The Experts below are selected from a list of 75 Experts worldwide ranked by ideXlab platform
Zhiwei Peng - One of the best experts on this subject based on the ideXlab platform.
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Ascarid Infection in wild amur tigers panthera tigris altaica in china
BMC Veterinary Research, 2020Co-Authors: Zhiwei Peng, Zhijun Hou, Yao Ning, Dan Liu, Ying Sun, Li-xin Wang, Qian Zhai, Hongliang Chai, Guangshun JiangAbstract:Wild Amur tigers are a sparsely populated species, and the conservation of this species is of great concern worldwide, but as an important health risk factor, parasite Infection in them is not fully understanding. In this study, sixty-two faecal samples were collected to investigate the frequency and Infection intensity of Toxocara cati and Toxascaris leonina in wild Amur tigers. The T. cati and T. leonina eggs were preliminary identified by microscopy, and confirmed by molecular techniques. Infection intensity was determined by the modified McMaster technique. Phylogenetic trees demonstrated that T. cati of wild Amur tiger had a closer relationship with which of other wild felines than that of domestic cats. T. leonina of Amur tiger and other felines clustered into one clade, showing a closer relationship than canines. The average frequency of T. cati was 77.42% (48/62), and the frequency in 2016 (100%) were higher than those in 2013 (P = 0.051, < 0.1; 66.6%) and 2014 (P = 0.079, < 0.1; 72.2%). The Infection intensity of T. cati ranged from 316.6 n/g to 1084.1 n/g. For T. leonina, only three samples presented eggs when the saturated sodium chloride floating method was performed, indicating that the frequency is 4.83% (3/62). Unfortunately, the egg number in faecal smears is lower than the detective limitation, so the Infection intensity of T. leonina is missed. This study demonstrated that Ascarids are broadly prevalent, and T. cati is a dominant parasite species in the wild Amur tiger population.
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Ascarid Infection in wild Amur tigers ( Panthera tigris altaica ) in China
BMC veterinary research, 2020Co-Authors: Zhiwei Peng, Zhijun Hou, Yao Ning, Dan Liu, Ying Sun, Li-xin Wang, Qian Zhai, Hongliang Chai, Guangshun JiangAbstract:Wild Amur tigers are a sparsely populated species, and the conservation of this species is of great concern worldwide, but as an important health risk factor, parasite Infection in them is not fully understanding. In this study, sixty-two faecal samples were collected to investigate the frequency and Infection intensity of Toxocara cati and Toxascaris leonina in wild Amur tigers. The T. cati and T. leonina eggs were preliminary identified by microscopy, and confirmed by molecular techniques. Infection intensity was determined by the modified McMaster technique. Phylogenetic trees demonstrated that T. cati of wild Amur tiger had a closer relationship with which of other wild felines than that of domestic cats. T. leonina of Amur tiger and other felines clustered into one clade, showing a closer relationship than canines. The average frequency of T. cati was 77.42% (48/62), and the frequency in 2016 (100%) were higher than those in 2013 (P = 0.051,
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Ascarid infestation in captive Siberian tigers in China
Veterinary parasitology, 2016Co-Authors: Zhiwei Peng, Zhijun Hou, Shijie Liu, Mingwei XingAbstract:The Siberian tiger is endangered and is listed by the International Union for the Conservation of Nature; the captive environment is utilized to maintain Siberian tiger numbers. Little information regarding the prevalence of parasites in Siberian tigers is available. A total of 277 fecal samples of Siberian tigers were analyzed in this study. The microscopic analysis indicated the presence of Ascarid eggs of Toxascaris leonina and Toxocara cati. The Ascarid Infection rate was 67.5% in Siberian tigers. The internal transcribed spacer-1 (ITS-1) phylogenetic analysis indicated that T. leonina belonged to Toxascaris and that Toxo. cati belonged to Toxocara. The infestation rate and intensity of T. leonina were higher than those of Toxo. cati. One-way analysis of variance showed that the presence of T. leonina was significantly associated with age (P
Zhijun Hou - One of the best experts on this subject based on the ideXlab platform.
