Horse leg bone has been used as a traditional folk medicine for the sick and weak. Bone primarily contains collagen, a key building block of cells for bones, cartilage, and ligaments. In our previous study, horse leg bone hydrolysates showed anti-oxidation and skin protection effects against UV light. The aim of this study was to evaluate the quality of jelly containing Jeju crossbred horse leg bone hydrolysates at 0.3 (HLBH 0.3), 0.5 (HLBH 0.5) and 1.0% (HLBH 1.0). The HLBH 1.0 showed the highest pH and Brix values compare to control. Lightness (L*) and redness (a*) of HLBH 1.0 showed the lowest value compare to other treatments. However, yellowness (b*) of HLBH 0.3 and 0.5% was increased significantly with increasing levels of Jeju crossbred horse leg bone hydrolysates (p<0.05), while HLBH 0.5 and HLBH 1.0 showed no significant difference. Hardness and chewiness of jelly was decreased with increase of HLBH up to 0.5%, whereas no significant difference was found between HLBH 0.5 and 1.0. In sensory evaluation, panels did not tell the difference of jelly with different level of HLBH in all sensory factors likely color, appearance, flavor, chewiness, taste, and overall acceptability. This result suggests that Jeju crossbred horse leg bone hydrolysates can be used up to 1% without any significant bad influence on quality and sensory characteristics of jelly.

본 연구는 제주도에서 사육되고 있는 한국 제주마의 혈통정보를 이용하여 근교계수 및 유효집단크기를 추정하여 제주마 집단의 구성 현황을 파악하고 향후 집단 유지 또는 개량하는데 기초자료로 활용하고자 한다. 제주특별자치도 축산진흥원의 제주마로 등록관리 되고 있는 2,486두의 혈통자료를 분석에 이용하였다. 세대별 평균 근교계수는 0.6~5.0%의 분포를 나타냈으며, 4세대 이후 세대가 증가할수록 근교계수는 증가하는 경향을 보였다. 평균세대간격은 9.22년으로 추정되었으며, 아비에서 아들 8.14년, 아비에서 딸 7.93년, 어미에서 아들 9.83년, 어미에서 딸은 10.66년으로 추정되었다. 출생년도에 따른 유효집단의 크기는 1.03두부터 128.23두까지로 추정되었으며 집단을 안정적으로 유지하기에는 어려움이 있을 것으로 사료된다. 따라서 제주마의 안정적인 집단의 유지를 위해서는 태어나는 모든 수말과 암말을 적절히 교배에 활용하여 제주마의 유전적 다양성을 확보하여야 할 것으로 판단된다.

Horses are non-ruminant and monogastric animal. If concentrates are fed plentifully at a time, undigested starch reaches large intestine and it activates amyloytic bacteria. Finally, it lowers a pH level and causes colic. Therefore, standard feed of concentrates and period of feed are important factors to fat up horses. This study was conducted to evaluate the productivity and carcass quality, quantity grade for Jeju horse (24 month old) with different fattening periods (4-, 8- and 13.5-month). The body weights were increased as the fattening periods increased and the increase rate was highest at 4-month group. The daily weight gain was decreased as the fattening periods increased such as 0.46 kg for 4-month group, 0.39 kg for 8-month group and 0.34 kg for 13.5-month groups. The daily intake was increased as the fattening periods increased such as 4.42 kg for 4-month group, 5.00 kg for 8-month group and 5.26 kg for 13.5-month groups. The daily feed conversion was increased as the fattening periods increased such as 11.71% for 4-month group, 17.69% for 8-month group and 18.53% for 13.5-month group. The backfat thicknesses and loin-eye areas were 3.50 mm, 83.50 ㎠ and increased to 4.20 mm, 94.00 ㎠ until they were fattening up for 8-month then they were decreased to 4.00 mm, 89.40 ㎠ when they were fattening up to 13.5-month. There was no significant difference in the meat color among 3 fattening groups, however, the a-values (redness) of meat color and b-values of fat color were highest (5.0 and 3.80, respectively) for 13.5-month group. The texture was not significantly different among 3 fattening groups. The maturity levels were in the 3.8∼4.5. All horses used in the experiment had the quality grade 2 and the horses for 13.5-month group had the quantity grade A, whereas the horses for 4-month group had the quantity grade B or C. Jeju horse had the low quality grade (quality grade 2) although the carcass yield increased when they were fattened from 24 month to 37.5 month.

Recently, luxury markets have been flourishing in East Asian and Western cultures.. At the same time, there is a shift from consumption motives like prestige and conspicuousness towards hedonism, experience and individualization. Based on the demand for appropriate marketing strategies, we develop a framework which links one-to-one marketing to luxury.

