Tap chi Khoa hoc va Cong nghe Nong nghigp Viet Nam - So 05(126)/2021 HIEU QUA KY TH U fT VA TAI CHINH CUA MO HINH NUOI TOM THE CHAN TRANG (L ito p en a u es v a n n a m ie) THAM CANH TRONG AO LOT BAT DONG BANG SONG CUtJ LONG Huynh Van Hien1, Dang Thi Phifong1va Nguyen Thi Kim Quyen1 TOM TAT Nghien cdu nham mo ta hien trang ve cac chi tieu ky thuat, tai chinh cua mo hinh nuoi t6 m the chan trang ao lot bat cf vimg Dong bang song Cdu Long (DBSCL) Nghien cdu diicfc thifc hien nam 2020 thong qua phong van trite tiep 178 ho nuoi tom the chan trang ao lot bat tai cac tinh nu6 i tom diem d DBSCL PhdOng phap thong ke mo ta dupe ap dung de mo ta hien trang ve khia canh ky thuat va tai chinh cua mo hinh nuoi Ket qua nghien ciiu cho thay dien tich nuoi tom ao lot bat tit 0,9 - 3,4 ha/ho vdi mat trung binh 157,1 con/m2, sau thdi gian nuoi tit 90 - 100 ngay/vu, nang suit dat 15,9 tan/ha/vu Tong chi phi nuoi tom trung binh 1,3 ty dong/ ha/vu, titong ling vefi gia la 81,1 nghin dong/kg Gia ban tom trung binh 116,7 nghin dong/kg, lpi nhuan dat 35,6 nghin dong/kg va ty suat loi nhuan la 44% Tit khoa: Tom the chan trang, mo hinh, ao lot bat, hieu qua ky thuat va tai chinh I DAT VAN DE T6 m the chan trang (TCT) la doi tiipng nuoi chu life cua Viet Nam noi chung va Dong bang song Cdu Long (DBSCL) n i rieng Day la doi tdpng co sit gia tang manh ve san 1ifpng va gia tri xuat khau, tit 120 nghin tan veti gia tri xuat khau 115 trieu USD nam 2010 len den 632 nghin tan vdi gia tri xuat khau 2,36 ty USD nam 2020 (VASEP, 2021) Trong do, DBSCL dong gop khoang 93% ve dien tich nuoi tom va 83% ve san litong san xuat toan nganh tom Viet Nam (Quyen et al, 2020) Theo bao cao cita VASEP (2019a), nhom quoc gia va vitng lanh tho la thi tritdng nhap khau chinh cua mat hang tom Viet Nam bao gom: Chau Au, My, Nhat Ban, Trung Quoc va Han Quoc, chiem 81 - 85% tong gia tri xuat khau cua nganh hang tom Viet Nam Dieu cho thay nganh hang tom cita Viet Nam co biicfc phat trien manh va dong gop 16n cho nen kinh te thuy san Sit phat trien manh me co sit dong gop Idn tit mo hinh nuoi tom TCT tham canh ao lot bat vdfi mat tha nuoi va nang suat cao thdi gian gan day (Pham Nhat Tritdng, 2019) Hien nhu cau ve san pham tom tren the giefi tiep tuc tang cao va nganh tom ditctc du bao se tiep tuc tang trung binh - 10 %/nam de dap ting nhu cau tieu dimg cua khach hang tren the giefi va tieu thu nitdc (VASEP, 2019a) Dap ling nhu cau do, cac mo hinh nuoi tom ap dung cong nghe cao nhit mo hinh nuoi tom sieu tham canh, mo hinh nuoi t m ao lot bat diioc ap dung Theo Vo Nam Son va cong tac vien (2019) mo hinh nuoi tom TCT ao lot bat co the dat 47 tan/ha/vu Day dope xem la tien bo khoa hoc ky thuat mdi giup gia tang nang suat, han che dich benh va han che sd dung khang sinh hoa 1Khoa Thuy san, TrUdng Dai hoc Can Tho chat mo hinh nuoi tom (VASEP, 2019b) Tuy