利用菜鴨防治茭白筍田福壽螺效益之研究

Efficiency of Control of the Golden Apple Snail by Brown Tsaiya Duck in Zizaniz latifolia Cultivation

羅英妃(Ing-Fei Lo) ； 魏芳明(Fang-Ming Wei) ； 廖君達(Chun-Da Liao) ； 郭珮琪(Pei-Chi Kuo)

《植物種苗》 9卷1期 (2007/03) Pp. 9-18

https://doi.org/10.30077/SN.200703.0002

摘要

菜鴨會取食福壽螺，可放養防治福壽螺。1個月鴨齡及14個月鴨齡之菜鴨，每日可取食49個及142個1.0-1.25公分殼高之福壽螺，福壽螺最大殼高分別為1.25公分及2.258公分以上之無法取食。茭白筍田放養菜鴨30天比對照組減少卵塊數目約21%，90天則達11%。分蘗數比對照組增加46%，產量亦增加38.5%，筍身白皙品質佳。放養菜鴨比施用化學藥劑(6% metaldehyde)處理效果良好。

關鍵字

茭白筍 ； 菜鴨 ； 福壽螺

並列摘要

Due to the ability to eat golden apple snail (Pomacea canaliculata), which damaged aquatic crops, the brown duck can be used to control the population of golden apple snail in the Zizaniz latifolia field. In this study we examined the prey efficiency of brown duck serve as a biological control for the golden apple snail and the profit for the Zizaniz latifolia yields. According to our observation, 1-month old and 14-month old brown duck could eat 49 and 142 golden apple snails, at shell heights from 1.0 to 1.25 cm, respectively, per day. But at the same time, they could not eat golden apple snails bigger than 1.25 cm and 2.25 cm in shell heights any more, respectively. After 30 days and 90 days of brown duck releasing in the field, the number of egg masses of the golden apple snail were decreased to 21 and 11%, as compared to the control, respectively. The amount of buds emergency in the brown duck released treatment were 46% more than that of the control treatment, as well as 38.5% higher in the yields, and a better quality in the harvested materials. These results also suggested that brown duck was more effective in controlling the golden apple snail than chemicals in the Zizaniz latifolia field.

並列關鍵字

Zizaniz latifolia Turcz ； Brown Tsaiya Duck ； Pomacea canaliculata