摘要: The normal equine breeding season begins in the spring and extends through mid-summer. It is characterized by marked increases sperm output seminal volume, as well behavioural changes manifested decreased reaction time number of mounts per ejaculation (Pickett & Voss, 1972). production androgenic steroids testis has been investigated both vivo (Lindner, 1961) vitro (Savard Goldzieher, 1960; Bedrak Samuels, 1969; Oh Tamaoki, 1970) but testosterone level peripheral plasma not reported seasonal influences upon testicular function have received little attention. object this study was to establish influence on concentration stallion. Two ejaculates were collected from five mature Quarter Horse stallions each Tuesday. Blood withdrawn jugular vein animal at approxi¬ mately 10.00 hours Wednesday closest middle month
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reproduction-online.org参考文章(6)
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