• Animal Bioscience
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• 제35권5호
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• pp.659-669
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• 2022

Objective: Thoroughbred horses have been bred exclusively for racing in England for a long time. Additionally, because horse racing is a global sport, a healthy leisure activity for ordinary citizens, and a high-value business, systematic racehorse breeding at the population level is a requirement for continuous industrial development. Therefore, we established genomic evaluation system (using prize money as horse racing traits) to produce spirited, agile, and strong racing horse population Methods: We used phenotypic data from 25,061 Thoroughbred horses (all registered individuals in Korea) that competed in races between 1994 and 2019 at the Korea Racing Authority and constructed pedigree structures. We quantified the improvement in racehorse breeding output by year in Korea, and this aided in the establishment of a high-level horse-fill industry. Results: We found that pedigree-based best linear unbiased prediction method improved the racing performance of the Thoroughbred population with high accuracy, making it possible to construct an excellent Thoroughbred racehorse population in Korea. Conclusion: This study could be used to develop an efficient breeding program at the population level for Korean Thoroughbred racehorse populations as well as others.

• 한국임상수의학회지
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• 제37권4호
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• pp.217-222
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• 2020

A 3-year-old male Thoroughbred serving as a Korean racehorse named RAON PORTEOUS presented with acute lameness concomitant with edema and fever in the right carpal joint after completing a horse race. Through radiological examination using lateromedial oblique, flexed lateromedial oblique and dorsopromixal-dorsodistal oblique views, the horse was diagnosed with a slab fracture in the 3^rd carpal bone of right forelimb. The fracture was surgically approached and corrected by applying 4.5 mm leg screw fixation during surgery. At eight months post-surgery, the horse was able to return to racing and has had successful racing performances with two wins and several prizes in the last 8 months. This is the first reported case of the successful use of lag screw fixation surgery in Korea with the horse showing complete recovery from a severe injury that is often considered fatal in a racehorse.

• 한국임상수의학회지
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• 제26권1호
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• pp.69-71
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• 2009

A 2-year-old, female Thoroughbred racehorse was referred to the Equine Hospital of Korea Racing Authority. The horse was presented with fluctuant swelling at the base of the left temporal ear tooth. We performed physical examination, radiography and ultrasonography, and diagnosed as dentigerous cyst on the left temporal ear tooth-(dentigerous cyst). The horse was treated with removal of a dentigerous cyst(aural fistula). After surgical procedure for 12 days, the patient was recovered completely.

• 대한수의학회지
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• 제31권2호
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• pp.189-194
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• 1991

Getah virus is known as a causative agent of recognized febrile illness of horses characterized by fever, rash and edema. A serological survey indicated that hemagglutination inhibition antibody against Getah virus was detected in 34% of 464 racehorses from Korean Horse Affairs Association and 57% of 262 ponies from Cheju island, respectively. Several field strains of Getah virus isolated were from the racehorse that have been shown fever and febrile signs in 1989. The field isolates produced cytopathic effect in Vero, MA-104, BHK-21 cell cultures. Especially, they multiplied to the highest titer($10^6TCID_{50}/0.1ml$) in Vero cell cultures. When day-old mice were inoculated with field isolates by the intracerebral route, they showed a typical paralysis sign and died within seven days after inoculation. The guinea pig exhibited skin rash and edema, and died with neural signs after inoculation with the field isolates. In the cross neutralization test and indirect immunofuorescent assay, the field isolates were proved to be closely related to the Sakai strain of Getah virus antigenically.

• 대한수의학회지
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• 제50권3호
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• pp.253-257
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• 2010

A 3-year-old female Thoroughbred racehorse was presented following the accidental oral and skin administration of amitraz. This case report describes the clinical signs and the treatment of this horse. Clinical signs of amitraz toxicosis are associated with the stimulation of alpha2-adrenergic receptors. Amitraz is seldom fatal because the effects can be reversed by alpha2-adrenergic antagonists. The horse displayed typical clinical signs of colic, including pawing, small hard drops, tranquillisation, depression, ataxia, muscular incoordination and impaction colic lasting up to 7 days. The syndrome was accompanied by mild dehydration. The horse survived after persistent symptomatic treatment, including the giving of intravenous fluids, antibiotics, multiple doses of mineral oil per os, nonsteroidal anti-inflammatory drugs and dexamethasone intramuscularly and intravenously.

• 생명과학회지
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• 제28권1호
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• pp.130-139
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• 2018

