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        ¥»¸ÕÅç¥Øªº¦b±´°Q¹}®Æ¤¤¶ÀÄT¬r¯À¹ï1¡ã5¶gÄÖ»OÆW¤gÂû¤§¼vÅT¡C¨Ñ¸ÕÂû°¦«Y±Ä¤¤¿³¤j¾Ç¨|¦¨¤§BxDL«~¨t»OÆW¤gÂû¡A¸ÕÅç¥H§¹¥þ³{¾÷³]­p(CRD)¡A5³B²z¡A¨C³B²z2­«ÂÐ(¤½¥À¦U¥b)¡A­p240°¦¡C¸ÕÅç´Á¶¡±ÄÅ¢¹}¡A¹}®Æ¡B¶¼¤ô¦Û¥ÑÄá¨ú¡C¸ÕÅç¹}³¥H¥É¦Ì¡Ð¤j¨§²Ë¬°¥D¤§¤é³¡A²Ê³J¥Õ½è¬°22.5¢H¡A¥NÁ¯ର3100kcal¡þkg¡A¦A²K¥[¶ÀÄT¬r¯À¢Ð1²Ê»s«~¡A¨Ï¹}³¤¤¶ÀÄT¬r¯À¢Ð1§t¶q¬°0¡B100¡B200¡B400¤Î800ppb¡C

        ÂǥѴú©wÅé¼W­«¡B¹}®Æ§Q¥Î®Ä²v¡B¨x¡BµÊ¡B¯Ø¡B¨x­«¡þÅé­«¤Î¦å¤¤¦å²y®e¿n¤ñ¡C¾¢Ói¯ó¾L»ÄÂಾúA(GOT)¡B¾¢Ói¤þ଻ÄÂಾúA(GPT)¡BÁ`³J¥Õ½è(TP)¡BÁ`Áx¬õ½è(T-BIL)¡B¦å²M²y³J¥Õ(GLO)¡B¦å²M¥Õ³J¥Õ(ALB)»P¨xŦ²Õ´¤Á¤ù¡C¥Hµû¦ô¥xÆW¤gÂû¹ï¶ÀÄT¬r¯À¤§±Ó·P©Ê¡Cµ²ªGÅã¥Ü¡G1¡ã5¶gÄÖ»OÆW¤gÂû¤§¦U³B²z¶¡ªºÅé¼W­«¡B¹}®Æ±Ä­¹¶q¤Î¹}®Æ§Q¥Î®Ä²v§¡µLÅãµÛ®t²§(P¡Ö0.05)¡C»OÆW¤gÂû¦U³B²z²Õ¤§Å¦¾¹­«¶q¡A¥H800ppb²Õ¤§¨xŦ­«ÅãµÛ¸û¨ä¥L³B²z²Õ¬°»´(P¡Õ0.05)¡A¦ý¨xŦÁ`¯×½è§t¶q¤Î¨x­«¡þÅé­«¤ñ¤£¨ü¼vÅT¡C¦å²G¥Í¤Æ¤ÀªR¤è­±¡A»OÆW¤gÂû¦U³B²z¶¡GOT¡BPCV¡BT-BIL¡BALB¡BGLOµLÅãµÛ®t²§¡A¦ý800ppb³B²z²Õ¤§GPT¬¡©ÊÅãµÛ¸û¨ä¥L³B²z²Õ¬°°ª(P¡Õ0.05)¡C¨xŦ²Õ´¯f²z¤Á¤ù¤è­±¡A»OÆW¤gÂû¦U³B²z²Õ¨xŦ§¡¥¿±`¡Cºî¦X¥»¬ã¨s¤§¦¨ªG¡AÅã¥Ü»OÆW¤gÂû¹ï¶ÀÄT¬r¯À¤§­@¨ü©Ê»á°ª¡A¥þ´Á¹}¾iÂû°¦§¡µL¦º¤`¡A¥B800ppb³B²z®É¥Íªø©Ê¯à¤§ªí²{¡A¤´¥¼¨ü¼vÅT¡C

(ÃöÁä»y¡G¶ÀÄT¬r¯À¡A»OÆW¤gÂû¡A¥Íªø©Ê¯à¡A¦å²G¥Í¤Æ­È)

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        ¶ÀÄT¬r¯À¬°ÄTµßÄݤ¤Aspergillus flavus¤ÎAspergillus parasiticus©Ò²£¥Í¤§¤G¦¸¥NÁ²£ª«(Sargeant et al., 1961)¨ã±jµõ¤§¨x¬r©Ê»P­PÀù©Ê¡A¹ï¤H¯b°·±d«Â¯Ù¦Ü¹d¡C

