   CHO  LÁ     KHÁC NHAU (, HÉO  KHÔ)      VÀ  AXIT HYDROGEN CYANIDE THU  TRÊN   1  2 Inger Ledin, 2  2 Ewa Wredle          1            2  Tóm tt   -   -      -   1. t vn  Manihot esculenta    000 ha    (2005)   Theo  (2000) (2005)   (2008)  a  (2007)   -                 1993)   -)  (Cheeke, 1998). - -  2. Ni dung và phng pháp nghiên cu   - 2.2.   - - -  -       (2003)    AOAC (1975, 1990)  (1991).   2.4.      (2003)      1992)  .     (Minitab, 2008). - ij =  + T i + e ij  ijk   i  ij   - ijkl =  + T i + P j + A k(l) + S l + e ijkl  Y ijkl  j  j   k(l)  l   ijkl  - 2006)  (SAS, 2008)       ij =  + T i + C j + TC ij + e ij  ij   j  ij   ij   3. Kt qu     .  1   VCK g/kg VCK mg/kg VCK  g/kg CP Tro NDF ADF Total tannins HCN  189(21) 134(8) 83(6) 736(29) 394(22) 11(1) -  968(23) 22(2) 17(1) 63(8) 32(3) 18(3) 51(17) FCF 204(19) 208(3) 65(5) 419(19) 306(43) 35(3) 333(16) WCF 372(18) 205(8) 68(2) 417(46) 302(45) 23(3) 217(12) CH 953(19) 176(11) 73(8) 539(39) 342 (55) 15(4) 60(17) 1      .                 1 FCFd WCFd CHd SE   192 219 225 12,44  97 97 97 0,00 FCF 306 - - 15,10 WCF - 366 - 13,00 CH - - 309 20,03  595 b 682 a 630 ab 20,47  72 b 78 a 74 ab 2,00  3,4 3,6 3,4 0,11  399 b 492 b 901 a 56,04  OM 558 b 642 a 588 ab 18,99 CP 99 b 109 a 100 b 3,12 NDF 281 b 339 a 334 a 11,84 ADF 157 b 192 a 192 a 7,23 Tannins 15,5 b 11,9 a 6,8 c 0,32  114,6 a 86,6 b 25,5 c 3,21  6,47 6,78 6,51 0,21  14,3 15,9 14,7 0,66  20,1 22,1 20,7 0,72  73,1 76,7 75,6 3,04 Tiêu kg VCK/kg LWG 8,1 8,9 8,3 0,28 kg CP/kg LWG 1,35 1,43 1,32 0,04 a,b,c  1    -          -  .  1 FCFd WCFd CHd SE   243 237 267 7,24  97 97 97 0,00 FCF 339 - - 26,50 WCF - 377 - 36,10 CH - - 326 16,80  679 711 689 20,56  OM 635 b 668 a 642 b 19,58 CP 111 b 122 a 109 b 3,83 NDF 319 b 325 b 378 a 6,36 ADF 181 b 185 b 215 a 7,29 Tannins 16,3 a 13,3 b 7,6 c 0,73  122,6 a 88,3 b 23,2 c 6,99  VCK 674 a 687 a 600 b 24,90 OM 686 a 691 a 620 b 24,49 CP 654 a 665 a 612 b 22,50 NDF 550 a 550 a 509 b 14,59 ADF 506 517 475 14,15  - 17,6 b 19,4 a 17,6 b 0,62 - 6,8 b 6,4 b 7,8 a 0,43 - 7,4 b 9,1 a 6,2 b 0,88 - 3,2 3,8 3,5 0,38 -- 0,18 0,20 0,20 0,06  7,42 7,46 7,58 0,41  -  .  1 FCFd WCFd CHd SE  401,7 a, A 395,4 a, A 102,3 b 54,74  1 468,3 a, A 423,8 b, AB 102,0 c 53,71 2 583,4 a, B 470,0 a, B 94,9 b 55,34 4 581,4 a, B 556,7 a, BC 88,5 b 55,24 8 698,3 a, C 608,4 b, C 97,4 c 56,89 12 863,3 a, D 760,4 b, D 131,5 c 55,42 18 835,0 a, D 621,7 b, C 103,9 c 54,68 24 533,3 a, B 394,7 b, A 85,5 c 54,73 a,b,c  A, B, C, D  1  y = -2.50x 2 + 64.23x + 390.78 y = -2.23x 2 + 51.26x + 388.44 y = -0.05x 2 + 0.54x + 50.63 0 200 400 600 800 1000 0 5 10 15 20 25 30 FCFd WCFd CHd Fig. 1.               -  -  4. Tho lun  cs. (2008)  (2009)  cs. (2005),  (2006), Phengv (2007) (2007)                  Wiktorsson (2006),    (2007),    (2007)      (2009) Vetter (2000), De Bruijin (1973).  (2005), Phengvichith and Ledin (2007)   - (2008)  o  o                       (2008)                (2005),  (2008)--   (Vetter, 2000) --    (Kumar, 1992) --glucosidase (Essen, 1993) -  EFSA, 2007; Kumar, 1992; NTP, 1993). Theo  (2003) -Conn, 1979; Kum      (1989) (2002). 5. Kt lun         Tài liu tham kho 1. Achidi, A.U., Ajayi, O.A., Maziya-Dixon, B., Bokanga, M., 2008. The effect of processing on the nutrient content of cassava (Manihot esculenta Crantz) leaves. J. Food Proc. Pres. 32, 486-502. 2. Alan, J.D., John, A.M., 1993. 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Livestock Production on Local Feed Resources Agricultural Publishing House, 16-19 22 NRC, 1985 Nutrient Requirement for Sheep, 6th revised ed National Academy Press, Washington, DC, USA 23 NTP, 1993 Sodium cyanide administered in drinking water to F344/N rats and B6C3F1 mice Toxicology Report Series No 37; NIH Publication 94-3386 North Carolina, USA 24 Patel, R., Singh Patel, K., 1999 Simple and specific .    CHO  LÁ     KHÁC NHAU (, HÉO  KHÔ)      VÀ  AXIT HYDROGEN CYANIDE THU  TRÊN   1  2 Inger. Manzano, H., Soto-Blanco, B., Górniak, S.L., 2003. Toxicokinetics of cyanide in rats, pigs and goats after oral dosing with potassium cyanide. Arch. Toxicol. 77, 330-334. 30. Tewe, O.O., Iyayi,. Alan, J.D., John, A.M., 1993. Effect of oral administration of brassica secondary metabolites allyl cyanide, allyl isothocyanate and dimethyl disulphide, on the voluntary food intake and metabolism