Bacillus thuringiensis var. kurstaki의 원형질체 형성조건에 관한 연구

강태숙 최신의학사 1989 最新醫學 Vol.32 No.3

제주낙농업의 현황과 문제점

강태숙,김창섭 제주대학교 농과대학 제주도축산문제연구소 1987 畜産論叢 Vol.2 No.1

The present study was conducted to analyze the present condition and fundamentals of dairy farming, and to offer proper imformation to Cheju dairy farmers and authorities concerned in order t o develop the dairy business in Cheju province. The percentage of cattle kept in Chelu province was 1.9 compared to those of the nation as whole: however, the percentage of dairy cattle was 0.5. This indicates that Cheju dairy farmlng is behind other provinces in its development. Keeping dairy cattle was more profitable than keeping other domestic animals, and the milk supply is short of the demand in Cheju province. Therefore. it is considered desirable to increase dairy cattle kept in Cheju province. The number of dairy cattle imported from foreign countries was 1,536, and 420. from the mainland. The dairy cattle imported were from Japan, Australia and America. The average number of dairy cattle per household was 14.2 in cow units, and number of cows, 12.3. The percentage of cows was somewhat high. 86.8%. The number of calves, heifers and bred heifers was smaller as the herd size became smaller. The average farm was 39,898 pyeong in area. Among them, rented area occupied 7.953 pyeongor 20%. The average farmland per head was 2,738 pyeong. Among them, fodder fields and cultivated pasture occupied 938 pyeong and 1.508 pyeong, respectively. Shelters secured per head averaged 3.95 pyeong. and silos 6.8 M/T. There were no significant differ-ences observed between herd sizes. The average labor-hour per head was 369.5, and the group of less than 10 head showed the most hours, 475.8. The percentage of self-supplying labor was 51.5. As the herd size became larger the labor-hours per head trended to become less.

濟州道內의 소 飼育과 牧野地 利用에 關한 調査硏究

康太淑 건국대학교 1975 論文集 Vol.2 No.1

For the improvement of livestock farming in Cheju province, to study the management of the uillage cooperative ranches, A survey on 30 full time cattle farms and 10 side job cattle farms were carried out for one month. The results analysed areas follows: 1.The pasture area of the 30 cooperative ranches was 8.3% of the total pasture area in Cheju. However, those 30 cooperative ranches wet·e raising 22% of the total number of all the cattle in Cheju. 2.The pasture area of the total cooperativeranches in Cheju was 35% of the total pasture area and the village cooperative ranches had 60% of the total Ri in Cheju. 3.The average size of the cooperative ranches was 163 ha and pasture area per head was 0.4ha, and per farm was 1 ha. Cattle raising farms was 67% of the total farms and the average herd size per farm was 2.5. 4.The number of beef Cattle in Cheju was 72% of Korea and the area of the improved range in Cheju was 40% of the total area in Korea. 5.Foully four percent of the feeding bull was Brahmans and 74% of those seeking the service of bulls premiered Brahmans. 6.Twenty six percent of the cooperative ranches had silos in their respective vilages, but only 5.3% of raising cattle household in the village that had silos used them to store silage. 7.Eighty five percent of the farms wanted to put fire on their pastures. Their main reason is to graze early and to control tick problem.

제주도 육우 및 낙농사업의 생산성 증대와 진흥을 위한 연구 : Ⅰ. 낙농 생산기반 및 경영조사

강태숙,정창조,김중계,이현종,김규일,김문철,강민수,양영훈 濟州大學校 農科大學 動物科學硏究所 1992 動物科學論叢 Vol.7 No.1

축산경영농가 수익성에 관한 연구

강태숙,양영훈,강민수 濟州大學校 農科大學 動物科學硏究所 1995 動物科學論叢 Vol.10 No.1

Ths study was carried out to investigate the profitability for livestock farming in Cheju Island. Farm types of Breed were breeding cow, beef cow, dairy cow, layer and broiler farming. Annual gross receipts per farm were 77,903, 30,023, 28,482, 16,041, 3,998 and 2.510 thousand won for the beef cow, hog, dairy, broiler, breeding cow and layer farming in order, respectively. Net incomes per farm were 56,823, 13,969 and 664 thousand won for the beef cow, hog and broiler farming in order, respectively. But for the breeding cow, dairy and layer farm suffered a loss in net income. Annual gross receipts per animal head were 421,000, 1,166,000, 890,000, 43,000, 642, and 355 won for the breeding cow, beef cattle, dairy, hog, layer, and broiler, respectively. Net incomes per animal head were 851,000, 20,000 and 15 won for the beef cattle, hog, broiler farming, respectively, but breeding cow, dairy and layer farm showed a loss in net income. As a whole it is suggested that the fitness of animal size over the utilities invested should be reappriased by farming type and that raising management levels and the items of cost and in-come be also reviewed for the reasonable mamaging, especialy in the breeding cow, dairy and layer farm.

제주마의 경주 활용 개선 방안

강태숙 한국농식품정책학회 2000 농업경영정책연구 Vol.27 No.1

These studies to look into the present problems and to get their solutions for Cheju horse production and racing in Cheju Island. About 10 years has passed after opening the Cheju racing track, the system of horse production and their use have not been completely established. At this point, it is important to screen and point out the problems of production of Cheju native horse and cross breed with other foreign breed, horse production, unsettled buying and selling system, and more efficient racing system. The long-term improvement package to provide farms with utilities and improved techniques of managing their horse farms should be needed for the systematic production and use of Cheju horse.