        ¶ÀÄT¬r¯À¹ïÂû°¦³y¦¨¤§¬r®`¦³¡G¥Íªø©Ê¯à¤Î¹}®Æ§Q¥Î²vÅÜ®t(Smith and Hamilton, 1970)¡A¯×ªÕ¨x(Hamilton and Carlich, 1971)¡A¯ØŦ»Ã¯À¬¡©Ê­°§C(Osborne et al., 1981 a,b)¡A§K¬Ì¥\¯à´î®z(Giamborne et al., 1978¡FCampbell et al., 1983¡FVirdi et al., 1989)¡A¦å¾®©µ¿ð(Doerr and Hamilton, 1981)¡A¥Õ³¾¯g(Tyczkowski and Hamilton, 1987¡FSchaeffer et al., 1988 a,b)¡A§C³J¥Õ¦å¯g(Huff and Hamilton, 1975)¡AÅ餺¯à¶q¥NÁÂÂZ¶Ã(Raj and Venkitasubramanian, 1974¡FRajion and Farrell, 1976)µ¥½Ñ¯gª¬¡A³y¦¨®a¯b·~¬É¼ç¦b©Ê¤§­«¤j¸gÀÙ·l¥¢¡C

        °ê¤º¦³Ãö¶ÀÄT¬r¯À¹ï®a¸V¼vÅT¤§¬ã¨s¶È¨£©ó¨Hµ¥(1987,1988)¤Î§dµ¥(1990)¡A¨âªÌ¤§¸ÕÅç¤À§O¨Ï¥Î¥Õ¦×Âû»P¥xÆW¤gÂû¡C

        ¦Ó¥xÆW¤gÂû®ø¶O¶q³v¦~¼W¥[¡A¨ä¸gÀÙ»ù­È¥ç¤j¬°´£°ª¡C¬G¥»¸ÕÅ礧¥Øªº¦®¦b±´°Q¶ÀÄT¬r¯À§t¶q¹ï1¡ã5¶gÄÖ¥xÆW¤gÂû¤§¼vÅT¡AÂǥѴú©w¥Íªø©Ê¯à¡A¦å²G¥Í¤Æ¤Î¨xŦ²Õ´¯fÅÜ¥HÁA¸Ñ¥xÆW¤gÂû¶ÀÄT¬r¯À¤§±Ó·P©Ê¡A¨Ã¥i¨Ñ·~¬É¤Î¥¼¨Ó¬ÛÃö¬ã¨s¤§°Ñ¦Ò¡C

¸ÕÅç§÷®Æ»P¤èªk

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        ¥»¸ÕÅç«Y¿ï¥Î¤¤¿³¤j¾Ç¯bªª¨t¨|¦¨¤§BxDL«~¨t»OÆW¤gÂû©ó¥X¥Í¤é¸g©Ê§OŲ©w»P°¨¥ß§J¬Ì­]±µºØ¡A¸g¥­¹}¨|Âú¤@¶g«á¡AÂû°¦­Ó§O¯¯­«¨Ã±¾¤WÃѧOÁl¸¹¡A¨ÌÅé­«³{¾÷¤À°t¦Ü¦U³B²z²Õ¤¤¨Ñ¸Õ¡CÂû°¦¨Ã©ó¤T¤éÄ֮ɬI¥H·s«°Âû½E»P¶Ç¬V©Ê¤ä®ðºÞª¢(ND¡ÏIB)¬Ì­]±µºØ¡A¦A©ó²Ä¤G¡B¥|¶gÄ֮ɸɱj·s«°Âû½E¬Ì­]¡C

        ¥»¸ÕÅç±Ä§¹¥þ³{¾÷³]­p(CRD)¡A5ºØ¬r¯À§t¶q³B²z¡A¨C³B²z¤G­«ÂСA¥H¨CÅ¢¬°¤@­«ÂФ§¸ÕÅç³æ¦ì¡A§t24°¦Âû¡A­p10Å¢¡A¦@240°¦Âû¡C

        ¸ÕÅç´Á¶¡§¡¹}¥H¥É¦Ì¡Ð¤j¨§²Ë¬°¥D¤§°ò¦¤é³¡A¨ä²Ê³J¥Õ½è»P¥NÁ¯à¤À§O¬°22.5¢H¡B3100kcal¡þkg¡C¤é³¤¤²K¥[¶ÀÄT¬r¯À¢Ð1¤§²Ê»s«~¡A¨Ï¹}³¤¤¶ÀÄT¬r¯À§t¶q¤À§O¬°0¡A100¡A200¡A400¤Î800ppb¡A¤é³²Õ¦¨¦C©óªí1¡C

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Table  1.   Composition    of     basal    diet.

