• Title/Summary/Keyword: Wild animal

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Genetic Diversity of Wild Quail in China Ascertained with Microsatellite DNA Markers

  • Chang, G.B.;Chang, H.;Liu, X.P.;Zhao, W.M.;Ji, D.J.;Mao, Y.J.;Song, G.M.;Shi, X.K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제20권12호
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    • pp.1783-1790
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    • 2007
  • The genetic diversity of domestic quail and two wild quail species, Japanese (Coturnix coturnix)and Common quail (Coturnix japonica), found in China was studied using microsatellite DNA markers. According to a comparison of the corresponding genetic indices in the three quail populations, such as Polymorphism Information Content (PIC), Mean Heterozygosity ($\bar{H}$) and Fixation Index, wild Common quail possessed rich genetic diversity with 4.67 alleles per site. Its values for PIC and $\bar{H}$ were the highest, 0.5732 and 0.6621, respectively. Domestic quail had the lowest values, 0.5467 and 0.5933, respectively. Wild Japanese quail had little difference in genetic diversity from domestic quail. In addition, from analyses of the fuzzy cluster based on standard genetic distance, the similarity relationship matrix coefficient between wild Japanese quail and domestic quail was 0.937, and that between wild Common quail and domestic quail was 0.783. All of these results showed that the wild Japanese quail were closer to the domestic quail for phylogenetic relationship than wild Common quail. These results at the molecular level provide useful data about quail's genetic background and further supported the hypothesis that the domestic quail originated from the wild Japanese quail.

Cross Fertility between the Wild Japanese Quail in the Weishan Lake Area and Domestic Quail

  • Xu, W.;Chang, H.;Wang, H.Y.;Chang, G.B.;Du, L.;Lu, S.X.;Yi, H.Q.;Xu, Q.;Xu, M.;Wang, Q.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제16권10호
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    • pp.1421-1423
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    • 2003
  • Cross fertility between wild Japanese quail and domestic quail was explored in an experiment conducted on 18(3♂, 15♀)wild Japanese quails in Weishan Lake area, 18(3♂, 15♀)medium-sized domestic quails and 18(3♂, 15♀)pint-sized domestic quails, which were divided into nine groups. This study demonstrated that wild quail could succeed in crossing with domestic quail,producing fertilized eggs and hatching first filial generation. The findings indicated that there were no reproduction isolation between the wild Japanese quail and domestic quail, and that the best cross combination was between wild male quail and medium-sized domestic female quail, in which the fertility rate and hatchability of fertilized eggs amounted to 42.86% and 29.63% respectively. Based on the results, a new way could be adopted to protect, exploit and utilize genetic resources of wild quail.

Preliminary Study on the Level of Evolutionary Differentiation between Domestic Quails and Wild Japanese Quails

  • Wang, H.Y.;Chang, H.;Xu, W.;Chang, G.B.;Lu, S.X.;Du, L.;Sun, W.;Xu, M.;Wang, Q.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제16권2호
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    • pp.266-268
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    • 2003
  • This paper makes an analysis of the ecological behaviours of 3 categories of quails, namely wild Japanese quails from the Weishan Lake Area, medium-sized domestic quails and pint-sized domestic quails. The study indicates as follows: (1) There is difference in morphological and biological habits between domestic quails and wild Japanese ones. (2) The cross-breeding between the wild and domestic quails is a cross from exclusion to affinity. (3) The behaviours of quails such as pursuit,paw and mating are selective. (4) The wild Japanese quails and domestic ones can succeed in mating and in reproducing fertilized eggs but with a low rate. (5) Evolutionary differentiation has been formed in varying degrees between the domestic quails and their wild ancestors in morphological and ecological characteristics.

한국 야생 랫드의 형태 유전학적 특성 (Morphogenetical characteristics of Korean wild rat (Rattus norvegicus))

  • 성제경;윤영민;박지영;오승현;도선길;진희경;현병화;서준교;오양석
    • 대한수의학회지
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    • 제39권5호
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    • pp.896-907
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    • 1999
  • The morphometrical characteristics such as external measurements and mandible size assessment in mice and rats have to be highly heritable and sufficiently variable between strains in order to calculate a strain specific profiles. The coat color of Korean wild rats were observed and morphometric analysis of external measurements were carried out on Korean wild rats compared to laboratory strains in order to clarify the genetic characteristics of Korean wild rats and to establish background data as a domestication of Korean wild rats for new laboratory strain. Korean wild rats were captured from Chunchon and Hoengsong. 4 inbred and 1 outbred strains of rats were used in this study for the comparison of genetic characteristic of Korean wild rats. Total body length, head length, tail length, hind foot length and ear length were measured and then statistical analysis were carried out by discrimiant analysis. The coat color of Korean wild rat showed golden white in ventral portion and dark agouti in dorsal portion. Korean wild rats could be distinguished from the other laboratory strains distinctly by morphogenetical analysis. There was significant variations among Korean wild rat compared to those of the other laboratory strains of rat. This study may provide that Korean wild rats have a unique genetic characterization compared to those of other inbred strains of rats based on morphogenetical characteristics by external measurements.

