This study was conducted to investigate the effects of dietary supplementation of various types of fermented red ginseng marc with red koji to laying hens on eggshell and egg yolk quality characteristics. A total of 240 Hy-line Brown laying hens (40 wk of age) were randomly allotted to 24 pens (6 replicates per treatment and 10 laying hens per replicate). Experimental diets consisted of 4 treatments containing basal diet (control), 1% fermented red ginseng marc powder with red koji, 1% fermented red ginseng marc pelleted with red koji and 1% fermented red ginseng marc coated with red koji. During the 8-wk feeding trial, there were no significant differences in eggshell strength, eggshell thickness and eggshell color among the treatments, except for eggshell strength at 4 and 8 wk and eggshell thickness at 0 wk. In addition, no differences in egg yolk color and egg yolk index were found for all treatments throughout the 8-wk feeding period, except for egg yolk color at 0 wk. Thus, using various types of fermented red ginseng marc with red koji to laying hens did not improve eggshell and egg yolk quality characteristics.

감마선 조사 계란의 유전독성학적 안전성을 평가하기 위하여Escherchia coli PQ37 균주를 이용한 SOS chromotest, Chinese hamster lung cell을 이용한 염색체 이상 시험의 in vivo 시험과in vivo 시험으로 마우스를 이용한 소핵시험을 실시하였다. 대사활성계 적용 및 미적용의 in vitro의 모든 시험에서 음성대조군과 통계학적으로 유의적인 차이는 없었다. 또한in vivo 시험에서도 시험물질을 투여한