Triển vọng nuôi cá rô đầu vuông

O NGHIEN CLfu - TRAP D P I<br /> <br /> <br /> <br /> <br /> TRIEN VONG<br /> C<br /> a rd dau vudng mdi tich nudi ca rd dau vudng<br /> dUdc phat hien each<br /> day gan 2 nam.<br /> Theo tai lieu cua Chi cue<br /> NUOICA RO tang gap nhieu lan so vdi thdi<br /> ky ca dQdc phat hien. Hien<br /> nay, gia ca thQPng pham tai<br /> Quan ly chat IQpng Ndng<br /> Lam san va Thuy san tinh<br /> Hau Giang cho biet ca rd dau<br /> BAU VUONG thi trQdng ndng thdn la<br /> 60.000 d/kg (cao hdn gia ca<br /> Idc loai I, gan gap 2 lan gia<br /> vudng dQdc dng Nguyen Van 4- Bai, dnh: KS. PHL/dNG THANH<br /> ca dieu hdng).<br /> Khai, thudc ap 5, xa Vinh Ca rd dau vudng cd vu<br /> Thuan Tay, huyen Vj Thuy ddng/kg, thu Idi hdn 180 trieu<br /> diem Idn nhanh, he sd tieu<br /> phat hien dau tien nam 2008 ddng.<br /> thu thQc an thap, theo kinh<br /> vdi sd lupng khoang 70 eon Do thay day la loai ca la, nghiem cua cac hd nudi thi<br /> lan trong ao nudi ca rd ddng. lai cd nhieu Qu diem nen dng chi tdn 1,4 kg thQc an cho 1<br /> Khi thu hoach ao ca, dng Khai tiep tuc nhan gidng ban kg ea, trong khi dd nudi ca rd<br /> Khai thay cd mdt sd con ca rd eho nhQng ngQdi hang xdm ddng binh thQdng tdn den 2<br /> cd hinh dang la so vdi ca rd cung nudi. TQ dd, loai ca nay kg thQc an. Nhieu hd ndng<br /> thudng, vdi ddc dang to Idn trd nen ndi tieng va dupc dat dan lam giau nhd ban dUdc<br /> nen giQ lai nudi tiep. Lue nhd<br /> ten la ca rd dau vudng. Den ca gidng vdi gia cao. Ong<br /> hinh dang ca rd dau vudng<br /> thdi diem nay, ndng dan tinh Nguyen Hung Anh (ngu ap 5,<br /> gidng nhU ca rd ddng binh<br /> Hau Giang va cac tinh ian xa VTnh Thuan Tay, huyen Vi<br /> thudng nhung khi ca cd kfch<br /> can dd xd tim mua ca rd dau Thuy). Ong la mdt trong<br /> thude Idn, dau ea cd hinh hdi<br /> vudng de nudi, vi the ma dien nhQng ngQdi dau tien mua lai g^<br /> vudng, mdi tre, bung se, dudi<br /> dai,vay dudi day. Than ca dai<br /> cd hai cham den d gan dudi<br /> va mang ca. Dae diem khae<br /> giOa ca rd dau vudng va ca rd<br /> ddng binh thudng la ca dQc<br /> va ca cai cd tdc dp tang<br /> trQdng tQdng dQdng (ea rd<br /> ddng cai thQdng tang trQdng<br /> nhanh gap ddi ca rd ddng<br /> due). Ong Khai tuyen nhQng<br /> con Idn nhat trong dan de<br /> dem nhan gidng. Vu nudi dau<br /> tien, ca Idn rat nhanh, mdi<br /> hdn 3 thang dat trpng iQpng<br /> 100-120 g/con. Thu hoach<br /> het trong ao dQpc 11 tan ea<br /> rd thjt, dng Khai dem ban cho<br /> thQdng lai vdi gia 30.000<br /> Ca rd dau vudng tang trudng nhanh, cho hieu qua kinh tecao.<br /> <br /> <br /> ammmmssmm<br />  ONGHTFN CtfU - TRAP DPI<br /> *' ca gidng ca rd dau vudng cua<br /> <br /> <br /> E PHAT TRIEN<br /> dng Khii ve vd beo, nhan<br /> gidng de ban, cd vu e i gidng «<br /> dng thu ldi c i ty ddng , day la<br /> sd tien ma c i ddi lam ndng<br /> nghiep eung khdng cd dupe.<br /> Thee tinh toan, nudi ea<br /> rd dau vudng thUdng pham<br /> se mang lai ldi nhuan rat cao<br /> ® con ( 6 c6(<br /> do dae diem ea rat mau Idn.