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日本碾米工业会为了解碾米厂鸟害现状和防鸟对策实际,于1987年6月至1988年4月对全国346个米厂进行了调查。调查厂中,受害厂314个,占调查数的91％,未受害厂32个,占9％。调查厂中,采取过对策的厂298个,占86％,未采取过对策的厂48个,占14％。调查表明,为害米厂的鸟类主要是家鸽和麻雀。为害情况最大是鸟粪,它不仅污染粮食,污损设备,还能感染疾病。食害次之,作巢和羽毛的为害较少。调查结果认为,作为防鸟对策的最佳方法是使鸟类到米厂无落脚之地,但眼下还无有效的对策,就是说,威吓和忌避的对策还有不足之处,它缺乏持效性。同时应该认识这样一个事实,鸟类飞来米厂目的在于觅食。采取防鸟对策后,现在
The Japanese Milling Industry Society conducted a survey of 346 rice mills across the country from June 1987 to April 1988 in order to understand the status quo of birds disease and anti-bird countermeasures in the rice mills. Among the investigation plants, 314 were affected factories, accounting for 91% of the total number of investigations and 32 were not affected, accounting for 9%. Among the surveyed plants, 298 plants had taken countermeasures, accounting for 86%, and 48 plants had not taken any measures, accounting for 14%. According to the survey, the birds that spoil the rice factory are mainly domestic pigeons and sparrows. Damage is the largest bird droppings, it not only pollutes the food, deface the equipment, but also can infect the disease. Less food damage, fewer damage to the nest and feathers. According to the findings, the best way to defend birds is to make birds go to the rice factory. However, there are no effective measures for the time being. In other words, there are still some inadequacies in measures of intimidation and avoidance, which lacks persistence Sex. At the same time, we should recognize the fact that the purpose of flying birds is to look for food. After taking anti-bird countermeasures, now