Search Results - "Giordano, J. O."

Physiological and practical effects of progesterone on reproduction in dairy cattle by Wiltbank, M. C., Souza, A. H., Carvalho, P. D., Cunha, A. P., Giordano, J. O., Fricke, P. M., Baez, G. M., Diskin, M. G.

“…The discovery of progesterone (P4) and elucidation of the mechanisms of P4 action have an important place in the history of endocrinology and reproduction…”
Get full text

Assessment of an accelerometer system for detection of estrus and treatment with gonadotropin-releasing hormone at the time of insemination in lactating dairy cows by Valenza, A, Giordano, J O, Lopes, Jr, G, Vincenti, L, Amundson, M C, Fricke, P M

“…Two experiments were conducted to evaluate an accelerometer system (Heatime; SCR Engineers Ltd., Netanya, Israel) to manage reproduction in lactating dairy…”
Get more information

Increased fertility in lactating dairy cows resynchronized with Double-Ovsynch compared with Ovsynch initiated 32 d after timed artificial insemination by Giordano, J O, Wiltbank, M C, Guenther, J N, Pawlisch, R, Bas, S, Cunha, A P, Fricke, P M

“…The objective was to determine if using a Double-Ovsynch protocol [DO; Pre-Resynch: GnRH-7 d-PGF(2α)-3 d-GnRH, 7 d later Breeding-Resynch: GnRH-7 d-PGF(2α)-56…”
Get more information

Effect of progesterone on magnitude of the luteinizing hormone surge induced by two different doses of gonadotropin-releasing hormone in lactating dairy cows by Giordano, J O, Fricke, P M, Guenther, J N, Lopes, Jr, G, Herlihy, M M, Nascimento, A B, Wiltbank, M C

“…Ovulation to the first GnRH injection of Ovsynch-type protocols is lower in cows with high progesterone (P4) concentrations compared with cows with low P4…”
Get more information

An economic decision-making support system for selection of reproductive management programs on dairy farms by Giordano, J O, Fricke, P M, Wiltbank, M C, Cabrera, V E

“…Because the reproductive performance of lactating dairy cows influences the profitability of dairy operations, predicting the future reproductive and economic…”
Get more information

A daily herd Markov-chain model to study the reproductive and economic impact of reproductive programs combining timed artificial insemination and estrus detection by Giordano, J O, Kalantari, A S, Fricke, P M, Wiltbank, M C, Cabrera, V E

“…Our objective was to compare the economic and reproductive performance of programs combining timed artificial insemination (TAI) and different levels of AI…”
Get more information

Presynchronization with Double-Ovsynch improves fertility at first postpartum artificial insemination in lactating dairy cows by Herlihy, M M, Giordano, J O, Souza, A H, Ayres, H, Ferreira, R M, Keskin, A, Nascimento, A B, Guenther, J N, Gaska, J M, Kacuba, S J, Crowe, M A, Butler, S T, Wiltbank, M C

“…The objective of this study was to compare circulating progesterone (P4) profiles and pregnancies per AI (P/AI) in lactating dairy cows bred by timed…”
Get more information

Expression and detection of estrus in dairy cows: the role of new technologies by Fricke, P. M., Carvalho, P. D., Giordano, J. O., Valenza, A., Lopes, G., Amundson, M. C.

“…Despite the widespread adoption of hormonal synchronization protocols that allow for timed artificial insemination (AI), detection of estrus plays an important…”
Get full text

Changes in serum pregnancy-associated glycoprotein, pregnancy-specific protein B, and progesterone concentrations before and after induction of pregnancy loss in lactating dairy cows by Giordano, J O, Guenther, J N, Lopes, Jr, G, Fricke, P M

“…Lactating crossbred dairy cows were synchronized to receive a timed artificial insemination (TAI), and blood samples were collected from all cows from TAI…”
Get more information

Effect of presynchronization with human chorionic gonadotropin or gonadotropin-releasing hormone 7 days before resynchronization of ovulation on fertility in lactating dairy cows by Giordano, J O, Wiltbank, M C, Guenther, J N, Ares, M S, Lopes, Jr, G, Herlihy, M M, Fricke, P M

“…Our objectives were to (1) compare the effect on pregnancies per artificial insemination (P/AI) of presynchronization of the estrous cycle with human chorionic…”
Get more information

Combining reproductive outcomes predictors and automated estrus alerts recorded during the voluntary waiting period identified subgroups of cows with different reproductive performance potential by Rial, C., Giordano, J.O.

