Comparative study of three additive s on broilers fed mold2contaminate d fe e d

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1 2007,12 (3) :49255 Journal of China Agricultural University (, ) 180 8, 3 ( ),, ( P < 0105) ; ( P < 0105), ( P < 0105), 7 IgA IgG ( P < 0105), ( P > 0105) ( P < 0105),3 ; ; ; ; S ; S (2007) A Comparative study of three additive s on broilers fed mold2contaminate d fe e d He Xuejun, Zhang Niya, Wei Jintao, Xu Xuemei, Qi Desheng (College of Animal Science and Technology, Huazhong Agricultural University, Wuhan , China) Abstract One hundred and eighty 82day2old avian broilers were us ed to investigate effects of is oflavone (SI), ben2 tonite and glucomannan, on growth, immunity function and tibia. Fee d intake and average daily weight gain were signif2 icantly decreas ed but the feed/ gain ratio increas ed significantly ( P < 0105) in broilers fed moldy corn diets than thos e fed less moldy corn diets. Both feed intake and average daily gain increas ed significantly while the feed/ gain ratio was decreas ed s ubstantially in broilers by adding 100 and 200 mg/ kg SI. Als o, s erum IgA and IgG concentrations increas ed significantly ( P < 0105). The average daily gain in broilers was significantly ( P < 0105) increas e d by a dding 0105 % bentonite or 0105 % glucomannan. However, calcium and phosphate levels in tibia were significantly decreas e d by a dding 0105 % bentonite. In conclusion, s oybean is oflavones more significantly increas e d growth of Avian broilers when added to a moldy corn diet than glucomannan or bentonite. Key words mycotoxins ; feed additive ; broiler chickens ; growth p erformance ; s oybean is oflavones 25 %, [122 ], ( ) ( ) ( ) ;,, : : (2006AA201C23) :, ;,,,, E2mail : hzau. edu. cn

2 , [3 ],,,,,, ( ), [425 ], ( soybean isoflavones, SI),,,,, [627 ], [8 ], [9 ], 3, %( ), ( daidzin) 5127 %, (glycitin) 1174 %, (genistin) 5191 %, ( daidzein ) %, ( glycitein ) 0143 %, (genistein) 619 % ( ) ; ; ( 22 32, 67 % 92 %) 112 1, 1, , 5, 6 1 : ( ) ; 2 :10 % ( ) ; 1 : mg/ kg ( ) ; 2 : mg/ kg ( ) ; ; 3 : % ( ) 4 : %( ) B1 ( aflatoxins B1, AFB1), (zearalenone, ZEN) (deoxynivalenol,don), g/ kg ( GB/ GB/ T GB/ T , Sigma ) 3715 g/ kg AFB1 125 g/ kg ZEN 250 g/ kg DON, 12 %, 1 1 Table 1 Ingredient and nutrient composition of diets % CP EE Ca TP NaCl Lys Met + Cys ME(MJ/ kg) : % ;,

3 3 : , 6, 7 14,11 7, 2 1, 2,, 114 1) 4 7, 2 2) 4 7, 2, ;,, ;, (65 2),, : EDTA ; : ( GB/ T ) ; : 3) 4 7, 2, ;,, ; 1,, - 20 IgA IgM Ig G IgA IgM Ig G, 115 SAS, Duncan, P < 0105, ( M SD) (AD G) (ADFI) ( F/ G) 2 2, ( 1) ( P < 0105), ( P < 0105) 2 Table 2 Effects of different feed additive on AD G, ADFI and F/ G of broilers / g a a a a a a 2 4 / g ADG/ (g/ d) ADFI/ (g/ d) F/ G 5 7 / g ADG/ (g/ d) ADFI/ (g/ d) F/ G 2 7 ADG/ (g/ d) ADFI/ (g/ d) F/ G a c ab a bc bc a c ab a bc c a c ab a c bc b a b b ab ab a d abc ab bc c a c ab ab ab bc a c ab ab bc bc a a a a a a a d abc ab bc c a d bc ab cd cd b a b b ab ab :, ( P < 0105) 1 ; 2 10 % ; mg/ kg ; mg/ kg ; % ; % 1) 2, ( P < 0105),

4 % %, 1 ( P > 0105) 3 4 2, ( P > 0105) 5 7, ( P < 0105 ), % % % ; 4 2, ( P > 0105), 2 2) ( P < 0105 ), % %, ( P > 0105) ; ( P > 0105) ( P < 0105), % 8134 %, ( P > 0105) ( P < 0105), 2 3) ( P < 0105) 1 ( P > 0105) 3 4 2, ( P > 0105) ( P > 0105) 2, 1 2 ( P < 0105) 212 1) 3,4, 4, ( P < 0105), 2, ( P > 0105) 7, ( P < 0105) 1 2 ( P > 0105), 4, 1 2 ( P > 0105) 2) Table 3 Effects of differentfeed additive on tibia / g 7 / g ab c ab a bc c ab ab ab a ab b a bc a a ab c ab ab a a a b 4 Table 4 Effects of different feed additive on the mineral elements tibia Ca/ % P/ % Fe/ (mg/ kg) Cu/ (mg/ kg) Zn/ (mg/ kg) 7 Ca/ % P/ % Fe/ (mg/ kg) Cu/ (mg/ kg) Zn/ (mg/ kg) a ab a a ab b ab bc a ab ab c a a a a a a a a a a a a ab ab a a ab b a ab a a ab b ab ab a ab ab b a a a a a a a a a a a a ab ab a a b b

5 3 : 53 ( P > 0105), ( P < 0105), 3, 2 ; 1 2, 4 ( P < 0105), 4,7 ( P > 0105), 4, 1 ( P < 0105), 3 1 2, ( P > 0105), 1, 2 4, 213 1) 5,, 4 ( P > 0105), 7 3 ( P < 0105),3 5 Table 5 Effects of different feed additive on immune organs 2) 5,4 IgM Ig G ( P > 0105), 2 3 IgA 2 ( P < 0105), 1 ; ( IgA) / (g/ L) ( IgM) / (g/ L) ( IgG) / (g/ L) 7 ( IgA) / (g/ L) ( IgM) / (g/ L) ( IgG) / (g/ L) a a a a a a a a a a a a a a a a a a a b ab a a ab a a a a a a a a a a a a c ab bc bc a bc a a a a a a a a a a a a a b a a a ab a a a a a a ab c ab a ab b : 1 4 2, ( P > 0105) 7, IgM ( P > 0105), IgA Ig G 2 ( P < 0105), 4 2 ( P > 0105),3 IgA Ig G 3, ( P < 0105) 3,,, 1), 0105 % ( P < 0105), ( P < 0105),,,,,

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