MySheen

Effect and Analysis of forced molting in Chicken

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, (1) Mortality during forced molting the measures such as fasting, stopping water and reducing light in the forced molting scheme are very stressful to chickens, and the mortality rate of chickens is a response to test whether the stress is moderate or not. Generally speaking, the mortality rate during the implementation of forced molting is no more than 3%, and it is more appropriate to control the mortality rate within 5% at the end of the recovery period. (2) the weight loss rate of hens indirectly reflects the fat consumption in the fallopian tube. Only when the rate of weight loss reaches 25% to 30%, can you lose.

(1) Mortality during forced molting the measures such as fasting, stopping water and reducing light in the forced molting scheme are very stressful to chickens, and the mortality rate of chickens is a response to test whether the stress is moderate or not. Generally speaking, the mortality rate during the implementation of forced molting is no more than 3%, and it is more appropriate to control the mortality rate within 5% at the end of the recovery period.

(2) the weight loss rate of hens indirectly reflects the fat consumption in the fallopian tube. Only when the weight loss rate reaches 25% to 30%, can the fat deposited in the fallopian tube be basically exhausted, which is very important to improve the eggshell quality during the second laying period.

(3) the stripping speed of the main wing feathers when the laying rate is restored to 50%, a random sample of 30 chickens is selected. If more than half (5) of the 10 main wing feathers have been replaced, it shows that the forced molting is successful. Generally speaking, in the first 7-10 days of forced molting, the body feathers are mainly changed, and the main wing feathers begin to be replaced in 10-20 days. More than 70% of the main wing feathers are replaced within 50 days, and new feathers begin to grow more than 10 days after molting.

(4) body weight recovery and re-opening generally it is more appropriate to restore body weight to 80%-85% of the original 10 days after feeding, and to 85%-90% 50% in 20 days and 95% to 100% in 60 days. Generally speaking, the time from the implementation of forced molting to the recovery of egg production rate to 50% is 50-60 days.

 
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