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Ascarid Infection in wild amur tigers panthera tigris altaica in china
BMC Veterinary Research, 2020Co-Authors: Zhiwei Peng, Zhijun Hou, Yao Ning, Dan Liu, Ying Sun, Li-xin Wang, Qian Zhai, Hongliang Chai, Guangshun JiangAbstract:Wild Amur tigers are a sparsely populated species, and the conservation of this species is of great concern worldwide, but as an important health risk factor, parasite Infection in them is not fully understanding. In this study, sixty-two faecal samples were collected to investigate the frequency and Infection intensity of Toxocara cati and Toxascaris leonina in wild Amur tigers. The T. cati and T. leonina eggs were preliminary identified by microscopy, and confirmed by molecular techniques. Infection intensity was determined by the modified McMaster technique. Phylogenetic trees demonstrated that T. cati of wild Amur tiger had a closer relationship with which of other wild felines than that of domestic cats. T. leonina of Amur tiger and other felines clustered into one clade, showing a closer relationship than canines. The average frequency of T. cati was 77.42% (48/62), and the frequency in 2016 (100%) were higher than those in 2013 (P = 0.051, < 0.1; 66.6%) and 2014 (P = 0.079, < 0.1; 72.2%). The Infection intensity of T. cati ranged from 316.6 n/g to 1084.1 n/g. For T. leonina, only three samples presented eggs when the saturated sodium chloride floating method was performed, indicating that the frequency is 4.83% (3/62). Unfortunately, the egg number in faecal smears is lower than the detective limitation, so the Infection intensity of T. leonina is missed. This study demonstrated that Ascarids are broadly prevalent, and T. cati is a dominant parasite species in the wild Amur tiger population.
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Ascarid Infection in wild Amur tigers ( Panthera tigris altaica ) in China
BMC veterinary research, 2020Co-Authors: Zhiwei Peng, Zhijun Hou, Yao Ning, Dan Liu, Ying Sun, Li-xin Wang, Qian Zhai, Hongliang Chai, Guangshun JiangAbstract:Wild Amur tigers are a sparsely populated species, and the conservation of this species is of great concern worldwide, but as an important health risk factor, parasite Infection in them is not fully understanding. In this study, sixty-two faecal samples were collected to investigate the frequency and Infection intensity of Toxocara cati and Toxascaris leonina in wild Amur tigers. The T. cati and T. leonina eggs were preliminary identified by microscopy, and confirmed by molecular techniques. Infection intensity was determined by the modified McMaster technique. Phylogenetic trees demonstrated that T. cati of wild Amur tiger had a closer relationship with which of other wild felines than that of domestic cats. T. leonina of Amur tiger and other felines clustered into one clade, showing a closer relationship than canines. The average frequency of T. cati was 77.42% (48/62), and the frequency in 2016 (100%) were higher than those in 2013 (P = 0.051,
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Ascarid infestation in captive Siberian tigers in China
Veterinary parasitology, 2016Co-Authors: Zhiwei Peng, Zhijun Hou, Shijie Liu, Mingwei XingAbstract:The Siberian tiger is endangered and is listed by the International Union for the Conservation of Nature; the captive environment is utilized to maintain Siberian tiger numbers. Little information regarding the prevalence of parasites in Siberian tigers is available. A total of 277 fecal samples of Siberian tigers were analyzed in this study. The microscopic analysis indicated the presence of Ascarid eggs of Toxascaris leonina and Toxocara cati. The Ascarid Infection rate was 67.5% in Siberian tigers. The internal transcribed spacer-1 (ITS-1) phylogenetic analysis indicated that T. leonina belonged to Toxascaris and that Toxo. cati belonged to Toxocara. The infestation rate and intensity of T. leonina were higher than those of Toxo. cati. One-way analysis of variance showed that the presence of T. leonina was significantly associated with age (P
Guangshun Jiang - One of the best experts on this subject based on the ideXlab platform.