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Prevalence of antibodies against hepatitis E virus in wild boars (Sus scrofa) in Korea

  • Park, Yu-Ri;Park, Ji-Young;Kang, Dae-Young;Han, Do-Hyun;Yoon, Hachung;Jeong, Wooseog;An, Dong-Jun;Yeo, Sang-Geon;Park, Choi-Kyu
    • 한국동물위생학회지
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    • 제39권4호
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    • pp.267-270
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    • 2016
  • We determined the nationwide seroprevalence of hepatitis E virus (HEV) infection in the wild boar population in Korea. Enzyme-linked immunosorbent assay (ELISA) results showed that 42% of the 528 wild boars that were hunted between 2013 and 2014 were anti-HEV antibody positive. Furthermore, all Korean provinces showed an HEV seroprevalence between 9.8% and 51.1%, suggesting that wild boar HEV infection occurs throughout the country. Importantly, infected wild boar could act as a potential reservoir for HEV and could aid transmission to other animals and humans.

Effect of Dietary Supplementation of Wild Grape on the Antioxidative Potential of the Breast and Leg Meat of Broilers

  • Yong, Hae In;Kim, Hyun Jo;Jung, Samooel;Jayasena, Dinesh D.;Bae, Young Sik;Lee, Soo Kee;Jo, Cheorun
    • 한국축산식품학회지
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    • 제33권1호
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    • pp.83-88
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    • 2013
  • This study investigated the effect of wild grape (Vitis coignetiae) dietary supplementation on the antioxidative potential and quality of the breast and leg meat of broilers. A total of 36 one-day-old male Cobb broiler chicks were obtained from a commercial hatchery, and randomly assigned to 9 pens with 4 birds per pen. Then, broilers were fed 3 different dietary supplementations, including 0%, 0.25%, or 0.5% wild grape, for 2 wks at the finishing period. After slaughtering, the total phenolic content, ${\alpha}$,${\alpha}$'-diphenyl-${\beta}$-picryl-hydrazyl (DPPH) radical scavenging activity, 2-thiobarbituric acid reactive substances (TBARS), and total cholesterol content of broiler breast and leg meat were measured. Higher total phenolic content was recorded in the leg meat of broilers fed the wild grape when compared with the control, while breast meat did not show any difference. Dietary supplementation of 0.25% and 0.5% wild grape significantly increased DPPH radical scavenging activity of both breast and leg meat. TBARS values of both breast and leg meat were decreased by supplementation of 0.5% wild grape during storage when compared to the control, except for the leg meat at day 7. However, there was no significant difference found in total cholesterol content in both breast and leg meat. The results indicate that the antioxidative potential of broiler meat is improved by supplementing the diet with wild grape.

Silage 재료로서 혼합 야생화의 이용에 관한 연구 (A Study on Utilization of Mixed Wild Flowers as a Silage Materials)

  • 오현민;이인덕;신용준;김성복;최현수;이봉덕;이수기
    • 농업과학연구
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    • 제37권3호
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    • pp.383-386
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    • 2010
  • This experiment was conducted to investigate the quality of wild flowers and mixed wild flower silages. Silage materials employed ochardgrass and mixed wild flower (orchardgrass, white clover, Achillea sibirica Ledeb., Coreopsistinctoria Nutt., Rudbeckiabicolor Nutt., Centaureacyanus L.). Six kilograms of silage materials cut from each treatment were divided into 3 containers, packed by vacuum, and fermented for 40 days. The orchardgrass silage showed significantly higher contents of crude protein than that of mixed wild flower silage. But the neutral detergent fiber and acid detergent fiber contents of orchardgrass silage were significantly lower than those of mixed wild flower silage. pH and butyric acid of orchardgrass silage were significantly lower than those of mixed wild flower silage, and significantly higher in lactic acid contents. It appears that water soluble carbohydrates needs to be supplemented, being grounded on the results above, into wild flower materials both with high fiber materials and with low substances which need lactic acid fermentation.

Study on Phylogenetic Relationship Between Wild Japanese Quails in the Weishan Lake Area and Domestic Quails

  • Chang, G.B.;Chang, H.;Zhen, H.L.;Liu, X.P.;Sun, W.;Geng, R.Q.;Yu, Y.M.;Wang, S.C.;Geng, S.M.;Liu, X.L.;Qin, G.Q.;Shen, W.
    • Asian-Australasian Journal of Animal Sciences
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    • 제14권5호
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    • pp.603-607
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    • 2001
  • This paper is based on the 36 wild Japanese quails which migrated to and settled in the Weishan Lake area. The gene frequency of 10 loci encoding the enzymes in viscera and muscle was detected. After collecting the same data about 20 quail colonies in China and other countries, it clusters the 21 quail populations by fuzzy cluster analysis. The study indicates that the wild Japanese quail in the Weishan Lake area is closer to domestic quail for phylogenetic system than wild Japanese quails in Japanese Islands. The paper supports the thesis that the quail domestication area should be further studied.