nhien, hien so ho nudi tom ap dung mo hinh han che va co sil khac biet gida cac tinh tai DBSCL Hien tai chila co nhieu nghien ciiu va phan tich chuyen sau ve mo hinh do nghien cdu da diipc thde hien nham phan tich va danh gia hieu qua ky thuat - tai chinh cua mo hinh nuoi tom TCT tham canh ao lot bat d DBSCL Tit khuyen nghi mot so giai giap phu hop de nang cao hieu qua san xuat va cai thien ddi song ngiicfi dan vimg II DOI TLfONG VA PHUCfNG PHAP NGHIEN CtfU 2.1 Ddi tiipng nghien cdu Doi tiipng cua nghien ciiu cac ho nuoi tom TCT tham canh ao lot bat cac dia phifong nuoi tom diem cua viing DBSCL 2.2 Phifong phap th u thap va xd ly so lieu - Phifong phap thu thap so lieu thd cap: So lieu thd cap difpc thu thap td bao cao cua Hiep hoi che bien va xuat khau thuy san Viet Nam (VASEP) va cac bai bao khoa hoc da xuat ban tren cac tap chi khoa hoc va ngoai nifdc - Phifong phap thu thap so lieu so cap: So heu so cap difpc thu thap bang phifong phap phong van cac hd nuoi tom TCT ao lot bat thong qua bang phong van cau true soan san va ap dung phifong phap chon ho ngau nhien phan tang tai cac dia ban nghien cdu Cac bien chinh dope sd dung nghien cdu bao gom: Quy mo dien tich nudi, mat tha giong, nang suat, he sd tieu ton thiic an (FCR), cac khoan chi phi, gia ban, doanh thu va Ipi nhuan Tong quan sat la 178 ho difpc phan bo d cac Tap chi Khoa hoc va Cong nghe Nong nghiep Viet Nam - So 05(126)/202! tinh DBSCL bao gom Soc Trang (48 ho), Bac Lieu (40 ho), Ca Mau (45 ho) va Kien Giang (45 ho) - Cac phddng phap phan tich la (1) phiiOng phap thong ke mo ta (tinh toan gia tri trung binh, lech chuan, tan suat, ti le phan tram) mo ta hien trang ve cac chi tieu ky thuat, tai chinh; (2) Phddng phap so sanh dddc sd dung de so sanh gia tri trung binh cua cac bien dinh liicfng gida cac dia ban khao sat va sd dung phddng phap phan tich ANOVA mot nhan to, vdi phep thd LSD vdi tin cay 95%; (3) thong ke nhieu chon Ida dddc ap dung de phan tich cac thuan ldi va kho khan cua m hinh nuoi tom TCT ao lot bat DBSCL Phan mem SPSS 20.0 dddc sd dung de phan tich s6 lieu 2.3 Thcti gian va dia diem nghien cdu Nghien cdu dddc thdc hien td thang nam 2020 den thang 12 nam 2020 tai cac tinh nuoi tom TCT ao lot bat diem d DBSCL nhd: Soc Trang, Bac Lieu, Ca Mau va Kien Giang III KET QUA VA THAO LUAN 3.1 Khia canh ky thu at cua m o hin h nuoi tom the chan trang ao lot bat Dien tich nuoi trung binh cua cac ho nuoi tom TCT trung binh 1,8 ha/ho va moi ho chia td den ao Trong do, Kien Giang la tinh co dien tich nuoi Idn nhat (3,4 ha/ho) va Bac Lieu la thap nhat (0,9 ha/ho) cac tinh dieu tra (p 0,05) gida cac tinh (Bang 1) So vdi nam trddc, ket qua nghien cdu cd nang suat tom thu hoach cao gap hai lan so vdi nang suat tom TCT nuoi quy mo nong ho (Do Minh Vanh va ctv., 2016) Nang suat tom TCT ao lot bat tddng dddng vdi nang suat tom TCT tham canh