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OJVR

Online Journal of Veterinary Research

(Including Medical and Laboratory Research)

Established 1994
ISSN 1328-925X

 

 Volume 25 (7):481-486, 2021.


Effect of bentonite and magnotox on immune and biochemical markers,

and cecum flora in Ross 308 broilers fed aflatoxin-contaminated feed.

 

Payman Mahmoudi Nasr1*, Kaveh Jafari khorshidi2

 

1PhD Student in Poultry Nutrition, Department of Animal Science, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran

2Department of Animal Science, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran

 

ABSTRACT

 

Mahmoudi Nasr P, Khorshidi KJ., Effect of bentonite and magnotox on blood immune and biochemical markers and cecum flora in Ross 308 broilers fed aflatoxin-contaminated feed, Volume 25 (7):481-486, 2021. Groups of 15 eight day-old male Ross 308 broiler chicks each were fed 1 or 2mg/kg Aspergillus flavus with or without 0.5% bentonite and/or Magnotox daily over 42 days. Controls consisted of birds fed basal diet or without aflatoxin (0 mg/kg aflatoxin). Blood and fecal samples were taken at 24 and 42 days. Compared with basal diet controls, by day 24 of feeding, we found increased serum protein in birds given bentonite (~18%) but large declines (~-32%) in those given 2mg/kg aflatoxin whereas other diets had no effect on any parameter. By 42 days, bentonite and magnatox increased serum albumin ~9% (P <0.01) but reduced AST ~10% P < 0.007) whereas 2mg/kg aflatoxin reduced serum protein and albumin ~-32% but enhanced AST ~25% (P < 0.0001) by day 42 compared with aflatoxin controls. However, by 42 days, mixed diets with bentonite, magnatox with 1mg/kg aflatoxin boosted serum proteins and reduced AST except in birds given 2mg/kg aflatoxin. Magnatox may have boosted antibody ~6% against infectious bronchitis whereas bentonite reduced ~-19% them (P < 0.02). Aflatoxin appeared to reduced antibody against bursal disease by ~-10-12% (P < 0.02). We found no effect by any other mixed diet. Our findings suggest that binders reduced effects of 1mg/kg aflatoxin on serum liver enzymes and boosted proteins especially by 42 days. However the binders had no effect on the higher dose of 2mg/kg aflatoxin. Aflatoxin reduced serum protein and albumin in chickens fed aflatoxin contaminated feed. We found no effect on bacterial numbers in cecum suggesting that our binders had no effect on microflora

 

Keywords: Aflatoxin, Bentonite, Broiler chicken, Blood and immunity profile, Magnotox


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