Zobrazeno 1 - 10
of 13
pro vyhledávání: '"J. M. Obst"'
Autor:
J. M. Obst, I. D. Johnsson
Publikováno v:
Animal Science. 38:57-68
One hundred and five Hereford heifers were reared on varying amounts of the same diet of grain and hay to grow at either high (H: 0·91 kg/day), medium (M: 0·67 kg/day) or low (L: 0·55 kg/day) rates between 2 and 8 months of age. Between 8 and 14 m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4745e1f3f6d974742af2ddbae2b8dec3
https://doi.org/10.1017/s0003356100041350
https://doi.org/10.1017/s0003356100041350
Publikováno v:
Animal Science. 29:271-276
The effect of haemoglobin types A and B on reproductive performance of ewes grazing oestrogenic pastures was studied in four commercial flocks in 1973 and in an additional five in 1974 (a total of nine flocks). The number of ewes lambing per ewe mate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a8331574a1011c89ec3973cdfed5f53
https://doi.org/10.1017/s0003356100023497
https://doi.org/10.1017/s0003356100023497
Publikováno v:
Endocrinology. 108:639-646
Plasma concentrations of PRL, LH, cortisol, FSH, and testosterone were determined in pinealectomized (Px) and control rams at four times during a year. Basal levels of PRL decreased between spring and winter in controls from 44 +/- 2 ng/ml (mean +/-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1db9bcce5b8ac9ce416fdcbb54ddd41c
https://doi.org/10.1210/endo-108-2-639
https://doi.org/10.1210/endo-108-2-639
Publikováno v:
Reproduction. 26:259-262
Summary. Progesterone concentrations in the peripheral plasma of pregnant ewes grazing oestrogenic (yarloop clover) and non-oestrogenic (rye grass) pastures were compared. Whilst the overall pattern of plasma progesterone throughout pregnancy in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e8fe9b13c950ad84142bd4a98f89859
https://doi.org/10.1530/jrf.0.0260259
https://doi.org/10.1530/jrf.0.0260259
Autor:
J. M. Obst, R. F. Seamark
Publikováno v:
Reproduction. 21:545-547
Peripheral plasma progesterone concentrations were determined throughout the reproductive cycle of ewes grazing oestrogenic (Yarloop clover) pastures to provide an index of corpus luteum function. In ewes failing to conceive, luteal function declined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::160b1a9b2fafabfffda58ea5d4ee1d0d
https://doi.org/10.1530/jrf.0.0210545
https://doi.org/10.1530/jrf.0.0210545
Publikováno v:
Australian journal of biological sciences. 32(2)
Peripheral plasma progesterone and corticosteroid concentrations were studied in ewes grazing oestrogenic pastures during oestrus, pregnancy and parturition in 1974 and during pregnancy in 1975. Haemoglobin (Hb) type A ewes had significantly higher m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce4c2493eca01b0ffc9cd8b2652b2550
https://pubmed.ncbi.nlm.nih.gov/496740
https://pubmed.ncbi.nlm.nih.gov/496740
Autor:
R F, Seamark, D J, Kennaway, C D, Matthews, A J, Fellenberg, G, Phillipou, P, Kotaras, J E, McIntosh, E, Dunstan, J M, Obst
Publikováno v:
Journal of reproduction and fertility. Supplement. 30
The life time reproductive performance of 2 flocks of Merino crossbred ewes pinealectomized at 7-60 days of age, and maintained in South Australia did not differ from that of sham-operated control animals kept in the same flocks. The pineal gland is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::95b5e01f67917b06ef47d4f92ccc0174
https://pubmed.ncbi.nlm.nih.gov/6762420
https://pubmed.ncbi.nlm.nih.gov/6762420
Autor:
C. G. Winfield, Mildred E. Cerini, J. R. Goding, I. A. Cumming, Joan M. Buckmaster, A. H. Williams, J. M. Obst, Chamley Wa
Publikováno v:
Biology of reproduction. 9(1)
Serial measurements (up to four times per day) of maternal plasma progesterone, corticosteroids, estrone, estradiol-17�, LH, and prolactin have been made in six sheep, during late pregnancy and at parturition (Day 0). The mean progesterone concentr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8cf8069d1c7f5889110ab7d22c8f893
https://pubmed.ncbi.nlm.nih.gov/4732258
https://pubmed.ncbi.nlm.nih.gov/4732258
Autor:
G Phillipou, James E. A. McIntosh, R F Seamark, J. M. Obst, P Kotaras, E. A. Dunstan, David J. Kennaway, A. J. Fellenberg, Colin D. Matthews
Publikováno v:
Scopus-Elsevier
The life time reproductive performance of 2 flocks of Merino crossbred ewes pinealectomized at 7-60 days of age, and maintained in South Australia did not differ from that of sham-operated control animals kept in the same flocks. The pineal gland is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66297db29049968c6f82d8229a57c9e0
http://www.scopus.com/inward/record.url?eid=2-s2.0-0019756846&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0019756846&partnerID=MN8TOARS
Publikováno v:
Animal Science. 32:223-224
Field data were analysed in an attempt to identify factors contributing to differences between haemoglobin types n i the proportion of ewes lambing per ewe exposed to the ram in flocks grazing oestrogenic pastures. The number of ewes mated and the pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4da3fc4ca96e27506f36c996e5525ad
https://doi.org/10.1017/s0003356100025058
https://doi.org/10.1017/s0003356100025058