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过去十年间,以色列多尔鱼类养殖研究所鱼类孵化场的养殖工作者,为了生产雄性化鱼群,进行了罗非鱼的杂交试验。这几年每年生产罗非鱼超过1,300吨,其中1,000吨是从奥利亚Tilapia aurea鱼群中选取雄性罗非鱼养成的,其平均体重为300～350克,一年内选择的罗非鱼数量近300万尾。本文主要论述自然界罗非鱼交配问题,以及以色列鱼类孵化场在罗非鱼杂交研究方面所做的工作。对于生产雄性化罗非鱼稚鱼的现象,陈氏(Chen,1969)的论文很有说服力,然而陈氏在野外的实验结果,与其他科研人员一样,往往与孟德尔定律不一致。为了证实陈氏理论,该孵化场做了很多工作。
Over the past decade, aquaculture workers at the fish hatchery at the Israeli Dole Institute for Fish Farming conducted a tilapia cross test in order to produce male fish stocks. Tilapia are produced more than 1,300 tons annually in these years. Of these, 1,000 tons are derived from male tilapia from the Tillapia aurea school, with an average body weight of 300-350 grams. Within one year, tilapia The number of nearly 3 million. This article focuses on the mating of tilapia in nature and the work done by Israel’s fish hatcheries on tilapia crossbreeding. Chen’s (Chen, 1969) paper is compelling in the production of maleated tilapia juveniles, but Chen’s outfield results, like other researchers, are often inconsistent with Mendel’s law. To confirm Chen’s theory, the hatchery has done a lot of work.