Search Results - "Ambrose, D.J"

Effects of dietary butyrate supplementation and oral nonsteroidal anti-inflammatory drug administration on serum inflammatory markers and productivity of dairy cows during the calving transition by Engelking, L.E., Ambrose, D.J., Oba, M.

“…Dairy cattle experience inflammation during the calving transition period, and butyrate and nonsteroidal anti-inflammatory drugs (NSAID) are expected to reduce…”
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Repeatability of anogenital distance measurements from birth to maturity and at different physiological states in female Holstein cattle by Rajesh, I., Gobikrushanth, M., Carrelli, J.E., Oba, M., Ambrose, D.J.

“…The inverse association between anogenital distance (AGD; the distance from the center of the anus to the base of the clitoris) and fertility, its moderate…”
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Effects of supplementing a Saccharomyces cerevisiae fermentation product during the periparturient period on performance of dairy cows fed fresh diets differing in starch content by Shi, W, Knoblock, C E, Murphy, K V, Bruinjé, T C, Yoon, I, Ambrose, D J, Oba, M

“…The objective of this study was to evaluate the effects of supplementing a Saccharomyces cerevisiae fermentation product (SCFP; NutriTek, Diamond V, Cedar…”
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Associations between anogenital distance and measures of fertility in lactating North American Holstein cows: A validation study by Carrelli, J.E., Gobikrushanth, M., Corpron, M., Sandberg, W., Rajesh, I., Ahmadzadeh, A., Oba, M., Ambrose, D.J.

“…Anogenital distance (AGD) has been defined in dairy cows as the distance from the center of the anus to the base of the clitoris. Initial reports on…”
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The relationship between serum anti-Müllerian hormone concentrations and fertility, and genome-wide associations for anti-Müllerian hormone in Holstein cows by Gobikrushanth, M, Purfield, D C, Colazo, M G, Butler, S T, Wang, Z, Ambrose, D J

“…The objectives of this study were to (1) evaluate factors associated with variation in circulating anti-Müllerian hormone (AMH) concentrations, (2) establish…”
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Anogenital distance is associated with postpartum estrous activity, intensity of estrous expression, ovulation, and progesterone concentrations in lactating Holstein cows by Madureira, A.M.L., Burnett, T.A., Carrelli, J.E., Gobikrushanth, M., Cerri, R.L.A., Ambrose, D.J.

“…The objectives of this retrospective observational study were to determine the associations of anogenital distance (AGD) with (a) postpartum estrous activity,…”
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Corrigendum to “Effects of supplementing a Saccharomyces cerevisiae fermentation product during the periparturient period on performance of dairy cows fed fresh diets differing in starch content” (J. Dairy Sci. 102:3082–3096) by Shi, W., Knoblock, C.E., Murphy, K.V., Bruinjé, T.C., Yoon, I., Ambrose, D.J., Oba, M.

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Evaluation of infrared thermography combined with behavioral biometrics for estrus detection in naturally cycling dairy cows by Perez Marquez, H.J., Ambrose, D.J., Schaefer, A.L., Cook, N.J., Bench, C.J.

“…Low estrus detection rates (>50%) are associated to extended calving intervals, low economic profit and reduced longevity in Holstein dairy cows. The objective…”
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Diameter of the ovulatory follicle at timed artificial insemination as a predictor of pregnancy status in lactating dairy cows subjected to GnRH-based protocols by Colazo, M.G., Behrouzi, A., Ambrose, D.J., Mapletoft, R.J.

“…Ovulation of an early-stage dominant follicle induced by exogenous GnRH reportedly results in a reduced ovulatory follicle size and fertility in beef and dairy…”
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Evaluating automated infrared thermography and vulva exposure tracking as components of an estrus detection platform in a commercial dairy herd by Perez Marquez, H.J., Schaefer, A.L., von Gaza, H., Ambrose, D.J., Cook, N.J., Bench, C.J.

