Zobrazeno 1 - 10
of 94
pro vyhledávání: '"S.E. Echternkamp"'
Autor:
Alaa A. Hassan, R.R. Maurer, T.H. Wise, Moustafa M. Zeitoun, S.E. Echternkamp, A.M. Yassen, A.Z. Fathelbab
Publikováno v:
Theriogenology. 35(3)
The long half-life of pregnant mare serum gonadotrophin (PMSG) reduces its application in the superovulation of cattle; thus, a monoclonal antibody to PMSG (anti-PMSG) was administered at the onset of estrus to increase the number of transferable emb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ea69995df5ac9e94ab2bc05607ea331
https://pubmed.ncbi.nlm.nih.gov/16726934
https://pubmed.ncbi.nlm.nih.gov/16726934
Autor:
B.D. Schanbacher, S.E. Echternkamp
Publikováno v:
Theriogenology. 33:222
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6991db7d413e62c31a83c6d346794d97
https://doi.org/10.1016/0093-691x(90)90646-b
https://doi.org/10.1016/0093-691x(90)90646-b
Publikováno v:
Animal Science. 43:557-560
Post-Partum anoestrus is lengthened by a thin body condition (Whitman, 1975) and malnutrition (Holness, Hopley and Hale, 1978). Post-partum nutrient intake has been implicated in both pituitary (Rutter and Randel, 1984) and ovarian (Wiltbank, Rowden,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c7bf1ec01207c5f3b202be9715293cf
https://doi.org/10.1017/s0003356100002774
https://doi.org/10.1017/s0003356100002774
Autor:
R.R. Maurer, S.E. Echternkamp
Publikováno v:
Theriogenology. 17:11-22
Luteinizing hormone (LH), progesterone and estradiol profiles in peripheral blood serum were compared among parous and nonparous females with normal, abnormal or no embryonic development. Hormonal profiles between parous and nonparous females of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80ebfd9ad53ed11a62ac2175669a8eeb
https://doi.org/10.1016/0093-691x(82)90111-x
https://doi.org/10.1016/0093-691x(82)90111-x
Autor:
S.E. Echternkamp, R.R. Maurer
Publikováno v:
Theriogenology. 20:627-637
High-fertility (control cows) and low-fertility (cows and heifers not pregnant after two consecutive breeding seasons -- twice-open) cyclic bovine females were treated with a single injection of 1000 IU of human chorionic qonadotropin (HCG)orlOO ng o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afbadaad4465d8f9ff86218468c9f6d9
https://doi.org/10.1016/0093-691x(83)90183-8
https://doi.org/10.1016/0093-691x(83)90183-8
Autor:
S.E. Echternkamp, D.D. Lunstra
Publikováno v:
Theriogenology. 10:65-71
The interval from onset of estrus to preovulatory luteinizing hormone (LH) release, conception and fertilization rates, and number of accessory spermatozoa per ovum at 48 hr postmating in untreated cyclic ewes and in progestogen-pregnant mare serum g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3a1feab227bcda47f5be28c28a8b142
https://doi.org/10.1016/0093-691x(78)90081-x
https://doi.org/10.1016/0093-691x(78)90081-x
Autor:
S.E. Echternkamp
Publikováno v:
Theriogenology. 22(3)
The influence of handling stress on tonic LH secretion was evaluated in eight ovariectomized Hereford cows. Four cows (acclimated group) were previously acclimated to stanchions and procedures for blood collection, whereas the other four cows (unaccl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d72bd01f0751e96d6e37f7e610485a0
https://pubmed.ncbi.nlm.nih.gov/16725962
https://pubmed.ncbi.nlm.nih.gov/16725962
Autor:
S.E. Echternkamp
Publikováno v:
Theriogenology. 18(1)
Breed and seasonal effects on LH release, ovarian steroid secretion, and ovulation were evaluated in mature Finnish Landrace (Finn) and Hampshire ewes that received either a progestogen-PMSG treatment in May, July and November (experiment 1) or estra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cd06c0fe70274c4abc136228ceac598
https://pubmed.ncbi.nlm.nih.gov/16725730
https://pubmed.ncbi.nlm.nih.gov/16725730
Publikováno v:
Theriogenology. 18(3)
The influence of nutrition during the last trimester of pregnancy and the early postpartum period on postpartum LH secretion was evaluated in two-year-old Hereford and Simmental heifers maintained on a high or low plane of nutrition (experiment 1) or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e4b7aeb6de41ae2fc7a89c29fb2f5af
https://pubmed.ncbi.nlm.nih.gov/16725750
https://pubmed.ncbi.nlm.nih.gov/16725750
Autor:
S.E. Echternkamp, D.D. Lunstra
Publikováno v:
Theriogenology. 29(4)
A procedure for testicular biopsy was developed and tested in rams at 14, 18 and 22 wk of age. The biopsy procedure produced a tissue sample with minimal cell-to-cell disruption and caused no detectable detriment to testicular development in rams. At
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0945d54b93b8f40891a95e6a3ef91842
https://pubmed.ncbi.nlm.nih.gov/16726401
https://pubmed.ncbi.nlm.nih.gov/16726401