quy mo cong ty la 13,9 tan/ha/vu va mo hinh tom TCT tham canh tai Ninh Thuan la 12,0 tan/ha/vu (Do Minh Vanh va ctv., 2016; Le Kim Long, 2017) Tuy nhien, nang suat mo hinh nuoi tom TCT ao lot bat td ket qua nghien cdu cua Vo Nam Sdn va cpng tac vien (2019) la 47 tan/ha/vu, nguyen nhan la mat tha nuoi cao (303 con/m2) nen co sd khac biet ve nang suat tom thu hoach Bang Khia canh ky thuat cua mo hinh nuoi tom TCT ao lot bat d DBSCL Kien Giang (n4= 45) 3,4C± 1,8 Tong chung (n = 178) Soc Trang (n, = 48) Bac Lieu K =40) CaMau (n,= 45) Dien tich nuoi (ha/ho) l,3b ± 0,9 0,9a ± 0,7 l,5b ± 0,8 So ao nuoi (ao/ho) 3,3a ± 2,6 4,0b + 0,5 2,4a ± 0,5 ,lc ± 5,8 4,5 ± 2,6 Dien tich mot ao (ha/ao) 0,4a ± 0,4 ,2 a ± 0,2 ,6 b ± 0,1 0,5b ± 0,4 0,4 ± 0,3 Do sau mdc nddc (m) l, a ± 0,2 l, 12 a ± 0,1 l,2a ± 0,3 l,3a ± 0,2 1,2 ± 0,3 162,4a ± 49,8 138,3a ± 13,6 177,8b ± 35,2 149,7a ± 50,7 157,1 ± 37,7 He so FCR l,3a ± 0,1 l, a ± 0,2 l,3a ± 0,1 l, a ± 0,1 1,3 + 0,1 Thdi gian nuoi (thang/vu) 2,9a ± 0,4 3,3a ± 0,2 3,2a ± 0,8 2,9a ± 0,4 3,1 ± 0,7 So vu nuoi (vu/nam) 2,6a ± 0,5 3,la ± 0,1 3,2a ± 0,6 2,8a ± 0,7 2,9 ± 0,5 Cd thu hoach (con/kg) 52,5a ± 23,2 64,4a ± 13,3 69,2b + 12,1 60,3a ± 20,3 61,6 ± 18,0 Nang suat (tan/ha/vu) 14,7a ± 5,0 17,3a ± 2,4 17,5a ± 4,5 14,2a ± 9,7 15,9 + 5,5 Noi dung Mat tha giong (PLs/m2) 1,8 ± 1,1 Gfa dtu: n: La so ho khao sat dUdc sit dung nghien citu; Ket qua the hien Trung b'mh±D6 lech chuan; Nhitng tri cung mot dong co ky tU theo sau giong thi khong khdc biet d mite y nghia thong ke 5%, sit dung kiem dark AVOVA mot nhdn to jm 1M Tap chi Khoa hoc va Cong nghe Nong nghiep Viet Nam - So 05(126)/2021 3.2 Khia canh tai chfnh cua mo hinh nuoi tom the chan trang ao lot bat van chiem ty le cao nhat tha vcfi mat cao hdn va FCR cung cao hdn (Bang 1) Ke den la chi phi thuoc va tom giong chiem td den 11% (Bang 2) Chi phi tom giong Soc Trang chiem ty le cao nhat phan lcfn tom giong ddcfc nhap td cac trai giong tinh Bac Lieu Do mo hinh nuoi tom ao lot bat co quy mo dien tich ldn hdn so vcfi nuoi tham canh thong thdcfng nen cac ho nuoi co sd dung them lao dong thue mvldn va mot so ho co sd dung von vay, dan den cd cau chi phi danh cho lao dong thue milcfn va chi phi lay vay chiem td den 3,1% tong chi phi, cao hdn so vcfi nhdng nghien cdu trade day ve mo hinh nuoi tham canh tom TCT ao dat Mo hinh nuoi tom TCT lot bat yeu cau chi phi dau td cho xay ddng cong trinh nuoi va trang thiet bi cao, do chi phi co dinh chiem den 13,8% tong chi phi, chu yeu la chi phi khau hao dao ao, khau hao may moc thiet bi va khau hao bat lot Ngddi nuoi tom thddng hay sd dung bat PVC (poly vinyl chloride) co tuoi tho 10 nam vdi gia mua ban dau cao nen chi phi khau hao bat lot cao (Ranjan & Boyd, 2018) Tong chi phi bien doi cua mo hinh chiem tii 84 den 90% tong chi phi, do, chi phi thdc an chiem ty le cao nhat, dao dong tii 51 den 