Cai Trang hamlet, Ham Rong commune is famous for the crab nursery, breeding. For years, the model has brought stable income for people here. At the same time, the crabs of Cai Trang have been confirmed by selling to many provinces.

According to many farmers, this model is effective and promising, gathering idle labors, taking advantage of vacant land around the house, which has no economic value to increase income.
As a pioneer in implementing the model, Mr. Doan Van Tuyen, head of the cooperative group, breeding crabs of Cai Trang said that (hatched larvae) after 5 to 15 days of nursing can be sold. Particularly, his family has 70 crab vats, profited between 15-20 million VND / month.