56

16A

16A

IRAN AGRICULTURAL RESEARCH

V.2,N.2

(1983)

P.115-124

Egg compoponent,Native hens,Egg weight,Yolk weight,Alhumine weight,Egg alhumine,Exotic breed,Fars,Deep litter

To studty changes in the egg components of the native fars chickens,a total of 851 eggs were collected over a 15-day period from the hens of approximately similar ages originated from four regns of the Fars province.Average weights of the egg (44.o g),albumen (14.3), and yolk (14.2 g)were lower than the published values for exotic pure-bred chickens.Some native hens of the middle Eastern region, and/or their crosses with exotic pure breeds.Albumen percentage of egg weight (12.4,),yolk percentage of egg weight (32.4,),and yolk percentage of albumen (59.0,)were higher in the present study as compared wit the publuished results for the native and purebred chickens.The egg,albumen,shell,and total liquid weights as well as the shell percentage of liquid weight were higher for the caged birds in comparison with the deep-litter hens.The average yolk weights were not different between the two systems,but yolk percentage of egg was lower in the caged hens as compared with the deep-litter ones (p<0.01).There were no differences in these characteristics amongst the birds from different regions.

چ

76/06

Ghasemi

16A