세리신 잠의 발육, 실샘 성장, 세리신 량, 혈액 아미노산 조성 등 세리신 잠의 특성을 알아보기 위하여 잠 120 과 같은 조건으로 사육하여 얻은 결과는 다음과 같다. 1. 부화율에 있어서 세리신 잠은 85%이며 잠 120 은 95%이었다. 특히 세리신 잠은 부화가 고르지 않았다. 2. 유충 기간에 있어서 세리신은 20 일 23 시간이었고, 잠 120 은 21 일 22시간이었다. 3. 실샘에 있어서 세리신 잠은 중부실샘이 대부분이며 후부 실샘의 길이는 약 2~3cm 이었고 굴곡은 없었다. 4. 세리신 잠에 있어서 상족후 나방까지의 기간은 약 12 일이었으며, 화용후 화아까지는 7 일로 대단히 짧은 특성을 보였다. 5. 고치에 있어서 세리신 잠은 이주 얇고 가벼웠으며 견충중은 2.7cg 이며 견충 비율은 3.65%이였다. 6. 세리신 (sericin protein)양에 있어서, 세리신 잠의 견충이 sericin 만 으로 구성되어 있고 잠 120 은 28%가 sericin 이었다. 세리신 잠의 견충 당 sericin 율은 잠 120 의 34.6%정도였다. 7. 혈액 아미노산의 양에 있어서 세리신 잠은 histidine, lysine, glutamic acid 가 많았으며 5 령 발육에 따른 조성의 변화에 있어서 대부분의 혈액 아미노산들은 증가하였다.

This study was conducted to compare among bull, steer and heifer on growth performance, blood composition and carcass traits according to fattening phase in Hanwoo. 12 month of aged 4 bulls (339.8±18.5 kg), 4 steers (309.8±13.2 kg), and 3 heifers (290.0±16.7 kg) were allocated in the stalls with individual feeding system during 20 months. Average daily gain was not different among the treatment groups during early fattening phase, but higher in the bulls and lower in the heifers after mid-fattening phase (p<0.05). The difference of body size by animal groups appeared from 24 month of age, and wither height and body length of Hanwoo heifer were the smallest (p<0.05) among treatment group. But wither height was not difference among treatment groups at 32 month of age. At 12 month of age, concentrations of serum cholesterol, triglyceride, glucose and total protein were higher in the heifers compared to other groups, and serum GPT (Glutamic pyruvic transaminase) was the highest (p<0.05) in the bulls, and serum GOT (Glutamic oxaloacetic transaminase) was the highest (p<0.05) at late fattening phase in the bulls. Meat yield index was similar between the bulls and the heifers, and the lowest (p<0.05) in the steers. Marbling score was significantly higher (p<0.05) in the steers and the heifers than in the bulls, and meat quality was the best in the steers among treatment groups. The results of this experiment might be used as a basal data on difference between gender in revision of Korean feeding standard for Hanwoo.

In this study, we investigated the effects of dietary supplementation (n = 40 pigs/treatment) with bamboo powder (0, 1, 2 and 3%) for 38 days. We evaluated growth performance, blood metabolites, and carcass characteristics of fattening pigs and gas emission and microbial populations in pig manure, to obtain data on pork producers for environmental management. We obtained the following results. First, supplementation with increasing amounts of bamboo powder had a significant (P < 0.05) effect on feed intake, feed efficiency, and glucose contents (except for initial and final body weight, weight gain, carcass characteristics, and blood urea nitrogen). In terms of blood metabolites, glucose and blood urea nitrogen tended to decrease with increasing amounts of bamboo powder. Second, the amounts of ammonia, methane, amine, hydrogen sulfide, and acetic acid were reduced by increasing amounts of bamboo powder when compared with the controls (P < 0.05). However, there were no significant differences in pH, propionic acid, iso-butyric acid, butyric acid, iso-valeric acid, and valeric acid among all treatments. The lowest gas emission was observed when 3% bamboo powder was used. Third, supplementation with increasing amounts of bamboo powder tended (P < 0.05) to increase the total number of bacteria, Lactobacillus spp., and yeast, but E. coli, Salmonella spp., and Shigella spp. were not detected in any treatment. In conclusion, the results of this study suggest that supplementation with bamboo powder was effective in reducing gas emission and inhibiting pathogen populations in pig manure by lowering the pH of the manure.