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Ascarid Infection in wild Amur tigers ( Panthera tigris altaica ) in China
BMC veterinary research, 2020Co-Authors: Zhiwei Peng, Zhijun Hou, Yao Ning, Dan Liu, Ying Sun, Li-xin Wang, Qian Zhai, Hongliang Chai, Guangshun JiangAbstract:Wild Amur tigers are a sparsely populated species, and the conservation of this species is of great concern worldwide, but as an important health risk factor, parasite Infection in them is not fully understanding. In this study, sixty-two faecal samples were collected to investigate the frequency and Infection intensity of Toxocara cati and Toxascaris leonina in wild Amur tigers. The T. cati and T. leonina eggs were preliminary identified by microscopy, and confirmed by molecular techniques. Infection intensity was determined by the modified McMaster technique. Phylogenetic trees demonstrated that T. cati of wild Amur tiger had a closer relationship with which of other wild felines than that of domestic cats. T. leonina of Amur tiger and other felines clustered into one clade, showing a closer relationship than canines. The average frequency of T. cati was 77.42% (48/62), and the frequency in 2016 (100%) were higher than those in 2013 (P = 0.051,
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Ascarid Infection in wild amur tigers panthera tigris altaica in china
BMC Veterinary Research, 2020Co-Authors: Zhiwei Peng, Zhijun Hou, Yao Ning, Dan Liu, Ying Sun, Li-xin Wang, Qian Zhai, Hongliang Chai, Guangshun JiangAbstract:Wild Amur tigers are a sparsely populated species, and the conservation of this species is of great concern worldwide, but as an important health risk factor, parasite Infection in them is not fully understanding. In this study, sixty-two faecal samples were collected to investigate the frequency and Infection intensity of Toxocara cati and Toxascaris leonina in wild Amur tigers. The T. cati and T. leonina eggs were preliminary identified by microscopy, and confirmed by molecular techniques. Infection intensity was determined by the modified McMaster technique. Phylogenetic trees demonstrated that T. cati of wild Amur tiger had a closer relationship with which of other wild felines than that of domestic cats. T. leonina of Amur tiger and other felines clustered into one clade, showing a closer relationship than canines. The average frequency of T. cati was 77.42% (48/62), and the frequency in 2016 (100%) were higher than those in 2013 (P = 0.051, < 0.1; 66.6%) and 2014 (P = 0.079, < 0.1; 72.2%). The Infection intensity of T. cati ranged from 316.6 n/g to 1084.1 n/g. For T. leonina, only three samples presented eggs when the saturated sodium chloride floating method was performed, indicating that the frequency is 4.83% (3/62). Unfortunately, the egg number in faecal smears is lower than the detective limitation, so the Infection intensity of T. leonina is missed. This study demonstrated that Ascarids are broadly prevalent, and T. cati is a dominant parasite species in the wild Amur tiger population.
Mingwei Xing - One of the best experts on this subject based on the ideXlab platform.
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Ascarid infestation in captive Siberian tigers in China
Veterinary parasitology, 2016Co-Authors: Zhiwei Peng, Zhijun Hou, Shijie Liu, Mingwei XingAbstract:The Siberian tiger is endangered and is listed by the International Union for the Conservation of Nature; the captive environment is utilized to maintain Siberian tiger numbers. Little information regarding the prevalence of parasites in Siberian tigers is available. A total of 277 fecal samples of Siberian tigers were analyzed in this study. The microscopic analysis indicated the presence of Ascarid eggs of Toxascaris leonina and Toxocara cati. The Ascarid Infection rate was 67.5% in Siberian tigers. The internal transcribed spacer-1 (ITS-1) phylogenetic analysis indicated that T. leonina belonged to Toxascaris and that Toxo. cati belonged to Toxocara. The infestation rate and intensity of T. leonina were higher than those of Toxo. cati. One-way analysis of variance showed that the presence of T. leonina was significantly associated with age (P
Lydden Polley - One of the best experts on this subject based on the ideXlab platform.
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Ascaris suum prevalence and intensity: an abattoir survey of market hogs in Saskatchewan
Veterinary parasitology, 1997Co-Authors: Brent Wagner, Lydden PolleyAbstract:Two surveys examining the prevalence and intensity of Ascaris suum were conducted at a Saskatchewan abattoir. In the first, 2500 livers from market weight animals were examined and scored for lesions consistent with Ascarid migration. Forty-four percent displayed some degree of scarring with approximately 8% being severely damaged. In the second, both livers and intestinal contents from 500 market weight animals were examined. Seventeen percent were infected with intestinal A. suum (mean of 2.5 parasites per infected pig) and 50% had liver lesions typical of Ascarid larval migration. Fifty-three percent of the animals in the second survey had some evidence of Ascarid Infection (adult parasites, hepatic lesions or both). The results are compared with those from a similar survey conducted in the late 1970s at the same abattoir as well as with surveys conducted elsewhere in Canada and in the UK.
