유 성분 분석을 통한 젖소 영양상태 및 개체관리에 관한 연구

이성모,김동원,최병렬,서강문,홍종해,Lee, Sung-mo,Kim, Dong-won,Choi, Byung-ryul,Seo, Kang-moon,Hong, Chong-hae 대한수의학회 2001 大韓獸醫學會誌 Vol.41 No.2

Milk constituents and somatic cell count (SCC) were analysed for 4,059 milk samples from 178 dairy farms from April to December in 1999. Correlations among each milk constituents, milk urea (MU) concentration and SCC in association with lactation stage, milk yield and parity, and balancing status of nutrients' supplies were analysed, and the results are summarized as follows; Averages of milk fat percent, total solids percent and milk yield were $3.72{\pm}0.91%$, $12.50{\pm}1.31%$ and $23.80{\pm}8.54kg$, respectively, whereas those were significantly lower during the summer season. In contrast, average of MU concentration was $0.0361{\pm}0.0006%$ which was significantly higher during the summer season. With milk yield, concentrations of fat, protein and SCC in milk decreased but concentrations of lactose and urea in milk and body condition score (BCS) were not altered. Concentrations of fat, protein, lactose, total solids, SNF, and urea in milk were significantly affected by stage of lactation ($P{\leq}0.0001$) but SCC was not changed. Parity of dairy cows had a significant effect on concentrations of fat ($P{\leq}0.02$), lactose ($P{\leq}0.0001$), total solids ($P{\leq}0.002$), and SNF ($P{\leq}0.0001$) in milk and milk yield ($P{\leq}0.0005$) but did not change concentrations of urea and protein in milk. Somatic cell count had significant positive correlationship with percentages of fat, protein and total solids ($P{\leq}0.0001$), respectively, but had negative correlationship with percentages of urea and lactose in milk and milk yield ($P{\leq}0.0001$). Milk urea concentration was negatively correlated with concentrations of protein, fat, total solids, and SNF in milk and milk yield ($P{\leq}0.0001$) and, according to regression analysis using milk urea concentration and SCC, following equation was obtained; $Y(MU)=3.688{\times}10^{-2}-4.04{\times}10^{-7}{\times}X(SCC{\times}1,000)(r^2=0.0038$, $P{\leq}0.0001$). We studied balance between protein and energy supplies to dairy cows in each farm based upon milk urea and protein concentrations, and results showed that 137 of total 178 farms fed cows unbalanced amounts of dietary protein and energy.

급식소 종사 영양사의 계란소비에 대한 인식도 조사

이성모,김혜영,홍종해 한국수의공중보건학회 2002 예방수의학회지 Vol.26 No.1

This study was conducted to provide basic information on the patterns of dieticians on egg consumption to prepare the scheme of egg safety assurances and quality improvement in feeding facilities. A questionnaire was administered to the dieticians residing in Kyung-in area from May through June, 2001. The 148 dieticians were categorized as 2 age groups (the twentieth; over thirtieth), 3 foodservice groups (school; company; hospital), 3 feeding size groups (≤300; 300-1000; ≥1000), and 2 management type groups (direct; contract). The most frequent places of buying eggs were a food supplier or a large supermarket. The major item to be checked before buying eggs was expiration date followed by cold chain and laying date. The consumption rate of raw egg was 11.49%. Steamed egg mixing was the most frequent type of cooking in all foodservice groups. Major reasons of avoiding egg consumption were constitutional factors and high cholesterol contents. The dissolution of york and/or egg white, broken eggs and rotten(spoiled) eggs were indicated as major items of dissatisfaction of egg quality. In conclusion, the quality improvement and safety control from farm to table using Hazard analysis and critical control point (HACCP) system was required to satisfy the consumer's needs and to facilitate consumption.

