ZOO510 Final Term Past Papers by Zainab Arshad

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ZOO510 Economic Zoology · Final term 120 to 239 · B- Vitamin D:

 MCQS: Vit.D required for bone formation, egg production, reproduction & prevention of rickets.  Def. symptoms:poor growth, lameness & rickets.  Poultry do not exposure to sunlight, ration must suppl. With vit.D.

C- Vitamin E: which disease caused by vitamen E?

 Vit.E in vegetable is not readily available as in oil concentrates.  Answer: Vit.E essential to prevent

encyphalomalacia or crazy ( softening of

the brain) chick disease.

D- Vitamin K:

 MCQs:Def. of vit. K delay clotting time of the blood & produce serious hemorrhage  All mixtures should be suppl. With vit. K  Treatment by sulfonamide( man made synthetic drugs) vit. K req.

E- Riboflavin:

 Def. of vit.B2 curled-toe paralysis, dwarfism

(Dwarfism in chickens is an · inherited condition found · in chickens consisting of a significant

delayed growth, resulting in adult individuals with a distinctive small size in comparison with normal specimens of the same breed or population.) & degeneration of nerve trunks.  Requirement: Broilers & breeder

4. 4mg/kg

Layers 2.5 mg/kg ration

dwarfism and toe · paralysis · F- Thiamin:

✓ Def. of thiamin nerve deg., convulsion & heart abnormalities.

G- Niacin:

 Def. of niacin inflammation of tongue & mouth cavity (black tongue).  Young chick required niacin more than adult due to less bacterial action synthesis.

H- Vit.B12: What are affects caused by Def. of

vita B12?

 Animal proteins are good sources of vit.B12.  Answer: Def. of vit.B12 irritability, poor feathering & poor hatchability.