“…•Visual estrus detection is a tedious, time-consuming, and inaccurate task.•Estrus BenchMark monitored infrared thermography and tail movements without labour…”
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Neither duration of progesterone insert nor initial GnRH treatment affected pregnancy per timed-insemination in dairy heifers subjected to a Co-synch protocol by Colazo, M.G, Ambrose, D.J

“…Our objectives were to: 1) compare response to cloprostenol, synchrony of ovulation, and pregnancy per timed-AI (P/TAI) in a 5 d versus a 7 d Co-synch + PRID…”
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Pregnancy per artificial insemination in lactating dairy cows subjected to 2 different intervals from presynchronization to initiation of Ovsynch protocol by Colazo, M G, Ponce-Barajas, P, Ambrose, D J

“…A protocol for presynchronization of ovarian status with 2 injections of PGF2α given 14 d apart, with the last PGF2α injection given 12 or 14 d before Ovsynch…”
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Lower pregnancy losses in lactating dairy cows fed a diet enriched in alpha-linolenic acid by Ambrose, D J, Kastelic, J P, Corbett, R, Pitney, P A, Petit, H V, Small, J A, Zalkovic, P

“…The objectives were to determine if a diet enriched in alpha-linolenic acid (ALA) would influence ovarian function, early embryo survival, conception rates,…”
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Characterization of the variability and repeatability of gonadotropin-releasing hormone-induced luteinizing hormone responses in dairy cows within a synchronized ovulation protocol by Gobikrushanth, M, Dutra, P A, Bruinjé, T C, Colazo, M G, Butler, S T, Ambrose, D J

“…The primary objective was to determine the variability and repeatability of GnRH-induced LH responses. The secondary objective was to evaluate the associations…”
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Effects of dietary butyrate supplementation and oral nonsteroidal antiinflammatory drug administration on uterine inflammation and interval to first ovulation in postpartum dairy cows by Engelking, L.E., Gobikrushanth, M., Oba, M., Ambrose, D.J.

“…[Display omitted] •Dietary butyrate supplementation did not reduce endometritis or the mean interval to first ovulation.•Giving oral NSAID treatment 12 to 24…”
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Reproductive performance of dairy cows is influenced by prepartum feed restriction and dietary fatty acid source by Colazo, M G, Hayirli, A, Doepel, L, Ambrose, D J

“…The objective of this study was to determine the effects of feed restriction and source of dietary fatty acids during the close-up dry period on postcalving…”
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Morphology, membrane integrity, and mitochondrial function in sperm of crossbred beef bulls selected for residual feed intake by Bruinjé, T.C., Ponce-Barajas, P., Dourey, A., Colazo, M.G., Caldwell, T., Wang, Z., Miller, S.P., Ambrose, D.J.

“…The objectives of this study were to compare morphology, plasma and acrosome membrane integrities, and mitochondrial function in sperm of bulls selected for…”
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Starch source and content in postpartum dairy cow diets: effects on plasma metabolites and reproductive processes by Dyck, B L, Colazo, M G, Ambrose, D J, Dyck, M K, Doepel, L

“…The objective of this study was to examine the effects of dietary starch source and content in the immediate postpartum period on plasma metabolites and…”
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Pregnancy rates to timed artificial insemination in dairy cows treated with gonadotropin-releasing hormone or porcine luteinizing hormone by Colazo, M.G., Gordon, M.B., Rajamahendran, R., Mapletoft, R.J., Ambrose, D.J.

“…We compared the effects of porcine luteinizing hormone (pLH) versus gonadotropin-releasing hormone (GnRH) on ovulatory response and pregnancy rate after timed…”
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Short communication: effects of serum obtained from dairy cows with low or high body condition score on in vitro embryo development by Oba, M, Miyashita, S, Nishii, R, Koiwa, M, Koyama, H, Ambrose, D J, Dochi, O

“…The objective of the study was to determine whether the serum obtained from animals differing in body condition score (BCS) affects in vitro embryo…”
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