• 대한수의학회지
• /
• 제33권4호
• /
• pp.763-772
• /
• 1993

In the present communication literatures pertaining to the coat color of Jindo dogs, the natural monument of Korea, have been reviewed. It was reported that there were seven different coat colors in Jindo dogs. They are yellow, white, red, black, tiger-like, grey, and spotted. The yellow and red dogs have typical color markings called "Yibaik", and black dogs have yellow or white color markings called "Nenoonbagi". All Jindo dogs, which have 7 different coat colors with typical color markings, could be found nowadays. The pictures of those Jindo dogs were taken and presented in this communication. It was felt that the coat colors of Jindo dogs should not be limited to yellow and white. And Jindo dogs should be judged not by their coat color but by their noble characteristics.

• 한국임상수의학회지
• /
• 제37권2호
• /
• pp.67-74
• /
• 2020

The purpose of this study is to identify clinical features of sound (non-lame) dogs with medial patellar luxation (MPL). Medical records of 72 dogs diagnosed with MPL were retrospectively reviewed. There were no significances in breed, sex, body weight, body condition score (BCS), osteoarthritis (OA) score, inclination of the femoral head angle (IFA), and mechanical medial proximal tibial angle (mMPTA) between sound and lame dogs, respectively. The mean age of sound dogs was significantly higher than that of lame dogs (P < 0.05), especially in MPL grade 3. The frequency of sound dogs with MPL grade 1 and 2 was 2.3 times higher than that of sound dogs with MPL grade 3 and 4 (P < 0.05). The anatomical lateral distal femoral angle (aLDFA) of sound dogs was significantly lower than that of lame dogs (P < 0.05). However, there were no statistical differences in aLDFA between sound and lame dogs in MPL grade 1, 2, and 4, except for MPL grade 3. This study suggests that in case of MPL grade 1 and 2, frequency of sound dogs is significantly high, and also that in MPL grade 3, if mean ± (standard deviation) age of the dogs is 7.4 ± 3.6 years old and the aLDFA is 105.6 ± 4.1 degrees, they are very highly possible to be sound dogs.

• 대한수의학회지
• /
• 제33권1호
• /
• pp.43-51
• /
• 1993

Mitochondrial DNA(mt DNA) of Mammalian is the circular one which the 16.5K base pairs and show the maternal inheritance. Evolutional speed of nucleotide sequence is very fast. So that polymorphic analysis of mt DNA provide the useful informations to investigate the genetic relations of interspecies. Authors trials were focussed to compare with the polymorphic differences of mitochondrial DNA between Jindo and Japanese mongrel dogs. DNA was extracted from bloods of 21 head of Jindo dogs and 20 head of Japanese dogs and isolated using 10 kinds of restriction endonucleases(Apa I, BamH I, Bgl II, EcoR I, EcoR V, Hinc II. Hind III, Pst I, Sty I, Xba I) and then separated by the agarose gel electrophoresis. After sourthern blotting hybridization was completed using the mtDNA of Japanese mongrel dogs as a probe. Autoradiography was used to compare the polymorphism of mtDNA both dogs. The results obtained were as follows; 1. mt DNA of Jindo dog showed polymorphism resulting cleavage with four kinds of restriction endonuclease, Apa I, EcoR V, Hinc II, Sty I. While in the Japanese mongrel dogs observed the polymorphism in the five kinds of restriction endonuclease supplemented with EcoR I. 2. Compared with both dogs the frequency differences of DNA polymorphism were recognized in the specific restriction endonuclease Apa I. Consequently in the restriction endonuclease Apa I both dogs classified with three types as A, B, C however in the Jindo dogs frequency of C type was 71.5 percent but in Japanese mongrel dogs observed 45 percent in the A type. 3. DNA polymorphism obtained from the use of five kinds of restriction endonuclease were classified with seven types. In Jindo dogs frequency was highest in the type 6 as 71.4 percent but in the Japanese mongrel dogs showed 35 percent in the type 5. 4. Genetic distances calculated by NEI method showed 0.0089 in Jindo dogs and was 0.0094 in the Japanese mongrel dogs.

