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Anti-Nutritional Factors In Feedstuffs (Classification of Natural…
Anti-Nutritional Factors In Feedstuffs
Chemical structure
PROTEINS
:warning: Protease and
Amylase inhibitors
:explode: bind & inactive digestive enzyme trypsin
:warning:Lipoxidase
:explode: thiamine deficiency
CARBOHYDRATES
:warning: Xylose
:explode: reduced growth and eye cataract in pigs & poultry
GLYCOSIDES
usually bitter substances
:warning: Coumarin
:explode: Vit -K deficiency
:warning:Cardiac glycosides
:explode: Potent stimulator of heart rate.
LIPIDS
:warning: erucic acid
:explode: myocardial infarction in rats
ALKALOID
usually bitter and are more toxic
:warning: Quinolizidine
:explode: Acute poisoning in sheep and
teratogenic effects in calves
:warning:Piperidine
:explode: affect the central nervous system
DEFINITION
Substance which under practical circumstances an impair some aspect of animal metabolism & produce adverse biological or economic effects in animal production.
Classification of Anti Nutritional Factors:-
:checkered_flag: Chemical structure
:checkered_flag: Occurrence in feeds
:checkered_flag: Site of action and/ or metabolic effect
Anti-nutritional factors
:pen: Cyanogens
:pen: Saponins
:pen: Tannins
:pen: Gossypol
:pen: Mimosine
Classification of Natural Toxicants
(by
site of action and/or metabolic effect)
:fire:
Eye
:explode: blindness
:fire:
Reproductive
system
:explode: Estrogenic effect Female infertility
:fire:
Circulatory system
:explode: loss of blood in extremeties
:fire:
Liver
:explode: Irreversible liver damage cirrhosis
:fire:
Digestive tract
:explode: bloat Irritation and damage to
the intestinal mucosa
:fire:
Mouth
:explode: cause irritation in mouth & throat
Analysis of anti-nutritional factors in
feedstuffs
Extracts of samples (feedstuffs)
:red_flag: The samples was added the aqueous ethanol The samples was added the aqueous ethanol
:red_flag:The extract was added diethyl ether and pH was adjusted to 4.5 by adding NaOH
:red_flag: The samples was added the aqueous ethanol
Samples in spectrophotometer
The absorbance of the reaction mixture of each sample was measured at 760nm spectrophotometrically