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RISS 인기검색어
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- 저자 : 기광석 ( K S Kee ) (검색결과 3 건)
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젖소의 행동결정을 위한 Ethosys System 의 평가에 관한 연구
기광석,( Kwang Seok Ki,Kees de Koning ) 한국축산학회 1998 한국축산학회지 Vol.40 No.5
A short experiment was carried out to get more information about the use and the accuracy of the Ethosys system. The Ethosys system manufactured by IMF Technology GmbH (Germany) is an individual monitoring system for analysing the behaviour of vertebrates. The Ethosys system was compared with the data set of the automatic feeding system and the results of the video recording system. The research was carried out at the IMAG-DLO experimental farm. All data were transformed to 10 min values and expressed as a percentage of the 10 min interval. The experiment was carried out with four lactating cows during three days. For the analysis 48 hours were used, starting on 00: 00 h on day 1 and ending on 24:00 h on day 2. Although the Ethosys system can record the feed intake of cows, especially roughage, there could not be found a good relationship between the time the cows spent at the feeding places and the Ethosys feeding values. The Ethosys system cannot record lying patterns of cows. The current Ethosys system cannot be used in the experiments with automatic milking and grazing of cows in regard to the demands of IMAG-DLO. Nevertheless there seem to be some possiblities to improve the results. Further research is needed.
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착유우의 톱밥발효우사 이용연구 제 1 보 : 낙농가의 톱밥발효우사 형태별 이용효과 비교
권두중,권응기,기광석,이기종,한정대,정석찬,강승원,강상열,정형섭,장학주,Kweon, Du-Jung,Kweon, Ung-Gi,Ki, Wang-Seok,Lee, Kee-Jong,Han, Jeong-Dae,Jung, Suk-Chan,Kang, Seung-Won,Kang, Sang-Lyol,Jung, Hyoung-Sup,Chang, Hak-Joo 한국축산환경학회 1995 축산시설환경학회지 Vol.1 No.1
This study was carried out to investigate the effect of sawdust bedding barn on manure handing, management labour and physiological aspect of dairy cows, and then to establish the criteria on the optimum utilization method of sawdust bedding barn. 46 tie stall barns and 49 sawdust bedding barns were surveyed to cmopare the milk productivity between two different barns, and also 5 tie stall barns, 15 sawdust bedding barns and 1 rice hull bedding barn were selected to study the utilization situation of sawdust barn in Kyung-Ki province area. The major results obtained were as follows; 1. The roof material of sawdust barn were consisted of 66% vinyl house, 23% PVC light and 11% slate and galvanum coated tin. Most of the floor structure was earth ground with the rate of the approximately 82%. 2. The average occupied area of sawdust bed per cow was 15.2 $m^2$, depth that 30 cm and the utilization period was 12 months. 3. Milk Yield was significantly higher at sawdust barn than at tie stall barn(P<0.01). Bacterial and somatic cell count in raw milk were less at the sawdust barn than in tie stall barn. However, there was not significance difference between two barns. 4. The labour hour needed to cow management in the sawdust barn was approximately 48% of that of tie stall barn. 5. The temperature and moisture content measured in sawdust bed were closely affected by seasonal ambient temperature. The skin and hair of cow were much cleaner at the PVC light roofed sawdust barn than any other roof materials. 6. The additives used for improving of fermentation did not show any effect on temperature and moisture content in sawdust bed. When the ambient temperature was $30.4^{\circ}C$, the surface temperature of measured 1 cm above the sawdust bed was $12.2^{\circ}C$ lower and the temperature of 100 cm above the sawdust bed was $2.4^{\circ}C lower under shading net facility than that of vinyl roofed one.7. The hoof length of miking cow was 7.95 cm in tie stall and 9.19 cm in sawdust barn with high significance (P<0.01). And disease occurence such as mastitis and foot-rot tended to decrease in the sawdust barn. 8. The number of total bacteria and coliform bacteria were less in the sawdust bed compared with earth ground resting area. And a parasite strongyloides papillosus was detected but without any infected cow. 9. The nitrate($NO_3N$) content in non-roofed earth ground resting area and earth ground under the sawdust bed was likely to pollute the ground water. 10. In economic point of view, rice hull bedding barn was the cheapest among different systems. And in the sawdust bedding barn PVC light + slate roofed barn was most desirable, and vinyl roofed one the least.
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