The monthly variations of blood characteristics and RNA/DNA of black sea bream, Acanthopagrus schlegeli, habituated in Geojae costal area were analysed to determine health condition of natural stocks in terms of gonad maturation and spawning season from March 2010 to February 2011. Spawning season determinated by gonadosomatic index is from June to August. RNA/DNA ratio of black sea bream muscle was strongly correlated with spawning season. During the gonad maturation RNA/DNA ratio in dorsal muscle tissue was decreased contrast to rapid increase during spawning season. Blood composition factors increased in terms of gonad maturation are aspartate aminotransferase, cholesterol, triglyceride, total protein, glucose, globulin, alkaline phosphatase and inorganic phosphate. Other blood factors increased during spawning season are alanine aminotransferase, blood urea nitrogen, uric acid and lactate dehydrogenase.

We examined the effects of the vibration stress on cortisol secretion and hematological characteristics in soft-shelled turtle, Pelodiscus sinensis. For the stressed group vibration of from electric vibrator applied for 30 min with 2-h intervals during daytime () up to 28 days. Using the blood samples collected from ten turtles held once a week after vibration stress, we measured hematocrit, hemoglobin, red blood cells, cortisol, glucose, lactic acid, osmolality, , aspartate aminotransferase (AST), and alanine aminotransferase (ALT). The results have showed that P. sinensis received vibration stress exhibit the 'typical' stress-induced physiological responses (cortisol, glucose, lactic acid, osmolality, ions, hematocrit and hemoglobin) induced by vibration stress. Our data suggested that chronic vibration stress caused substantial stress in the animal, and in particular, the persisting elevated levels of AST and ALT would be highly correlated with the adverse effects of the stress. The high hematological characteristics during entire experimental period showed that the P. sinensis could not adapt to chronic stimuli provoked by vibration stress.

In this study, we evaluated the property change and relationship between hematological and biochemical parameters in exposure group and control group by multiple inhalation exposure, of NO2. In case of leukocyte, change of hematological property increased significantly in statistics (p<0.05) in mice experiment. in case of hematocrit of exposure group, it was of decreased significantly in statistics. the tendency of hemoglobin and hematocrit was similar to all for three case. in case of methmoglobin that of the exposure group in mice experiment was meaning increased(p<0.05). For the NO2 influence in biochemical property, total protein and triglyceride was decreased but not significant in statistics, albumin was decreased in the exposure group in the animal experiments. blood urea nitrogen and creatinine increased significantly in statistics in the animal experiments. uric acid and lactate dehydrogenase in serum increased significantly in the exposure group. We have to evaluate risk assessment for the NO2 of indoor air pollutant in low concentration and long time.

본 연구는 임신한 생쥐에 DEHP의 투여가 자손의 번식특성과 혈액성분에 미치는 영향을 검토하였으며 그결과는 다음과 같다. 임신기에 DEHP의 투여가 웅성 자손의 체중, 번식기관 무게 및 정액 성상에 미치는 결과는 투여구간에 커다란 차이가 없었다. 임신기에 DEHP의 투여가 웅성 자손의 혈액 성상에 미치는 영향을 조사한 결과, WBC, HB, HT, MCH 및 albumin은 투여구간에 차이가 없었으나, RBC MCV, MCHC, PLT 및 total p

본 연구는 임신한 생쥐에 DEHP의 투여가 분만 후 생쥐의 번식기능과 태아의 성비에 미치는 영향을 검토하였다. 임신한 자성 생쥐에 DEHP을 투여한 후 임신 19일째에 임신한 자성의 체중, 태아의 체중, 태아수 및 태아성비를 조사한 결과, 실험개시시와 실험종료시 임신한 자성의 체중은 각 투여구간에 차이가 없었으며, 자웅성태아의 체중, 평균 태아수 및 태아의 자웅성 성비는 투여구간에 커다란 차이가 없었다. 임신기에 DEHP의 투여가 분만한 후 어미의 번식

본 연구는 내분비 장애물질 중 관찰물질로 지정된 저 농도의 DEHP의 투여가 생쥐의 번식기능에 미치는 영향을 검토하였으며 다음과 같은 결과를 얻었다. 웅성 생쥐에 DEHP를 체중 kg당 무처리구, 대조구(corn oil 투여구), 0.5, 1.0 및 10.0mg DEHP를 투여한 구에서 실험개시시와 실험종료시의 무게(정소상체, 정낭선 및 응고선)는 투여구 간에 커다란 차이가 없었으나, 정소의 무게는 DEHP 투여구가 대조구에 비해 다소 높은 경향을 나타