Zobrazeno 1 - 10
of 130
pro vyhledávání: '"P.M. Fricke"'
Autor:
M.R. Lauber, P.M. Fricke
Publikováno v:
Journal of Dairy Science, Vol 107, Iss 4, Pp 2524-2542 (2024)
ABSTRACT: Our objective was to compare insemination rate and pregnancies per artificial insemination (P/AI) of lactating Jersey cows inseminated at first service with sexed Jersey or conventional beef semen after submission to a Double-Ovsynch protoc
Externí odkaz:
https://doaj.org/article/fab4ac7b5f3b4e42b00c0246de24b275
Publikováno v:
JDS Communications, Vol 5, Iss 1, Pp 47-51 (2024)
This observational study was conducted to evaluate the effect of transition cow health on pregnancy per artificial insemination (P/AI) and pregnancy loss (PL) in cows submitted to a Double-Ovsynch protocol (DO) for first service. Lactating Holstein c
Externí odkaz:
https://doaj.org/article/f827271a350a4f9e9d981c8958bdb878
Autor:
M.R. Lauber, P.M. Fricke
Publikováno v:
JDS Communications, Vol 4, Iss 5, Pp 428-432 (2023)
The objective of this retrospective cohort study was to determine the association between insemination eligibility and reproductive performance of nulliparous heifers with subsequent body weight (BW) at 30 d in milk (DIM) and milk production at wk 4,
Externí odkaz:
https://doaj.org/article/f02e379ea77a4acf923b25e234f52225
Publikováno v:
JDS Communications, Vol 4, Iss 2, Pp 127-131 (2023)
The development of fertility programs and their adoption by the dairy industry over the past decade is a major driving factor underlying the dramatic increase in reproductive performance in lactating dairy cows during the past 20 years. Another major
Externí odkaz:
https://doaj.org/article/9bc9ce4e715649b8bdf8f9cef9426101
Autor:
P.M. Fricke, M.C. Wiltbank
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 5, Pp 4679-4689 (2022)
ABSTRACT: Lactating dairy cows are classified as spontaneous ovulators, in which establishment of pregnancy depends on the accuracy of detection of behavioral estrus for correct timing of artificial insemination (AI). Development of the Ovsynch proto
Externí odkaz:
https://doaj.org/article/e7d5f9f2d6ea4afb843ce99282d83372
Publikováno v:
JDS Communications, Vol 2, Iss 6, Pp 421-425 (2021)
Lutalyse HighCon (dinoprost tromethamine; Zoetis) has been approved for use both intramuscularly and subcutaneously in lactating dairy cows, although the effect of route of administration on circulating 13,14-dihydro-15-keto-prostaglandin F2α (PGFM)
Externí odkaz:
https://doaj.org/article/9d01fc1e8bf6461d82a9c31b23438835
Publikováno v:
JDS Communications, Vol 2, Iss 1, Pp 35-40 (2021)
Our objective was to assess the effect of treatment with GnRH or 4 increasing doses of human chorionic gonadotropin (hCG) on the ovulatory response of a first-wave dominant follicle and subsequent plasma progesterone (P4) concentrations. Lactating Ho
Externí odkaz:
https://doaj.org/article/945191448bd54c859802e183420b5d69
Autor:
M.C. Wiltbank, A.H. Souza, P.D. Carvalho, A.P. Cunha, J.O. Giordano, P.M. Fricke, G.M. Baez, M.G. Diskin
Publikováno v:
Animal, Vol 8, Iss , Pp 70-81 (2014)
The discovery of progesterone (P4) and elucidation of the mechanisms of P4 action have an important place in the history of endocrinology and reproduction. Circulating P4 concentration is determined by a balance between P4 production, primarily by th
Externí odkaz:
https://doaj.org/article/6da4325671b3413fb0402681cac2dbb7
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
Publikováno v:
Journal of Dairy Science. 106:3246-3267
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b4ef2c52a21cf4e938a353785e7d678
https://doi.org/10.3168/jds.2022-22396
https://doi.org/10.3168/jds.2022-22396