in follicular fluid of control, lean, and obese gilts

047315

Relationships among concentrations of steroids, insulin-like growth factor-I, and insulin-like growth factor binding proteins in ovarian follicular fluid of beef cattle

047309

Follicular development and superovulation response in cows administered multiple FSH injections early in the estrous cycle

1993

 

047300

Effects of insulin, insulin-like growth factor I, and gonadotropins on bovine granulosa cell proliferation, progesterone production, estradiol production, and(or) insulin-like growth factor I production in vitro

ID2666

Relationship between placental development and calf birth weight in beef cattle

1992

 

ID0896

Fetal development in cattle with multiple ovulations

ID0895

Effect of porcine somatotropin on number of granulosa cell luteinizing hormone/human chorionic gonadotropin receptors, oocyte viability, and concentrations of steroids and insulin-like growth factors I and II in follicular fluid of lean and obese gilts

1991

 

ID0990

Superovulation and embryo quality in beef cows using PMSG and a monoclonal anti-PMSG

ID0898

Ovulation rate and twinning rate in cattle: heritabilities and genetic correlation

ID0897

Prediction of breeding values for twinning rate and ovulation rate with a multiple trait, repeated records animal model

047299

Failure of embryos from bluetongue infected cattle to transmit virus to susceptible recipients or their offspring

1990

 

ID0900

Twinning in cattle: II. Genetic and environmental effects on ovulation rate in puberal heifers and postpartum cows and the effects of ovulation rate on embryonic survival

ID1997

Concentrations of insulin-like growth factor-I in blood and ovarian follicular fluid of cattle selected for twins

ID0901

Twinning in cattle: I. Foundation animals and genetic and environmental effects on twinning rate

ID0899

Twinning in cattle: III. Effects of twinning on dystocia, reproductive traits, calf survival, calf growth and cow productivity

1989

 

ID0992

Exposure of bovine embryos to trypsin during washing does not decrease embryonic survival

ID0424

Ovarian responses to intramuscular or intravenous administration of prostaglandin F2α in control and FSH-treated beef heifers

 

The influence of the BoLA-A locus on reproductive traits in cattle

1988

 

ID0983

Repetitive testicular biopsy in the ram during pubertal development

ID2005

Relationship between concentrations of immunoreactive insulin-like growth factor-I in follicular fluid and various biochemical markers of differentiation in bovine antral follicles

1987

 

ID2639

Comparison of surface diameters and dissected diameters of bovine ovarian follicles

ID0995

Synchronization of parturition in beef cattle with prostaglandin and dexamethasone

 

Relationships between histological signs of atresia, steroids in follicular fluid, and gonadotropin binding in individual bovine antral follicles during postpartum anovulation

1986

 

ID2636

Ovarian follicular growth, function and turnover in cattle: A review

ID2638

Effects of intermittent injections of LHRH on secretory patterns of LH and FSH and ovarian follicular growth during postpartum anovulation in suckled beef cows

ID2637

Effects of intermittent injections of LHRH on specific binding of 125I-labeled gonadotropins to granulosa and theca, and concentrations of steroids in serum and ovarian follicles during postpartum anovulation in suckled beef cows

 

A note on the effect of nutrition on ovulation and ovarian follicular populations in the individually fed postpartum beef heifer

1985

 

ID2587

Repeat-breeder females in beef cattle: Influences and causes

 

Out-of-season breeding of sheep

1984

 

ID2635

Relationship between LH and testicular development in progesterone-implanted prepubertal ram lambs

ID0998

Relationship between LH and cortisol in acutely stressed beef cows

1983

 

ID1000

Conception, embryonic development and corpus luteum function in beef cattle open for two consecutive breeding seasons

1982

 

ID1004

Hormonal asynchrony and embryonic development

ID1003

Influence of breed and season on ovarian and pituitary response in progestogen-PMSG-treated ewes

ID1002

Influence of pre- and post-partum nutrition on LH secretion in suckled postpartum beef heifers

ID2634

Puberty in beef bulls: Acrosome morphology and semen quality in bulls of different breeds

1981

 

 

Early weaning and reproduction

1979

 

ID2672

Uterine blood flow of cows during the oestrous cycle and early pregnancy: effect of the conceptus on the uterine blood supply

1978

 

ID2633

Puberty in beef bulls: Hormone concentrations, growth, testicular development, sperm production and sexual aggressiveness in bulls of different breeds

ID0987

Causes for decreased fertility in out-of-season mated ewes

ID1863

Testicular steroid secretion in response to GnRH-mediated LH and FSH release in bulls

ID2640

Stimulation of estrogen and luteinizing hormone secretion in postpartum beef cows

1976

 

ID2631

Plasma LH concentrations for prepubertal, postpubertal, anestrous and cyclic ewes of varying fecundity

ID2632

Ovarian and pituitary hormones in blood of progestogen-treated ewes

1975

 

ID0073

Oestrus, LH, ovulation and fertility in beef heifers

 


Last Modified: 6/15/2010
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