한우(韓牛)의 임신기간(姙娠期間)에 따른 혈청효소(血淸酵素) 활성도(活性度) (GOT, LDH 및 ALP) 의 변화(變化)

조충호,Jo, Chung-Ho 대한수의학회 1982 大韓獸醫學會誌 Vol.22 No.1

Serum glutamic oxaloacetic transaminase (GOT), latic dehydrgenase (LDH), and alkaline phosphatase (ALP) activities were determined in 5 Korean native cattle to obtain the base line of blood enzyme activities in relation to the stage of gestation. Serum GOT activities showed an increasing tendency with the course of gestation period, serum LDH levels were within normal range through all the stage of pregnancy, and the slight increase in serum ALP activities was acknowledged at the 2nd and 3rd stage of gestation.

유우(乳牛)의 번식능률(繁殖能率)에 관한 연구(硏究) 1. 분만후(分娩後) 수태시(受胎時)까지의 소요일수(所要日數)

조충호,용만중,이철우,Jo, Chung Ho,Yong, Mahn Joong,Lee, ChuI Woo 대한수의학회 1976 大韓獸醫學會誌 Vol.16 No.2

The survey was carried out to investigate the average number of days from parturition to conception to 349 calving cases out of Holstein cows in total 154 heads observed. The results were as follows: 1. The average number of days from parturition to conception was $97.41{\pm}8.22$ and it's similar during the period from primipara to 4th calving order, and irregular during on and after 5th. 2. The average number of days from parturition to conception in calving month was observed all through the year: the prolongation among on April and July, and the brief duration among on January and March. 3. In the cases under 50 and 150 days after delivery, the distribution showed 53.56% and 83.91%, respectively, and it's about 20% between 70 and 90 days after delivery.

임신가토(姙娠家兎)의 혈액상(血液像)과 혈청성분(血淸成分)에 관한 연구(硏究)

조충호,Jo, Chung Ho 대한수의학회 1972 大韓獸醫學會誌 Vol.12 No.1

Hemogram and serum composition of pregnant rabbits were studied and the results obtained were as follows: 1. Erythrocyte, hemoglobin concentration and hemotocrit value of pregnant rabbits decreased at the late stage of gestation, and 1 week after delivery the values were recovered to the normal levels. Number of erythrocyte and hematocrit value were not found to be significant, but hemoglobin concentration showed significant differences at the third and fourth week of pregnancy. 2. Total leucocytes of pregnant rabbits increased continuously as gestation progresses and 1 week postpartum the values were returned to normal. Highly significant changes were observed in the third and the fourth week of pregnancy. Neutrophil was revealed highly significant rise at the third and the fourth week of gestation and 1 week postpartum, but lympocyte was decreased highly significantlly. 3. Serum calcium of pregnant rabbits revealed the tendency of decrease as gestation progresses and 1 week after delivery the value was returned to normal, and highly significant decrease was abserved at the fourth week. Serum inorganic phosphorus of pregnant rabbits showed highly significant decrease at the fourth week of gestation, but no differences were observed at the other period of gestation and 1 week postpartum. 4. Serum protein of pregnants rabbits showed the tendency of decrease continuously pregnancy progresses, and 1 week after delivery showed the normal values. Highly significant decrease was found at the fourth week of gestation. the levels of serum lipids in pregnant rabbits was unchanged untill the third week of pregnancy, but at the fourth week and 1 week postpartum, the rise was highly significant. The level of total serum cholesterol in pregnants rabbis was shown the tendency of decrease untill the end of the second week of gestation and significantly dropped at the third week, thereafter, the value was rose significantly at the fourth week of gestation and 1 week postpartum.

