• Title/Summary/Keyword: Laboratory Animals

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Body Weight Changes of Laboratory Animals during Transportation

  • Lee, Sung-Hak;Nam, Hyun-Sik;Kim, Jin-Sung;Cho, Hye-Jung;Jang, Yu-Mi;Lee, Eun-Jung;Choi, Eun-Sung;Jin, Dong-Il;Moon, Hong-Sik
    • Asian-Australasian Journal of Animal Sciences
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    • v.25 no.2
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    • pp.286-290
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    • 2012
  • The majority of laboratory animals were transported from commercial breeders to a research facility by ground transportation. During the transportation, many biological functions and systems can be affected by stress. In this experiment, the change of body weight during the transportation was measured and the recovery periods from the transportation stress established based on the body weight changes. Total 676 laboratory animals which were aged between 3 to 9 wk old were studied. The transportation time taken from container packing to unpacking the container was approximately 24 h. The temperature of animal container was constantly maintained by air-conditioning and heating equipment. Rats were found to be more sensitive than mice. The body weight of rats was significantly decreased 3.71% (p<0.05) compared to the body weight of mice which decreased 0.9% There was no significant difference between the strains in the same species. When the changes of body weights were compared between delivery days, C57BL/6 mice showed the most variable changes compared to other species and strains. Consequently, C57BL/6 was more sensitive to stress than the other strains and the transportation process needs to be standardized to reduce between day variability. To establish the recovery periods from transportation stress, the body weight changes were measured during the acclimation period. Although the body weight of animals decreased during transportation, animals recovered their weight loss after the next day.

Identification and Molecular Analysis of Ixodid Ticks (Acari: Ixodidae) Infesting Domestic Animals and Tick-Borne Pathogens at the Tarim Basin of Southern Xinjiang, China

  • Zhao, Li;Lv, Jizhou;Li, Fei;Li, Kairui;He, Bo;Zhang, Luyao;Han, Xueqing;Wang, Huiyu;Johnson, Nicholas;Lin, Xiangmei;Wu, Shaoqiang;Liu, Yonghong
    • Parasites, Hosts and Diseases
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    • v.58 no.1
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    • pp.37-46
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    • 2020
  • Livestock husbandry is vital to economy of the Tarim Basin, Xinjiang Autonomous Region, China. However, there have been few surveys of the distribution of ixodid ticks (Acari: Ixodidae) and tick-borne pathogens affecting domestic animals at these locations. In this study, 3,916 adult ixodid ticks infesting domestic animals were collected from 23 sampling sites during 2012-2016. Ticks were identified to species based on morphology, and the identification was confirmed based on mitochondrial 16S and 12S rRNA sequences. Ten tick species belonging to 4 genera were identified, including Rhipicephalus turanicus, Hyalomma anatolicum, Rh. bursa, H. asiaticum asiaticum, and Rh. sanguineus. DNA sequences of Rickettsia spp. (spotted fever group) and Anaplasma spp. were detected in these ticks. Phylogenetic analyses revealed possible existence of undescribed Babesia spp. and Borrelia spp. This study illustrates potential threat to domestic animals and humans from tick-borne pathogens.

Serine Proteases of Parasitic Helminths

  • Yang, Yong;Wen, Yun jun;Cai, Ya Nan;Vallee, Isabelle;Boireau, Pascal;Liu, Ming Yuan;Cheng, Shi Peng
    • Parasites, Hosts and Diseases
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    • v.53 no.1
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    • pp.1-11
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    • 2015
  • Serine proteases form one of the most important families of enzymes and perform significant functions in a broad range of biological processes, such as intra- and extracellular protein metabolism, digestion, blood coagulation, regulation of development, and fertilization. A number of serine proteases have been identified in parasitic helminths that have putative roles in parasite development and nutrition, host tissues and cell invasion, anticoagulation, and immune evasion. In this review, we described the serine proteases that have been identified in parasitic helminths, including nematodes (Trichinella spiralis, T. pseudospiralis, Trichuris muris, Anisakis simplex, Ascaris suum, Onchocerca volvulus, O. lienalis, Brugia malayi, Ancylostoma caninum, and Steinernema carpocapsae), cestodes (Spirometra mansoni, Echinococcus granulosus, and Schistocephalus solidus), and trematodes (Fasciola hepatica, F. gigantica, and Schistosoma mansoni). Moreover, the possible biological functions of these serine proteases in the endogenous biological phenomena of these parasites and in the host-parasite interaction were also discussed.

