The Effect of Progesterone on the Estrous Response of Estrogen-Conditioned Ovariectomized Cows

Melampy, R. M.; Emmerson, M. A.; Rakes, J. M.; Hanka, L. J.; Eness, Paul G.

doi:10.2527/jas1957.164967x

Cited by 45 publications

(14 citation statements)

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“…An inhibitory effect of progesterone on ejaculation has previously been reported in the rhesus monkey by Michael, Herbert & Saayman (1966) and Michael, Saayman & Zumpe (1968). Progesterone has also been shown to antagonize oestrogen-induced sexual behaviour in non-primate species such as the sow (Baker, Ulberg, Grummer & Casida, 1954), the cow (Melampy, Emmerson, Rakes, Hanka & Eness, 1957) and the guinea-pig (Goy, Phoenix & Young, 1966), an antagon¬ ism akin to the action of these hormones on the sex skin of the baboon (Gillman, 1942).…”

Section: Discussionmentioning

confidence: 91%

Sexual Behaviour, Swelling of the Sex Skin and Plasma Progesterone in the Pigtail Macaque

Bullock¹,

Paris²,

Goy³

1972

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The sexual behaviour of heterosexual pairs of eight female and six male adult pigtail monkeys, Macaca nemestrina, was observed for a 15-min testing period on alternate days of a complete menstrual cycle. The behaviour was correlated with changes in swelling of the sexual skin and in plasma progesterone. A close relation between the peak of sex skin swelling and the time of ovulation was established by laparotomy. Aggressive behaviour was spasmodic and there was very little display of social patterns of behaviour, such as grooming or pouting. 'Presenting' by the female was significantly more frequent in the follicular phase but the majority of other behaviour patterns, including female 'reaching back', frequency of mounting and intromission by the male and number of pelvic thrusts per intromission, did not differ significantly between follicular and luteal phases of the menstrual cycle. The proportion of tests on which ejaculation occurred rose during the follicular phase and reached a maximum at the time of peak sex skin swelling. During the luteal phase, a rise in ejaculatory latency and a marked decline in the incidence of ejaculation, coincided with detumescence of the female's sex skin and elevation of her plasma progesterone. The reduced incidence of ejaculation in these time-limited tests was accompanied by a decrease in the rate of intromission and rate of pelvic thrusting. The ejaculatory behaviour of the male was sensitive to the hormonal status of the female and was inhibited by the presence of progesterone in her blood.

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Section: Discussionmentioning

confidence: 91%

Sexual Behaviour, Swelling of the Sex Skin and Plasma Progesterone in the Pigtail Macaque

Bullock¹,

Paris²,

Goy³

1972

Reproduction

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“…Previous reports have indicated that oestrogen injections may produce oestrous behaviour in ovariectomized cows but the results have been inconsistent (Asdell, De Alba & Roberts, 1945;Melampy, Emmerson, Rakes, Hanka & Eness, 1957;Melampy & Rakes, 1958; Ray, 1965;Hobson & Hansel, 1972;Short, Howland, Rändle, Christensen & Bellows, 1973;Nancarrow & Radford, 1976). Some of the differences observed might be due to the various doses of oestrogen administered, the duration of administration, the injection vehicle, or synergism with other hormones.…”

Section: Introductionmentioning

confidence: 58%

“…Melampy et al (1957) observed oestrous behaviour in 2 cows that received a single dose of <250 pg but Ray (1965) concluded that 300 pg was the minimum dose that might produce receptivity. In other single-injection trials, oestrus was induced in 6 of 12 animals treated with 500 pg oestradiol propionate (Holy & Hrivnak, 1965) and in all of 6 cows receiving 500 pg oestradiol benzoate (Nancarrow & Radford, 1976).…”

Section: Discussionmentioning

confidence: 96%

Sexual behaviour in ovariectomized cows treated with oestradiol benzoate and testosterone propionate

Nessan¹,

King²

1981

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Sexual behaviour was not induced in ovariectomized cows by single doses of 100 or 250 micrograms oestradiol benzoate or by 3 injections of 50 micrograms oestradiol benzoate given at 12-h intervals. Treatment with 3 doses of 250 or 500 micrograms oestradiol benzoate at 12-h intervals produced plasma levels that were similar to those during pro-oestrus and oestrus in intact cows, and 11 of 12 treated animals showed oestrous behaviour. The higher dose resulted in a more pronounced response in 'mounting' and 'mounted' behaviour and a shorter interval to the onset of behavioural signs of oestrus. Oestrous behaviour was not observed in any ovariectomized cows treated with 1,2 or 20 mg testosterone propionate, doses that resulted in plasma levels comparable to those in intact pro-oestrous animals. Treatment with pharmacological doses of testosterone propionate resulted in transient mounting and interest in similarly treated females, but the results were inconsistent.

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“…Variation in follicle numbers was greatest in heifers treated with progesterone. The amount of oestrogen used was considerably less than that required to elicit oestrus in the ovariectomized cow (Melampy, Emmerson, Rakes, Hanka & Eness, 1957;Lamond, unpublished). The results emphasize the need to investigate the rela¬ tionship between blood levels of ovarian steroids during the period of luteal regression and follicular maturation and infertility in dairy and beef cows due to ovarian dysfunction.…”

Section: (Received 22nd August 1968)mentioning

confidence: 97%

Ovulation Block With Stilboestrol in the Cow

Dr¹

1969

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The Effect of Progesterone on the Estrous Response of Estrogen-Conditioned Ovariectomized Cows

Cited by 45 publications

References 0 publications

Sexual Behaviour, Swelling of the Sex Skin and Plasma Progesterone in the Pigtail Macaque

Sexual Behaviour, Swelling of the Sex Skin and Plasma Progesterone in the Pigtail Macaque

Sexual behaviour in ovariectomized cows treated with oestradiol benzoate and testosterone propionate

Ovulation Block With Stilboestrol in the Cow

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