ªí¤@
¸Õ Åç
°ò ¦
¤é ³
²Õ ¦¨
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 ¥NÁÂ¯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. |
||||||
¶µ
¥Ø
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«¡þÅ髤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. |
||||||
¶µ
¥Ø
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«¡þÅ髤ñȮɡA¦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¤ÆȤ§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¤ÆȬ°«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. |
||||||
¶µ
¥Ø
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 ¡@ 2.52 ¡@ |
172.50
¡@ 169.94b ¡@ 0.55 ¡@ 3.81 ¡@ 1.42 ¡@ 2.39 ¡@ |
161.74
¡@ 197.28a ¡@ 0.48 ¡@ 3.72 ¡@ 1.43 ¡@ 2.29 ¡@ |
5.80
¡@ 3.94 ¡@ 1.84 ¡@ 1.88 ¡@ 1.74 ¡@ 1.88 ¡@ |
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 |
¥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 »x Á ¥»¸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 5.Avider, Y., E. Bogin and S. Soback, 1986. Fatty liver syndrome in farm animalsbiochemical and pharmacological aspects. lsr. J. Vet. Med. 42:318-323. 6.Bryden, W. L., R. B. Cumming and A. B. Lloyd, 1980. Sex and Strain responses to aflatoxin B1 in the chicken. Avain Pathol. 9:539-550. 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. 8.Doerr, J. A. and P. B. Hamilton, 1981. Aflatoxicosis and intrinsic coagulation function in broiler chickens, Poult, Sci. 60;1406-1411. 9.Doerr, J. A., W. E. Huff, C. J. Wabeck, G. W. Chaloupka, J. D. May and J. W. Merkley, 1983. Effect of low level chronic aflatoxicosis in broiler chickens, Poult. Sci. 62: 1971-1977. 10.Donaldson, W. E., H. T. Tung and P. B. Hamilton, 1972. Depression of fatty acid synthesis in chick liver (Gallus Domesticus) by aflatoxin. Comp. Biochem. Physiol. 41:843-847. 11.Giambrone, J. J., D. L. Ewert, R. 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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. ¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w¢w (Key Words:Aflatoxins, Taiwan Country Chickens, Growth Performance, Blood Biochemistry) ¡@ |