摘要
１９９４～１９９７年采用系统调查法，对滇中占农田混合种群４３％的褐家鼠的繁殖规律进行研究，结果表明：褐家鼠的生殖随季节变化呈周期性波动。春季、秋季为怀孕生殖高峰期，夏季、冬季为低谷期；年平均怀孕率３７．３％，平均胎仔数９．７０只，一只雌体每年平均繁殖６０只仔鼠加入种群；３月和９月为药剂防治的最佳时期。
A systematic investigation on the breeding pattern of the 43% species composition of rattus norvegicus in the farmland in central yunnan from 1994 to 1997 shows:The breeding of Rattus norvegicus fluctuates as the season changes, spring and autumn are the high tide for breeding while summer and winter are the low tide. The annual average pregnant rate is 37.3% and 9.70 rats at average litter. One female Rattus norvegicus can give births to 60 rats per year. March and september are the best months for chemical control.
出处
《植保技术与推广》
1998年第5期24-26,共3页
Plant Protection Technology and Extension
关键词
褐家鼠
繁殖规律
种群
农田
attus norvegicus breeding pattern species composition
