• Korean Journal of Veterinary Research
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• v.49 no.1
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• pp.59-62
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• 2009

Susceptibility to chronic wasting disease (CWD) in cervid species has been associated with polymorphisms in the prion protein gene (PRNP). The single nucleotide polymorphisms (SNPs) were found in the PRNP of the Korean subspecies of Chinese water deer via analyses of the DNA sequences obtained from 34 individual deer. Two SNPs were detected at codons 77 and 100. One SNP at codon 77 encoding Glycine was determined to be a silent mutation but the other SNP detected at codon 100 induced an amino acid change, from Asparagine to Serine. The prion protein (PrP) amino acid sequence of the water deer showed 98.8-99.2% homology with those of American elk, white-tailed deer and mule deer. The PrP of the water deer contained amino acid residues closely related with CWD-susceptibility. This study is the first to describe genetic variations in the PRNP of the Korean subspecies of Chinese water deer.

• Journal of Veterinary Clinics
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• v.32 no.4
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• pp.385-388
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• 2015

Three cases of hepatic encephalopathy were diagnosed in scimitar-horned oryxs housed at a zoo. Administration of amino acid and ornithine-aspartate fluid therapy via an intravenous injection decreased serum levels of ammonia and liver enzymes in cases 1 and 2. Further, additional oral ingestion of non-absorbable disaccharide lactulose to eliminate intestinal nitrogenous products enabled recovery of two oryxs. However, in case 3, the serum levels of ammonia and liver enzymes increased even after treatment, and the oryx died. Necropsy revealed cecum and colon compaction due to stiff dried feces, and this condition could have an adverse effect on increased blood ammonia levels that may have caused mortality. Overconsumption of pellets may have been the primary cause of hepatic encephalopathy. Thus, a fiber rich diet with decreased amount of pellets is needed to prevent hepatic encephalopathy, since the normal diet of scimitar-horned oryxs is rich in fiber.

• The Korean Nurse
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• v.5 no.1 s.21
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• pp.32-37
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• 1966

• Journal of the korean veterinary medical association
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• v.39 no.8
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• pp.710-716
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• 2003

• Journal of the korean veterinary medical association
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• v.39 no.8
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• pp.737-743
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• 2003

• Korean Journal of Veterinary Service
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• v.38 no.2
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• pp.137-140
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• 2015

A 2-year-old female lop-eared rabbit (Oryctolagus cuniculus) was presented to the veterinary clinic at a zoo with pruritus, alopecia, and crusting of the ear. Examination of skin scrapes revealed an infestation with the rabbit ear mite, Psoroptes cuniculi. Weekly subcutaneous ivermectin injection over a three-week period resulted in remission of the clinical signs and improvement of the overall conditions of the rabbit.

• Journal of Embryo Transfer
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• v.25 no.3
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• pp.201-206
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• 2010

Two male reticulated giraffes (Giraffa camelopardalis reticulata), 21-year-old, died of nutritional deficiency that primarily caused by serious tooth wear at Seoul Zoo in winter. A 970 kg-weighed giraffe showed tooth wear of premolars, molars and incisors at necropsy. A foreign body in the rumen, congestion and ulcer of abomasum and duodenum were also observed. Mild appearance of serous fat atrophy in pericardial sac suggests that lack of nutritional intake caused by tooth wear can become harmful enough to threat life. At the necropsy of a 1,290 kg-weighed giraffe, a large quantity of sandy soil were found in the rumen which would stuck the pathway of well-fermented ruminal contents at esophageal groove. Nutritional deficiency could be suspected to urge this giraffe to graze grass on the ground along with sandy soil. Secondarily, the soil damaged teeth and become a culprit making irregular tooth wear and mild serous fat atrophy. Nutritionally good care of geriatric animals is needed especially for browsing animals like giraffes and critically in winter season.

• Journal of Veterinary Clinics
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• v.30 no.1
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• pp.22-26
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• 2013

To monitor the reproductive patterns of endangered orangutan, Time-resolved fluorescence immuno assay (TR-FIA) were used to analyze metabolites of sex hormones in feces. Orangutan had long-term interbirth intervals (amenorrhea) during lactation period in which the secretion of sex hormones was repressed. The concentration of progesterone in the serum of pregnant orangutan was 30fold higher than that in non-pregnant orangutan. However, the concentration of hCG during pregnant period was different from the result of other primates. The present study suggested that age is not the important factor in determining the reproduction capability, because it is rather greatly influenced by the combination of various factors. Tracing metabolites of sex hormones in orangutan feces seems to be provide the effective solution for the infertility in orangutan. This study result shows the basic data in operating conservation project for endangered orangutan.

• Parasites, Hosts and Diseases
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• v.22 no.2
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• pp.267-272
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• 1984

In June of 1983 authors had investigated the occurrence of the avian malaria in the Humboldt penguins imported from Japan to the Farmland Zoo in central district of Korea. The disease was characterized by acute course and high mortality. The peripheral blood smears from the affected penguins demonstrated different developmental stages of Plasmodium sp. in the mature erythrocytes. The predominant gross lesions noticed were pulmonary and epicardial edema and hepato-splenomegaly. Microscopically the lesions were characterized by extensive reticuloendothelial cell hyperplasia with striking feature of exoerythrocytic schizogony affecting a variety of tissues. The report also signifies the first description of a disastrous epizootic of avian malaria in Korea.

• Proceedings of the Korean Society of Veterinary Pathology Conference
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• 2003.10a
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• pp.39-39
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• 2003

Balantidiasis is an infectious disease worldwide which is produced by a protozoan Balantidium coli. This single-celled organism is characterized by their large size ranging from 50 $\mu\textrm{m}$ to more than 500 $\mu\textrm{m}$ [1] which indicated by the presence of cilia on its cell surface. The parasite occurs in the lumen of cecum and colon of swine, humans and nonhuman primates as commensal, but can turn opportunist and invade injury tissues by other diseases [2]. It is difficult to diagnose the disease clinically since they are asymptomatic [3]; and can be complicated with other disease or parasitism. Here we report the incidental findings of Balantidiasis in the lymphatic ducts of gastric lymph node of Barbary sheep (Ammotragus lervia). (omitted)