• Title/Summary/Keyword: domestic rabbit

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A rare case of bovine tuberculosis caused by Mycobacterium bovis in a domestic rabbit

  • Roh, Su Gwon;Jang, Yun-Ho;Kim, Jongho;Lee, Kyunghyun;So, Byungjae;Choi, Eun-Jin
    • Korean Journal of Veterinary Research
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    • v.60 no.2
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    • pp.85-88
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    • 2020
  • A 12-month-old domestic rabbit died suddenly without specific clinical signs. Gross examination revealed irregular yellowish hepatic nodules with pus in the submandibular muscles, lungs, uterus, and small intestines. Histopathological examination of the liver showed granulomatous inflammation with acid-fast-positive bacteria. Mycobacterium bovis SB1040 was identified by polymerase chain reaction and spoligotyping, and Pasteurella multocida was isolated from the multiple lesions. This report demonstrates the pathological features of rare bovine tuberculosis (bTB) in a domestic rabbit, the first case in the Republic of Korea. To ensure public safety, we recommend routine monitoring of rabbits to control the incidence of bTB.

Seroprevalence of Encephalitozoon cuniculi and Toxoplasma gondii in domestic rabbits (Oryctolagus cuniculus) in China

  • Meng, Qing-Feng;Wang, Wei-Lin;Ni, Xiao-Ting;Li, Hai-Bin;Yao, Gui-Zhe;Sun, Xiao-Lin;Wang, Wei-Li;Cong, Wei
    • Parasites, Hosts and Diseases
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    • v.53 no.6
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    • pp.759-763
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    • 2015
  • The breeding of domestic rabbits (Oryctolagus cuniculus) for human consumption has a long tradition in China. Infections that can affect the production of meat or even be transmitted from animals to humans are important to monitor, especially for public health reasons as well as for their impact on animal health. Thus, a total of 1,132 domestic rabbit sera from 4 regions in China were collected for serological screening for Encephalitozoon cuniculi and for Toxoplasma gondii by ELISA and modified agglutination test (MAT), respectively. Antibodies to E. cuniculi were detected in 248/1,132 (21.9%) sera tested while antibodies against T. gondii revealed a seroprevalence of 51/1,132 (4.5%). We believe that the present results are of epidemiological implications and public health importance due to the acknowledged susceptibility of humans to E. cuniculi and T. gondii infections. Therefore, routine screening tests of domestic rabbits are proposed considering the zoonotic potential of these parasites.

Comparative Study of Histological Structure in the Tongue Root of Domestic Animals (각종 가축 설근부의 조직학적 구조에 대한 비교 연구)

  • Lee, Nam-soo;Lee, Jae-hyun
    • Korean Journal of Veterinary Research
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    • v.26 no.2
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    • pp.211-219
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    • 1986
  • In order to know the comparative histological structure of the tongue of some domestic and laboratory animals, the root of the tongue has been investigated by light microscopy. The filiform papillae were mainly distributed in the root of the tongue of most animals and many foliate papillae were also found in the dog and rabbit. On the other hand, only filiform papillae were found in the fowl. The very well-developed mucosa was found in the cattle and in the dog, fowl, rat and mouse was fair. The lamina propria was well developed in the cattle, dog and pig, The muscle layer was well developed in the cattle. The adipose tissue which distributed between the muscle fibers was mainly found in the dog. The lingual glands were well developed in the pig, fowl and rabbit. The properties of these glands were shown strung acid mucopolysaccharide in the dog and pig, weak acid mucopolysaccharide in the fowl, rabbit and rat and neutral or acid mucopolysaccharide in the mouse. The species differences on the histological structure of the tongue were also ascertained by light microscopical observations.

