Ga thai loai - Vua ngheo dinh duong, lai hai suc khoe
Theo dung, dinh” TS, Theo Dan, de dam, Vi th
Khao sat tai mot so cho tren dia ban thanh pho Ha Noi nhu My Dinh, Dong Xa, Thanh Cong, co rat nhieu loai ga nhu Luong Phuong, Tam Hoang, ga choi, ga ta tha vuon, ga mia. Tuy nhien, rat kho co the phan biet giua cac loai ga nay, nhieu nguoi ban hang vi loi nhuan kinh doanh, ho tron lan cac loai ga voi nhau de danh lua nhung khach hang khong co kinh nghiem chon ga.
Thit ga thai gia thanh re hon so voi cac loai ga khac rat nhieu, dao dong tu 40.000 - 50.000d/kg, neu mo san la 70.000 - 80.000/1kg. So voi thit lon, thit bo thi gia cua thit ga re hon rat nhieu.
Co Dau (Mai Dich, Cau Giay) cho biet: “Toi luon canh giac voi ga sieu re, dac biet la ga thit san. Nha co con nho nen bien phap duy nhat la thuong mua ga cua nguoi quen nen cung an tam duoc phan nao”.
Chi Hoa (Hoang Hoa Tham) chia se: “Di ra cho hoi mua thit ga ta, nhin mieng thit ngon, minh cung chua co nhieu kinh nghiem, mua ve nau len nhieu mo, an thay nhat nheo. Luc nay moi biet minh mua phai thit ga thai”.
TS. Vu Ngoc Son, Giam doc trung tam thuc nghiem va bao tro vat nuoi
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“Quy trinh sinh truong cua ga de trung cong nghiep keo dai 18 thang, trong do giai doan nuoi hau bi tu 5 - 6 thang, con 12 thang la khai thac trung. Sau mot thoi gian khai thac trung, kha nang de trung thap xuong, chu chan nuoi can doi khong con lai se ban”, TS. Ngoc Son cho biet va nhan manh: “Vi thoi gian nuoi keo dai nen viec tiem vacxin va chat khang sinh nhu Ampixilin, Doci… la can thiet de dam bao cho viec phong tranh cac benh nhu CND, Ecolli, bai li cho ga”.
Theo dung nhu quy trinh, ga de se duoc tiem 9 loai vac-xin nhung bat dau khi ga de trung thi phai ngung tiem cac loai vac-xin tru hai loai vac-xin cum va vac-xin Newcastle. Thoi gian nuoi ga de dai, nen cac chat khang sinh tiem vao trong co the ga se lang dong lai trong thit. Tat ca cac vac-xin tiem cho ga deu duoi dang nhu dau (cham tan) de keo dai mien dich, tan dan thi luong thuoc dong lai trong thit it hon. Neu su dung vac-xin long tiem truc tiep thi cac chat se ngam truc tiep vao thit ga, neu nguoi tieu dung an phai thi cung se co nhung anh huong nhat dinh.
“Nhung chat khang sinh nay khi vao co the ga, mot phan se dong lai va mot phan tu dao thai ra ngoai, nen luong chat co trong ga cung khong qua lon neu co so chan nuoi tiem chung dung quy trinh va lieu luong”, TS. Son giai thich.
Hau het cac ho chan nuoi ga hien nay, kien thuc ve quy trinh tiem vac-xin va khang sinh sao cho dung lieu, du luong con han che. Nen viec ga thai hien nay co nhieu nguon tran lan tren thi truong, khong kiem soat het duoc trong thit ga do co nhieu chat khang sinh hay khong, do cung la van de can co su can thiep cua cac co quan kiem dinh vat nuoi, thuc pham.