摘 要: | 番鸭和北京鸭之间自然交配的受精率低(Kalina, 1958; Watanabe, 1959; Tan, 1971; Cassagne等,1973; Steklen'ov, Kromin和Gavrish,1976).人工授精则是一个很好的补救办法.人工按摩法(Onishi和Kato,1955;Watanabe, 1959, 1961; Kamar, 1962)和电刺激采精(Watanabe, 1957,1961)曾用在公番鸭上,效果都不太理想.Nishiyama, Nakashima和Fukihara(1976)用假阴道采到4只北
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