­ì                               ®Æ Ingredient ¢H
¥É¦Ì¯»

¤j¨§¯»

³½¯»

¤j¨§ªo

ÁC»Ä²B¶t

¥Û¦Ç¥Û¯»

­¹ÆQ

DL-¥Ò²¸Ói»Ä

´â¤ÆÁxÆP

ºû¥Í¯À¹w¦ñ®Æa

Äqª«½è¹w¦ñ®Æb

²yÂί»-60

¦X        ­p

Ground corn

Soybean meal

Fish meal, 65%

Soybean oil

Dicalcium phosphate

Limestone, pulverized

Salt

DL-methionine

Choline chloride, 50%

Vitamin premix

Mineral premix

Coxistac-60

Total

57.73

30.00

7.00

2.00

1.90

0.60

0.30

0.12

0.10

0.10

0.10

0.05

100.00

¦ô­p­È

²Ê³J¥Õ½è

¥NÁ¯à

§t²¸Ói°ò»Ä

¶t

¦³®ÄÁC

Calcutated value

Crude protein, %

ME, kcal/kg

Sulfur amino acid, %

Calcium, %

Available phosphorus

¡@

22.5

3100

0.89

1.07

0.50

a.¨C¤½¤ç¹}³²K¥[(Provided the following contents per kg of diet):Vitamin A 7500 IU Vitamin D3 1500IU; Vitamin E 221 IU; Vitamin K3 3mg;Vitamin B1 14mg;Vitamin B2 5mg;Vitamin B6 2mg;Vitamin B12 0.004mg;Pantothenic acid 10mg;Niacin 20mg;Biotin 0.1mg;Folic acid 0.5mg; Choline chloride 915mg.

b.¨C¤½¤ç¹}³²K¥[(Provided the following contents per kg of diet):FeSO 200mg;ZnO 60mg;CuSO4 16mg;KI 0.4mg;Na2 SeO3 0.08mg;ScSO4 1.2mg.

        ¸ÕÅç©óÂû°¦5¶gÄ֮ɡA¦Û¦U³B²z²Õ¤¤³{¾÷¨ú32°¦Âû¡A¸g±Ä¦å«á³Æ¥Î¡A¨Ã¥H¤ò²Ó§lºÞ(9£gL¡A32mm)§l¨ú¦å²G¡A¸g¦å²y®e¿n¤ñ´ú©w»ö(PCV meter¡AMinizentrifuge¡ACompar M1100)´ú©w¦å²y®e¿n¤ñ¡CÂû°¦Ä묹«á¡A¨ú¨xŦ¡B¯ØŦ¡BµÊŦ¯¯­«¨Ã°O¿ý¤§¡C

        ¦å²G¸g»·¤ß¤ÀÂ÷(3000RPM¡A1610xg¡A15¤ÀÄÁ)©Ò±o¦å²M¡A¶J¦s©ó¡Ð20¢J§N­áÂd¤¤¡F«Ý§@¤ÀªR¤§¥Î¡C¨Ã¨ú¨xŦ¥k¸­¦yºÝ¬ù5gm¡A¨â¶ô¡A¤@¨Ñ¨xŦÁ`¯×½è(total lipids)¿@«×´ú©w¡A¥t¤@­Ó©w©ó10¢H¤§ºÖ°¨ªL·»²G¤¤¨Ñ²Õ´¯f²z¤Á¤ù¤§¥Î¡C

        ¸ÕÅç±ÄÅ¢¹}¡A¸ÕÅç´Á¬°1¡ã5¶gÄÖ¡A¸ÕÅç´Á¶¡¤§¹}®Æ»P¶¼¤ô¦Û¥ÑÄá¨ú¡A¨Ã©ó¸ÕÅçµ²§ô®É¡AÂû°¦¤©¥H­Ó§Oµû¶q¡A¦P®É°O¿ý¹}®Æ®ø¯Ó¶q¡C

¤G¡B¶ÀÄT¬r¯À¤§»s³Æ¤Î©w©Ê©w¶q¤ÀªR

        ¶ÀÄT¬r¯À²Ê»s«~¤§²£»s«Yºî¦XShotwell et al. (1966)¡FSmith and Hamilton (1969)¡FWest et al. (1973)¤§¤èªk¡C

