Abstract
The experiment was conducted to find out the relationship between number of eggs in a cage and egg breakage. The birds were divided into three groups; the group gathering eggs once in therr days, the group gathering eggs once in two day and the group gather-ing eggs once in a day. Ca and P content in the feed supplied were 3.5% and 0.77%, respectively. The results were as follows.
1) Percentage of cages in number which has eggs touched was 53% in cages with three eggs and 14% in cages with two eggs. Percentage of eggs touched in total eggs was 39.0% and 13.6% in cages with three and two eggs, respectively.
2) Egg breakage occurred about half in total cages with touched eggs.
3) percentage of egg breakage in total eggs was 4.8, 9.0 and 14.2% in cages with one, two and three eggs respectively, namely it increased 4 to 5% increase in one egg in a cage.