한우(韓牛)의 성주기(性週期)에 따른 혈청(血淸) GOT 및 혈청(血淸) ALP 활성도(活性度)의 변동상에 관하여

조충호,Jo, Chung Ho 대한수의학회 1981 大韓獸醫學會誌 Vol.21 No.2

Changes in serum glutamic oxaloacetic transaminase (s-GOT) activities, serum alkaline phosphatase activities and serum total protein amounts were investigated on seven Korean native cows having normal estrus cycle of 18~24 days after normal parturition, dividing estrus cycle into estrus (0~1 days), metestrus (2~6 days), diestrus (7~16 days), proestrus (17~20 days). The results were as follows. 1. Serum GOT activities at estrus ranged from 73.5 to 121.5 Ku with a mean of $89.14{\pm}17.16$ Ku, at metestrus 57 to 89 Ku with a mean of $67.01{\pm}10.81$ Ku, at diestrus 54 to 89.5 Ku with a mean of $67.05{\pm}10.05$ Ku and at proestrus 53 to 112 Ku with a mean of $73.00{\pm}20.05$ Ku. The activities were significantly increased at the estrus comparing with other stages (P<0.01). 2. Serum ALP activities at estrus ranged from 8.0 to 10.4 K-Au with a mean of $8.74{\pm}0.83$ K-Au, at metestrus 6.5 to 9.2 K-Au with a mean of$7.74{\pm}0.76$ K-Au, at diestrus 5.6 to 9.0 K-Au with a mean of $7.67{\pm}1.13$ K-Au, at proestrus 6.2 to 9.3 K-Au with a mean of $7.12{\pm}1.18$ K-Au. The significance was not recognized among the stages of estrus cycle. 3. Serum total protein amounts at estrus ranged from 6.45 to 8.0g/10dl with a mean of $7.25{\pm}0.57/100dl$, at metestrus, 6.37 to 7.9g/100dl with a mean of $7.65{\pm}0.50g/100dl$, fat diestrus, 6.56 to 8.67g/100dl, with a mean of $7.53{\pm}0.55g/100dl$ and at proestrus 5.94 to 7.71g/100dl with a mean of $6.54{\pm}0.65g/dl$. There was not significance among the stages of estrus cycle.

불임우(난소기능감퇴유우) 혈청의 Vitamin A 함량

조충호,Jo, Chung Ho 대한수의학회 1974 大韓獸醫學會誌 Vol.14 No.1

The experiment was carried out to determine the concentration of vitamin A by Carr-Price reaction ot fifty six sera obtained from normal cows and fourty four sera from the cows with ovarian hypofunction. The results obtained in this work were summerized as follows: 1. The mean values of vitamin A concentration of sera obtained from the cows with ovarian hypofunction were 88 IU/100 ml in summer (grazing), and in winter 79 IU/100 ml (hay) and 173 IU/100 ml (trench silage). The mean values of vitamin A concentration of sera from normal cows were 212 IU/100 ml in summer (grazing), and in winter 113IU/100 ml (hay) and 338IU/100 ml (trench silage). The differences of the concentrations of vitamin A among three groups were statistically highly significant (p<0.01). 2. The differences of vitamin A concentrations between the hay group and the trench silage group in normal cows and in cows with ovarian hypofunction were statistically highly significant (p<0.01). 3. The concentrations of vitamin A in summer group (grazing) were higher than those of the hay group in winter in normal cows and in cows with ovarian hypofunction. 4. The concentrations of vitamin A in the trench silage group in winter were higher than those of summer group (grazing) in normal cows and in cows with ovarian hypofunction.

임신가토(姙娠家兎)의 혈청총단백량(血淸總蛋白量)과 단백분획상(蛋白分劃像)에 대(對)하여

조충호,남치주,장경진,Jo, Chung Ho,Nam, Tchi Chou,Chang, Kyung Jin 대한수의학회 1974 大韓獸醫學會誌 Vol.14 No.1

The total serum protein, protein fractions by paper electrophoresis and A/G ratio in pregnant rabbits were observed. The results obtained in this work were sumrnerized as follows: 1. Total serum protein and the fraction of serum albumin revealed a decrease with the advancing of gestation, especially total serum protein was decreased significantly on 3 weeks of pregnancy. There was a tendency to return tward control level on one week after delivery. 2. The fraction of ${\alpha}_1$, and ${\alpha}_2$-globulin showed little changes during the period of gestation. 3. The fraction of ${\beta}$-globulin was increased more or less during the period of gestation, and on one week after delivery showed considerable increase but the increase was statistically insignificant. 4. The fraction of ${\gamma}$-globulin revealed a variable changes during pregnancy but there was no significant differences. 5. A/G ratio was significantly decreased at 3 weeks of pregnancy and the ratio was near control level on one week after delivery.

