Characterization of the estrous cycle in female beluga ( Delphinapterus leucas ) using urinary endocrine monitoring and transabdominal ultrasound: Evidence of facultative induced ovulation

Highlights ► Urinary hormone enzyme immunoassays and ovarian ultrasound validated in the beluga. ► Beluga demonstrate reproductive seasonality. ► Belugas are facultative induced ovulators with evidence of spontaneous ovulation.

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Bibliographic Details
Published in:	General and comparative endocrinology Vol. 175; no. 3; pp. 389 - 397
Main Authors:	Steinman, K.J, O’Brien, J.K, Monfort, S.L, Robeck, T.R
Format:	Journal Article
Language:	English
Published:	United States Elsevier Inc 01-02-2012
Subjects:	adults animal ovaries Animals assisted reproductive technologies Beluga Whale - physiology conjugated estrogens Delphinapterus leucas Endocrinology & Metabolism Estrogens - urine Estrous cycle Estrous Cycle - physiology excretion Female Follicular ultrasonography Gonadal Steroid Hormones - urine Immunoassay immunoassays Induced ovulation luteinizing hormone Luteinizing Hormone - urine Male monitoring Ovary - diagnostic imaging ovulation Ovulation - physiology Progestins - urine Prolactin Prolactin - urine Reproducibility of Results Sexual Behavior, Animal - physiology ultrasonics Ultrasonography White whale Estrous cycle Follicular ultrasonography White whale Prolactin Induced ovulation
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Summary:	Highlights ► Urinary hormone enzyme immunoassays and ovarian ultrasound validated in the beluga. ► Beluga demonstrate reproductive seasonality. ► Belugas are facultative induced ovulators with evidence of spontaneous ovulation.
Bibliography:	http://dx.doi.org/10.1016/j.ygcen.2011.11.008 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0016-6480 1095-6840
DOI:	10.1016/j.ygcen.2011.11.008