Search Results - "Ireland, J.J."
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A single ultrasound determination of ≥25 follicles ≥3 mm in diameter in dairy heifers is predictive of a reduced productive herd life
Published in Journal of dairy science (01-06-2017)“…Fertility and productive herd life (time in herd after birth of first calf) are inferior in dairy cows with relatively low compared with intermediate but not…”
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Genomic heritability and genome-wide association analysis of anti-Müllerian hormone in Holstein dairy heifers
Published in Journal of dairy science (01-09-2018)“…Anti-Müllerian hormone (AMH) is an ovarian growth factor that plays an important role in regulation of ovarian follicle growth. The objectives of this study…”
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Antral Follicle Count Reliably Predicts Number of Morphologically Healthy Oocytes and Follicles in Ovaries of Young Adult Cattle
Published in Biology of reproduction (01-12-2008)“…Methods to predict numbers of healthy oocytes in the ovaries of young adults could have important diagnostic relevance in family planning and animal…”
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4
Heritability and impact of environmental effects during pregnancy on antral follicle count in cattle
Published in Journal of dairy science (01-07-2014)“…Previous studies have documented that ovarian antral follicle count (AFC) is positively correlated with number of healthy follicles and oocytes in ovaries…”
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5
Evidence That High Variation in Ovarian Reserves of Healthy Young Adults Has a Negative Impact on the Corpus Luteum and Endometrium During Estrous Cycles in Cattle
Published in Biology of reproduction (01-06-2009)“…Low progesterone concentrations and diminished ovarian reserves (total number of healthy oocytes) during reproductive cycles are linked to infertility in…”
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Variation in the Ovarian Reserve Is Linked to Alterations in Intrafollicular Estradiol Production and Ovarian Biomarkers of Follicular Differentiation and Oocyte Quality in Cattle
Published in Biology of reproduction (01-05-2009)“…The mechanisms whereby the high variation in numbers of morphologically healthy oocytes and follicles in ovaries (ovarian reserve) may have an impact onovarian…”
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7
Gonadotropin dose is inversely correlated wth live birth rate: an analysis of 541,967 ART cycles
Published in Fertility and sterility (01-09-2014)Get full text
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Stage-specific expression and effect of bone morphogenetic protein 2 on bovine granulosa cell estradiol production: regulation by cocaine and amphetamine regulated transcript
Published in Domestic animal endocrinology (01-04-2013)“…Members of the bone morphogenetic protein (BMP) family regulate follicular development and granulosa cell function. However, changes in expression of BMP2 and…”
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Historical perspective of turnover of dominant follicles during the bovine estrous cycle: key concepts, studies, advancements, and terms
Published in Journal of dairy science (01-07-2000)“…This review chronicles the key concepts, studies, advancements and terms that have led to our current understanding of turnover of dominant follicles (growth…”
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10
Differential expression of genes for transcription factors in theca and granulosa cells following selection of a dominant follicle in cattle
Published in Molecular reproduction and development (01-05-2008)“…Transcription factors inhibit or assist RNA polymerases in the initiation and maintenance of transcription; however, the cell specific expression and roles of…”
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Antral Follicle Count Reliably Predicts Number of Morphologically Healthy Oocytes and Follicles in Ovaries of Young Adult Cattle1
Published in Biology of reproduction (01-12-2008)“…Methods to predict numbers of healthy oocytes in the ovaries of young adults could have important diagnostic relevance in family planning and animal…”
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Journal Article -
12
Variation in the Ovarian Reserve Is Linked to Alterations in Intrafollicular Estradiol Production and Ovarian Biomarkers of Follicular Differentiation and Oocyte Quality in Cattle1
Published in Biology of reproduction (01-05-2009)“…The mechanisms whereby the high variation in numbers of morphologically healthy oocytes and follicles in ovaries (ovarian reserve) may have an impact onovarian…”
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13
Effect of long-term infusion with recombinant growth hormone-releasing factor and recombinant bovine somatotropin on development and function of dominant follicles and corpora lutea in Holstein cows
Published in Journal of dairy science (01-09-1999)“…The objective of this study was to evaluate the effects of recombinant bovine growth hormone-releasing factor (rGRF) or recombinant bovine somatotropin (rbST)…”
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Exposure of dairy cows to high environmental temperatures and their lactation status impairs establishment of the ovarian reserve in their offspring
Published in Journal of dairy science (01-12-2020)“…The objectives of this study were to establish if exposure of pregnant dairy cows to high environmental temperatures and humidity during the first trimester of…”
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Identification of Genes Involved in Apoptosis and Dominant Follicle Development During Follicular Waves in Cattle1
Published in Biology of reproduction (01-05-2004)“…We hypothesize that granulosa and theca cells from growing dominant follicles, with relatively high intrafollicular concentrations of estradiol, have a greater…”
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Low numbers of ovarian follicles ≥3 mm in diameter are associated with low fertility in dairy cows
Published in Journal of dairy science (01-05-2012)“…The total number of ovarian follicles ≥ 3mm in diameter (antral follicle count, AFC) during follicular waves varies among cattle of similar age, but AFC is…”
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Effect of long-term immunization against inhibin on sperm output in bulls
Published in Biology of reproduction (01-06-1999)“…To determine the effect of neutralization of inhibin on sperm output, 12 Holstein bulls were paired by birth date and weight on Day 1 of age. Each bull was…”
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Concentration of anti-Müllerian hormone in dairy heifers is positively associated with productive herd life
Published in Journal of dairy science (01-05-2015)“…Reliable biomarkers predictive of productive herd life (time in herd after birth of first calf) have heretofore not been discovered in dairy cattle. However,…”
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Does size matter in females? An overview of the impact of the high variation in the ovarian reserve on ovarian function and fertility, utility of anti-Müllerian hormone as a diagnostic marker for fertility and causes of variation in the ovarian reserve in cattle
Published in Reproduction fertility and development (2011)“…The mechanism whereby the inherently high variation in ovary size and the total number of high-quality oocytes in ovaries (ovarian reserve) impact on ovarian…”
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Development of the “waveless” bovine model
Published in Animal reproduction science (01-08-2018)“…Development of a bovine model without ovarian follicular waves (waveless) and transient increases in gonadotropin secretion during estrous cycles may lead to…”
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