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31/7/2003 - quang dat - bentre - co the thay the thach cao bang xi mang trang khong.tom bi mem vo ma thit duc. xin viet linh cho biet nguyen nhan va cach phong tri.

1/ Khong the thay the thach cao bang xi mang trang vi 2 loai khac nhau ve 1 so thanh phan tham gia.

2/ Tom bi mem vo ma thit van dac: Do 1 trong so cac nguyen nhan sau:

- Do thieu dinh duong, khoang chat Ca/P (thuc an chat luong khong dat hoac do cho an thieu)

- Do do man qua thap <3%

- Mua keo dai, Do kiem trong ao thap Vo tom co khi mem nhieu tuan lien.

Cach phong va chua tri:

- Cai thien thuc an cho tom

- Tron them vao thuc an cac chat da vitamine, vitamine C vi du: cua Bayer: stayC, Customix 2110 ; Cua hang khac: Beta-min, C-mix, Jumbo...

- Dung thuoc bo, tang cuong suc: Catosal 10% cua Bayer.

- Nang do kiem toi thieu 100ppm.

- Ngoai ra co the nang do man bang nuoc ot, muoi hat o ruong muoi trong mot thoi gian nhat dinh cung rat tot - pha muoi vo ao tru, sau do cham them sang ao nuoi, nang tu tu de tranh tom bi soc.