Effects of deficiency of some vitamins in the diet of mother hens on the hatching power and the quality of the produced chickens:
Vitamin A: premature death of the fetus in the first 48 hours and imbalance of the circulatory system.
Vitamin D3: the possibility of producing chickens with soft bones, usually with some defects in the eggshell, such as high porosity
Vitamin E: the possibility of observing encephalomalacia and the occurrence of water seepage under the skin
Riboflavin: high fetal losses at the age of 9 to 14 or 17 to 21 days, emergence and complexity of feathers and fingers, symptoms are observed after 3 to 5 days.
Pantonic acid: skin bleeding in hatched embryos
Biotin: reduction of hatch without loss of egg production, the possibility of skeletal lesions and crooked beak
Vitamin B12: Fetal losses around days 8 to 14 with the possibility of growth, twisted fingers and short beak.
Thiamine: Fetal losses occur early in the period or on days 19 to 21. Despite the small number of incomplete chicks, a large number of dead chicks are seen in the hatchery tray, and hatched chicks also show high mortality in the first 10 to 14 days. With poor quality fish powder, they also cause thiamine deficiency.
Niacin: fetal losses at 8 to 17 days, which of course also depends on the level of tryptophan in the diet.
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