Sexual Behavior in Ovariectomized Bitches in Response to Estrogen and Progesterone Treatments

Concannon, Patrick W.; Weigand, N.; Wilson, S.; Hansel, William

doi:10.1095/biolreprod20.4.799

Cited by 24 publications

(11 citation statements)

References 7 publications

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“…Estrus in the bitch is characterized by re flex and sometimes spontaneous stiffening and deviation of the tail, standing firmly to permit a male to mount, and reflex lordosislike presentation of the vulva and perineum (Concannon et aL, 1979b;Beach et aL, 1982). Estrous behavior in dogs is a re sponse to a decline in estrogen, and is facili tated by a rise in progesterone, both of which usually occur near the onset of estrus (Concannon et aL, 1979b;Beach et aL, 1982).…”

Section: Estrusmentioning

confidence: 99%

“…Subtle aspects of canine sex behavior have been studied in detail, including the proceptive, playful, teasing behavior of pro estrus, and the receptive, sometimes sexu ally aggressive and initiating behavior of es trus, as well as the spinal reflexes to investigation by males (Beach et al, 1982;Concannon et al, 1979b). The proceptive behavior of proestrus is a response to an ele vation in estrogen, while the positive re flexes and receptivity of estrus are a re sponse to estrogen withdrawal (Concannon et al, 1979b).…”

Section: Metestrusmentioning

confidence: 99%

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Reproduction in the Dog and Cat

Concannon¹

1991

Reproduction in Domestic Animals

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Section: Estrusmentioning

confidence: 99%

Section: Metestrusmentioning

confidence: 99%

Reproduction in the Dog and Cat

Concannon¹

1991

Reproduction in Domestic Animals

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“…Oestrogen and progesterone have been considered necessary for normal proceptivity of the oestrous bitch and attractiveness to the male (Beach & Merari, 1970;Concannon, Weigand, Wilson & Hansel, 1979). Our results which indicate no obvious abnormalities in the pattern or concentrations of either of these hormones in the plasma of bitches studied may reflect an inability of neural centres governing proceptivity to respond to what appeared to be a normal stimulus.…”

Section: Discussionmentioning

confidence: 52%

Some aspects of the aetiology, diagnosis and treatment of infertility in the bitch

Renton¹,

Munro²,

Heathcote³

et al. 1981

Reproduction

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The nature of the infertility in 19 bitches was investigated: 10 animals were considered to be normal on the basis of their sexual behaviour, vaginal cytology and plasma oestrogen and progesterone concentrations. Successful conception and whelping occurred for 6 of the 10 bitches. The previous apparent infertility was probably attributable to defective mating management by the owners. Although follicular development and ovulation occurred in 4 of the remaining bitches, oestrus was not exhibited: AI resulted in 3 conceptions. The other 5 animals exhibited only some of the normal characteristics of pro-oestrus. Another group of 10 anoestrous bitches (normal and pathological) was treated with PMSG or stilboestrol. PMSG induced follicular development in 5 of 6 bitches treated. The magnitude of the induced plasma oestrogen peak varied considerably. Delay in the initiation of oestrous behaviour occurred relative to the plasma gonadal steroid pattern in 2 of the 3 bitches that showed oestrus. Stilboestrol induced a sequence of behavioural changes and plasma steroid concentrations and patterns similar to those found in the normal oestrous bitch, but none conceived.

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“…Disruption of the estradiol:progesterone ratio may also have behavioral consequences that must be considered. The steroid hormones act in concert producing a profound affect on sexual behavior in many species (Pfaff et al, 1994;Johnson and Everitt, 2000) including domestic dogs (Concannon et al, 1979;Chakraborty et al, 1980). Estrogen and progesterone receptors have been identified in brain tissue and presumably have a relationship similar to those in the reproductive organs.…”

Section: Introductionmentioning

confidence: 99%

“…Estrogen and progesterone receptors have been identified in brain tissue and presumably have a relationship similar to those in the reproductive organs. Working with ovariectomized bitches, Concannon et al (1979) found bitches exposed to estradiol first then treated with progesterone had greater sexual behavior scores; and the effect was more pronounced when estradiol was withdrawn. Also, bitches with estradiol continuing along with progesterone treatment displayed protracted estrous behavior.…”

Section: Introductionmentioning

confidence: 99%

Integrity of mating behaviors and seasonal reproduction in coyotes (Canis latrans) following treatment with estradiol benzoate

Carlson

Gese

2010

Animal Reproduction Science

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Coyotes (Canis latrans) are seasonally monestrous and form perennial pair-bonds. Breeding is dominated by each pack's alpha male and female, and both sexes share responsibility for territory defense and pup-rearing. They are also opportunistic predators on domestic livestock and pets. But while dominant adults have been implicated as primary killers, depredation is reduced when coyotes are without pups. Contraception, therefore, may represent a non-lethal solution for conflicts between coyotes and humans. Steroid hormones successfully control fertility in some species, but have been considered contraindicated in wildlife and canids in particular; specific concerns include possible induction of aberrant behavior, or uterine and hematopoietic pathologies. Herein we describe a study examining the physiological effectiveness, health safety, and behavioral consequences following treatment of estrous coyotes with exogenous estrogen. We treated captive adult female coyotes in estrus with 0.01mg/kg estradiol benzoate (EB), either before (n=5) or immediately after ovulation (n=6), then documented reproductive outcome, physiological variables and behavioral responses, during and after treatment. Pregnancy was averted in six females treated after ovulation, suggesting that appropriate timing of treatment proved crucial. A transient suppression of sexual behavior was observed, and in some cases, estrus appeared slightly lengthened. However, neither ovulation nor mating behavior was fully suppressed. Importantly, non-pregnant females (and their mates) displayed diestrous socio-sexual behavior similar to pregnant coyotes (behavioral pseudopregnancy). Furthermore, non-pregnant coyotes did not mate again until the next native breeding season, and we observed no deleterious physiological effects during diestrus or subsequent ovarian cycles.

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Sexual Behavior in Ovariectomized Bitches in Response to Estrogen and Progesterone Treatments

Abstract: Sex behavior was

Cited by 24 publications

References 7 publications

Reproduction in the Dog and Cat

Reproduction in the Dog and Cat

Some aspects of the aetiology, diagnosis and treatment of infertility in the bitch

Integrity of mating behaviors and seasonal reproduction in coyotes (Canis latrans) following treatment with estradiol benzoate

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