말을 활용한 경주는 고대 유럽의 여러 국가들에서 마차 경주 혹은 산악 경주 등의 형태로 이루어졌으며, 고대 그리스 올림픽에서 마차 경주가 정식 종목으로 채택되었다. 서러브레드종은 17세기부터 속도, 체력, 그리고 경주 능력을 위해 선택적으로 교배되었다. 그 결과, 18세기부터 귀족들이 향유하는 스포츠로서 서러브레드종을 활용한 경주가 시행되었다. 이후 여러 국가에서 각기 다양한 형태로 발달하여 현재 크게 평지 경주, 장애물 경주, 마차 경주 등으로 발달하였다. 서러브레드 경주마는 300여 년 동안 강력한 선발 육종 전략에 의하여 선택되어 왔기에, 현재 우수한 경주 능력을 갖추고 있다. 말산업은 번식, 조련, 경마 등을 통하여 막대한 경제적 효과를 유발하기에, 말의 경주 능력을 유지하고 극대화하는 것이 필요하다. 최근에 많은 양의 게놈 데이터를 처리하기 위해 차세대 시퀀싱(Next Generation Sequencing; NGS)이 개발되었으며, 이 분석 기술의 현저한 발전을 토대로 우수한 형질을 가진 동물 육종 전략을 쉽게 수행 할 수 있게 되었다. 따라서 뛰어난 경주 능력을 가진 경주마를 선발 육종하기 위해서는 최신 유전체 분석 기술을 활용하는 전략이 필요하다. 본 논문에서는 경주마의 경주 능력을 향상시키기 의한 유전체 분석의 현재의 노력을 알아보고, 마지막으로 경주마와 제주마에서 유전체 분석을 활용하는 전략을 제안할 것이며, 대한민국의 생명자원인 제주마의 선발 육종 전략을 제안할 것이다. 말 산업은 기술, 사회 및 경제 분야에서 인간에게 강력한 파급 효과를 주는 동물 중 하나이다. 우리는 국내 고부가가치 말의 원천적인 유전 정보를 확보하고 선발 육종 할 수 있는 체계적인 기술을 확립하여 생산, 연구 업무 등에 대한 일자리 확보에 기여할 수 있기를 기대한다.

• 한국산학기술학회논문지
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• 제12권4호
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• pp.1756-1762
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• 2011

이 연구 목적은 기수를 대상으로 공복 시 반복적인 모의 경주마 운동 시 그렐린과 관련 호르몬의 관계를 규명하고자 한다. 공복의 기수와 기수후보생들은 경마의 첫 번째 단거리 1000 m, 두 번째 중거리 1700 m 세 번째 장거리 2300 m의 반복적인 모의 경주마 운동 전과 직후 정맥혈을 채혈하여 그렐린, 렙틴, 인슐린, IGF-I과 코티졸을 분석하였다. 피어슨 상관관계에서 기수후보생이 3차 운동 후 글레린과 인슐린 농도가 r= .55를 나타내었다. 기수의 운동 전 글레린과 렙틴 농도가 r= .73으로 운동전 글레린 렙틴 수준이 통계적으로 유의성(p<.05) 있는 관계와 기수후보생이 글레린과 코티졸 농도에서 r= .64를 나타내었다. 글레린 렙틴 인슐린 IGF-1 농도는 운동전에 비교하여 통계적으로 유의성 없이 1차 운동 후 증가와 2차, 3차 감소, 경마기수와 후보생보도 통계적으로 유의성 없는 차이를 나타내었다. 경마기수에 비교 하여 후보생은 1차 2차, 3차 운동에서 통계적으로 유의성 있게 IGF-1는 낮게(p<.05) 코티졸 농도는 높게(p<.001) 나타내었다. 연구결과 반복적인 모의 경주마 운동으로 인한 에너지 소모 반응에서 기수후보생의 3차 운동에서 만이 글레린과 인슐린의 상관관계를 나타내었다.

• 대한수의사회지
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• 제22권2호
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• pp.102-106
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• 1986

This experiment was performed to investigate the levels of hematolgical parameters in Korean racehorses. Animals used were 30hearthy racehorses (male 17, female 13) with about 435kg body weight from 2 to 8 years of age. The number of RBC and platelet, Hb

• 한국임상수의학회:학술대회논문집
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• 한국임상수의학회 2009년도 춘계학술대회
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• pp.244-244
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• 2009

• 대한수의학회지
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• 제32권3호
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• pp.421-427
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• 1992

The study was basically carried out to establish the appropriate condition for applying the Westergren method for erythrocyte sedimentation rate(W-ESR) in Throughbred racehorses at recess. To do this, we examined the correlationship among some factors including the kind of anticoagulants, optimal ambient temperature and reading time for W-ESR in healthy racehorses. The difference between the blood samples treated with only 3.8% solution of sodium citrate(SC) and both EDTA and SC as a coagulant, there was not recognized any significant difference(p<0.05) in the levels of W-ESR irrespective of the ambient temperature of $20^{\circ}C$ or $30^{\circ}C$. The best optimal ambient temperature for W-ESR in horses was proved at $30^{\circ}C$ resulting from the tendency of the most reduced dispersion in mean values analyaed from repeatly 4 times to the same blood samles compared with those of $10^{\circ}C$ and $20^{\circ}C$. The optimal reading time was determined as 60 minutes(Y=237.2~4.1X, $r^2=0.998$) and 70 minutes(Y=247.8~4.2X, $r^2=0.999$) under the same temperature of $30^{\circ}C$; the latter showed the better result on the basis of the correlation of packed cell volume(PCV) and ESR values. About 13 healthy racehorses, we compared the real values of W-ESR respectively obtained at 60 minutes and 70 minutes at $30^{\circ}C$ with the anticipated values of PCV by means of the analysis of linear regression equitation. As the result of this, the strong correlation between both of them was confirmed. For practical use of W-ESR in Thoroughbred racehorese, we can recommend the condition of 60 or 70 minutes for the optimal reading time as well as $30^{\circ}C$ for the best ambient temperature.