Nucleotide Sequencing and PCR-RFLP of Insulin-like Growth Factor Binding Protein-3 Gene in Riverine Buffalo (Bubalus bubalis)

  • Padma, B.;Kumar, Pushpendra;Choudhary, V.;Dhara, S.K.;Mishra, A.;Bhattacharya, T.K.;Bhushan, B.;Sharma, Arjava
    • Asian-Australasian Journal of Animal Sciences
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    • v.17 no.7
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    • pp.910-913
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    • 2004
  • Insulin-like growth factor binding protein-3 (IGFBP-3) gene is a structural gene associated with the growth and development of the animals. The present investigation was carried out to unravel nucleotide sequence and polymerase chain reactionrestriction fragment polymorphism (PCR-RFLP) of IGFBP-3 gene in buffalo. Genomic DNA was isolated from a total of 157 animals belonging to Murrah, Surti, Jaffarabadi and Nagpuri breeds of Indian riverine buffalo. A 655 bp of IGFBP-3 gene was amplified in all the breeds and amplicons were digested with Hae III, Taq I and Msp I restriction enzymes. On digestion with Hae III yielded single restriction pattern of 8 fragments of sizes 201, 165, 154, 56, 36, 19, 16 and 8 bp in all the animals studied. Similarly Taq I and Msp I also revealed single restriction pattern yielding fragments of sizes 240 and 415 bp and 145 and 510 bp, respectively. This shows nonpolymorphic nature of restriction sites in buffalo. Nucleotide sequencing of 587 bp of IGFBP-3 gene in Murrah buffalo was done and submitted to the GenBank (Accession No. AY304829). Nucleotide sequencing revealed an addition of 4 bases in the intronic region as compared to cattle.

Epidemiological Investigation of Tick Species from Near Domestic Animal Farms and Cattle, Goat, and Wild Boar in Korea

  • Chae, Jeong-Byoung;Cho, Young-Sun;Cho, Yoon-Kyoung;Kang, Jun-Gu;Shin, Nam-Shik;Chae, Joon-Seok
    • Parasites, Hosts and Diseases
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    • v.57 no.3
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    • pp.319-324
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    • 2019
  • This study aimed to investigate the tick species and give background for tick-borne investigations in Korea. Ticks were collected from the area within 2 km radius of the 4 domestic animal farms, where they were located in mountainous areas and raising animals on pasture, and from animal bodies in 2014 and 2015. In total, 7,973 nymphal and adult ticks were collected from the farms - 7,758 Haemaphysalis longicornis, 198 Haemaphysalis flava, and 17 Ixodes nipponensis, and 1,763 were collected from animals - 729 H. longicornis from cattle; 569 H. longicornis from goats; and 297 H. longicornis, 118 H. flava, 1 I. nipponensis, and 49 Amblyomma testudinarium from wild boars. As more species of ticks were collected from wild boars than domesticated animals and their habitats, various animal hosts should be considered while investigating tick species.

Effects of Addition of Electrolyte and Ascorbic Acid in Feed during Heat Stress in Buffaloes

  • Kumar, B.V. Sunil;Singh, G.;Meur, S.K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.23 no.7
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    • pp.880-888
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    • 2010
  • The ameliorative effect of salts and ascorbic acid polyphosphate supplementation on heat stress was studied in buffaloes. Adult buffaloes of either sex were randomly divided into 2 groups of 4 animals each. Group I served as control and Group II was supplemented with sodium bicarbonate, potassium carbonate and ascorbic acid polyphosphate. All the animals were exposed to two conditions of temperature and humidity: hot-dry and hot-humid in a psychrometric chamber for 4 h daily for 10 days. Blood was collected on day 1, 5 and 10 of treatment. The activities of catalase and superoxide dismutase (SOD), concentrations of serum glutathione (GSH), cortisol, sodium, potassium, and chloride and lipid peroxidation were estimated in serum. Lymphocyte proliferation was assessed in blood. The activities of catalase and SOD, serum concentration of GSH, sodium, potassium and chloride decreased while lipid peroxidation and serum cortisol increased in both groups when subjected to heat stress. Dietary supplementation resulted in further decreasing of the enzyme activities but increasing of the serum concentrations of GSH, sodium, potassium and chloride. Lipid peroxidation and serum cortisol increased in the supplemented group in both types of stress. Dietary supplementation caused an increase in lymphoproliferative response to con A. Thus, supplementation of ascorbate in addition to electrolytes relieves the animals of oxidative stress and boosts cell mediated immunity.