        ²Ê»s«~¸gµÑ¨ú»P²b¤Æ³B²z«á¡A¦A¸gsilica gelºÞ¬W¶i¦æ²M²b¤Æ¡A¥H¤vÖJ¡F¦B¾L»Ä(9¡G1)¬y¬~ºÞ¬W¡A¬y¬~²G¼o±ó¡C¥H40ml¤G´â¥ÒÖJ¡G¤þà¬(4¡G1)¨R´£ºÞ¬W¨Ã¥Î100ml¯ù¦â¿@ÁY²~¦¬¶°¤§¡A40¢J¤ô¯D¥[¼ö¡F´îÀ£±ÛÂà¿@ÁY¦Ü°®¡A¥H¤þବ~¦Ü7ml¯ù¦â²~¡A50¢J¥[¼ö¤U¡A³q´á®ð§j°®¡C

        ¤T¬t¤A»Ä(trifluoroacetic acid, TFA)­l¥Í¤Æ³B²z¡G©ó¯ù¦â²~¥[¤J200£gl¥¿¤vÖJ¤Î50£gl TFA¡A²V¦X·n°Ê30¬í¡A©ó40¢J¯M½c¥[¼ö10¤ÀÄÁ¡A§N«o«á¥[1ml¤ô¡F¤AÙæ(9¡G1)¡A²V¦X·n°Ê30¬íÀR¸m10¤ÀÄÁ«á¥H°ª©Ê¯à²G¬Û¼hªRªk(HPLC)¤ÀªR(Tarter et al., 1984)¡C

¥|¡B¥Í¤Æ¤ÀªR

        ¦å²M¤¤¾¢Ói¯ó¾L»ÄÂಾúA(glutamate oxaloacetate transaminase, GOT)¡B¾¢Ói¤þ଻ÄÂಾúA(glutamate pyruvate transaminase, GPT)»Ã¯À¬¡©Ê¤ÎÁ`Áx¬õ½è(total bilirubin, T-BIL)¡BÁ`³J¥Õ½è(total protein, TP)¡B¦å²M¥Õ³J¥Õ(serum albumin, ABL)¤Î²y³J¥Õ(globulin, GLO)¿@«×¤D¥H¥þ¦Û°Ê¦å²G¥Í¤Æ¤ÀªR»ö(Hitachi 7050 chemistry analyzer)»²¥HWako¤½¥q¥Í²£¤§®M²Õ´ú©w¤§¡C

¤­¡B²Î­p¤ÀªR

        ¸ÕÅç©Ò±o¼Æ¾Ú§¡¥ý¸gÅܤè¤ÀªR¡A«á¥H¾HªÖ¤ó·s¦hÅÜ°ì´ú©wªk(Duncan's New Multiple Range Test)(Steel and Torrie, 1980)´ú©w¦U³B²z¶¡¤§®t²§ÅãµÛ©Ê¡C

µ²ªG»P°Q½×

        ¸ÕÅçÂû°¦¥Íªø©Ê¯à¤§´ú©w¥]¬AÅé¼W­«¡B¹}®Æ±Ä­¹¶q¤Î¹}®Æ§Q¥Î®Ä²v(ªí2)¡C¤é³¤¤¶ÀÄT¬r¯À§t¶q¹ï1¡ã5¶gÄÖ¥xÆW¤gÂû¦U³B²z²Õ¤§Åé¼W­«¡B¹}®Æ±Ä­¹¶q¤Î¹}®Æ§Q¥Î®Ä²v¤§¼vÅT¡A¦U³B²z¶¡§¡µLÅãµÛ®t²§(P¡Õ0.05)¡C¶ÀÄT¬r¯À¹ï¥Íªø©Ê¯à¤§¼vÅT¡A¥]¬A¥Íªø¤Îµo¨|¨üªý¡A¹}®Æ§Q¥Î®Ä²vÅÜ®t(Smith and Hamilton, 1970¡FHuff et al., 1986¡FDoerr et al., 1983)¡A¦¹¤D¥Ñ©ó°ª¶q©Î¯Â¤ÆAFB¤§²K¥[©Ò¾É­P¤§¬r®`§@¥Î¡FGiambrone et al. (1985)«ü¥X800ppb·|­°§C¥Õ¦×Âû¤§¥Íªø¤Î¹}®Æ§Q¥Î®Ä²v¡CBryden et al. (1980)«ü¥XÂû°¦«~¨t»P¶ÀÄT¬r¯À¶¡¨ã¥æ·P§@¥Î¡F¥B¶ÀÄT¬r¯ÀÅãµÛ­°§C¹}®ÆÂà´«²v¡A¦ý±Ä­¹¶qµL¼vÅT¡C§dµ¥(1990)«ü¥X¶ÀÄT¬r¯À400ppb¹ï¥xÆW¤gÂû¡A¥çµL¥Íªø§í¨î²{¶H¡A»{¬°¥xÆW¤gÂû¹ï¶ÀÄT¬r¯À¨ü©Ê»á°ª¡C¥»¬ã¨s¤¤¥Ñ¥xÆW¤gÂû¤§µ²ªGÅã¥Ü¹ï800ppb³B²z®É¡A¤´¥¼¦³Åé­«ÅãµÛ­°§C¤§²{¶H¡CDonaldson et al. (1972)«ü¥X¶ÀÄT¬r¯À§í¨îÂû°¦¨xŦ¯×ªÕ»Ä¦X¦¨»Ã¯À¤ÎÃì¥[ªøúA¨t²Î¤§§@¥Î¡C¶ÀÄT¬r¯À¯g¤§¨å«¬¯f¼x¬°¯×ªÕ¨x¡A¦]¨x¤¤¯×ªÕªº»W¿n¤D¬°¸z¹D§l¦¬¸gªù¯ß¦Ó¨Ó¤§¯×ªÕ»Ä»W¿n¡A¤S¦]¯×³J¥Õ¦X¦¨¨ü¶ÀÄT¬r¯À§í¨î¡A¨Ï¯×ªÕ¦Û¨x¤¤²¾¥X¤Ö¡A¦Ó¶i¤J¤£Â_¼W¥[©Ò­P¡C(Tung et al., 1972)¡C

