Plasma LH, FSH, testosterone, prolactin and androstenedione in male white-tailed deer after acth and dexamethasone administration

Bubenik, George A.; Smith, J. H.; Pomerantz, David K.; Schams, D.

doi:10.1016/0300-9629(90)90026-o

Cited by 8 publications

(2 citation statements)

References 29 publications

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“…Details of RIA for testosterone, LH and cortisol were described in detail in previous publications [1,4,16,22,25]. Testosterone assay was validated for white-tailed deer plasma by recovery experiment.…”

Section: Determination Of Hormonesmentioning

confidence: 99%

The effect of ACTH on the GnRH-induced release of LH and testosterone in male white-tailed deer

Bubenik

Brown

Schams³

et al. 1999

Comparative Biochemistry and Physiology Part C: Pharmacology, T

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In order to investigate the possible link between stress and the impairment of the reproductive system, 12 yearling white-tailed bucks, born to mothers captured wild in southern Texas, were immobilized every 6 weeks over the period of 1 year. In half of experiments deer were injected i.m. with 20 IU of ACTH; in the second half, we used saline only. Simultaneously, in each experiment we also injected all deer i.m. with 100 vg of GnRH. Three blood samples were taken before and seven after treatment and plasma levels of cortisol, LH and testosterone (T) were later measured by RIA. Half of our yearlings were born to mothers which were fed high-protein-high-energy (HP-HE) diet during their pregnancy; the other half was fed high-protein-low-energy diet (HP-LE). ACTH increased cortisol levels in both nutritional regimes. Cortisol levels in controls decreased with time but a more pronounced reduction was observed in HP-HE bucks as compared to HP-LE deer. GnRH significantly increased LH and T levels. However, only in summer, LH levels were higher in HP-LE fed deer than those fed HP-HE; in other seasons they were equal. Conversely, only in winter T levels were elevated in HP-HE fed deer as compared with HP-LE deer. We concluded that the pronounced suppression of reproductive hormones by ACTH or cortisol reported previously in domestic ungulates does not occur in white-tailed deer yearlings. Conversely, the low level of energy provided in food to mothers during their pregnancies significantly reduced peak levels of testosterone in their male offspring. This study further proved that white-tailed deer is a highly adaptable cervid species resistant to environmental stress.

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Section: Determination Of Hormonesmentioning

confidence: 99%

The effect of ACTH on the GnRH-induced release of LH and testosterone in male white-tailed deer

Bubenik

Brown

Schams³

et al. 1999

Comparative Biochemistry and Physiology Part C: Pharmacology, T

Self Cite

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show abstract

“…Two peaks of LH and T and the 4 months of elevated FSH may be related to a long period of spermatogenesis observed in this species (George et al, 1996). The role of the adrenocortical system in the regulation of plasma levels of reproductive hormones was investigated and plasma levels of LH, testosterone (T), FSH, prolactin (PRL) and androstenedione were determined in male white-tailed deer after ACTH, The result showed no effect on FSH and PRL levels (Bubenik et al, 1990).…”

mentioning

confidence: 99%

Seasonal influence on sexual hormones and semen plasma parameters of Arabian sand gazelles (Gazalla subgutrosa marica) in Saudi Arabia

Alkahtane¹

2014

Afr. J. Biotechnol.

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Plasma levels of cortisol, testosterone and growth hormone in pudu (Pudu puda Molina) after ACTH administration

Bubenik

Reyes-Toledo²

1994

Comparative Biochemistry and Physiology Part A: Physiology

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Plasma LH, FSH, testosterone, prolactin and androstenedione in male white-tailed deer after acth and dexamethasone administration

Cited by 8 publications

References 29 publications

The effect of ACTH on the GnRH-induced release of LH and testosterone in male white-tailed deer

The effect of ACTH on the GnRH-induced release of LH and testosterone in male white-tailed deer

Seasonal influence on sexual hormones and semen plasma parameters of Arabian sand gazelles (Gazalla subgutrosa marica) in Saudi Arabia

Plasma levels of cortisol, testosterone and growth hormone in pudu (Pudu puda Molina) after ACTH administration

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