58% gida cac tinh Cd cau chi phi thdc an d Ca Mau Bang Co cau chi phi (%) nuoi tom TCT ao lot bat d DBSCL Soc Trang (n, = 48) Bac Lien K =40) Ca Man (n,= 45) Kien Giang (n4=45) Tongchung (n = 178) Chi phi bien doi 87,6 84,6 86,8 85,9 86a Cai tao ao 3,9 2,0 2,6 2,4 Tom giong 11,4 9,7 10,4 10,3 10,5 Thuoc/hoa chat 8,8 8,0 9,1 11,2 9a Thdc an vien 52,6 51,8 58,0 52,8 53,8 Nhien lieu 6,9 9,2 5,9 6,7 ia Lao dong thue mddn 2,2 3,1 1,3 1,4 2,0 Lai vay von ldu dong 1,8 0,8 1,1 0,9 u 12,4 15,4 13,2 14,1 13,8 Xay ddng c6 ng trinh 6,9 7,8 5,9 7,5 7,0 May moc, thiet bi va bat lot 5,1 6,7 5,4 5,4 5,7 Nha kho va vat lieu khac 0,4 0,9 1,9 1,2 1,1 Noi dung Chi pht c6 dinh khdu hao Ghi chu: n: La so ho khao sat dUOc sii dung nghien cdu Tong chi phi san xuat cua mo hinh nuoi tom TCT tai cac tinh nghien cdu trung binh la 1,29 ty dong/ha/vu (Bang 3), cao hdn tii den lan so vdi mo hinh nuoi tham canh ao dat nhiing thap hdn lan so vdi nghien cdu cua Vo Nam Sdn va cong tac vien (2019) vdi cung mo hinh luc mdi xuat hien Tom nuoi ao lot bat dat gia trung binh 81,1 ngan dong/kg, tinh Kien Giang co gia nuoi cao nhat vcfi 87,9 ngan dong/kg, khac biet co y nghia thong ke (p < 0,05) Gia ban tom thddng pham dao dong thuoc vao thcfi diem thu hoach va theo dia phiidng, va kich cd tom thu diidc (Nguyen Thi Kim Quyen va ctv., 2017) Ldi nhuan tom nuoi ao lot bat dat trung binh la 560,5 trieu dong/ha/vu, do, tinh Ca Mau va Soc Trang dat lcfi nhuan cao nhat co y nghia thong ke (p < 0,05) so vdi va tinh Bac Lieu va Kien Giang, anh hddng cua sd chenh lech gia ban vao kich cd va thdi diem ban (Bang 3) Ldi nhuan tren moi kg tom la 36 ngan dong va ty suat ldi nhuan dat 44%, Soc Trang co ty suat ldi nhuan cao nhat (p < 0,05) Nhin chung, mo hinh nuoi tom TCT ao lot bat dat hieu qua tai chinh cao hem nhieu so vdi mo hinh nuoi ao dat (Nguyen Thanh Long va Huynh Van Hien, 2015; Quyen et aL, 2020) nhdng thap hdn so vdi giai doan dau luc mo hinh mdi phat trien (Vo Nam Sdn va cfv., 2019) d o £ c o nhdng thay doi de phu hcfp dieu kien san xn it cAa ngddi dan Tap chi Khoa hoc va Cong nghe Ndng nghiep Viet Nam - So 05(126)/2021 Bang Cac chi tieu tai chinh cua mo hinh nuoi tom TCT ao lot bat d DBSCL Soc Trang (n, = 48) Noi dung Bac Lieu (n2= 40) CaMau (n,= 45) Kien Giang K =45) Tong chung (n = 178) Tong chi phi 1.140,7a± 406,6 1.386,7a ± 103,1 1.375,2a ± 253,8 1.248,5a± 511,7 1.287,8 ± 321,8 (Trieu dong/ha/vu) Gia 77,6 a ± 14,4 80,2a + 18,7 81,1 ± 12,8 78,6a ± 13,7 87,9b± 11,5 (Nghin dong/kg) Gia ban 120 ,0 b ± 28,1 104,0a ± 12,2 116,17a± 19,1 125,9b ± 15,8 116,7 ± 17,4 (Nghin dong/kg) Doanhthu , , i 764 0a + 323 1.799,2a ± 382,2 2.042,3b ± 412,0 1.787,8a± 389,4 1.848,3 ±361,5 (Trieu dong/ha/vu) ' ’ Loi nhuan 623,3b ± 288,4 412,5a ± 312,4 539,3a + 374,8 560,5 + 290,6 667,lb ± 221,2 (Trieu dong/ha/vu) Loi nhuan 42,4C± 12,4 23,8a ± 9,8 38,lb ± 14,5 