• 한국임상수의학회지
• /
• 제40권3호
• /
• pp.182-188
• /
• 2023

Sarcopenia and myosteatosis can increase the risk of adverse effects in dogs and humans. However, such imaging study results for evaluating sarcopenia and myosteatosis in small dogs have not yet been available. The objective of this study was to assess age-related changes according to the breed in epaxial muscle cross-sectional area (CSA) and fat infiltration using CT to evaluate sarcopenia and age-related myosteatosis in small breed dogs. In 144 dogs (92 Maltese dogs, 27 Poodle dogs, and 25 Shih Tzu dogs), Hounsfield Unit (HU) values and CSA of left epaxial muscle were measured at the thirteenth thoracic vertebral level on non-contrast transverse CT images. Differences in HU values and CSA according to age and breed were analyzed. The geriatric group (≥12 years) had significantly lower HU values of epaxial muscle than mature adult group (2 to 6 years) of all breeds. The geriatric group had significantly lower CSA of epaxial muscle than mature adult and senior groups (7 to 11 years) of Maltese dogs. HU values of epaxial muscle were not significantly different among all age groups of all breeds. Maltese dogs had significantly lower CSA of epaxial muscle than Poodle and Shih Tzu dogs in all age groups. Results of this study showed that as age increased in small breed dogs, muscle mass and density decreased.

• 한국동물위생학회지
• /
• 제32권4호
• /
• pp.377-380
• /
• 2009

Dogs with canine babesiosis may present with wide variation in the severity of clinical signs, ranging from a hyperacute, shock-associated, hemolytic crisis to an inapparent, subclinical infection. Dogs typically present with the acute form of babesiosis, which is characterized by general findings such as pyrexia, weakness, mucous membrane pallor, depression, hemorrhagic anemia. This study was conducted to investigate the prevalence of babesia spp. infection in dogs of Seogwipo-si. A survey of canine babesia spp. infections among 173 dogs in Seogwipo-si was performed from July 2008 to August 2008. Blood samples were collected from dogs raised outdoors through cephalic or jugular vein and Babesia spp. was diagnosed by examination of blood smear stained with Giemsa stain. Of 173 dogs, 9 dogs (5.2%) were infected with the babesia spp. This result was a little lower than the prevalence of Babesia spp. in dogs of other areas.

• 대한수의학회지
• /
• 제36권2호
• /
• pp.483-494
• /
• 1996

The present study was undertaken to identify the species of nematodes and determine infection state of small intestinal nematodes from dogs in Taegu area. One hundred and eleven healthy dogs which were 8 months old or more were examined by means of autopsy from September to November, 1993. All of the worms in small intestine were collected and preserved in 10% formalin solution. The worms were cleared in the lactophenol solution and examined by stereomicroscope and lightmicroscope. The result obtained were summarized as follows : Fifty three dogs(47.7%) out of the 111 experimental dogs were infected with small intestinal nematodes. Hookworm infection was recognized in 30(27.7%) dogs. All of the hookworms were identified morphologically as Ancylostoma caninum which had 3 pairs of ventral teeth, a pair of triangular dorsal teeth and a pair of centrolateral teeth. No Uncinaria stenocephala infection was detectable. Roundworm infection was recognized in 37(33.3%) dogs. Twenty one(18.9%) dogs were infected with Toxascaris leonina which had characteristic dorsal lips, paired spicules and a simple tail without process. The individual worm burden of the infected dogs ranged from one to 361 with mean of 25.5%. Among them 0~358(mean $17.8{\pm}30.66$) were Ancylostoma caninum, 0~18(mean $1.6{\pm}3.44$) were Toxocara canis and 0~60(mean $6.0{\pm}12.05$) were Toxascaris leonina. Single infection with Ancylostoma caninum, Toxocara canis and Toxascaris leonina were observed in 16(14.4%) dogs, in 9(8.1%) dogs, and in 11(9.9%) dogs respectively. Double infection with Ancylostoma caninum plus Toxascaris leonina and Toxocara canis plus Toxascaris leonina occurred in 5(0.5%) and in 3(2.7%) dogs respectively. Triple infection with Ancylostoma caninum plus Toxocara canis plus Toxascaris leonina occurred in 7(6.3%) dogs.

• 대한수의학회지
• /
• 제6권1호
• /
• pp.42-44
• /
• 1966

Survey of the infection rate of Dirofilaria immitis in Korean dogs was made in Chunju area by means of Kume's Aectone-Concentrating method. During the period of 60 days(July August) 1cc of the blood was collected from Vena mediana antebrachii of each of 205 dogs over the age of one year regardless of its sex.(In this case 2cc syringe was used.) Time for collecting the blood was from 2 p.m. to 6 p.m. The collected blood was checked, using Kume's acetone-concentrating method.: The results were summarized as followings. Microfilaria was detected in 47 dogs(23%) out of 205. Based on the dog's age, microfilaria possitive rate is 15.5% (12 dogs out of 77) at one age; 24%(14 dogs out of 59) at the age of two; 28%(12 dogs out of 43) at the age of three; 5%(5 dogs out of 15) at the age of four.