말의 형태는 기능적으로 개별적으로 실행 할 수 있는 능력과 연관이 깊다. 또한, 진화론적 관점으로 말의 형태는 말이 요구되는 일의 유형에 따라 적합하게 변화되어야 한다. 제주마의 경우에는 체형이 작고, 근육의 탄력이 적은 특징을 가지고 있다. 위 특징은 제주마가 국내의 경우 과거에 짐의 운반과 경운에 유용하게 이용되어졌음을 의미한다. 오늘날 말들은 거의 경주마로써 육성되고 있다. 본 연구의 목적은 말의 형태와 경주능력간의 관계에 대해 규명하고, 이 관계는 우수한 육종가의 선발에 사용될 수 있음을 기대한다. 본 연구는 경주성적이 있는 제주마 92 두와 더러브렛종 81두의 골격근 18 개 부분과 형태와 체고를 직접적으로 측정하여 확인했다. 또한, 실측 체고치와 측면 이미지 자료로부터 17 부위의 길이를 쟀다. 연구에 사용된 경주기록은 2002 년 2 월부터 2004 년 11 월까지 제주 경주 공원으로부터 수집하여 사용했고, 통계분석은 SAS프로그램을 사용하여 PRINCOMP와 GLM을 분석 실시하였다. 성, 나이로 그룹을 설정하여 GLM의 다양성에 따라 분류하여 주성분분석을 실시한 결과, 제 1~6 주성분 PCs 간의 전체 변이는 67.1%로 계산되었고, 경주수행정도는 속도 어깨와 목길이가 길고 전박장과 엉덩이 길이가 짧은 특징을 나타낸 제 2 주성분(PC2)에 유사하게 상관되게 측정되었다(P<.001). 위 결과에 따르면 말의 여러 가지 형태적 특징 중, 말의 목 하단길이와 견갑골이 길며, 전완골과 정강이가 짧은 형태를 가질 경우 빠르게 달릴 수 있다는 것으로 나타났다. 이러한 연구 결과는 제주마의 경주 속도가 일반적인 형태적 균형에 의해 좌우될 수 있다는 개념을 시사한다. 또한, 본 연구는 더 많은 데이터가 있었다면, 조사의 정확성이 향상될 수 있음을 시사한다.

Cryopreservation induces sublethal damage to the spermatozoa, which leads to their reduced fertile life. This study was designed to determine effect of glycerol and ethylene glycol as cryoprotectant in extender on improve the freezability of Jeju horse semen. The semen was cryopreserved with glucose-EDTA extender containing each 5% glycerol, 5% ethylene glycol, 8% glycerol or 8% ethylene glycol, respectively. Post-thawed sperm were evaluated motility, viability, Membrane integrity and acrosome integrity. Post-thawed sperm motility were not significantly differences among treatments. However, sperm viability were significantly higher (p<0.05) in 8% glycerol (39.85% ±11.41) than in 5% glycerol treatment (18.08%±1.61). In membrane integrity, swelling sperm ratio was significantly higher (p<0.05) in 8% glycerol (34.12%±11.02) than other treatments. In the percentage of capacitated sperm assessed by CTC staining, F pattern was significantly higher in 8% ethylene glycol than 5% glycerol and 5% ethylene glycol (p<0.05). B pattern ratio was significantly increased in 5% ethylene glycol compared with 8% glcerol and 8% ethylene glycol (p<0.05). Moreover, 8% ethylene glycol treatment was significantly decreased AR pattern ratio compared with other treatments (p<0.05). It is concluded that treatment of 8% glycerol was improved the sperm viability and 8% ethylene glycol was improved the sperm ascrosome integrity after thawing. However, they were not significantly difference between 8% glycerol and 8% ethylene glycol on post-thawed sperm viability. Therefore, 8% ethylene glycol was more effective sperm cryoprotectant than 8% glycerol in Jeju Horse.

A four-year-old thoroughbred male horse (450 kg) who behaved in an aggressive manner toward people and other horses was referred to undergo castration surgery at the Equine Hospital, Jangsu Stud Farm and Training Center, Korea Racing Authority. Castration was performed by a closed technique using sedation (detomidine 10 mg IV) and regional anaesthesia (lidocaine) on a line 1 cm from the median raphe while the horse was standing. Incisions were made through the scrotal skin, tunica dartos, and scrotal fascia for each testis parallel to the median raphe, which was approximately 10 cm long. The testis, still capsulated by the parietal vaginal tunic, was grasped and the scrotal fascia was stripped upward from the parietal vaginal tunic using dry gauze. Then the parietal vaginal tunic, cremaster muscle, and spermatic cord were emasculated. The surgical area was disinfected without suturing. An anti-inflammatory drug (phenylbutazone) and antibiotics (benzylpenicillin + dihydrostreptomycin) were prescribed for seven days following surgery. Mild swelling and hemorrhage were observed around the region of surgery on the first day following the operation. Seven days later, no swelling or hemorrhage was observed, while formation of granulation tissue was observed in the scrotum, indicating a normal healing process.

