Search Results - "Tracy A Burnett"

Short communication: Factors affecting hair cortisol concentrations in lactating dairy cows by Burnett, Tracy A, Madureira, Augusto M L, Silper, Bruna F, Nadalin, Audrey, Tahmasbi, Abdolmansour, Veira, Douglas M, Cerri, Ronaldo L A

“…Cortisol has long been used as a marker of the stress response in animals. Cortisol can be analyzed from different media, most notably from the blood, saliva,…”
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Impact of gonadotropin-releasing hormone administration at the time of artificial insemination on conception risk and its association with estrous expression by Burnett, Tracy A., Madureira, Augusto M.L., Bauer, Janet W., Cerri, Ronaldo L.A.

“…Cows with reduced estrous expression have compromised fertility. The aim of this study was to determine whether the administration of GnRH at the time of…”
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Access to an outdoor open pack promotes estrus activity in dairy cows by Smid, Anne-Marieke C, Burnett, Tracy A, Madureira, Augusto M L, McLellan, Kathryn J, Wegner, Claire S, von Keyserlingk, Marina A G, Weary, Daniel M

“…Dairy cows have a partial preference to access an outdoor deep-bedded pack, but the effects of continuous access to an outdoor area on estrous behaviors has…”
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Plasma concentrations of progesterone in the preceding estrous cycle are associated with the intensity of estrus and fertility of Holstein cows by Madureira, Augusto M. L, Burnett, Tracy A, Borchardt, Stefan, Heuwieser, Wolfgang, Baes, Christine F, Vasconcelos, Jose L. M, Cerri, Ronaldo L. A

“…The aim of this study was to determine the association between concentrations of progesterone (P4) during previous the estrous cycle with the intensity of…”
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Rumen-Reticular Temperature During Estrus and Ovulation Using Automated Activity Monitors in Dairy Cows by Burnett, Tracy A, Kaur, Manveen, Polsky, Liam, Cerri, Ronaldo L A

“…This study aimed to determine changes in rumen-reticular temperature (RRT) at estrus or ovulation and determine if these changes are associated with the…”
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Effect of estrous expression on timing and failure of ovulation of Holstein dairy cows using automated activity monitors by Burnett, Tracy A, Polsky, Liam, Kaur, Manveen, Cerri, Ronaldo L A

“…The aim of this study was to determine if estrous expression, as measured by an automated activity monitor (AAM), affects timing and failure of ovulation of…”
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Relationship of concentrations of cortisol in hair with health, biomarkers in blood, and reproductive status in dairy cows by Burnett, Tracy A, Madureira, Augusto M L, Silper, Bruna F, Tahmasbi, Abdolmansour, Nadalin, Audrey, Veira, Douglas M, Cerri, Ronaldo L A

“…Hair cortisol has been used to measure chronic stress in dairy cows as it offers the advantage of being noninvasive, fast, and able to indicate levels of…”
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Integrating an automated activity monitor into an artificial insemination program and the associated risk factors affecting reproductive performance of dairy cows by Burnett, Tracy A, Madureira, Augusto M L, Silper, Bruna F, Fernandes, A C C, Cerri, Ronaldo L A

“…The aim of this study was to compare 2 reproductive programs for the management of first postpartum artificial insemination (AI) based on activity monitors and…”
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Automated and visual measurements of estrous behavior and their sources of variation in Holstein heifers. II: Standing and lying patterns by Silper, Bruna F., Polsky, Liam, Luu, John, Burnett, Tracy A., Rushen, Jeffrey, de Passillé, Anne Marie, Cerri, Ronaldo L.A.

“…Lying (LY) and standing (ST) behavior of Holstein heifers (n = 57) was studied from Day −7 to Day +2 relative to estrus (Day 0) using leg-mounted…”
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Plasma concentrations of progesterone in the preceding estrous cycle are associated with the intensity of estrus and fertility of Holstein cows by Augusto M L Madureira, Tracy A Burnett, Stefan Borchardt, Wolfgang Heuwieser, Christine F Baes, Jose L M Vasconcelos, Ronaldo L A Cerri

“…The aim of this study was to determine the association between concentrations of progesterone (P4) during previous the estrous cycle with the intensity of…”
Get full text