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Figure 2 | Acta Veterinaria Scandinavica

Figure 2

From: Endocrine and Ovarian Changes in Response to the Ram Effect in Medroxyprogesterone Acetate-primed Corriedale Ewes During the Breeding and Nonbreeding Season

Figure 2

Fourteen ewes were isolated from contact with rams for 30 days and primed for 6 days with an intravaginal sponge containing 60 mg of MAP during the nonbreeding season; rams were introduced at sponge withdrawal. A) FSH (-■-) and LH levels (-▲-) normalized to the LH surge (n = 10). B) FSH levels in E-O (-■-, n = 5), NE-O (-▲-, n = 5), and NE-NO (--, n = 4) ewes. (BR = data pooled from the period before the introduction of the rams.) (Time with respect to the sponge withdrawal is equal to the time for ram's introduction.) E-O ewes displayed estrous behavior and ovulated after introduction of the rams, NE-O ewes ovulated but did not come into estrus, and NE-NO ewes neither ovulated nor came into estrus.

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