38,0b ± 8,7 35,6 ± 10,6 (Nghin dong/kg) Ti suat loi nhuan (%) 54,6 C 29,7a 48,5b 43,2b 44,0 Ghi chu: n: La so ho khao sat diiOc sit dung nghien citu; Ket qua the hien Trung b\nh±Do lech chuan; Nhitng gia tri cung mot ddng co ky tit theo sau giong thi khdng khac biet d mite y nghia thong ke 5%, sit dung kiem dinh AN OVA mdt nhan to Ket qua phan tich thong ke nhieu chon lUa nhiing thuan lefi va kho khan cua mo hinh nuoi tom TCT ao lot bat diloc the hien tai Hinh Nong dan duoc ho trd ve ky thuat, tan dung dien tich sin co va mo hinh dat dUcfc loti nhuan cao la ba thuan leri bien nhat diidc liet ke bdi 73,4 den 83,1% so ho khao sa t Nuoi tom ao lot bat doi hoi ky thuat cao nhat la khau thiet ke cong trinh va trai bat ao (Ranjan & Boyd, 2018) Tuy nhien, ngitdi nuoi diicfc ho tro ky thuat nuoi tit cac co quan chdc nang nhat la Chi cue thuy san va khuyen nong tinh Tuy mo hinh nuoi yeu cau dien tich tvtdng doi lctn nhitng ngiteti dan thitdng co dat san co tit nuoi ao dat triidc day Hon the, day la mo hinh dvtOc danh gia la mang lai loi nhuan rat cao cung vefi thdi gian nuoi ngan (Ranjan & Boys, 2018; Vo Nam Son va ctv., 2019) Ngifcfi dan co kinh nghiem nuoi lau nam (6 % so ho khao sat) va chat litOng giong cang ditoc cai thien (49,3% so ho khao sat) cung la nhiing thuan loi de phat trien mo hinh (Hinh la) Ben canh do, mo hinh nuoi cung cd mot so kho khan nhit gia ca dau va dau vao khong on dinh, dich benh, thdi tiet that thitctng va moi tntdng node cang nhiem Nhin chung, day la nhiing kho khan cua nganh nuoi tom noi chung da ditoc neu nhiing nghien citu tritdc day (Huynh Van Hien va ctv., 2020; Quyen et a l, 2020; Vo Nam Son va ctv., 2019; Ranjan 8c Boys, 2018) Dieu cho thay rang, mo hinh ton rat nhieu chi phi nhat la chi phi lot bat ao nuoi Ben canh do, cac nghien cdu cung chi mo hinh dvtOc xem la mo hinh ting dung cong nghe vdi mtic tham canh hoa cao Tuy nhien, hien tai ngiidi nuoi da co nhieu ltia chon va giai phap de tiet kiem chi phi cung vdi kinh nghiem va cac ho trO ve mat khoa hoc ky thuat nhan ditoc Dieu chiing to mo hinh kha phu hop va co trien vong phat trien titong lai % ■mafia tot Idak agkiem cao sanco trove kv tboat ■Ulm tb w ag Hinh Nhiing thuan loi (a) va kho khan (b) cua mo hinh nuoi tom TCT ao lot bat d DBSCL (thong ke nhieu chon lUa) 112 dink Tap chiKhoa hoc va Cdng nghe Nong nghiep Viet Nam -So 05(126)/2021 IV KET LUAN VA DE NGHI 4.1 K etluan Mo hinh nuoi tom TCT ao lot bat co quy mo dien tich trung binh la 1,8 ha/ho Trong do, Kien Giang la dia philOng co quy mo dien tich nuoi ldn nhat cac dia ban khao sat (3,4 ha/h ) Mat tha giong tom TCT ao lot bat trung binh 157,1 con/m2, he so tieu ton thiic an (FCR) la 1,3 va nang suat dat 15,9 tan/ha/vu va nang suat khac biet khong co y nghia thong ke gifla cac tinh Tong chi phi nuoi tom TCT ao lot bat trung binh 1.287,8 trieu dong/ha/vu tiidng