산란계 농장에서의 생물학적 위해요인과 관리점 분석

이성모,유한상,홍종해,Lee, Sung-Mo,Yoo, Han Sang,Honsg, Chong-Hae 대한수의학회 2004 大韓獸醫學會誌 Vol.44 No.4

An egg has been considered as one of the most important food sources because of it's nutritional superiority and reasonable price. With the complexity of egg flow system from production to consumption in Korea, preventive measures for egg safety have been required. Therefore, our study was carried out to analyze hazards for the egg under farm level and develope preventive measures with a purpose of obtaining egg safety. To analyze biological hazards, microbial contamination of egg(normal, dirty and cracked), water, feed, manure and equipments associated with laying were investigated. One isolate of Salmonella enteritidis and S. bardo were detected from the manure and dirty egg shell respectively. The sanitary conditions in the farm were surveyed by questionaries. Confirmation of vaccination for purchasing chicks and establishment of sanitary guidances for water and type of water suppliers ought to be preceded. Feed supplier systems including feed tanks, feed pipes and hoppers were known that their contamination might give it a chance to infect individuals and egg content and shell. The safe and rapid disposal of dead chickens and rodent were reported as more crucial factors to prevent infectious disease and manage good sanitation. Egg selector and collecting belt should be kept properly not to be contaminated from egg fluids and feces. It should be also considered that regular gathering of eggs, removal of dirty or cracked ones, storage under refrigeration and the use of disposable egg tray were continuously fulfilled. Conclusively, Our results suggested that HACCP-based system for providing fresh and safe eggs to consumers should be applied to the farm.

여성 소비자의 계란 소비형태에 관한 연구

이성모,김혜영,홍종해 대한보건협회 2001 대한보건연구 Vol.27 No.2

This study was conducted to provide basic information of the attitude of women's egg consumption to prepare the scheme of consumption promotion and quality improvement. A questionnaire was administered to the women group residing in Kyung-in area from February through March, 2001. The categorized 551 women's characteristics were 4 age groups(the twentieth; thirtieth; fortieth; over fifty), 2 income groups(monthly family income ≤2,000,000 won; >2,000,000 won), 2 occupation groups(housekeeper; other job), 3 residential type group(detached house; apartment; others), 3 family size group(≤2; 3-4; ≥5). To test the statistical significance, chi-squared test was used. The results were as follows; The major item to be checked before buying eggs were expiration date, date of egg-laying, price, kind of eggs in descending. The dissolution of york and/or egg white was the most frequent reason of dissatisfaction of egg quality. A department store or a large supermarket were the most frequent places of buying eggs for the group of high income and for the women who have job(p=0.0131). Distance and convenience for buying affected the choosing place for purchase. The respondents residing at a detached house much preferred to buying at a local market, but the residents at a apartment preferred a department store or a large supermarket(p<0.0001). The rate of consumption of raw eggs 9.44% was higher than the rate of mixing with the rice 7.80%. Fried egg was the most frequent type of cooking in all age group. The reason of egg consumption for the age group of twentieth was cooking handiness and for the other age group was its high nutritive value. Cholesterol and constitutional factors were major reasons of avoiding consumption in older age group(p<0.0001). The experience rate of stomach troubles was higher in the fortieth(p=0.0496). The knowledge and attitude of the special or functional eggs were positive in high income group(p<0.0001) due to it's high nutritive value, but the satisfaction rate after using was 58%. The respondents did not feel the necessity of additional purchasing eggs for their food consumption. In conclusion, the quality improvement, the development of functional eggs, and safety control from farm to table using HACCP were required to satisfy the consumer's needs and to facilitate consumption.

상황버섯 추출물의 투여가 운동수행력, 근피로 및 항산화체계에 미치는 영향

이성모 ( Sung Mo Lee ),이승범 ( Seung Bum Lee ),이명천 ( Myung Chun Lee ) 한국운동영양학회 2006 Physical Activity and Nutrition (Phys Act Nutr) Vol.10 No.2

광역철도 연계·혼용구간의 시설안전체계 개선방안

이성모(Sung Mo Rhee),박신형(Park, Sin-Hyeong),김용석,양지수 대한교통학회 2008 대한교통학회 학술대회지 Vol.59 No.-

