Eating Habits and Behaviour of Aigamo Ducks in Paddy Field.
Eating Habits and Behaviour of Aigamo Ducks in Paddy Field.
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稻田爱贺鸭的饮食习惯和行为。
DOI：
10.3719/weed.44.1
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Y. Tsuboki
中科院分区：
文献类型：
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作者：
Hiroomi Asano;K. Isobe;Y. Tsuboki
在鸭养殖系统中，除草效果取决于鸭的活动范围。研究了该鸭的饮食习性及与除草有关的行为，并对其除草效果进行了评价。一项对鸭子食道的调查显示，它们不仅吃杂草，还吃昆虫。这意味着放生鸭子不仅能达到除草的效果，还能消灭害虫。鸭鸭在清晨和黄昏都很活跃，在稻田里自由地活动。对一只鸭子的后续调查发现，从凌晨3点到晚上8点，鸭子的行走距离为3.8公里。（17小时）在20英里（56m×37m）稻田。6月底（水稻插秧后3-4周）至8月初（抽穗日），鸭子的散养期通常在40-50天之间。因此，在它们活动时间覆盖的面积足以控制杂草。在鸭的养殖过程中，疏氏假单叶蝉、水喉假单叶蝉和juncoides的除草效果很好，与使用除草剂的除草效果几乎相同。从鸭子被放生到八月初，杂草得到了控制。
In the Aigamo duck farming system, the effect of weeding depends on the sphere of action of Aigamo ducks. The eating habits of this duck and actions related to their weeding were researched, and the effect of weeding using Aigamo ducks evaluated. A survey of the gullets of the ducks showed a tendency to eat insects as well as weeds. This meant that letting the ducks loose would achieve not only the effect of weeding, but also the extermination of harmful insects. Aigamo ducks were vigorously active early in the morning and at dusk, and moved around freely in the paddy fields. A follow-up survey on one individual duck found the distance covered was 3.8km during the period from 3:00a.m.-20:00p.m. (17 hours) in a 20 a (56m×37m) paddy field. The loose period of ducks were usually settled between 40-50 days, from the end of June (3-4 weeks after transplanting of rice) to the beginning of August (heading date). Thus, the area covered during their active hours was adequate for weed control. P. thunbergii, P. hydropiper and S. juncoides remained in following the Aigamo ducks cultivation, but the weeding they achieved was great and was almost the same as that achieved using an herbicide. Weeds were controlled from a week after the ducks were let loose to the beginning of August.