flng vdi gia nuoi kg tom thiidng pham la 81,1 nghin dong/kg Ldi nhuan thu diiOc tit mo hinh nuoi tom TCT ao lot bat la 560,5 trieu dong/ha/vu va ty suat ldi nhuan 44%, Soc Trang co ty suat ldi nhuan cao nhat (54,6%) Kho khan nhat hien cua mo hinh nuoi tom TCT ao lot bat la gia ban khong on dinh (75,3%) 4.2 De nghi Can sd ho trgf cua Chinh phu va Bo Nong nghiep va PTNT thong qua cac chinh sach ve giong, thiic an va thuoc hoa chat phong tri benh tom nham giam chi phi va giam kho khan cho ngfldi nuoi tom TCT hien Ben canh do, can co nhieu ldp tap huan ve kien thiic phong tri benh cho t m TCT mo hinh ao lot bat nham nang cao hieu qua san xuat cung nhii phat trien on dinh hcfn tiicfng lai LCII CAM ON De tai diidc tai trd bdi Dii an Nang cap Triidng Dai hoc Can Thd VN14-P6 bang nguon von vay ODA tvi chinh phu Nhat Ban TAl l ie u t h a m kh a o D Minh Vanh, Tran Hoang Tuan, Tran Ngoc Hai va TrUdng Hoang Minh, 2016 Danh gia hieu qua nuoi tom the chan trang tham canh theo cac hinh thiic to chiic dong bang song Cdu Long Tap chi Khoa hoc TrUdng Dai hoc Can Thd, quyen 2(42): 50-57 Huynh Van Hien, Dang Thi Phiidng, Nguyen Ih i Kim Quyen, Le Nguyen Doan Kh6 i va Nobuyyuki Yaki, 2020 So sanh hieu qua san xuat gifla mo hinh nuoi tham canh t m the chan trang thong thfldng va VietGAP Soc Trang Tap cht Khoa hoc Cdng nghe Nong nghiep Viet Nam, so 1(110): 97-102 Le Kim Long, 2017 Phan tich hieu qua kinh te - moi trflcfng nu i thuy san: TrflcJng hdp nghe nuoi t m the chan trang tham canh tai tinh Ninh Thuan Tap chi Cong ThUdng, 1(8): 129-135 Nguyin Thanh Long va Huynh Van Hien, 2015 Phan tich hieu qua ky thuat va tai chinh cua mo hinh nuoi tom the chan trang tinh Ca Mau Tap chi Khoa hoc TrUdngDai hoc Can Thd, 37(1): 105-111 Nguyin Thi Kim Quyin, 2017 Phan cong lao dong va vai tro cua gicfi nuoi thuy san: nghien cflu trfldng hdp muoi tom su quang canh cai tien tinh Bac Lieu Tap chi Khoa hoc TrUdng dai hoc Can Tha, 51: 64-73 Pham Nhat TrUdng, 2019 Hieu qua ky thuqt cua mo hinh nuoi tom the chan trang thdm canh tren ao lot bat tqi huyen Dam Ddi tinh Ca Mau Luan van tot nghiep thac si Nganh Kinh te nong nghiep Khoa Kinh te, Trfldng Dai hoc Can Thd, Thanh Can Thd, 75 trang VASEP, 2019a Bao cao nganh hang tom Viet Nam, 48 trang VASEP, 2019b Nuoi tom the lot bat giai doan mang lai hieu qua kinh te cao, giam rui ro cho ngfldi nuoi nen dfldc flng dung huyen Nha Be va Can Gid, TP.HCM http://VASEP.com.vn/Tin-Tuc/1040_55866/Hieuqua-tu-nuoi-tom-the-lot-bat.htm Truy cap 30/10/2020 VASEP, 2021 Tong quan nganh thuy san Viet Nam http://VASEP.com.vn/1192/OneContent/tongquan-nganh.htm Truy cap 20/05/2021 Vo Nam Sdn, Dao minh Hai, Nguyin Thi D iin, Vu Van Thuy, Dinh Xuan Lap, Nguyin D5 Quynh, va Nguyin Thanh PhUdng, 2019 Phan tich hieu qua san xuat va sfl dung nang lfldng diin nuoi tom su (Penaeus monodon) va the chan trang (Litopenaeus