• 대한수의학회지
• /
• 제40권4호
• /
• pp.729-739
• /
• 2000

Echocardiography, vital signs, microfilaremia, and blood chemistry of 12 Jindo dogs naturally infected with canine heartworms (Dirofilaria immitis) were analysed and compared with those of 5 uninfected control Jindo dogs. Nine of the twelve infected dogs contained microfiaria in the peripheral blood, whereas the presence of adult heartworms in the pulmonary arteries and/or in the heart was detected from four dogs by echocardiography. Among the four echocardiography-positive dogs, two dogs also displayed evidence of heartworms in the right ventricle by echocardiography. Upon necropsy, a total of 547 adult worms was collected from the 12 infected dogs (av = 45.6, range = 9-166). Dogs with positive echocardiograpic images of heartworms contained 48, 74, 104 and 166 adult worms in the heart, pulmonary arteries and/or in the caudal vena cava (av. 98.0), whereas 9 to 39 worms (av. 19.4) were collected from those organs of dogs with negative echocardiography. Most heartworms were found in the right ventricle (438, 80%) at necropsy, whereas relatively fewer worms were found in the pulmonary arteries (96, 17.6%), and in the caudal vena cava (13, 2.4%). The necropsy findings on the location of adult worms significantly differed from the results of echocardiographic analysis in which the right ventricle of most dogs did not show the presence of heartworms. These results indicated that the adult heartworms had been located in the terminal branches of the pulmonary arteries when the host was alive, but the worms moved toward the right ventricle shortly after the heart of the infected dogs stopped beating. Microfilaremia in the peripheral blood was the highest in the blood samples collected at 10 pm. However, the correlation between the number of microfilaria and of adult worms was not observed. Clinical and vital signs of infected dogs did not show any significant difference before and after a 30 minute-exercise at 5 km/hr compared to those of uninfected control dogs.

• 한국동물위생학회지
• /
• 제41권3호
• /
• pp.179-183
• /
• 2018

A survey on the seroprevalence of Dirofilaria immitis infection among 2,197 Jindo dogs (371 males, 1,826 females) was conducted from 2011 to 2015 using an antigen test (SNAP 4Dx plus, IDEXX, USA). The overall seroprevalence of D. immitis infection in Jindo dogs was 21.8% (479/2,197), and an increase was observed in the seroprevalence of infection from 19.4% in 2011 to 25.8% in 2015. The infection rates were higher among male dogs (32.1%, 119/371) than female dogs (19.7%, 360/1,826)(P<0.01). The infection rates of D. immitis in Jindo dogs at the age of under 1 years-old, 1 to 2 years-old, 2 to 3 years-old and over 3 years old were 10.7% (76/710), 20.0% (190/950), 36.4% (156/428) and 52.3% (57/109), respectively. The older dogs had higher infection rates than the younger dogs (P<0.01). This study indicates that the prevalence rate of D. immitis in Jindo dogs is higher than previously reported in studies which utilized an antigen test.

• 한국동물위생학회지
• /
• 제20권1호
• /
• pp.47-53
• /
• 1997

We have investigated the prevalence of canine heartworm (Dirofilaria immitis) infection among 100 mixed-breed dogs raised in Chonnam Province (Koheung, Posung, Changheung, and Hwasoon) and 100 dogs randomly selected from visiting dogs to the College of Veterinary Medicine, Chonnam National University for routine physical examination. Blood samples taken from dogs were examined for the presence of Dirofilaria immitis microfilaria by the modified Knott's test, and an antigen test which was based on the sandwich ELISA(DiroCHEK(equation omitted), Synbiotics, Inc., San Diego, California, USA) was used to detect the adult heartworm-specific antigen from serum samples. The results were then compared with those of the modified Knott's test. Five(2.5%) of the 200 examined dogs were microfilaria-positive, while 8 dogs(4%) were anti-gen-positive, which suggested that the antigen test was more sensitive than the microfilarial test in detecting heartworm infection. All dogs that were microfilaria-positive were also antigen-positive. The place of origin of the heartworm-positive dogs were of Naju (4/26, 15.4%), Koheung(3/32, 9.4%), and Hwasoon (1/19, 5.3%), while none of dogs raised in Kwangju, Posung, and Changheung areas were infected with the parasite. Although not significant, more infected dogs were observed in older ages, while the difference in infection rate between male (4/98, 4.1%) and female (4/102, 3.9%) was not recognized. Our results indicated that a relatively low infection rate was observed in dogs raised in Kwangju and Chonnam area compared to the infection rate reported previously in other areas of South Korea.