Zobrazeno 1 - 10
of 20
pro vyhledávání: '"R.A. Sterry"'
Publikováno v:
Journal of Dairy Science. 90:5509-5517
Our objective was to assess the effect of pretreatment with PGF(2alpha) 12 d before initiation of a protocol for resynchronization of ovulation (Resynch) using an Ovsynch protocol. Lactating Holstein cows diagnosed not pregnant 31 d after a timed art
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c8683cfcbd270a559c36914c4d09db7
https://doi.org/10.3168/jds.2007-0315
https://doi.org/10.3168/jds.2007-0315
Publikováno v:
Theriogenology. 67:1211-1216
To compare two intervals from the PGF 2α injection to the second GnRH injection + timed artificial insemination (TAI) of Ovsynch, lactating Holstein cows received their first postpartum TAI after Presynch + Ovsynch ( n = 352) and second and greater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::607be71552edb411275b21442e659ad2
https://doi.org/10.1016/j.theriogenology.2007.01.004
https://doi.org/10.1016/j.theriogenology.2007.01.004
Publikováno v:
Scopus-Elsevier
To compare 2 strategies for systematically resynchronizing ovulation, lactating Holstein cows (n = 763) at various days in milk and prior artificial insemination services were assigned randomly at timed AI (TAI) to receive the first GnRH injection of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5de38d1266f04727d6b09625bd594898
https://doi.org/10.3168/jds.s0022-0302(06)72280-9
https://doi.org/10.3168/jds.s0022-0302(06)72280-9
Publikováno v:
Journal of dairy science. 92(8)
The objective of this study was to compare 2 strategies for resynchronization of ovulation based on nonpregnant diagnoses using transrectal ultrasonography or a pregnancy-associated glycoprotein (PAG) ELISA. Lactating Holstein cows (n = 1,038) were s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6adebee7303eaaab24f3ddb989663fd4
https://pubmed.ncbi.nlm.nih.gov/19620645
https://pubmed.ncbi.nlm.nih.gov/19620645
Publikováno v:
Theriogenology. 71(3)
The primary objective was to evaluate fertility of anovular dairy cows given GnRH 4 d after first postpartum timed AI (TAI). Secondary objectives were to determine ovulatory response to treatment, effect of treatment on serum progesterone (P(4)) conc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5d14755ce8322fd83a49e8c062a1355
https://pubmed.ncbi.nlm.nih.gov/18926565
https://pubmed.ncbi.nlm.nih.gov/18926565
Autor:
A.P. Cunha, R.A. Sterry, J.N. Guenther, C.D. Silva, D.J. Brusveen, P.M. Cunha, Milo C. Wiltbank, Elena Silva
Publikováno v:
Journal of dairy science. 91(3)
Based on previous research, we hypothesized that Cosynch at 72 h [GnRH-7 d-PGF(2alpha)-72 h-GnRH + artificial insemination (AI)] would result in a greater number of pregnancies per AI (P/AI) than Cosynch at 48 h. Further, we hypothesized that P/AI wo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e915ce1a42bfa11ae22c4719a3dafedb
https://pubmed.ncbi.nlm.nih.gov/18292260
https://pubmed.ncbi.nlm.nih.gov/18292260
Publikováno v:
Journal of dairy science. 90(10)
To determine the accuracy of a pregnancy-associated glycoprotein (PAG) ELISA in identifying pregnancy status 27 d after timed artificial insemination (TAI), blood samples were collected from lactating Holstein cows (n = 1,079) 27 d after their first,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::104239cd19beb5b8a5a6e92f4ea5bd42
https://pubmed.ncbi.nlm.nih.gov/17881682
https://pubmed.ncbi.nlm.nih.gov/17881682
Publikováno v:
Journal of dairy science. 90(7)
Our objective was to determine whether a single examination of ovaries using transrectal ultrasonography at the first GnRH injection of a Presynch + Ovsynch protocol is a useful method for assessing cyclicity status and thereby enabling differential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc5140b0b3e3cb007617617fc67cbe5e
https://pubmed.ncbi.nlm.nih.gov/17582109
https://pubmed.ncbi.nlm.nih.gov/17582109
Publikováno v:
Scopus-Elsevier
Lactating Holstein cows were assigned randomly to treatments to improve fertility after first postpartum timed artificial insemination (TAI). In Experiment 1, cows received no treatment (control; n = 9), a controlled internal drug releasing (CIDR) in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cf4eda528a45d142eaf8691008dda05
https://pubmed.ncbi.nlm.nih.gov/17033010
https://pubmed.ncbi.nlm.nih.gov/17033010
Publikováno v:
Scopus-Elsevier
Holstein dairy heifers were randomly assigned to 1 of 2 treatments to determine whether a presynchronization strategy using GnRH would improve reproductive performance after synchronization of ovulation and timed artificial insemination (TAI). Heifer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92641b453848f63b710f2041d76ef6de
http://www.scopus.com/inward/record.url?eid=2-s2.0-33749375712&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-33749375712&partnerID=MN8TOARS
