Abstract:The current study was aimed to investigate the development of testis during prehatching periods to diverse the components of the testis in duck embryo from embryonic day 5 to 19 consequently; fifteen males' of mallard ducks embryos have been used. The results showed that development of testis has divided into two periods: the first one was the period of undifferentiated gonad (genital ridge) while the second period was the development into a testis which showed various stages. The undifferentiated stage has re… Show more
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