Genomic Relationship of Salmonella enterica Serovar Typhimurium DT104 Isolates from Korea and the United States

  • Kim, Shukho;Chun, Sung-Guen;Lim, Ok-Young;Park, Mi-Sun;Kang, Yeon-Ho;Park, Yong-Ho;Lee, Bok-Kwon
    • Journal of Microbiology
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    • v.42 no.1
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    • pp.14-19
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    • 2004
  • Salmonella enterica serovar Typhimurium DT104 (Salmonella Typhimurium DT104 or DT104) has been emerging as a common pathogen for human in Korea since 1997. In order to compare the genomic relationship and to search for the dominant strains in Korea, we conducted pulsed-field gel electrophoresis (PFGE) and IS200 fingerprinting of 25 epidemiological unrelated isolates from human and animals from Korea and cattle from America. Two Salmonella Typhimurium DT104 isolates from human in Korea and all 8 isolates from American cattle had indistinguishable patterns from the PFGE and IS200 fingerprinting but multidrug-resistant Salmonella Typhimurium isolates, including DT104, from Korean animals had diverse genetic patterns. The data suggest that a dominant DT104 strain might have circulated between Korean and American cattle and that it had a high level of clonality.

Is Hiding Foot and Mouth Disease Sensitive Behavior for Farmers? A Survey Study in Sri Lanka

  • Gunarathne, Anoma;Kubota, Satoko;Kumarawadu, Pradeep;Karunagoda, Kamal;Kono, Hiroichi
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.2
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    • pp.280-287
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    • 2016
  • Foot and mouth disease (FMD) has a long history in Sri Lanka and was found to be endemic in various parts of the country and constitutes a constant threat to farmers. In Sri Lanka, currently there is no regular, nationwide vaccination programme devised to control FMD. Therefore, improving farmers' knowledge regarding distinguishing FMD from other diseases and ensuring prompt reporting of any suspicion of FMD as well as restricting movement of animals are critical activities for an effective FMD response effort. Therefore, the main purpose of this study was to clarify the relationship between farmers' knowledge levels and their behaviors to establish a strategy to control FMD. In our study, item count technique was applied to estimate the number of farmers that under-report and sell FMD-infected animals, although to do so is prohibited by law. The following findings were observed: about 63% of farmers have very poor knowledge of routes of FMD transmission; 'under-reporting' was found to be a sensitive behavior and nearly 23% of the farmers were reluctant to report FMD-infected animals; and 'selling FMD-infected animals' is a sensitive behavior among high-level knowledge group while it is a non-sensitive behavior among the low-level knowledge group. If farmers would understand the importance of prompt reporting, they may report any suspected cases of FMD to veterinary officials. However, even if farmers report honestly, they do not want to cull FMD-infected animals. Thus, education programs should be conducted not only on FMD introduction and transmission, but also its impact. Furthermore, consumers may criticize the farmers for culling their infected animals. Hence, not only farmers, but also consumers need to be educated on the economic impact of FMD and the importance of controlling an outbreak. If farmers have a high knowledge of FMD transmission, they consider selling FMD-infected animals as a sensitive behavior. Therefore, severe punishment should be levied for selling FMD-infected animals.

COMPARISON TEST BETWEEN THE MODIFIED LIVING AND THE FORMALIN VACCINE OF BLACK-LEG DISEASE (Black leg Living vaccine 과 Formalin vaccine 과의 비교(比較) 시험(試驗) -주(主)로 면역력(免疫力)과 면역지적기간(免疫持績期間)에 대(對)하여-)

  • Kim, Dong Sung;Cha, Youn Ho;Pack, Jung Moon
    • Korean Journal of Veterinary Research
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    • v.4 no.1
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    • pp.23-25
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    • 1964
  • A comparative experiment on the duration of immunity and antigenicity of the Black-leg vaccine was conducted and following results were obtained. Animals vaccinated with formalin and modified living vaccine were equally survived when they were challenged 12 months after the vaccination. It was further found that the rate of survival was 50 % on both groups when the animals were challenged 16 months after the vaccination, and no distinctive difference was observed between the two groups by means of protection power.

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A clinical case of bovine anemia due to Theileria orientalis group in a non-grazed dairy cow in the upper part of South Korea

  • Espiritu, Hector M.;Lee, Hee-Woon;Lee, Sang-Suk;Cho, Yong-Il
    • Korean Journal of Veterinary Research
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    • v.61 no.4
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    • pp.33.1-33.5
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    • 2021
  • This study reports the detection and genotyping of the first clinical case of bovine anemia due to Theileria orientalis group (BATOG) in non-grazed dairy cow in upper South Korea. Blood and serum tests revealed anemia and hyperbilirubinemia from animal showing clinical symptoms, and later confirmed as piroplasmosis-positive. Follow-up surveillance on the herd revealed 2 asymptomatic cows with anemia. The three animals were confirmed theileriosis-positive and genotyping revealed the clinical and one of the asymptomatic cases have Chitose, while the other has Ikeda genotype. Clinical BATOG cases were rarely reported worldwide, and asymptomatic animals left untreated could serve as parasite reservoir.