what is moulting and its types and phases..

2.  Molting is the process of shedding and renewing feathers
 During the molt the reproductive physiology of the bird is
allowed a complete rest from laying
 the bird builds up its body reserves of nutrients.

3. I. Natural molting
II. Artificial molting

4.  Force molting is a practice adopted for rapid molt.
 with drawl from feed for 7-14 days.
 hen’s reproductive tract regress.
 body weight reduce up to 30%.
 Autumn season

5.  regress the reproductive system of the hen.
 to increase the production
 egg quality
 profitability
 Complete regression 14-17 days.

6.  Pre-molt phase
 Fasting and weight loss phase
 Return to production phase

7.  constant lighting
 Vaccination completed
 Health status of the birds
 give 45kg-90kg oyster shell in 1000kg of feed.

8.  monitor weight loss very accurately
 with drawl the feed for 7-14 days
 strains influence on weight loss
 season also influence on weight loss
weight loss up to 30%
 weight loss depend upon the season

9.  Feed appropriate nutrient levels
provide proper lighting
production 10-30% less than first cycle
 45kg feed per hen

10.  Age of flock
 Nutrition
 Lighting
 Season of the year
 Flock history

14. Days Light period Feed Water
Before 7 days 24 100g Ad lib
During 1-10 8-10
11-30 12 50-40g corn
After 30 Increase 1.5 h 150g mash
to maintain
16

15. cheaper to molt than to buy new pullets
 saving of money,transport,time
 molted birds are hardier and not to prone disease
 high producing, efficient birds

16. birds continue to eat but remain unproductive
 slaughter after two years of laying meat not tender to eat
 too few birds retained to provide sufficient eggs

17. Table
Lighting Schedule
For Open Houses
Days after Feed For Closed Houses (Light Molts Starting June1-Nov. Molts Starting Dec. 1-
Withdrawal Tight) 30 May 31
0-20 12 hour 12 hours or natural Use natural day
day length* on day length* on 21st
of feed withdrawal, day or 12 hours,
whichever is whichever is
longer. longer.
21 13 hours Increase day length by 30 to 60
minutes to total at least 13 hours
24 13.5 hours Increase day length by 30 minutes if
the increase on Day 21 was less than
60 minutes, to total at least 13.5 hours.
28 14 hours Increase day length by 30 minutes to
total at least 14 hours.
35 Resume normal lighting program. Day length should be at
least equal to that before the molt, totaling at least 15
hours.