vannamei) tham canh va quang canh cai tien d Dong bang Song Cflu Long Tap chi Khoa hoc TrUdng dqi hoc Can Tha Tap 55, So IB (2019): 66-79 Quyen, N.T.K., Hien, H.V., Khoi, L.N.D., Yagi, N., Riple, A.K.L., 2020 Quality Management Practices of Intensive Whiteleg Shrimp (Litopenaeus vannamei) Farming: A Study of the Mekong Delta, Vietnam Sustainability, MDPI, Open Access Journal, vol 12:4520 Ranjan, A and Boyd, C E., 2018 Appraising pond liners for shrimp culture Global aquaculture Advocate https://www.aquaculturealliance.org/ advocate/appraising-pon-liners-shrimp-culture/ ?headlessPrint=AAAAAPIA9c8r7gs82oWZBAAccessed on 26/03/2021 Vietfish magazine, 2019 Success in shrimp c u k m comes from advanced technology, blip*// Vietfishmagazine.com/aquaculture/success-shrimpculture-comes-advanced-technologyhtmL A o z flr i on 24/05/2021 Tap chi Khoa hoc va Cong nghe Nong nghiep Viet Nam - So 05(126)/2027 Technical and financial efficiency of whiteleg shrimp (Litopenaues vannamie) in the intensive plastic lining pond model in the Mekong Delta Huynh Van Hien, Dang Thi Phuong, Nguyen Thi Kim Quyen Abstract The study was targeted to describe current situation of technical and financial indicators of whiteleg shrimp farming model in plastic lining ponds in the Mekong Delta The study was conducted in 2020 through face-to-face interviewing of 178 farmers culturing shrimp in plastic lining pond in the key whiteleg shrimp farming provinces in the Mekong Delta Descriptive statistics were applied to describe the current situation of technical and financial aspects of the farming model The results showed that the farming area ranged from 0.9 - 3.4 ha/household with average stocking density of 157.1 ind./m2 After culturing of 90 - 100 days/crop, the productivity reached 15.9 tons/ha/crop The total cost of shrimp farming was 1.3 billion VND/ha/crop, corresponding to production cost/kg of 81.1 thousand VND With an average selling price of 116.7 thousand VND/kg, the net profit was 35.6 thousand VND/kg and the margin profit was 44% Keywords: Whiteleg shrimp, model, plastic lining pond, technical and financial efficiency Ngay nhan bai: 02/4/2021 Ngay phan bien: 18/5/2021 Ngiidi phan bien: TS Pham Thai Giang Ngay duyet dang: 04/6/2021 ... khau hao dao ao, khau hao may moc thiet bi va khau hao bat lot Ngddi nuoi tom thddng hay sd dung bat PVC (poly vinyl chloride) co tuoi tho 10 nam vdi gia mua ban dau cao nen chi phi khau hao bat... Viet Nam - So 05(126)/2021 3.2 Khia canh tai chfnh cua mo hinh nuoi tom the chan trang ao lot bat van chiem ty le cao nhat tha vcfi mat cao hdn va FCR cung cao hdn (Bang 1) Ke den la chi phi thuoc... mo hinh nuoi tom ao lot bat cho phep ho nuoi tha vdi mat cao, trung binh 157,1 ± 37,7 con/m2, cao hdn 1,5 lan so vdi mo hinh nuoi tom TCT tham canh thong thddng (Nguyen Thanh Long va Huynh Van