mycotoxins in poultry feeds · 2017. 10. 3. · mycotoxins in poultry feeds elsayed mickdam south...
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MycotoxinsinPoultryfeeds
ElsayedMickdamSouthValleyUniversity,FacultyofVeterinaryMedicine,
Qena,Egypt
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Mycotoxinsq Definitions:
Mycotoxins are a diverse group of toxic secondary metabolites produced by certain moulds when they grow on agricultural products under certain condition
q Mycotoxicoses : Disease condition caused by consumption of contaminated
feed with Mycotoxins.
q Mycotoxins are not essential for mould growth.
q According to FAO about 25% of the world’s crop harvests are contaminated by Mycotoxins.
SouthValleyUniversityFacultyOfVeterinaryMedicine
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BriefHistoryofMycotoxinandMycotoxicoses
• Horses in the Soviet Union from 1931 to 1940 (stachybotryotoxicosis due to feeding moldy hay).
• 1940 to 1950, several deaths of poultry in
USA (due to feeding moldy feed)
SouthValleyUniversityFacultyOfVeterinaryMedicine
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• In 1960, a dramatic mycotoxicosis of turkeys occurred in England called turkey X disease
• Aflatoxin was discovered as the etiological agent
of this disease.
SouthValleyUniversityFacultyOfVeterinaryMedicine
BriefHistoryofMycotoxinandMycotoxicoses
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• In the last 27 years, ochratoxin A, trichothecenes, deoxynivalenol and nivalenol were shown to be etiological agents for mycotoxicoses of man and livestock.
BriefHistoryofMycotoxinandMycotoxicoses
SouthValleyUniversityFacultyOfVeterinaryMedicine
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Mycotoxins
SouthValleyUniversityFacultyOfVeterinaryMedicine
• Chemical compounds produced by some fungi • Contaminate grains, food, and feed worldwide • Aflatoxins were the first mycotoxins discovered
• Hundreds now known worldwide • 30 are significant health hazards
• 5 principle mycotoxins affect cereal grains (corn, wheat, rye, barley, oats) • aflatoxins, fumonisins, ochratoxin A,
deoxynivalenol (vomitoxin), and zearalenone
Gibberella ear rot caused by Fusarium graminearum (Gibberella zeae ) Source: Pioneer Hi-Bred, Intl
Fusarium head blight http://www.ars.usda.gov/Main/docs.htm?docid=9765
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CycleofFungalDisease
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SouthValleyUniversityFacultyOfVeterinaryMedicine
Amlaninterna+onalmycotoxinsandpoultryareviewforpoultryproducers
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Thecase
q DifferentfarmsinDeltaregionEgypt
SouthValleyUniversityFacultyOfVeterinaryMedicine
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Thecase
Case History • 20-25 days old chicks (15000 bird) • Birds suffer from decrease feed intake with poor conversion • Decreased feed consumption • Increase mortality • Paralysis and lameness. • Characteristic mouth lesions
SouthValleyUniversityFacultyOfVeterinaryMedicine
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q Liver and kidneys were enlarged and pale. q Shrunken firm nodular liver
SouthValleyUniversityFacultyOfVeterinaryMedicine
PM
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q Bile distended gall bladder and hemorrhages
SouthValleyUniversityFacultyOfVeterinaryMedicine
PM
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Treatment
SouthValleyUniversityFacultyOfVeterinaryMedicine
Prevent further exposure
Changing of the diet
Using mycotoxin
binder
improvement in body weight, Reduction in F.C.R. & Decline in mortality rate
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References• Ramos Girona, A. J., Sillué, S. M., & Almenar, V. S. (2011).
Micotoxinas.Introducciónhistórica.RamosGironaAJ(ed.).• Micotoxinas y micotoxicosis, Madrid, AMV Ediciones, 1-18.
Bakırdere, S.,Bora, S.,Bakırdere,E.,Aydın, F.,Arslan,Y.,Komesli,O., et al. (2012). Aflatoxin species: their health effects anddetermina+onmethodsindifferentfood-stuffs.
• Central European JournalofChemistry, 10(3), 675-85.Atanda, S.A., Aina, J. A., Agoda, S. A., & U. OE, P. PO. (2012). MycotoxinManage-ment inAgriculture:aReview. JournalofAnimalScienceAdvances, 2(Suppl. 3.1), 250-60. [4] Moss, M. O. (1996).Mycotoxins.MycologicalResearch,100(5),513-23
• Akande, K., Abubakar, M., Adegbola, T., & Bogoro, S. (2006).Nutri+onalandhealthimplica+onsofmycotoxinsinanimalfeeds:Areview.PakistanJournalofNutri+on,5(5),398-403.
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