<br /> <br /> T<br /> inh Vinh Long cd dien tfch vUdn cay an qui<br /> Trung binh thdi gian nudi 4 dQng thQ nhi vung DBSCL, sau tinh Tien Giang<br /> thang dau cd the dat trpng »<br /> la dja phUdng cd dien tich vUdn CAQ rdng nhat<br /> lupng 6 eon/kg. Neu nudi keo<br /> so vdi cic dja phUdng d c i nUdc. Vinh Long cung ed<br /> dai 7 thing, trpng lupng ca<br /> cd the dat tQ 500-800 g/con. nhieu cay an q u i dae s i n ndi tieng, nhat la budi 5 roi da<br /> Nhieu cap c i gidng bd me dUdc chuyen gia QT ve CAQ dinh g i i vao loai nhat the<br /> nudi lau ngay cd the dat gidi.. Tinh Vinh Long dang cd xu the md rdng dien tfch<br /> trpng IUdng 900 g/ecn, vi the trdng CAQ cang can cd cich tiep can va tu duy chfnh<br /> ba eon cdn gpi e i rd dau x i c de phit trien nhanh va ben vQng. Cd mdt sd van de<br /> vudng la c i rd "khdng Id". thudng dUdc de cap va thuc hien nhieu nam ma chua cd<br /> Tuy kfch thudc va trpng ket q u i nhuy mudn:<br /> IUdng rat Idn nhung chat 1.- Dja phUdng nao cung nhieu lan len quy hoach, ke<br /> m<br /> lupng e i rd dau vudng cung hoach, vl la viec can thiet de cd hieu q u i s i n xuat kinh<br /> thdm ngdn nhu ea rd ddng . doanh. Tuy nhien, sau may thap ky den nay, nhQng<br /> Neu thdi gian nudi c i cang khiem khuyet trong kinh te vUdn chUa dUdc khae phuc;<br /> keo dai, kich thudc va trpng<br /> hieu q u i thiet thuc cua quy hoach, ke hoach chUa rd.<br /> lupng ca cang Idn chQ khdng<br /> Phii chang viec lam nay chua cd gde nhin tQ phfa<br /> giim can nhQ ca rd ddng ,<br /> chat IQdng thjt ea cung cang ngQdi s i n xuat de s i t thuc te ma cd quy hoach, ke hoach<br /> tang theo trpng lupng ea. chuan xic. GsTsKH Tran The Tuc, nguyen vien trudng<br /> Hien nay, Trung tam vien rau q u i VN, da phit bieu trong 1 cupc Hdi thio ve<br /> Khuyen ndng Hau Giang trii cay vao thing 8/ 2009 d Vien Cay an q u i mien Nam<br /> cung Chi cue Quan ly chat la viec quy hoach cdn theo y chi dao, chua s i t thUc te va<br /> lupng ndng, lam va thuy sin chua theo yeu cau cua ngUdi lim vUdn, chUa cd gde<br /> tinh dang nudi dudng theo nhim tQ phfa ndng dan trdng CAQ Cung nhQ vay vdi viec<br /> ddi, xie djnh rd ngudn gde xay dQng va thiet bj cho hang loat nha miy che bien trii<br /> loai ca nay. Vdi nhQng Qu cay chQa g i n vdi vung nguyen lieu nen lang phf nhieu.<br /> diem vUdt trdi ve thdi gian Chac chan la ngudi ndng dan d i u cd mudn "trdng- chat,<br /> nudi, tdc dp Idn nhanh, trpng chat - trdng" do sin xuat ra ma khdng bin dUdc sin<br /> IUdng Idn se la ldi the de xay<br /> pham, mac dau nha miy che bien lai thQa cdng suat.<br /> dQng thQdng hieu cho gidng<br /> 2.- Cd cau dau tu phit trien kinh te vudn chUa xuat<br /> ea nay. Day cung la mdt tfn<br /> hieu dang mQng cho ngQdi phit tQ thuc te s i n xuat, tQ ngQdi s i n xuat trii cay. Nhieu<br /> dan Hau Giang va vung nha miy che bien trii cay cdn du thQa cdng suat la mdt<br /> DBSCL VI se cd gidng ca tdt vf du. Neu nhu, rut bdt dau tu vao xay dQng va trang thiet<br /> de nudi. bi cho nha miy, de dau tU v i o nhieu hang muc can thiet<br /> <br /> mmmmamammoi^iG NGHE VINH LONG SO 4 - 2010<br />