제주지역 우유생산의 효율성 분석

강태숙 제주대학교 농과대학 제주도축산문제연구소 1989 畜産論叢 Vol.4 No.1

From a policy point of view, con -arisons of actual individual produation and cost estimates with individual dairy farmers' best production and minimum cost provide useful insights into the farm level production technology. The objective of this study is (i) to imstigate farm level economic performance in Cheju area milk production, (ii) to examine what mnagement factors simificantly affect technical and allmtive efficiencies, and (iii) to make camparisom of emunic efficiency anorg Kyungki, Chungcheong, and Cheju regions. The cross section milk production and related price records were collected during the 1985 production year. The samples consist of 72 dairy farm from the three regions : 33 from Cheju, 20 from Kyungki, and 19 from Chungcheong area. A Cobb-Douglas ( C- D ) frontier production functicn was specified in term of the number of cows, concentrate, roughage, and labor hours, and it ws estimated by Fletcher - Powell-David non - linear optimization algorithm. The dual cost function was numerically de-rived, using the producation function parameter estimates. The technical efficiency indices of Cheju dairy farms ranged from 0.6523 to 0.7207 with mean 0.6925, while the allocative efficiency showed a range of 0.4231-4.6113 with man 0.4796. The quantifiable management factors which can affect farm- level economic efficiency were age, education. and dairy farming experience. Of this, manager's dairy experience was the most important variable which had sieificantly psitive effect on higer tecfnical efficiency. In terms of regional comparisas of technical and allocative efficiencies Cheju had no significant differentials amom the three areas. Only there exists a little difference in technical as well as allocative efficiencies beetween Cheju and Churgchmg areas. The above suggests (i) that, in order to improve the overall dairy economic efficiency in Cheju, more integrated extension program should be created for the dairy farms below average technial and allocative efficiemies,under the local goverment initiatives,and (ii) that, since manager's dairy experience in the most important factor which can affect technical effiaency, dairy experience should be the first consideration of the dairy development polices.

육우품종간의 도체판매가격차와 그 요인 분석

강태숙,김동철 제주대학교 농과대학 제주도축산문제연구소 1986 畜産論叢 Vol.1 No.1

Studies were carried out on 60 imported beef cattle to investigate the relationship between carcass weights and selling prices of Angus, Charolais, Hereford, Angus × Hereford, charolais × Hereford and Charolais × Angus. 1. The average live weight of Charolais (476.5kg) before slaughter was considerably heavier than any other pure breeds. In crossbreds the live weight, before slaughter, of Charolais × Angus(497.1 kg) was heavier than any other crosses. There were significant differences at 1% level betwpen breeds. 2. The greater the live weight was the heavier thecarcass (P< 0.01) but no statistical significant difference were found between dressing out percentage of different breeds. 3. There was m significant difference in average carcass unit price(6,129.9±26.5 won) between breeds. However there was significant differences at 5 % level between the two abattoirs. 4. Carcass selling price between breeds was highly significant but there was no differences in selling price between abattoirs. The selling price of by-products was not significantly different between breeds but was highly significant between abattoirs. 5. The total selling price rose as the live weight of different breeds and carcass unit price increased but there were slight differences between the two abattoirs investigated. 6. The carcass unit price was not related live and carcass weight, however, there was no correlations coefficient between carcass unit price and live or carcass weight. 7. Carcass selling price and total selling price were correlated in the treatments but the by-products selling price bore no correlation to carcass perccctage and carcass unit price.

제주도 낙농발전을 위한 조사연구 : 젖소 개량 프로그램 정립을 위한 연구 ; (1) 젖소 개량의 문제점과 개선방안

강태숙 제주대학교 농과대학 제주도축산문제연구소 1990 畜産論叢 Vol.5 No.1

國內 Holstein 牝牛의 繁殖 및 産乳能力에 關한 調査硏究

康太淑 건국대학교 1976 論文集 Vol.3 No.1

To study breeding and production performances of domestic Holstein-Friesian cow, 133 heads of Seosamneung Dairy Farm and 185 heads of Korea-Germany Dairy Farm herds were sampled. Their herd records were studied in first calving age, calving interval, service per conception, sex ratio of carves, birth-weight, ratio of twinning and multiple births, lactation periods, milk production, butter fat production, butter fat test. These records covered the period of 1969 through July 1975 and the results obtained were as follow : 1.Average first calving age was 29.61 months and average calving interval was 418.40±0.56 days. The second calving showed the longest calving interval of 437.9 days and 350.0 days of 7th calving was the shortest. 2.Between calving interval and calvings, though in low degree, negative(-) correlation was found. (r=-0.093, p < 0.01) 3.Number of service per conception was 2.52 ±0.01. The largest was 3.29 at first calving, and 2.20 of 7th calving was the smallest. 4.Average birth weight was 39.21 ± 0.07kg: bull calves weighed average 40.78 ± 0.08kg, (444 births) 469 heifer calves weighed average 37.72kg respectively. Sex ratio was male 48.63%, female 51.73% showing a slight higher female births. 5.34 twinnings were observed out of 947 births, showing 3.5% and highest in 5th calving, lowest in first calving, 6.Average lactation period was 349.6 days, average prodution per head 4975. 5 ± 17.46kg average daily production 14.23 ± 0.07kg highest at 4th lactation : 6.1kg and 11.5kg at first lactation. 7.Average butter fat production was 185.1kg, the highest at third lactation with 201.18kg, lowest 159.76kg at first lactation. 8.Butter fat test ranged between 3.10-3.79% and had no statistical significance in test and calvings.