Monitoring and Prevening the Bee Nosema Disease in Taiwan

• Main Authors: Chung, Wei-Peng, 張惠斌
• Other Authors: Chen, Yue-Wen
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/71708796547945851450

碩士 === 國立宜蘭大學 === 動物科技學系碩士班 === 98 === Nosema disease is one of familiar diseases of honeybee and causing honeybee weakness and damage. There are two species of nosema pathogens in honeybee, Nosema apis and N. ceranae. Since 2004 Huang et al. had detected N. ceranae in Apis mellifera, many reports showed that N. ceranae extensively parasitized on A. mellifera in the world. This research is to survey and confirm that N. ceranae is a major nosema pathogen in Taiwan honeybee population; to monitor the nosema spores continuously in each month and the variance in seasons; to reveal the effect of temperature on nosema infectant and to select the drug for preventing nosema infection. The results showed that all seven apiaries were parasitized by N. ceranae. Nosema went to the highest peak in winter and down to the lowest peak in summer. The average of nosema spores reached to 432.1±245.9×104 spores/bee in December and 32.8±28.0×104 spore/bee in September. It was found that the highest spore counts were I-lan and Taipei among the examing seven apiaries. Hsinchu and Hualien were the lowest spore densty. The honey bee larvae were artificially infected with spores and incubated at 30℃ and 34℃ respectively, the results showed that the spores of infected larvae at 30℃ were higher than that at 34℃. For preventing nosema disease, fumagillin was found to suppress nosema spores effectively and the amount of spores decreased signally after treating. Probiotic bacteria and propolis extract hadn’t effected on nosema disease.