Thảo mộc trong nuôi trồng thủy sản

THONG TIN KHOA HOC VA CONG NGHE LAI CHAU<br /> <br /> <br /> <br /> Tnio MOC IKONG NUOI T D 6 N G TH^Y SAN<br /> 1. Cay xoan (Melia azedarach L):<br /> Trong than, vd, re cua cay xoan cd mdt<br /> Ancaloit cd vj dang la toosendamin ed tac<br /> dyng diet mdt sd ky sinh trung. Cach dung:<br /> Phdng tri benh ky sinh triing cho ca thudng<br /> dimg canh la xoan bdn Idt xudng ao vdi sd<br /> lupng 0,3 - 0,5 kg/m^ trudc khi tha ca vao<br /> uong 3 ngay.<br /> 2. Xuyen tam lien: Andrographus<br /> panicullata (Burmif.f):<br /> Tri benh viem rudt cho ca tram: Diing<br /> toan cay xuyen tam lien khd 1 kg hay 1,5 kg<br /> cay tuoi cho 50 kg ca an mdt lan trong ngay,<br /> an lien tyc 5-7 ngay. Loai ed nhd gay mpc la la tren mat dat,<br /> 3. Cay soi (Sapium sebiferum (L) than canh tim dd, la mpc ddi hinh bau due<br /> Roxb): hay thon dai (7mm x 4mm). Bam vao than<br /> Dimg la sdi tri benh thdi rira mang, benh cay chay mu nhya trang cd tac dyng uc che<br /> trang dau cua ca. Cach dimg: De phdng benh sy sinh san cua loai vi khuan gay benh ly.<br /> lay canh bd thanh bd nhd cho xudng ao. D I Cach dung: Cd siia ed phd khang khuan rpng<br /> tri benh can bdn xudng ao vdi ndng dp 6,0 lai cdn cd tac dyng ngung mau trung hoa dpc<br /> ppm (6,0 gram canh la sdi phoi khd/m^ td. Dung toan than cay de tri benh viem rudt,<br /> nudc). Thudng diing 1 kg canh la sdi khd benh thdi rira mang cua ca do vi khuan gay<br /> (hoac 4 kg tuoi) ngam vao 20 kg vdi sdng ra. Dung 50 gram cay ed siia khd hoac 200<br /> 2%) trong mpt dem, sau dd dun sdi 10 phut, gram cay dupe gia thanh bdt + 20 gram<br /> pH tren 12 rdi bdn xudng nude. mudi cho 10 kg trpng lupng ca an trong 1<br /> 4. Toi (Allium sativum L.): ngay, an lien tuc trong 3 ngay.<br /> Dung tdi tri benh viem rudt cua ca do vi 6. Sai dat (Weledia calendulacea (L).<br /> trung gay ra, mdi ngay dung 50 gram cu tdi Less):<br /> nghiln nat cho 10 kg khdi lupng ca an lien Mdt loai cd sdng dai, mpc lan bd, chd than<br /> tyc 6 ngay. Tdi phdng tri benh dudng rudt mpc lan tdi dau re mpc tdi dd, nod dat tdt ed the<br /> cua tdm nudi (benh phan trdng, an mdn vd cao tdi 0,5m. Than mau xanh ed long trang ciing<br /> kitin...), diing 10-15g tdi tuoi/kg thue an nhd, la gan nhu khdng cudng, mpc ddi hinh bau<br /> tdm/ngay, nghien nat hda vdi nudc vira du due thon dai, 2 diu nhpn, cym hoa hinh dau,<br /> trdn deu vdi thue an, mdi thang cho an mdt cudng cym hoa dai vupt cac nhanh la. Hoa mau<br /> dot 5 ngay lien tyc. vang tuoi. Cao tach chiet thao dupe sai dat deu<br /> cd tac dyng vdi ca 6 loai vi khuan (Vibrio<br /> 5. Co sfra la nho (Euphorbia thymifolia<br /> Huron): parahaemolytieus, V.harveyi, V.alginolytieus,<br /> <br /> <br /> 26<br />  THONG TIN KHOA HOC VA CONG NGHE LAI CHAU<br /> <br /> Aeromonas hydrophila, Edwardsiella tarda va vdi ngudi. rat ddc vdi ca. Nghien re day<br /> Hafnia alvei) gay benh d nude ngpt va Ip man. thude ca vdi nudc vdi lieu lupng Ippm lam<br /> Cach diing: phdng trj benh xuat huyet, hoai tir ca bi say, neu lieu cao han lam ea chet. Re<br /> ndi tang (benh ddm trang) do vi khuan cho ca day thude ca khdng ddc vdi giap xac. Cach<br /> nudi. Diing tuoi; 3,5-5,Okg gia lay nude trdn dung: Dimg re day thude ca de diet ca tap<br /> vdi thire an cho 100kg ca/ngay, trong 7 ngay trong khi tay dpn ao. Dap dap re day thude<br /> lien tyc. ca ngam cho ra chat nhya trang, de nude<br /> 7. Co nho noi (Eclipta alba Hassk): trong ao sau 15-20em, tat nude ngam re<br /> day thude ca, sau 5-10 phut ca tap ndi len<br /> Phdng tri benh xuat huyet, viem rudt d ca<br /> chet. Lieu lupng diing thudng 3-5kg<br /> nudi. Bdt cd nhp ndi phoi khd nghien va trdn<br /> re/1.000m nude.<br /> vdi thiic an cho ca an lien tyc trong 5 - 7<br /> ngay. 10. Bo hon (Sapindus mukorossii<br /> Gaertn):<br /> 8. Cau (Areca catechu L):<br /> Cdng dyng tuong ty nhu day thude ca,<br /> Dimg hat cau tay giun trdn (Spinitectus<br /> lieu diing 0,5-lkg hat/1.000m" nudc.<br /> clariasi) ky sinh trong rudt ca. Lieu dung; 4g<br /> hat cau/kg ca/ngay. An lien tyc trong 3 ngay. 11. Than mat (Milletia ichthyochtona<br /> Tri benh san day; Bothrioeephalus Drake):<br /> gowkongensis ky sinh trong rudt ca tram ed Trong hat than mat ed chiia 38-40%o dau,<br /> (Ctepharyngodon idellus). Lieu dimg: 1 g hat cd chira cac chat ddc ddi vdi ca nhu<br /> cau/2kg thiic an cho an lien tyc trong 7 ngay. Rotenon, Sapotoxin, chat gdm va albumin.<br /> 9. Day thuoc ca (Derris spp); Cach dimg; Cdng dyng tuong ty day thude<br /> ca, lilu dung 0,5-1,0kg hat/1.OOOm^.<br /> Re dung danh ba ca. Cac chat boat tinh<br /> chi ddc vdi ddng vat mau lanh, khdng dpc<br /> <br /> <br /> <br /> <br /> l||aD loiijl Qonh SIKII D M % ( » f a<br /> (Tiep theo trang 24)<br /> <br /> dieu kien thuan lai cho khach hang giao dich vdi NHCSXH huyen, tiet kiem<br /> ca ve thdi gian va tien chi phi di lai, gdp phan de ddng von nhanh chdng den<br /> tay ngudi dan. Ben canh dd, NHCSXH huyen Than Uyen cung thudng xuyen<br /> chii trong den cong tac dao tao, tap huan nang cao nghiep vu cho can bo cua<br /> phdng giao dich va can bo hoi, cac doan the, to tiep nhan va vay von, tuyen<br /> truyen giao due dao dire nghe nghiep de xay dung dpi ngii can bp dam bao<br /> nang luc cong tac, dap irng yeu cau nhiem vu duac giao, gdp phan quan trpng<br /> vao cong cupc xoa doi, giam ngheo, giai quyet viec lam, xay dung que huang<br /> ngay cang giau manh./.<br /> <br /> <br /> <br /> <br /> 27<br />