Recent advancements in the hormonal stimulation of ovulation in swine

Figures & data

Figure 1 Illustration of follicle development and hormones in the weaned sow during the follicular phase showing small (<3 mm), medium (3–6.4 mm), and large (>6.5 mm) follicles and the dominant type of follicle hormone receptor.

Abbreviations: FSH, follicle-stimulating hormone; LH, luteinizing hormone.

Figure 2 Representative hormonal profile of LH (ng/mL), FSH (ng/mL), estradiol (pg/mL), progesterone (ng/mL), and GnRH (pg) during proestrus in relation to the timing of estrus and OV in the mature female pig.

Note: Data from Knox et al,³⁶ Soede et al,⁴⁴ Jonas et al,⁴⁵ and Schillo et al.⁴⁶
Abbreviations: LH, luteinizing hormone; FSH, follicle-stimulating hormone; GnRH, gonadotropin-releasing hormone; OV, ovulation; E2, Estradiol; P4, progesterone.

KnoxRVVatziasGNaberCHZimmermanDRPlasma gonadotropins and ovarian hormones during the estrous cycle in high compared to low ovulation rate giltsJ Anim Sci200381124926012597396

 PubMed Web of Science ®Google Scholar

SoedeNMHelmondFAKempBPeriovulatory profiles of oestradiol, LH and progesterone in relation to oestrus and embryo mortality in multiparous sows using transrectal ultrasonography to detect ovulationJ Reprod Fertil199410136336417966019

 PubMedGoogle Scholar

JonasHABurgerHGCummingIAFindlayJKDe KretserDMRadioimmunoassay for luteinizing hormone-releasing hormone (LHRH): its application to the measurement of LHRH in ovine and human plasmaEndocrinology19759623843931090433

 PubMed Web of Science ®Google Scholar

SchilloKKLeshinLSKuehlDJacksonGLSimultaneous measurement of luteinizing hormone-releasing hormone and luteinizing hormone during estradiol-induced luteinizing hormone surges in the ovariectomized eweBiol Reprod19853336446523902107

 PubMed Web of Science ®Google Scholar