ªí¤G ¹}®Æ¤¤¶ÀÄT¬r¯À§t¶q¹ï1¡ã5¶gÄÖ¥xÆW¤gÂû¥Íªø©Ê¯à¤§¼vÅT

Table 2. Effect of aflatoxin in diet on the growth performance of Taiwan country chickens during 1~5 weeks of age.

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Items

¶ÀÄT¬r¯À§t¶qLevels of aflatoxin in diet¡Appb ¼Ð·Ç¾÷®t

SE

0 100 200 400 800
¥­§¡¼W­«

Avg. weight gain, g

¹}®Æ®ø¯Ó¶q

Feed intake, g

¼W­«¡þ¹}®Æ

gain¡þfeed

413

¡@

840

¡@

0.491

¡@

419

¡@

841

¡@

0.498

¡@

412

¡@

838

¡@

0.492

¡@

411

¡@

826

¡@

0.498

¡@

407

¡@

837

¡@

0.486

¡@

4.47

¡@

7.00

¡@

0.02

¡@

*¥H¶ÀÄT¬r¯À¢Ð1¬°°ò·Ç¡C

Based on aflatoxin B1¡C

¥»¸ÕÅç¤é³¤¤¶ÀÄT¬r¯À§t¶q¹ï1¡ã5¶gÄÖ¥xÆW¤gÂûŦ¾¹­«¶q»P¦å²y®e¿n¤ñ¤§¼vÅT¦C©óªí3¡C¦U³B²z¤¤¥H800ppb³B²z²Õ¤§8.58§J³Ì»´¡AÅãµÛ§C©ó¨ä¥L³B²z²Õ(P¡Õ0.05)¡A¦b¨x­«¡þÅé­«¤ñ¤è­±¦U³B²z²Õ¶¡¨ÃµLÅãµÛ®t²§¦s¦b¡C
ªí¤T ¹}®Æ¤¤¶ÀÄT¬r¯À§t¶q¹ï1¡ã5¶gÄÖ¥xÆW¤gÂûŦ¾¹­«¶q»P¦å²y®e¿n¤ñ¼vÅT

Table 3. Effect of aflatoxin in diet on organ weight and hematocrit of Taiwan country chickens during 1~5 weeks of age.