“…The list of standard abbreviations for JDS is available at adsa.org/jds-abbreviations-24. Nonstandard abbreviations are available in the Notes. The objective…”
Get full text

Use of rumination and activity monitoring for the identification of dairy cows with health disorders: Part I. Metabolic and digestive disorders by Stangaferro, M L, Wijma, R, Caixeta, L S, Al-Abri, M A, Giordano, J O

“…The objectives of this study were to evaluate (1) the performance of an automated health-monitoring system (AHMS) to identify cows with metabolic and digestive…”
Get more information

Use of rumination and activity monitoring for the identification of dairy cows with health disorders: Part III. Metritis by Stangaferro, M L, Wijma, R, Caixeta, L S, Al-Abri, M A, Giordano, J O

“…The objectives of this study were to evaluate (1) the performance of an automated health-monitoring system (AHMS) to identify cows with metritis based on an…”
Get more information

Effect of a targeted reproductive management program designed to prioritize insemination at detected estrus and optimize time to insemination on the reproductive performance of lactating dairy cows by Rial, C., Laplacette, A., Giordano, J.O.

“…The primary objective of this randomized controlled experiment was to evaluate the insemination dynamic and reproductive performance of cows managed with a…”
Get full text

Use of rumination and activity monitoring for the identification of dairy cows with health disorders: Part II. Mastitis by Stangaferro, M L, Wijma, R, Caixeta, L S, Al-Abri, M A, Giordano, J O

“…The objectives of this study were to evaluate (1) the performance of an automated health-monitoring system (AHMS) to identify cows with mastitis based on an…”
Get more information

Effects of targeted clinical examination based on alerts from automated health monitoring systems on herd health and performance of lactating dairy cows by Perez, M M, Cabrera, E M, Giordano, J O

“…Our objectives were to compare the proportion of lactating dairy cows diagnosed with health disorders (HD) and herd performance when using a health monitoring…”
Get full text

Symposium review: Use of multiple biological, management, and performance data for the design of targeted reproductive management strategies for dairy cows by Giordano, J.O., Sitko, E.M., Rial, C., Pérez, M.M., Granados, G.E.

“…As the reproductive efficiency of dairy cattle continues to improve in response to better management and use of technology, novel reproductive management…”
Get full text

Reproductive physiological outcomes of dairy cows with different genomic merit for fertility: Biomarkers, uterine health, endocrine status, estrus features, and response to ovarian synchronization by Sitko, E.M., Laplacette, A., Duhatschek, D., Rial, C., Perez, M.M., Tompkins, S., Kerwin, A.L., Giordano, J.O.

“…The list of standard abbreviations for JDS is available at adsa.org/jds-abbreviations-24. Nonstandard abbreviations are available in the Notes. Our overarching…”
Get full text

Metritis and clinical mastitis events in lactating dairy cows were associated with altered patterns of rumination, physical activity, and lying behavior monitored by an ear-attached sensor by Rial, C, Laplacette, A, Caixeta, L, Florentino, C, Peña-Mosca, F, Giordano, J O

“…Understanding changes in parameters recorded by automated health monitoring systems based on ear-attached sensors on the days immediately before and after…”
Get full text

Development and evaluation of a lateral flow-based portable optical system for determination of the pregnancy status of dairy cows by Rial, C., Hussain, I., Hoff, R., Tompkins, S., Erickson, D., Branen, J., Giordano, J.O.

“…The list of standard abbreviations for JDS is available at adsa.org/jds-abbreviations-24. Nonstandard abbreviations are available in the Notes. Our objectives…”
Get full text