• Feed Journal
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• v.3 no.11 s.27
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• pp.118-123
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• 2005

"소의 질병 중에서 설사증은 송아지에서 가장 빈번히 발생하고 있으며, 전체 송아지 폐사 원인의 70$%$에 이를 정도로 막대한 경제적 피해를 입히고 있다. 송아지 설사증은 크게 바이러스성, 세균성, 원충성 질병에 의하며, 이 중에서 가장 문제를 일으키고 있는 것이 바이러스성 송아지 설사라 할 수 있다. 국내에서 잘 알려진 바이러스성 송아지 설사"

• KAPE Magazine
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• s.174
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• pp.6-7
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• 2011

소 로타바이러스 설사병은 송아지 특히 생후 2주 이내의 어린 송아지에 심한 물똥설사를 일으키는 바이러스성 질병으로 전염성이 극히 높은 소의 급성 전염병으로 로타바이러스가 원인체이다. 전 세계적으로 널리 발생되고 있으며 우리나라에서도 바이러스성 송아지 설사병 중에서 가장 문제시 되고 있다.

• 월간낙농육우
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• v.31 no.1
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• pp.96-108
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• 2011

추위스트레스는 송아지 면역저하의 원인이 되어 설사병 발생 가능성을 더욱 높게 할 수 있다. 특히, 최근에 송아지 가격 하락으로 인하여 정상적인 사양관리가 이루어지지 못함으로 인하여 송아지 사육두수 증가에 의한 밀집사육에 의한 스트레스가 더욱 증가하여 설사병 노출 가능성이 많아질 수 있다. 송아지 설사병 발병시 성장 지연을 초래하거나 심하면 폐사하게 되어 농장의 막대한 경제적 손실을 가져오게 된다. 따라서 이번 호에서는 혹한기에 송아지에서 가장 문제되고 높은 폐사율을 보이는 설사병의 원인 및 예방대책에 대하여 소개하고자 한다.

• Korean Journal of Veterinary Research
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• v.37 no.1
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• pp.155-159
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• 1997

Torovirus-like particles이 심급성의 설사로 폐사한 송아지의 분변으로 부터 검출되었다. 설사로 폐사한 송아지는 2주령으로 설사증상을 보인 5두중 2두였으며 심한 설사증상을 보인지 24시간만에 급성폐사를 나타내었다. 나머지 3두도 심한 설사증상을 보였으나 항생제 및 수액요법으로 치료를 한 후 회복되었다. 전자현미경으로 관찰된 바아러스 입자는 Woode et al이 관찰한 Torovirus 입자와 동일하였으며 그 크기는 원형입자일 경우 70~90nm의 크기로 8~10nm의 Peplomer를 가지고 있었다. 그러나 바이러스이 입자형태는 소, 돼지 그리고 사람에서 보고된 Torovirus와 마찬가지로 다양하였으며 Tube 형태로 된 것은 길이가 약 150nm에 달하기도 했다. 이 보고는 국내에서의 송아지 Torovirus 감염증의 첫 보고이며 국내에서도 Torovirus가 존재한다는 것을 입증한 것이다.

• Journal of Veterinary Clinics
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• v.27 no.3
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• pp.220-224
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• 2010

Bovine viral diarrhea virus (BVDV) is an important worldwide disease in the livestock industry. To characterize BVDV circulating in Gyeongbuk province in the Republic of Korea which has the highest cattle population density, 365 rectal swabs from clinically BVDV Korean indigenous calves were collected. Fifty cases were identified as positive for BVDV. A phylogenetic analysis of 5'- untranslated regions (UTR) revealed that most of our cases belonged to BVDV-2a (n = 48), while only two cases were classified as BVDV-1a (n = 1) and 1b (n = 1), respectively. These results indicated that BVDV-2a is the most prevalent subgroup in Korean indigenous calves of Gyeongbuk province.

• Journal of Veterinary Clinics
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• v.26 no.6
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• pp.578-581
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• 2009

A 25-day-old, Korean indigenous calf was presented with a 10 days history of respiratory disorders and bloody diarrhea, and died. This calf was extremely unthrifty compared to others and had evidence of chronic diarrhea based on matting of feces in the hair of the tail and perineum. Ecchymotic hemorrhages were observed on multiple organs at necropsy. Bovine viral diarrhea virus (BVDV) infection was identified by RT-PCR. The phylogenetic analysis showed that this case belonged to BVDV-2a subgroup and was related to highly pathogenic USA isolate 890 (U18059). This case provided evidence for circulation of BVDV-2 in Republic of Korea. The occurrence of BVDV-2 was also reconfirmed.

• Journal of Veterinary Clinics
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• v.27 no.6
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• pp.635-639
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• 2010

The prevalence of bovine viral diarrhea virus (BVDV) in Korean indigenous calves with diarrhea in Gyeongbuk province was investigated. Seventy-five cases were identified as BVDV positive in the diarrhea stools. Phylogenetic analysis revealed that all our cases were classified as BVDV-2a. Most of the present BVDV-2a cases were isolated from calves showing clinical signs of watery diarrhea. Our observations indicate that not all BVDV-2 infections cause clinically severe disease. This study shows the high incidence of BVDV-2 infection in Gyeongbuk province. Therefore, the results suggest that a vaccine development and immunization strategies are required for the effective control of BVDV infection in the Republic of Korea.

• Proceedings of the Korean Society of Veterinary Clinics Conference
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• 2006.11a
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• pp.63-63
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• 2006

• Korean Journal of Veterinary Research
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• v.38 no.2
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• pp.366-370
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• 1998

To determine the efficacy of immunotherapeutic agents, four female Holstein calves 7-day-old were inoculated per os with $1{\times}10^7$ C parvum oocysts (VRI-CN91). Each calf received twice daily oral dosage of 200-500ml of the immune bovine serum, immune bovine colostrum, mAb C6, and phosphate-buffered saline, respectively. Treatment was initiated 4 days postinfection and laster 3 days. The clinical sign of the calf treated with phosphate-buffered saline lasted 9 days after the initial treatment. The calves treated with those immunotherapeutic agents, however, showed decreased severity of diarrhea at day 3, 2, 5 after the initial administration, respectively. The calves treated with immunotherapeutic agents showed reduced parasite loads compared to control calf. These results suggest that oral passive immunotherapy with immune bovine colostrum and immune bovine serum may be a useful treatment approach.

• Journal of Korea Entertainment Industry Association
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• v.13 no.8
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• pp.335-343
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• 2019

Healthy living is an essential element of human happiness. Quality eating provides the basis for life, and the health of livestock, which provides meat and dairy products, has a direct impact on human health. In the case of calves, diarrhea is the cause of all diseases.In this paper, we use a sensor to measure calf 's biometric data to diagnose calf diarrhea. The collected biometric data is subjected to a preprocessing process for use as meaningful information. We measure calf birth history and calf biometrics. The ontology is constructed by inputting environmental information of housing and biochemistry, immunity, and measurement information of human body for disease management. We will build a knowledge base for predicting calf diarrhea by predicting calf diarrhea through logical reasoning. Predict diarrhea with the knowledge base on the name of the disease, cause, timing and symptoms of livestock diseases. These knowledge bases can be expressed as domain ontologies for parent ontology and prediction, and as a result, treatment and prevention methods can be suggested.