철도는 물리적으로 도시구간을 운행하는 도시철도와 200km/h이상의 속도로 운행하는 고속철도, 그리고 이 두 가지를 제외한 철도인 일반철도로 구분된다. 이에 반해 광역철도는 주로 도시 내 교통수요를 처리하기 위한 지하철 중심의 도시철도와 지역 간 승객 및 화물 수송을 담당하는 일반철도를 대상으로 일정 요건을 충족시킬 때, 해당 구간에 대해 지정되는 개념적 측면의 분류라 할 수 있다. 따라서 도시철도나 일반철도에 비해 그 개념이 모호하고 이 두 가지 유형의 철도와의 관계에서 광역철도가 가지는 특수성과 연계 · 흔용구간에 대한 명확한 운영주체 및 시설안전체계에 대한 기준이 정립되어 있지 않은 실정이다.

계란의 난각 처리와 보관 방법에 따른 품질 변화

이성모 ( Sung Mo Lee ),홍종해 ( Chong Hae Hong ) 한국가축위생학회 2005 韓國家畜衛生學會誌 Vol.28 No.3

Egg has been considered as one of the most important food sources in both nutritionally and economically. However, because the hazards of egg flow chains` complexity from producers to consumers and the insufficiency of cold chain systems in Korea are still remained, preventive measures for egg safety should be established. This experiment was carried out to investigate the changes of egg quality during storage in order to find out the proper storage condition and eggshell treatment. Eggs were stored at cold condition(5℃, relative humidity; RH:65±3%) and room condition(1st; Sep 6~Nov 15, 2001, 10~30℃, RH 41~86%, 2nd; Dec 13, 2001~Feb 21, 2002, 4~23℃, RH 36~89%) after eggshell treatment(unwashed, washed and coated egg) during 10 weeks and examined weight loss and interior quality periodically. Weight loss was in decreasing order room washed > room unwashed > cold washed > cold unwashed > room coated > cold coated egg. And, Haugh unit was decreasing order room washed > room unwashed > room coated > cold washed > cold unwashed > cold coated egg. Our findings show that both coated eggs and refrigeration reduces the rate of decline in Haugh units and egg weight. And, washed eggs had lower average Haugh units and a higher weight loss than any of the eggshell treatment in both storage conditions. Conclusively, for washing eggshell, 150ppm of sodium hypochlorite, regular exchange and temperature control of water should be consistent and also eggs should be dried immediately after washing. Also, national guidelines for temperature and moisture of storage places, transportation and expiration data should be established to keep quality and weight loss of eggs. Storage temperature that is a critical factor in the quality and safety of eggs should be kept under 12℃ and labelling of expiration date should be obligatory.

인천지역에서 유통되는 벌꿀의 품질조사

이성모 ( Sung Mo Lee ),홍지영 ( Jee Young Hong ),박은정 ( Eun Jeong Park ),김정임 ( Jung Im Kim ) 한국가축위생학회 2007 韓國家畜衛生學會誌 Vol.30 No.1

A total of 60 samples (38 domestic honeys and 22 foreign honeys) were collected from October in 2003 to May in 2004 in Incheon metropolitan area, and contents of important quality-related components in honeys were analyzed using methods of Korea Food Code. Most of the honeys were satisfied with Korean limit (21%) in moisture content even though 4 samples brought by Korean travellers and 1 sample in domestic honey (wild flower) were higher than the limit. The lowest mean level of moisture in the honeys was imported foreign honeys (16.95%). All of the samples were below of 0.6% in the analysis of ash contents. The highest content was imported foreign honey (0.19%) while the lowest content was in domestic acacia honey (0.05%). Acidity of domestic honeys (9.49-9.94meq/kg) was approximately half of that in foreign honeys. All samples were satisfied with Korean limit (40.0meq/kg). In the analysis of fructose and glucose, only three samples of foreign honeys were lower than Korean limit (sum of both ; 65%). The content of sucrose in all samples was less than 7%. Mean of Hydroxymethylfurfural (HMF) contents were 12.83-24.3mg/kg in domestic honey, and 31.34-45.58mg/kg in foreign honey. However, three samples brought by Korean travellers were not satisfied with Korean limit (<80mg/kg). In conclusion, quality of domestic honey was better than that of foreign honey. Also, it may be needed that the honeys purchased by Korean travellers in foreign countries should be continuously monitored.

