Effect of broiler breeder's body weight after induced molting by zinc oxide on egg production, fertility, hatchability and chicks weight

Volume 18 , Issue 1 , March 2016 , Pages 21-28

Authors

¹ Presidency of Halabja University - Halabja University

This study investigates the effect of different body weight of Arbor Acres broiler breeder

hens after molting on product performance. 296 hens, the birds were molted by zinc

oxide with or without supplementation of vitamin C and the body weight of the birds

after molting at 361 days old of age, were randomly divided into eight treatments (T‎) of

body weight: [T1(3.783), T2(3.714),T3( 3.458), T4(3.428), T5(3.380),T6( 3.318),

T7(3.276) and T8(3.253) ±50]. Weekly eggs/hen, hen day production and egg mass

revealed significant (p<0.05) differences between different body weights of hens. Hens

in molting significantly had higher values of these traits compared with non-molting

hens. Effect of body weight on Fertility percentage of eggs did not differ while

hatchability of fertile eggs and hatchability of total eggs affected by the different

treatments with the superiority of molting treatments on non-molting treatments. Results

show no significant effect of body weight on egg weight and chick’s weight.

Statistics