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Rabbit Hemorrhagic Disease Virus Variant Recombinant VP60 Protein Induces Protective Immunogenicity

  • Yang, Dong-Kun;Kim, Ha-Hyun;Nah, Jin-Ju;Song, Jae-Young
    • Journal of Microbiology and Biotechnology
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    • v.25 no.11
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    • pp.1960-1965
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    • 2015
  • Rabbit hemorrhagic disease virus (RHDV) is highly contagious and often causes fatal disease that affects both wild and domestic rabbits of the species Oryctolagus cuniculus. A highly pathogenic RHDV variant (RHDVa) has been circulation in the Korean rabbit population since 2007 and has a devastating effect on the rabbit industry in Korea. A highly pathogenic RHDVa was isolated from naturally infected rabbits, and the gene encoding the VP60 protein was cloned into a baculovirus transfer vector and expressed in insect cells. The hemagglutination titer of the Sf-9 cell lysate infected with recombinant VP60 baculovirus was 131,072 units/50 μl and of the supernatant 4,096 units/50 μl. Guinea pigs immunized twice intramuscularly with a trial inactivated RHDVa vaccine containing recombinant VP60 contained 2,152 hemagglutination inhibition (HI) geometric mean titers. The 8-week-old white rabbits inoculated with one vaccine dose were challenged with a lethal RHDVa 21 days later and showed 100% survival rates. The recombinant VP60 protein expressed in a baculovirus system induced high HI titers in guinea pigs and rendered complete protection, which led to the development of a novel inactivated RHDVa vaccine.

Milk yield and kit development of four breeds of rabbit in Ibadan, Nigeria

  • Jimoh, Olatunji Abubakar;Ewuola, Emmanuel Olabisi
    • Journal of Animal Science and Technology
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    • v.59 no.12
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    • pp.25.1-25.7
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    • 2017
  • Background: Rabbit breeding with high performance imported ones would be of benefit for genetic diversity and improvement of performance in domestic rabbit breeds. The rearing of more productive rabbit breeds could be pathway to improve the productivity and reduce the production cost. Maternal nutritional status exert a great influence on reproductive functions of does, which may expand from conception, through gestation and parturition and development of kits to puberty. Methods: Four breeds of rabbit were evaluated for their parturition, weaning and pubertal differences among the rabbit population in Ibadan, Nigeria. The breed consist of Fauve De Bourgogne (FDB), Chinchilla (CHA), British Spot (BS) and New Zealand White (NZW) rabbits. A total of 60 bucks and 360 does consisting of 15 bucks and 90 does per breed were mated in 6 mating cycles, three each of natural mating and artificial insemination. All does were synchronized for estrus with 20 IU pregnant mare serum gonadotropin 48 h prior to mating. The does after parturition were assessed for milk yield (g) and kit survival rate (%) till weaning, weight changes of kits from birth to puberty. At puberty, the pubertal age (days) and weight (g) of the offspring were assessed. Result: Results obtained reveals that British Spot doe had highest milk yield among the breeds which significantly increased growth of kit and weight at weaning in British Spot rabbits. Survival rates of Chinchilla kits were significantly (p < 0.05) higher than Fauve de Bourgogne, British Spot and New Zealand White kits. Puberty attainment of the rabbits indicates that British spot does and Fauve de Bourgogne bucks are early maturing. Conclusion: Chinchilla shows high kit survivability and British spot has highest milk yield among the four breeds of rabbit.

Uterine Torsion Associated with Hydrometra and Pyometra in a Domestic Rabbit (애완 토끼에서 자궁수종, 자궁축농증, 자궁염전의 병발 증례)

  • Na, Sanggi;Choi, Jihye
    • Journal of Veterinary Clinics
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    • v.31 no.6
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    • pp.544-546
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    • 2014
  • A 1.5-year-old, female domestic rabbit was diagnosed with uterine torsion accompanying hydrometra of the right uterine horn and pyometra of the left horn. The exploratory laparotomy revealed the torsion of bilateral uterine horns in the region of the uterine cervix. No growth was detected in fluid collected from the right horn of the uterus; however, Gram-positive micrococcus and bacilli were cultured from the left horn. The pathophysiology of the simultaneous occurrence of these disorders was suspected considering that abdominal distension progressed over 4 months and the rabbit's condition deteriorated abruptly within 2 days, hydrometra was the initial disease and then infection to the left uterine horn and torsion developed later due to the large volume of fluid within the uterus. This report is the first case showing uterine torsion accompanying hydrometra and pyometra in each uterine horn.

