A nutritional deficiency may be due to a nutrient being omitted from the diet, adverse interaction between nutrients in otherwise apparently well-fortified diets, or the overriding effect of specific antinutrients.

1. Mineral Deficiency
Symptoms in Poultry
ANN 211

2. INTRODUCTION
 Minerals are important in poultry nutrition
 Deficiency cause economic lose
 Toxicity also cause sever effects

4. CALCIUM
 satisfactory bone formation cannot occur – rickets
 calcium in the bone is withdrawn and not replaced- osteomalacia
 In hens, deficiency symptoms are
 soft beak and bones,
 retarded growth and bowed legs,
 the eggs have thin shells or there is production of leathery eggs.

6. Tibial Dyschondroplasia (Osteochondrosis)
 abnormal cartilage mass in the proximal head of the tibiotarsus.
 swaying motion or stiff gait.
Cage Layer Fatigue
 High-producing laying hens- in cages
 just after the period of peak egg production
 fracture of the vertebrae that subsequently affects the spinal cord
 impaired calcium flux related to the high output of calcium in the eggshell
Cartilaginous core in the area of the growth plate
in a young chicken with tibial dyschondroplasia

8. PHOSPHORUS
 rickets
 osteomalacia
along with vit. D

9. Manganese
• decreased egg production
• Reduced growth rate, egg production and eggshell thickness
Perosis
 enlargement and malformation of the tibiometatarsal joint
 thickening and shortening of the leg bones
 slippage of the gastrocnemius tendon- SLIPPED TENDON
 Ataxia
 Star gazing posture
Chondrodystrophy
 Deficiency in breeder
 shortened, thickened legs and shortened wings
 parrot beak

10. Section Header Layout

11. Iron and Copper
 severe anemia with a reduction in PCV
 loss of pigmentation in the feathers
 rupture of the aorta.

12. Iodine
 GOITER
 decreased output of thyroxine from the thyroid gland
 enlargement of the thyroid gland
 hens to cease laying and become obese
 abnormally long, lacy feathers

14. Sodium & Chloride
 Ataxia
 hypokalemia

15. Selenium
 Exudative diathesis
 unthriftiness
 ruffled feathers
 Oedema

16. Faslu Rahman CK
Neeraj TK
Al yeseh usman