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Items

¶ÀÄT¬r¯À§t¶qLevels of aflatoxin in diet¡Appb ¼Ð·Ç¾÷®t

SE

0 100 200 400 800
¨xŦ­«¡Ag

Liver wt., g

¨x­«¡þÅé­«

Liver wt.¡þBody

¨xŦÁ`¯×½è¡Ag

Liver total lipid, g

µÊŦ­«¡Ag

Spleen wt., g

¯ØŦ­«¡Ag

Pancrease wt., g

¦å²y®e¿n¤ñ¡A¢H

Hematocrit, %

9.10a

¡@

2.20

¡@

1.48

¡@

0.78

¡@

1.11

¡@

26.67

¡@

9.21a

¡@

2.19

¡@

1.53

¡@

0.69

¡@

1.13

¡@

25.96

¡@

9.28a

¡@

2.25

¡@

2.05

¡@

0.82

¡@

1.01

¡@

26.68

¡@

9.34a

¡@

2.27

¡@

1.47

¡@

0.84

¡@

0.95

¡@

26.43

¡@

8.58b

¡@

2.10

¡@

1.97

¡@

0.72

¡@

1.09

¡@

24.87

¡@

5.80

¡@

3.67

¡@

12.37

¡@

3.58

¡@

3.60

¡@

4.12

¡@

ab¡G¦P¤@¦æ¥­§¡­È«ù¤£¦P¦r¥ÀªÌ¡AªíÅãµÛ®t²§(P¡Õ0.05)¡C

Means of the same row with different superscript letters are significantly different (P<0.05)¡C

(ªí3)Åã¥Ü¨xŦÁ`¯×½è§t¶q¦U³B²z²Õ§¡µLÅãµÛ®t²§¡A¬GµL¯×ªÕ¨x±¡§Î¡C800ppb³y¦¨¨x­«ÅãµÛ­°§CÀ³¬°ªì´Á¶ÀÄT¬r¯À¯g¡A¨ÏÂû°¦¥Íªø¨ü§í¨î¡A¨x­«¥ç§e¦P¨B´î¤Ö¡A¬G¨x­«¡þÅé­«¤ñ­È®É¡A¦U³B²z²Õ§eµLÅãµÛ®t²§¡C¦¹»PMerkley et al. (1987)¤Î(Huff et al. (1986)©Ò«üºÙªì´Á¶ÀÄT¬r¯À¯g¡A¨x­«­°§C¤§µ²ªG¤@­P¡C

        ¤@¯ë¥ÎGOT»PGPT¬¡©Ê¥H´úª¾¨xŦ¯e±w¤§«ü¼Ð¡A¤é³¤¤¶ÀÄT¬r¯À¹ï»OÆW¤gÂû¦å²G¥Í¤Æ­È¤§¼vÅT(ªí4)¡BGOT¬¡©Ê¨Ã¤£¨ü¶ÀÄT¬r¯À¤§¼vÅT¡A¦ýGPT©ó800ppb³B²z²Õ®É¬¡©Ê«hÅãµÛ¦a¸û¨ä¥L³B²z²Õ¬°°ª¡A¥Ñ©óGPT¬¡©Ê¨ã¦³¨xŦ±M¤@©Ê¡A¦¹»P¨xŦ­«¶q(ªí3)¥i¬Û¦LÃÒ¡CAvidar et al. (1986)«ü¥X¨xŦ¨ü¶ÀÄT¬r¯À¼vÅT¨Ï¥\¯à´î®z¡A¨x²Ó­M¤§º¯³z©Ê¼W¥[­PGPT¬¡©Ê´£°ª¡C¥B¥H¦å²G¥Í¤Æ­È¬°«ü¼Ð¡Aµû¦ôÂû°¦¹ï¶ÀÄT¬r¯À¤§±Ó·P©Ê¸û¥Íªø©Ê¯à°ª(ªí2)¬°±Ó·P¡C

ªí¥| ¹}®Æ¤¤¶ÀÄT¬r¯À§t¶q¹ï1¡ã5¶gÄÖ¥xÆW¤gÂû¦å²G¥Í¤Æ¤§¼vÅT

Table 4. Effect of aflatoxin in diet on blood biochemistry of Taiwan country chickens during 1~5 weeks of age.

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Items

¶ÀÄT¬r¯À§t¶qLevels of aflatoxin in diet¡Appb ¼Ð·Ç¾÷®t

SE

0 100 200 400 800
¾¢Ói¯ó¾L»ÄÂಾ¡AU¡þl

Glutamate oxaloacetate transaminase, U¡þI

¾¢Ói¤þ଻ÄÂಾ¡AU¡þl

Glutamate pyruvate transaminase, U¡þl

Á`Áx¬õ½è¡Amg¡þdl

Total bilirubin, mg¡þdl

Á`³J¥Õ½è¡Ag¡þdl

Total protein, g¡þdl

¦å²M¥Õ³J¥Õ¡Ag¡þdl

Serum albumin, g¡þdl

¦å²M²y³J¥Õ¡Ag¡þdl

Serum Globulin, g¡þdl

153.73

¡@

172.28b

¡@

0.50

¡@

3.83

¡@

1.43

¡@

2.40

¡@

156.07

¡@

178.89b

¡@

0.54

¡@

4.00

¡@

1.41

¡@

2.59

¡@

165.90

¡@

169.84b

¡@

0.46

¡@

3.95

¡@

1.41

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2.52

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172.50

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169.94b

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0.55

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3.81

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1.42

¡@

2.39

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161.74

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197.28a

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0.48

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3.72

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1.43

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2.29

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5.80

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3.94

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1.84

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1.88

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1.74

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1.88

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Means of the same row with different superscript letters are significantly different (P<0.05)¡C

