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Moon, Hyoung Joon,Oh, Jin Sik,Na, Woonsung,Yeom, Minjoo,Han, Sang Yoon,Kim, Sung Jae,Park, Bong Kyun,Song, Dae Sub,Kang, Bo Kyu 한국조명·전기설비학회 2016 한국조명·전기설비학회 학술대회논문집 Vol. No.
<P>A pandemic influenza A (H1N1) virus strain was isolated from a pig farm in Korea in December 2009. The strain was propagated in and isolated from both the Madin-Darby canine kidney cell line and embryonated eggs. The partial and complete sequences of the strain were identical to those of A/California/04/2009, with >99% sequence similarity in the HA, NA, M, NS, NP, PA, PB1, and PB2 genes. The isolated strain was inactivated and used to prepare a swine influenza vaccine. This trial vaccine, containing the new isolate that has high sequence similarity with the pandemic influenza A (H1N1) virus, resulted in seroconversion in Guinea pigs and piglets. This strain could therefore be a potential vaccine candidate for swine influenza control in commercial farms.</P>
Complete Genome Analysis of Porcine Enterovirus B Isolated in Korea
Moon, Hyoung-Joon,Song, DaeSub,Seon, Bo Hyeon,Kim, Hye-Kwon,Park, Seong-Jun,An, Dong-Jun,Kim, Jong-Man,Kang, Bo-Kyu,Park, Bong-Kyun American Society for Microbiology 2012 Journal of virology Vol.86 No.18
<P>The complete genome sequence of porcine enterovirus B (PEV-B) from a Korean isolate was analyzed. The genome size was 7,393 bp. Previously, full genome sequences of PEV-B had been reported from the United Kingdom, Hungary, and China. The Korean PEV-B isolate presented polyprotein gene nucleotide sequence similarities of 77.9, 73.7, 78.9, and 80.3%, respectively, to PEV-B UKG/410/73, LP54, PEV15, and Chinese strains (Ch-ah-f1).</P>
Effect of the drug containing toltrazuril and iron on anemia in suckling piglets
Hyoung Joon Moon,Hwan Goo Kang,Gye-Hyeong Woo 한국실험동물학회 2021 한국실험동물학회 학술발표대회 논문집 Vol.2021 No.7
Newborn piglets are likely to develop anemia because they do not receive enough iron from the sows milk until weaning. Piglets raised in natural conditions can get enough ion from the soil, but now they are usually raised indoors on concrete, metal, or plastic floors so iron supplements are required. Anemia is caused by low iron levels in hemoglobin, the part of the blood that carries oxygen through the body and causes grow impairment in piglets. Piglets with anemia become pale and fluid accumulates around the larynx, chest, and body space. Anemic piglets generally have diarrhea and are less resistant to the environment or diseases. In untreated piglets, about 10% mortality occurs before weaning. In general, iron supplements are administered between 1 and 3 days of age for the purpose of preventing anemia in piglets. In this clinical field study, we was carried out to determine the field efficacy of a novel injectable formulation containing toltrazuril and iron (test drug) compared to a positive control drug with a commercial iron, for anemia treatment effect in suckling piglets on commercial farms. 80 animals were randomly selected from 8 pregnant sows and 40 animals were allocated per group. The test drug and the positive control drug were administered to 40 piglets of each group at the time of 3 days of age after delivery. After administration, the clinical symptoms of all piglets were observed daily, and blood samples were collected using anticoagulant tube on the day of administration (3 days old) and 16 days old (13 days after administration). To observed the effect on anemia in offspring, PCV, RBC count, hemoglobin concentration, MCH, and MCHC were examined using HEMAVET 950FS (Drew Scientific Group). At the same time, the weight of animals at the age of 3, 16, and weaning was measured to determine the weight gain. The concentration of hemoglobin, an anemia indicator, was significantly different between the two groups at 16 days of age (p<0.01), but all were within the normal range physiologically. There was no significant difference between the two groups in the number of red blood cells and hematocrit, which are reference indicators of anemia, and the number of RBCs and hemoglobin increased to the level of the normal physiological range by administration of the test and positive control drug. The number of RBCs in test group was higher than that of the positive control group. No side effects including redness, swelling, and induration, were observed in all piglets treated with the test and positive drugs. In conclusion, this study proved that the administration of 3-day-old piglets with test drug in a domestic farm environment is effective in preventing anemia in piglets. A single intramuscular administration of test drug (toltrazuril and iron mixture) is safe and effective in controlling piglet anemia, as well as reducing the number of injections and corrections to reduce stress on piglets and managers. Acknowlegement: This study was conducted with the support of Elanco Animal Health Korea co., LTD. We would like to express our gratitude to Professor Jae-hoon Kim of Jeju National University, Dr. Seok Jun Yoon, and Dr. SooHwan Kim of Elanco Animal Health Korea co., LTD who helped in this study.
Hyoung-Joon Moon,Seong-Jun Park,김혜권,Soo-Kyung Ann,Semi Rho,Hyun-Ok Keum,Bong-Kyun Park 대한수의학회 2010 Journal of Veterinary Science Vol.11 No.3
The purpose of this study was to develop a multiplex PCR that can detect porcine endogenous retrovirus (PERV)proviral genes (pol, envA, envB, envC) and porcine mitochondrial DNA, using a dual priming oligonucleotide (DPO) system. The primer specifically detected the PERV proviral genes pol, envA, envB, envC, and porcine mitochondrial DNA only in samples of pig origin. The sensitivity of the primer was demonstrated by simultaneous amplification of all 5 target genes in as little as 10 pg of pig DNA containing PERV proviral genes and mitochondrial DNA. The multiplex PCR, when applied to field samples,simultaneously and successfully amplified PERV proviral genes from liver, blood and hair root samples. Thus, the multiplex PCR developed in the current study using DPO-based primers is a rapid, sensitive and specific assay for the detection and subtyping of PERV proviral genes.
Avulsion fracture of the tibialis posterior tendon caused by repetitive stress during squats
Joon Yub Kim,Seung Joon Moon,Hyoung Soo Kim,Joo Hak Kim,Ki Hyuk Sung,Tae Hoon Kim 대한정형외과 스포츠의학회 2015 Arthroscopy and Orthopedic Sports Medicine Vol.2 No.1
An avulsion fracture of the tibialis posterior tendon is a rare injury. We experienced a neglected case of a tibialis posterior tendon avulsion fracture in a 71-year-old male patient, who had squatted with weights on a daily basis. We postulated that the repetitive stress on the tibialis posterior tendon caused the fracture during squats.