Effect of the extender supplement Equex-STM on cryopreserved semen in the Assaf sheep. - Assaf sperm
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Abstract. Melatonin is the neuroendocrine basis of photoperiodic regulation of sperm production. In short-day breeders, such as sheep, longer. Objective: To compare the effect of a short (4 days) or a long (14 days) abstinence period on sperm retrieval by extended sperm preparation in patients with.