        ¥xÆW¤gÂû¤§T-BIL¡ATP¡AABL¡AGLO¤§¿@«×§¡¥¼¨ü¶ÀÄT¬r¯À³B²z¤§¼vÅT¡AÅ㨣¨xŦ¥\¯à³à¥¢¶ÈÄݦ­´Á¡A¬G¹ï¤W­z¤§¥\¯à§¡¯àºû«ù¥¿±`¡F¦ý­Y§ð¬r®É¶¡¦A¥[ªø¡A«h¤W­z¿@«×§¡¥i¯à¦]¨xŦ¯×ªÕ»W¿n¤§¼vÅT¦Ó¨Ï¿@«×­°§C¡CLanza et al. (1980)¤ÎTung et al. (1972)¸ÕÅçÅã¥ÜTP¤ÎALB¤D°»´ú¥Õ¦×Âû¹ï¶ÀÄT¬r¯À³Ì±Ó·P¤§«ü¼Ð¡C¦ý¦¹¤@½×ÂIÅãµM¨Ã¤£¾A¥Î©ó¥xÆW¤gÂû¡C

        ¶ÀÄT¬r¯ÀÁý¹}¥xÆW¤gÂû1¡ã5¶gÄÖ«á¡A¸g¤Á¤ùÀˬdµo²{0¡ã800ppb³B²z²Õ¤§¥xÆW¤gÂû§¡¥¼¨£¦³Ãö¨xŦ¯fÅܤ§µo¥Í(¬G¦¹¤£¥Z¥Ü)¡CÅã¥Ü¥xÆW¤gÂû¤§¨xŦ²Õ´§ÎºA¤W¥¼¨ü¯}Ãa¡CªL(1984)«ü¥X­PÀùª«¤§­PÀù§@¥Î¨ú¨M©ó¥NÁ¬¡¤Æ¤Î¥NÁÂ¥h¬r¨â¶Õ¤O¤§®øªø¡C¥Ñ©ó¶ÀÄT¬r¯À¬°±j¤O¤§­PÀùª«½è¡AÄÝ«D·¥©Êªº¯×·»©Êª«¡A¬°§Q©ó±Æ¥XÅé¥~¡F¹E¦æ¥NÁ¬¡¤Æ(metabolic activation)¡A²£ª«¥D­n¬°¶ÀÄT¬r¯ÀÀô®ñ¤Æª«(aflatoxin epoxide)¡AÄò¥Ñ²É½uÅé²V¦X¥\¯à®ñ¤ÆúA(mixed funcation oxidase)¶i¦æ¥NÁÂ¥h¬r(metabolic detoxification)±NÀô®ñ¤Æª«¤§­PÀù©Ê®ø°£¡C¸ÕÅçµ²ªGµo²{»OÆW¤gÂû±N¬r¯À¦æ¥NÁÂ¥h¬r¤§³t²v¤j©ó¥NÁ¬¡¤Æ¡A­P¶ÀÄT¬r¯À¹ï¨xŦ²Õ´¤£­P¦³­«¤jªº¯}Ãa¡A¦ý¦]GPT¬¡©Êªº´£°ª(ªí4)ÅãµM¨x²Ó­Mªí­±¤v¨ü¬r¯À¤§·l¶Ë¡C

        ¥Ñ¤W­z¤§µ²ªGÂk¯Ç±oª¾¡A¦å²G¥Í¤Æ¤Î¨xŦ­«¶q¦b°µ¬°¶ÀÄT¬r¯À¤¤¬r«ü¼Ð¤W¬°³Ì±Ó·P¡C¬G­Y²{³õºÃ¦³Âû°¦¶ÀÄT¬r¯À¤¤¬r®É¡A´ú©w¦å²G¤¤GOT¡BGPT¬¡©Ê¥i°µ¤@«ÈÆ[¤§¶EÂ_¡A°t¦X¹}®Æ¤¤¶ÀÄT¬r¯À§t¶q¤§ÀË´ú¡A¥i°µ¬°¹w¨¾¶ÀÄT¬r¯À¯gµo¥Í¤§­«­n±¹¬I¡C

