Important facts to remember
- EDTA enhance zinc absorption in chicks
- Probiotics : Live microorganism that has health benefit on the host.
- Antibiotics: Substance produced by microorganism having bacteriostatic or bactericidal properties.
- Requires 4 gm/ ton of feed.
- Antifungal additives : Sodium propionate, Sodium benzoate , Acetic acid and copper sulphate.
- Anticoccidial drugs : Bituran supplement, Amprol 25% nitrofurazone, furazolidone, etc.
- Anthelmintics drugs: Vermifuges
- CP ration = Metabolic energy in k Cal per kg diet / % protein in the diet.
- Brooding: External evidence of maternal instinct and is dominant sex linked character.
- Light breeds such as leg horn are less broody than general purpose breeds such as Plymouth rocks.
- Precocity means sexual maturity.
- Persistency : Tendency to continue laying eggs up to a longer time.
- Optimum size of hatching eggs is 53 gm i.e. 50-55 gm of chicken., 65-70 gm for duck and 80-85 gm for Turkey.
- Egg having a white to yolk ratio of 2:1 hatches better than eggs with wide or narrow ratios.
- Excessive shaking leads to tremulous air cells “ leads to lower hatchability.
- Fertility and hatchability of eggs is low in summer and early spring.
- One male is usually run with 10-12 female.
- Best temperature for hatching egg is 50-55 0
- Incubator temperature :
a) 101 0F : 1st week
b) 102 0F : 2nd week
c) 103 0F : 3rd week
- When CO2 in air exceeds 2%, hatchability of egg declines.
- Incubated egg should be candled on 7th and 14th