Výsledky vyhledávání - "M.C. Amundson"

Akademický článek

Expression and detection of estrus in dairy cows: the role of new technologies

Autor: P.M. Fricke, P.D. Carvalho, J.O. Giordano, A. Valenza, G. Lopes, Jr, M.C. Amundson

Publikováno v: Animal, Vol 8, Iss , Pp 134-143 (2014)

Despite the widespread adoption of hormonal synchronization protocols that allow for timed artificial insemination (AI), detection of estrus plays an important role in the reproductive management program on most dairies in the United States. Increase

Externí odkaz: https://doaj.org/article/f400824f176a44ac923c80bb73e810d8

Zobrazit plný text záznamu

Factors associated with pregnancy-associated glycoprotein (PAG) levels in plasma and milk of Holstein cows during early pregnancy and their effect on the accuracy of pregnancy diagnosis

Autor: Paul M. Fricke, Alessandro Ricci, P.D. Carvalho, M.C. Amundson, Leila Vincenti, R.H. Fourdraine

Publikováno v: Journal of Dairy Science. 98:2502-2514

Lactating Holstein cows (n = 141) were synchronized to receive their first timed artificial insemination (TAI). Blood and milk samples were collected 25 and 32 d after TAI, and pregnancy status was determined 32 d after TAI using transrectal ultrason

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27fc154b6a74d446b8b813323e62d978
https://doi.org/10.3168/jds.2014-8974

Zobrazit plný text záznamu

Characterization of luteal dynamics in lactating Holstein cows for 32 days after synchronization of ovulation and timed artificial insemination

Autor: Paul M. Fricke, P.D. Carvalho, M.C. Amundson, Alessandro Ricci

Publikováno v: Journal of dairy science. 100(12)

Approximately 20 to 30% of cows diagnosed not pregnant 32 d after timed artificial insemination (TAI) lack a corpus luteum (CL), and cows submitted to a resynchronization protocol in the absence of a CL have about 10% fewer pregnancies per AI (P/AI)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbb20598d095b1666cf77a930ede6209
https://pubmed.ncbi.nlm.nih.gov/28987588

Zobrazit plný text záznamu

Presynchronization using a modified Ovsynch protocol or a single gonadotropin-releasing hormone injection 7 d before an Ovsynch-56 protocol for submission of lactating dairy cows to first timed artificial insemination

Autor: M.J. Fuenzalida, Milo C. Wiltbank, J.N. Guenther, Paul M. Fricke, M.C. Amundson, P.D. Carvalho

Publikováno v: Journal of Dairy Science. 97:6305-6315

Presynchronization strategies, such as Presynch-Ovsynch and Double-Ovsynch, increase fertility to timed artificial insemination (TAI) compared with Ovsynch alone; however, simpler presynchronization strategies could reduce costs and simplify reproduc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52c775cee8a03ead602f70a76ffab9ca
https://doi.org/10.3168/jds.2014-8222

Zobrazit plný text záznamu

Relationships between fertility and postpartum changes in body condition and body weight in lactating dairy cows

Autor: A.H. Souza, Paul M. Fricke, M.C. Amundson, P.D. Carvalho, L.M. Vieira, M.J. Fuenzalida, H. Ayres, Milo C. Wiltbank, Ric R. Grummer, M.M. Herlihy, Randy D. Shaver, A.R. Dresch, Katherine S. Hackbart, J.N. Guenther

Publikováno v: Journal of Dairy Science. 97:3666-3683

The relationship between energy status and fertility in dairy cattle was retrospectively analyzed by comparing fertility with body condition score (BCS) near artificial insemination (AI; experiment 1), early postpartum changes in BCS (experiment 2),

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5078b933682bde4b70642025bab20c3c
https://doi.org/10.3168/jds.2013-7809

Zobrazit plný text záznamu

Reproductive performance of lactating dairy cows managed for first service using timed artificial insemination with or without detection of estrus using an activity-monitoring system

Autor: P.D. Carvalho, A. Valenza, Paul M. Fricke, G. Lopes, Julio O. Giordano, M.C. Amundson

Publikováno v: Journal of Dairy Science. 97:2771-2781

Lactating dairy cows (n=1,025) on a commercial dairy farm were randomly assigned at 10 ± 3 d in milk (DIM) to 1 of 3 treatments for submitting cows to first artificial insemination (AI) and were fitted with activity-monitoring tags (Heatime; SCR Eng

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e025da0c9f8ad18dbef33a117e84c8c
https://doi.org/10.3168/jds.2013-7366

Zobrazit plný text záznamu

Assessment of an accelerometer system for detection of estrus and treatment with gonadotropin-releasing hormone at the time of insemination in lactating dairy cows

Autor: Paul M. Fricke, A. Valenza, M.C. Amundson, G. Lopes, Julio O. Giordano, Leila Vincenti

Two experiments were conducted to evaluate an accelerometer system (Heatime; SCR Engineers Ltd., Netanya, Israel) to manage reproduction in lactating dairy cows. In experiment 1, lactating Holstein cows (n = 112) were fitted with an accelerometer sys

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0491af2d488f64405c1deb7b61b3d0d1
http://hdl.handle.net/2318/127109

Zobrazit plný text záznamu

Effect of Progesterone Concentration During Follicle Development on Subsequent Ovulation, Fertilization, and Early Embryo Development in Lactating Dairy Cows

Autor: M.C. Amundson, Katherine S. Hackbart, J.N. Guenther, Murillo A. Meschiatti, A. B. Nascimento, Milo C. Wiltbank, Alexandre H. Souza, M.M. Herlihy, P.D. Carvalho, Michele R. Bastos, Abdulkadir Kaskin

Publikováno v: Biology of Reproduction. 85:685-685

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a50741e25e6a39d47efd1e200f361b99
https://doi.org/10.1093/biolreprod/85.s1.685

Zobrazit plný text záznamu

Akademický článek

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Akademický článek

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Vyhledávací nástroje:

Upřesnit hledání