Development of Duplex PCR Method for Simultaneous Detection of Rabbit (Oryctolagus cuniculus) and Cat (Felis catus) Meats (Duplex PCR을 이용한 토끼(Oryctolagus cuniculus)와 고양이(Felis catus) 육류의 동시 검출법 개발)

  • Hong, Yeun;Kim, Mi-Ju;Yang, Seung-Min;Yoo, In-Suk;Kim, Hae-Yeong
    • Journal of Applied Biological Chemistry
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    • v.58 no.4
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    • pp.383-387
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    • 2015
  • A duplex polymerase chain reaction (PCR) detection method was developed to authenticate the use of cat and rabbit in food and to prevent unlawful distribution of illegally butchered meat in both domestic and imported food market. Species-specific primers were designed targeting mitochondrial cytochrome b gene. The sizes of PCR products were 191 bp for cat and 101 bp for rabbit, which were relatively small for better application of the detection method on processed foods. Specificities of primers were verified using 21 animal species including cat and rabbit. Limit of detection was examined by serial dilution of the sample DNA and confirmed as 0.005 ng for rabbit and 0.0005 ng for cat using Bioanalyzer. The developed duplex PCR method showed specificity and sensitivity in the identification of two target species.

In vitro Fertilization and Culture of Rabbit Egg (가토난자의 체외수정과 체외배양)

  • 박흠대;이경광;정길생
    • Korean Journal of Animal Reproduction
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    • v.4 no.1
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    • pp.75-82
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    • 1980
  • This experiment was carried out to improve a simple and effective procedure of egg transfer which is considered to be the most useful technique for the improvementand proliferation of domestic animals. Several experiment procedures such as superovulation, surgical recovery of ovulated egg, in vitro capacitation of ejaculated spermatozoa, in vitro fertilization and culture of embryo were conducted. The results obtained in this experiment were summarized as follows: 1. In rabbits treated with PMS in combination with estradiol and HCG, 10 to 43 eggs were obtained in one rabbit and the average ovulation number of 20 rabbits was 21 eggs. 2. Six to 24 eggs (average 13 eggs) were recovered from the removed oviducts by the methods of flushing technique and the average recovery rate of 20 rabbits was 61.9 percent. 3. Most rabbit spermatozoa ejaculated by artificial vagina were capacitated in vitro by the culture of the spermatozoa with PBI medium at 37$^{\circ}C$ for 4 hours after removal of seminal plasma. 4. Normal fetilization following in vitro fetilization was observed in 88 (42.7%) of 206 eggs. 5. The number of eggs developed to 2-, 4-, and 8-cell stage following in vitro culture with PBI medium at 37$^{\circ}C$ was 26 (70.3%), 20 (54.1%) and 17 (45.9%) of 37 eggs used for in vitro culture.

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Improvement of the Design and Construction Technique of Orthotropic Steel Deck Bridges : Fatigue Strength of Three Dimensional Full-scaled Model (강바닥판교의 설계 및 시공성 향상방안 : 강바닥판교 3차원 실물 모형체의 피로강도)

  • Oh, Soon Taek
    • Journal of Korean Society of Steel Construction
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    • v.18 no.1
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    • pp.23-32
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    • 2006
  • This study was conducted to improve the design and construction technique of orthotropic steel-deck bridges. After conducting an F.E.M. analysis of the various rib types of the connection details, static and fatigue tests were conducted, using a three-dimensional, full-scaled, orthotropic, steel-deck-plate model with internal diaphrams, to check the fatigue strength depending on the types of details. The model structure was made of two types of longitudinal ribs: the domestic standard and the European rabbit types. The fatigue strength of the steel-deck system was found to have improved through the installation of an internal diaphram, as no cracks were found on the bottom round part of the scallop with a diaphram. There were no differences between the domestic and the European types of details in terms of strength may be partially influenced by the shape of the scallop and by the installation of an internal diaphram, but it can be improved more significantly according to the quality of the welding that will be done.