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        ¥»¸ÕÅ礧§¹¦¨¡A»X¥xÆW¾i½Þ¬ì¾Ç¬ã¨s©Ò³¯¬ü¶³¤Î§d±Ó®S¤p©j¤§¨ó§U¶ÀÄT¬r¯À¤ÀªR»P¤¤¿³¤j¾ÇÃ~Âå¨t³¯¤T¦h¦Ñ®v¤§«ü¾É¨xŦ²Õ´¤Á¤ù¡A©M¯b²£¨t§õ²W¥Õ¦Ñ®v´nÃظÕÅçÂû°¦ÂÔ¦¹»xÁ¡C

°Ñ¦Ò¤åÄm

        1.¨H²K´I¡BÄY®a²M¡B³¢©¾¬F¡A1987¡C¹}®Æ¤¤§t§C¿@«×¶ÀÄT¬r¯À¹ïµ£¤lÂûªº¼vÅT¡C¤¤¯b·|»x¡C16 (3-4)¡G63-71­¶¡C

        2.¨H²K´I¡BÄY®a²M¡B³¢©¾¬F¡A1988¡C¹}®Æ¤¤§t§C¿@«×¶ÀÄT¬r¯À¹ï¤gµfÀn¤§¼vÅT¡C¤¤µØ¹A¾Ç·|³ø¡C142:67-77­¶¡C

        3.§d¾ÇµØ¡BÄY®a²M¡B³¢©¾¬F¡B¨H²K´I¡A1990¡C¹}®Æ¤¤§t§C¶q¶ÀÄT¬r¯À¹ï¤p«¬¦³¦â¦×Âûªº¼vÅT¡C¤¤µØ¹A¾Ç·|³ø¡C150¡G66-73­¶¡C

        4.ªL¤¯²V¡A1984¡C¤Æ¾Ç­PÀù§@¥Î¤§¤À¤l¾÷¨î¡C°ê¬ì·|¥Íª«¬ì¾Ç¬ã¨s¤¤¤ß¥Íª«§Þ³N±MÃDºtÁ¿½×¤å±M¥Z¡C11:181-196­¶¡C

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        7.Campbell, M. E., J. D. May, W. E. Huff and J. A. Doerr, 1983. Evaluation of immunity of young brolier chickens during simultaneous aflatoxicosis and ochratoxicosis. Poult. Sci. 62:2138-2144.

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The Effect of Dietary Aflatoxin Content on Taiwan Country

Chickens During 1-5 Weeks of Age

Yeong-Shiang Cheng1, Der-Fang Jang2, Jih-Fang Wu3

1Department of Animal Science, National I-Lan Institute of Agriculture and Technology.

2Deparment of Animal Science, National Chung-Hsing University.

3Pig Research Institute of Taiwan.

Abstract

        The purpose of this experiment was to investigate the effect of aflatoxin on growth performance, blood biochemistry. organ weight, and liver histopathology of Taiwan country chickens (TCC) during 1-5 weeks of age.

        The chickens come from B¡ÑDL strain bred by the Department of Animal Science, National Chung-Hsing University. According to their body weight the chickens were alloted to 5 treatment groups randomly with two replicates Chickens were fed with cornsoybean meal basal diet containing 22.5¢H crude protein, 3100 Kcal¡þkg metabolizable energy and supplemented with aflatoxin B1 0, 100, 200, 400, or 800 ppb.

        The parameters determined were weight gain¡Bfeed efficiency¡Bliver weight¡BGOT¡BGPT¡Btotal bilirubin¡Btotal protein¡Balbumin¡Bglobulin of serum¡Bhematocrit¡Bviceral weight¡B and liver histopathology examination.

        The results showed that the body weight gain, feed consumption, and feed efficiency during 1-5 week of age were not significantly different among treatment groups. The liver weight of the 800 ppb treatment group decrease significantly (P¡Õ0.05) compared to the other groups, but the liver total lipids content and liver weight¡þbody weight ration were not affected by aflatoxin supplement.

        Serum GOT, hematocrict, total bilirubin, albumin, and globulin were not significantly different among dietary treatments, but only GPT activity of the 800 ppb treatment group was significantly increased (P¡Õ0.05). Liver histopathology revealed no aflatoxicosis histopathology.

        In conclusion, TCC has high tolerance for aflatoxin B1. The growth performance of TCC is not influenced by feeding diet containing aflatoxin B1 up to 800 ppb.

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(Key Words:Aflatoxins, Taiwan Country Chickens, Growth Performance, Blood Biochemistry)   

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