Abstract:

Postpartum injection of human chorionic gonadotrophin: Effects on sow ovarian follicles

Jessica Zemitis; Emmy G. Bouwman; P. Langendijk, PhD; W. H. E. J. van Wettere, PhD; R. N. Kirkwood, DVM, PhD, Diplomate ECAR

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Sows received 1000 IU human chorionic gonadotrophin at 24 or 48 hours after farrowing or served as controls. Ovaries were examined ultrasonically at 0, 24, 48, 72, 96, and 120 hours. No sows ovulated by 120 hours, although corpora lutea at 10 days indicated a later ovulation in some sows.

Keywords: farrowing, human chorionic gonadotrophin, ovulation, ultrasound


RIS citationCite as: Zemitis J, Bouwman EG, Langendijk P, et al. Postpartum injection of human chorionic gonadotrophin: Effects on sow ovarian follicles. J Swine Health Prod 2015;23(3):137-139.

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