The purpose of this study is to examine the influence of a horse riding simulator and galvanic vestibular stimulation on improving the ability to balance posture and proprioception. Thirty healthy adults participated and were randomly assigned to a horse riding simulator group (=10), galvanic vestibular stimulation (GVS) group (=10), control group (=10). Experiment groups were trained 3 times per week over 6 weeks. The ability to balance posture was measured by force plate and proprioception was measured by Joint position sense. The following results were obtained. the changes of balance index were significant interaction in each group in accordance with the experiment time in 0, 3 and 6 weeks (p<.05). All groups showed the most decreasing pattern compared with the control group. But was not statistically significant. Proprioception was significant interaction in each group in accordance with the experiment time (p<.05). All groups showed the most decreasing pattern compared with the control group. The above results indicated that the 6 weeks horse riding simulator and galvanic vestibular stimulation training demonstrated positive effects in the ability to balance posture and proprioception. These results suggest that the horse riding simulator and galvanic vestibular stimulation training could be therapeutic intervention that can improve balance and postural control.

Horse population has been gradually increasing with the growth of the racing industry in Republic of Korea (ROK). Approximately 22,941 horses including native ponies were raised on 1,142 farms in 2006. Great care has been taken to prevent viral, bacterial and parasitic infections in horses. However, there has been few reports on equine infectious anemia (EIA) in ROK until recently since 1987. Therefore, we conducted a serological survey of EIA in ROK from 2007 through 2009. Using the agar gel immunodiffusion test, a total of 2,601 horses were tested in Foreign Animal Disease Division of Animal, Plant, and Fisheries Quarantine and Inspection Agency. This survey found no serological evidence of EIA presence in ROK. Although our surveillance found no evidence of EIA in ROK during the surveillance period, it is possible that EIA could be introduced into ROK in the near future. Increased cooperation between the government and other agencies, such as horse-racing authorities, is important for both the early detection of the disease and the development of effective veterinary and public health strategies.

본 연구는 제주조릿대의 성장단계별 영양소 함량을 분석하고 말에서의 소화율을 검정하여 말 사료자원으로써의 활용가치를 평가하고, 제 주조릿대 군락지 내 말 방목에 따른 제주조릿대의 생산성, 생육특성, 주변 식생의 변화 등을 구명하기 위해 수행되었다. 제주조릿대를 구초 (1년생)와 신초 (당년생)의 성장단계로 분류하여 조단백질, NDF, ADF 및 무기물 함량을 분석했다. 제주마 5두를 이용 제주조릿대 구초와 신초의 전분채취법을 이용한 외관상 소화율을 검정했

This experiment was conducted to compare forage production and grass intakes of warm season grasses for grazing horses in Jeju. The experimental field located at 450m altitude(Jeju Horse Training Center of Korea Racing Association) was divided into 3different treatment plots(3replications) without a fence between treatments, and sown by three treatments(bermudagrass, bahiagrass, bermudagrass+bahiagrass mixture). Three castrated adult horse a were kept on pasture from the 1 of October to the end of October without supplementary concentrates. 'Bahiagrass' cultivar showed the highest dry matter (DM) yield with 8,887㎏/㏊ than those in other treatments (bermudagrass 8,699, bermudagrass+bahiagrass mixture 8,385㎏/㏊). The percentage of grass intakes was higher in the treatment of bahiagrass(92%) than those in other treatments(bermudagrass+bahiagrass mixture 89, bermudagrass78%). The results indicate that the warm season grasses of bermudagrass, bahiagrass, bermudagrass+bahiagrass mixture can be used for grazing pasture of horses in the Jeju.

The object of this study is to investigate the penetration characteristics according to the change of stacking sequences and curvature radius in the composite laminated shell. They are staked to [02/902]S and [0/902/0]s, their interlaminar number are two and four. We are manufactured to composite laminated shells with various curvature radius. Curvature radius of composite shell is 100, 150, 200mm and ∞(it's meaning flat-plate). In general, kinetic energy after impact-kinetic energy before impact increased linearly in all specimens. Absorbed energy increased linearly as the curvature increased, and absorbed energy of [02/902]S specimen, which is small interlaminar number, was higher than [0/902/0]s specimen.

This study purports to investigate ways to apply the activity of knowledge construction while performing the tasks according to each phase in the Vaulting Horse. There were 36 subjects in the control group and 32 in the experimental group who were all fem