Search Results - "Mussard, M.L."

Decreasing the interval between GnRH and PGF₂α from 7 to 5 days and lengthening proestrus increases timed-AI pregnancy rates in beef cows by Bridges, G.A, Helser, L.A, Grum, D.E, Mussard, M.L, Gasser, C.L, Day, M.L

“…Four experiments were conducted in postpartum beef cows to evaluate the influence of reducing the interval from GnRH to PGF₂α from 7 to 5d in a…”
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Influence of the length of proestrus on fertility and endocrine function in female cattle by Bridges, G.A., Mussard, M.L., Burke, C.R., Day, M.L.

“…Previous research from our laboratory in beef cattle suggests that ovarian follicle maturity and subsequent fertility is influenced by length of proestrus…”
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Impact of preovulatory estradiol concentrations on conceptus development and uterine gene expression by Bridges, G.A, Mussard, M.L, Pate, J.L, Ott, T.L, Hansen, T.R, Day, M.L

“…This experiment was conducted to determine the effect of altering preovulatory estradiol concentrations, through manipulation of length of proestrus, on…”
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Estradiol benzoate delays new follicular wave emergence in a dose-dependent manner after ablation of the dominant ovarian follicle in cattle by Burke, C.R, Mussard, M.L, Gasser, C.L, Grum, D.E, Day, M.L

“…Administration of estradiol benzoate (EB) induces atresia of the dominant follicle (DF) in the ovaries of cattle within 36 h but emergence of a new wave of…”
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Steroidogenic changes and steady state amount of messenger RNA encoding steroidogenic enzymes, gonadotropin receptors and cell-death signalling in the dominant ovarian follicle during estradiol-induced atresia in cattle by Burke, C.R., Cárdenas, H., Mussard, M.L., Gasser, C.L., Day, M.L.

“…Changes in steroidogenic function and associated gene expression were characterized in dominant ovarian follicles (DF) of cattle where follicles were induced…”
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GnRH dose at initiation of a 5-day CO-Synch + P4 for fixed time artificial insemination in suckled beef cows by Rojas Canadas, E., Battista, S.E., Kieffer, J.D., Wellert, S.R., Mussard, M.L., Garcia-Guerra, A.

“…The objective of the present study was to evaluate the effect of GnRH dose administered at initiation (GnRH-1) of a 5-day CO-Synch + P4 protocol on ovulatory…”
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Role of progesterone concentrations during early follicular development in beef cattle: I. Characteristics of LH secretion and oocyte quality by Abreu, F.M., Coutinho da Silva, M.A., Cruppe, L.H., Mussard, M.L., Bridges, G.A., Harstine, B.R., Smith, G.W., Geary, T.W., Day, M.L.

“…Objective was to investigate the effect of different progesterone (P4) concentrations during early follicular development on luteinizing hormone (LH) secretion…”
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Role of progesterone concentrations during early follicular development in beef cattle: II. Ovulatory follicle growth and pregnancy rates by Abreu, F.M., Geary, T.W., Coutinho da Silva, M.A., Cruppe, L.H., Mussard, M.L., Madsen, C.A., Martins, T., Bridges, G.A., Harstine, B.R., Day, M.L.

“…Two experiments were conducted to investigate the role of relatively lesser and greater progesterone (P4) concentrations during early follicular development on…”
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Comparison of follicular dynamics and hormone concentrations between the 7-day and 5-day CO-Synch + CIDR program in primiparous beef cows by Bridges, G.A., Mussard, M.L., Helser, L.A., Day, M.L.

“…The objectives were to compare follicular dynamics, preovulatory estradiol concentrations, and progesterone concentrations between the 7-day (7CO, n = 15) and…”
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Influence of premature induction of a luteinizing hormone surge with gonadotropin-releasing hormone on ovulation, luteal function, and fertility in cattle by Mussard, M.L, Burke, C.R, Behlke, E.J, Gasser, C.L, Day, M.L

“…We tested the hypothesis that luteal function and fertility would be reduced in cattle induced to ovulate prematurely compared with those ovulating…”
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Induction of precocious puberty in heifers I: Enhanced secretion of luteinizing hormone by Gasser, C.L, Grum, D.E, Mussard, M.L, Fluharty, F.L, Kinder, J.E, Day, M.L

“…In beef heifers weaned between 3 and 4 mo of age and fed a high-concentrate diet, approximately 50% reach puberty before 300 d of age (precocious puberty). The…”
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Induction of precocious puberty in heifers II: Advanced ovarian follicular development by Gasser, C.L, Burke, C.R, Mussard, M.L, Behlke, E.J, Grum, D.E, Kinder, J.E, Day, M.L

“…Precocious puberty can be induced in a majority of heifers weaned early and fed a high-concentrate diet. The objective of this experiment was to determine…”
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Induction of precocious puberty in heifers III: Hastened reduction of estradiol negative feedback on secretion of luteinizing hormone by Gasser, C.L, Bridges, G.A, Mussard, M.L, Grum, D.E, Kinder, J.E, Day, M.L

“…Precocious puberty (<300 d of age) can be induced in beef heifers by early weaning and feeding a high-concentrate diet. The objective of this experiment was to…”
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Decreasing the interval between GnRH and PGF 2α from 7 to 5 days and lengthening proestrus increases timed-AI pregnancy rates in beef cows by Bridges, G.A., Helser, L.A., Grum, D.E., Mussard, M.L., Gasser, C.L., Day, M.L.

“…Four experiments were conducted in postpartum beef cows to evaluate the influence of reducing the interval from GnRH to PGF 2α from 7 to 5 d in a Select-Synch…”
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Effects of maturity of the potential ovulatory follicle on induction of oestrus and ovulation in cattle with oestradiol benzoate by Burke, C.R, Mussard, M.L, Grum, D.E, Day, M.L

“…The effect of maturity of the dominant follicle (DF) on the capacity of oestradiol benzoate (ODB) to induce oestrus and ovulation was examined in cattle. In…”
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Comparative response of rams and bulls to long-term treatment with gonadotropin-releasing hormone analogs by Jiménez-Severiano, H., D’Occhio, M.J., Lunstra, D.D., Mussard, M.L., Davis, T.L., Enright, W.J., Kinder, J.E.

“…The objective was to compare the relative response between rams and bulls in characteristics of LH, FSH and testosterone (T) secretion, during and after…”
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Chronic Treatment with an Agonist of Gonadotropin-Releasing Hormone Enhances Luteal Function in Cattle1,2 by Davis, T.L., Mussard, M.L., Jimenez-Severiano, H., Enright, W.J., Kinder, J.E.

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Chronic Treatment with an Agonist of Gonadotropin-Releasing Hormone Enhances Luteal Function in Cattle by T.L. Davis, M.L. Mussard, H. Jimenez-Severiano, W.J. Enright, J.E. Kinder

“…Our hypothesis was that luteal function, as determined by plasma progesterone concentrations, and corpus luteum (CL) size is enhanced in cattle administered an…”
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Effect of chronic treatment with the gonadotrophin-releasing hormone agonist azagly-nafarelin on basal concentrations of LH in prepubertal bulls by Jimenez-Severiano, H, D'Occhio, MJ, Lunstra, DD, Mussard, ML, Koch, JW, Ehnis, LR, Enright, WJ, Kinder, JE

“…Administration of GnRH agonist for an extended period inhibits pulsatile LH release but enhances testicular function of bulls. The mechanism whereby long-term…”
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