Estradiol and Progesterone in Blood Serum during the Bovine Estrous Cycle

Wettemann, R. P.; Hafs, H. D.; Edgerton, L. A.; Swanson, L. V.

doi:10.2527/jas1972.3461020x

Cited by 126 publications

(42 citation statements)

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“…The variation in plasma progesterone levels during the normal oestrous cycle is very similar to that reported by other workers (Glencross Domeki et al 1972Shemesh et al 1972Blockey et al 1972Christensen et al 1974Dobson et al 1973Wettemann et al 1972Henricks et al 1971Glencross et al 1973Echternkamp & Hansel 1971Batson et al 1973 This paper Pope et at. 1965 (1) Fluorometry, (2) CPB with chromatography, (3) RIA without chromatography, (4) RIA with chromatography, (5) et al 1970).…”

Section: Discussionsupporting

confidence: 88%

Plasma hormone levels in the cow

Smith¹,

Fairclough²,

Payne³

et al. 1975

New Zealand Journal of Agricultural Research

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Progesterone and oestradiol concentrations in the peripheral plasma of 12 dairy cows during the oestrous cycle were determined by competitive protein-binding and radioimmunoassay respectively. The levels of progesterone reached a peak of 6-7 ng/ml in mid-cycle, then began to fall 4 days before oestrus to values of about 1 ng/ml at oestrus and remained low for a further 4 days. Peak levels of oestradiol (11.2 ± 1.3 pg/ml, s.e.) occurred on the day before oestrus and a second peak (7.9 ± 2.9 pg/ml) occurred on Days 6-8 of the cycle.

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Section: Discussionsupporting

confidence: 88%

Plasma hormone levels in the cow

Smith¹,

Fairclough²,

Payne³

et al. 1975

New Zealand Journal of Agricultural Research

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“…The pattern of plasma progesterone and oestradiol concentrations during the oestrous cycle in buffaloes was similar to that reported for cattle (Wettemann, Hafs, Edgerton & Swanson, 1972), although the progesterone levels during the luteal phase were relatively low in buffaloes. This low level of progesterone (peak values: 2-3 ng/ml) supports the findings of Kamonpatana, Kunawongkrit, Bodhipaksha & Luvira (1979) and Rao & Pandey (1982).…”

Section: Discussionsupporting

confidence: 83%

Plasma concentrations of LH, progesterone and oestradiol during the oestrous cycle in swamp buffaloes (Bubalus bubalis)

Kanai¹,

Shimizu²

1984

Reproduction

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“…(Convey, 1973). Cummins et al (1972), Wetteman et al (1972) and Echternkamp and Hansel (1973) suggest oestrogen is the trigger for the pre-ovulatory LH peak in the cyclic cow.…”

Section: Introductionmentioning

confidence: 99%