젖소 수정란의 급속동결법 개발에 관한 연구

조충호,황우석,정창국,전윤성,이흥식,이창우,Jo Chung-Ho,Hwang Woo-Suk,Cheong Chang-Kook,Jeon Yun-Seong,Lee Heung-Shik,Lee Chang-Woo 한국임상수의학회 1987 한국임상수의학회지 Vol.4 No.2

Quick freezing of bovine embryos was attempted after they were predehydrated at room temperature. Combined solutions of 2M glycerol or 2M ethylene glycol in the presence of either 0.5 or 1.0M sucrose in phosphated buffered saline+20% calf serum were compared. The quick freezing method in which embryos were directly transferred in liquid nitrogen vapor for 2 minutes at - l70$^{\circ}C$ before being plunged into liquid nitrogen was used. Post-thaw survival rates in 2M glycerol and 2M ethylene glycol were high with 0.5 M (55.6% and 53.3%) versus 1.0M(38.1% and 31.6%) sucrose(P < 0.05). But survival rates with 2M glycerol and 2M ethylene glycol were not significantly different. Transfer thawed embryos frozen with 2M glycerol and 2M ethylene glycol by 0.5M sucrose resulted in birthrates of 40.9% and 40.0%, respectively compared to 26.3% and 27.2%, respectively, for 1.0 M sucrose(p<0.05). This was 56.0% for fresh control.

임신유우(姙娠乳牛) 혈청(血淸)의 총(總) Calcium 및 무기인(無機燐) 농도(濃度)에 관하여

조충호,용만중,Jo, Chung Ho,Yong, Mahn Joong 대한수의학회 1975 大韓獸醫學會誌 Vol.15 No.2

The experiment was carried out to determine the concentrations of total calcium and inorganic phosphorus of thirty rera obtained from pregnant Holitein cows, six sera from normal non-pregnant cows with one month after delivery, six sera from cows with ovarian cyst and six sera from heifer of sixteen months old. The changes of total calcium and inorganic phosphorus were observed on the 2nd, 4th, 6th, 8th, and l0th month of gestation. The results obtained in this work were summarized as follows: 1. The mean values of total serum calcium obtained from the pregnant group were $9.59{\pm}0.34mg/100ml$, from the non-pregnant group $10.23{\pm}0.47mg/100ml$, from the infertility grou $10.37{\pm}0.27mg/100ml$, and from the heifer group $10.07{\pm}0.20mg/ml$. The change of total serum calcium values in the pregnant group revealed the tendency of decrease as gestation progresses and the lowest value appeared on the sixth month. The mean value of total serum calcium in the pregnant group was lower than those of the other groups, but the differences were not statistically significant. 2. The mean values of serum inorganic phosphorus obtained from the pregnant group were $5.82{\pm}0.31mg/100ml$, from the non-pregnant group $5.92{\pm}0.44mg/100ml$, from the infertility group $5.80{\pm}0.49mg/100ml$, and from the heifer group $5.10{\pm}0.32mg/100ml$. The change during pregnancy showed a slight fall and the lowest value appeared on the sixth month. The differences of serum inorganic phosphorus values between the pregnant group and the other adult groups were not significant, but these adult groups showed a significantly higher value than that of heifer group (p<0.05).

Albumin density gradient 방법에 의한 고활력 우정자 분리시의 정자두부크기의 비교관찰

김명철,조충호,정순오,Kim, Myung-Cheol,Jo, Chung-Ho,Chung, Soon-O 대한생식의학회 1984 Clinical and Experimental Reproductive Medicine Vol.11 No.2

In order to obtain high proportion of Y sperm the semen was laid over 6%,10% and 20% bovine serum albumin. Separated sperm were stained with quinacrine mustard in order to see F - body which could be seen in human Y sperm. But we could'nt find F-body in the bull sperm. So sperm were compared with size of sperm head. As a result of observation separated sperm was small in size of length and width of sperm head as compared with control sperm. So it was found that the proportion of Y sperm showed a marked increase in separated layer. Then the higher albumin density was, the higher the proportion of Y sperm which had smaller head and faster motility was. But the higher albumin density was, the lower the recovery rate of sperm was. So it was hard to separate Y sperm in oligospermia.

u-City 통합관제 인프라 기술

서시오,조충호,Seo, Si-O,Jo, Chung-Ho 한국통신학회 2010 정보와 통신 Vol.27 No.11

본고에서는 u-City 인프라구축에 필요한 기술들을 살펴본다. 먼저 U-city인프라 구축에 필요한 핵심기술 구성요소와 각 기술에 대한 내용을 소개한다. 이를 위해 먼저 통합운영 센터의 개념 및 역할에 대해 소개하고 u-City 인프라 통합망의 구성과 u-City통합망 인프라에 포함되는 다양한 통신망 기술의 특징을 소개한다. 또한 본고는 U-city 도입을 원하는 지자체 담당자들에게 정보기술측면에서 고려할 내용을 포함한다.