産卵鷄에 대한 煙炭灰添加給與 效果에 關한 硏究 : 第2報 煉炭灰粒子度 크기가 産卵形質 및 卵殼質에 미치는 영향 2.Effects of particle size of Briquette ash on egg production and egg shell quality = Studies on the Briquette Ash Treatment in Laying Hen Diets

다국어 초록 (Multilingual Abstract)

This experiment was conducted to investigate the effect of particle Size of grit Briqutte ash (C), 20­30 mash (T_1), 30­40 mash (T_2) and 40­50 mash (T_3) of Briqutte ash (1％) in the formula feed on egg production rate egg weight feed conversion and egg quality with total of 30 pieces Laying hen(Babcock B 380) for 4 treatments during the experimantal period of 168 days from May 4, 1983 to october 12. the same year at brooding laboratory. Dept. of Animal Science. Jin Ju Agricultural and Forestry Junior Technical collage.
The reasults obtained are summarized as follows:
1. The egg production rate at Laying peak and Laying middle period was highest in the C plot and there were significant(p＜0.01) difference between the C and T_3, and There were significant(p＜0.05) difference between the othes expect C and T_1, T_2 and T_3.
2. Average egg weght at Laying peak and Laying middle period was heavy in the order of C (63.50, 65.21), T_1 (63.25, 64.99), T_2 (62.92, 64.92) and T_3 (62.87, 64.73) (p＞0.05)
3. Feed conversion at Laying peak and Laying middle period was C (2.20, 2.36), T_1 (2.25, 2.41), T_2 (2.30, 2.47) and T_3 (2.31, 2.50).
4. The yolk weight at Laying peak and Laying middle period was heavy in the order of T_3 (18.74, 19.22), T_2 (18.51, 19.21), T_1 (18.49, 19.19) and C(18.45, 19.01)(p＞0.05).