동절기 도축돈 폐병변 발생 양상에 관한 역학조사

이성모 ( Sung Mo Lee ),황현순 ( Hyun Soon Hwang ),유한상 ( Han Sang Yoo ),홍종해 ( Chong Hae Hong ) 한국가축위생학회 2001 韓國家畜衛生學會誌 Vol.24 No.1

This study was carried out to investigate and analyze the gross lesions of lungs in slaughtered pigs. Pigs were collected from the areas of Kyounggi, Chungbuk, Chungnam and Kangwon provinces from November to December 1999. One hundred-eleven pigs(17.4%) had lung lesions with various degrees among 639 pigs tested. By the standard scoring system, mean score of the lung lesion was 25.6+13.2. Regional prevalence of lung lesions were 23.5%(8/34) in Kangwon, 17.3%(61/352) in Kyunggi, 15.7%(32/204) in Chungnam and 20.4%(10/49) in Chungbuk. Mean number of pulmonary lesions per pig were 2.87. Most frequent region with pulmonary lesions was right cranial lobe(30.1%) and the decreasing prevalence rates were followed by 23.8% in right middle lobe, 21.05 in right accessory lobe, 15.0% in left cranial lobe, and 5.0% in left middle and accessory lobe(5.0%) and also there was the same prevalent tendency on pulmonary lesions in each lobes of 111 pigs with gross lesion. Isolation rate of bacteria from the affected lungs was 72.1 % and main pathogen was Pasteurella multocida. Gross and histological examination of pulmonary lesions in some pigs suggested that there were no marked changes regarded as the correlation with specific diseases except fibropurulent bronchopneumonia which was suspective of some respiratory bacteria including Pasteurella multocida and peribronchiolar lymphoid hyperplasia in varying degrees which was strongly associated with mycoplasmal infection. Consequently, the results in the study were suggested that there was consistently exposed against many causative factors including bacteria in the considerable number of pig herds rearing in the middle area in Korea.

액체크로마토그래피를 이용한 벌꿀 중 테트라싸이클린계 항생물질의 정량분석 및 잔류조사

이성모 ( Sung Mo Lee ),박은정 ( Eun Jeong Park ),홍지영 ( Jee Young Hong ),김정임 ( Jung Im Kim ),이정구 ( Jung Goo Lee ),황현순 ( Hyun Soon Hwang ),김용희 ( Yong Hee Kim ) 한국가축위생학회 2005 韓國家畜衛生學會誌 Vol.28 No.3

Oxytetracycline, tetracycline, chlortetracycline and doxycycline in honey were separated by solid phase extraction(SPE) and determined with high performance liquid chromato-graphy(HPLC) with UV/Visible detector. Analysis was carried out using following conditions; XTerra C8 column(3.9 × 150 ㎜ i.d. 5㎛), mobile phase composed of 0.01M oxalic acid : methanol : acetonitrile(820:80:100, v/v/v), isocratic pump at a flow rate of 0.9 ㎖/min. and 50㎕ of injection volume, UV/Visible detector with wavelength of 360㎚. The calibration curves of four tetracyclines showed linearity(γ2>0.999) at concentration range of 100~1,000ng/㎖. The recoveries in fortified honey represented more than 70% with low coefficient of variation(<10%) for concentration range of four tetracyclines. The detection limits for oxytetracycline, tetracycline, chlortetracycline and doxycycline were 13.8, 14.6, 26.2 and 24.9ng/g in acacia honey, respectively. We also monitored tetracyclines residue in domestic honey[n=38, acacia(20), wild flower(18)] and foreign honey[n=22, legally distributed(13), illegally distributed(9)] using modified CharmⅡ screening and HPLC confirmation methods. Seven of the 60 samples(11.7%) were suspect positive using modified CharmⅡ screening test. Chlortetracycline residue was found in one foreign honey(illegally distributed) tested at concentrations of 0.22 ppm. Conclusively, for more effective control of tetracyclines used in beekeeping should be further survey for residues in honey and also national guidelines(maximum residue limit:MRL) and methods should be obligatory.