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笔者在两口鱼塘,按面积投放同等数量的草鱼、鲢鱼、鲤鱼,在同样饲喂的情况下,试将鸽粪按量定期投放在一口池塘内。结果,投放鸽粪的池塘鱼肥体壮,增产20.5公斤。据分析,鸽粪中含有蛋白质25%以上,并含有铁、钙等多种微量元素,是鱼生长必不可少的一种精料。根据采收鸽粪记录,每只成年鸽每天排粪40～60克,一年可积粪20公斤左右。因此,鸽粪也是养鱼专业户不可忽视的饲料来源,其收集和饲喂的方法是: 一、在鸽窝积粪的底层,撒一层薄薄的米糠或麸皮,次日早上,将鸽粪与糠类一起
In the two fish ponds, the author put the same amount of grass carp, silver carp and carp in the same area and put the pigeon manure on a regular basis in the same pond. As a result, pigeon ponds were well-stocked and had a yield of 20.5 kg. According to the analysis, pigeon feces contains more than 25% of protein, and contains a variety of trace elements such as iron and calcium, which is essential for fish growth. According to the record of pigeon harvest, each adult pigeon feces 40-60 grams per day, a year can be about 20 kg of manure. Therefore, pigeon dung is also a non-negligible source of feed for fish farming professionals. The methods for collecting and feeding pigeon feces are as follows: First, spread a thin layer of rice bran or bran on the bottom of the litter for pigeon litter. The next morning, pigeons Dung and bran together