Dairy Cattle

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Xing-quan Zhu - One of the best experts on this subject based on the ideXlab platform.

  • Seroprevalence and correlates of Toxoplasma gondii infection in Dairy Cattle in northwest China.
    Acta parasitologica, 2015
    Co-Authors: Qi-dong Tan, Dong-hui Zhou, Xiao-yu Yang, Ming-yang Yin, Si-yuan Qin, Jin-lei Wang, Xing-quan Zhu
    Abstract:

    Prevalence of antibodies to Toxoplasma gondii and risk factors with infection were assessed in Dairy Cattle from Gansu Province and Ningxia Hui Autonomous Region (NXHAR), northwest China. In total, 1657 serum samples were collected and assayed by the modified agglutination test. The overall seroprevalence was 4.83% at a 1:100 cut-off, with titers of 1:100 in 72, 1:200 in 4, 1:400 in 4. Among the risk factors examined, no statistically significant difference was observed between T. gondii seroprevalence and regions or age of Dairy Cattle in the logistic regression analysis (P>0.05) and left out of the final model. However, numbers of pregnancies of Dairy Cattle was considered as main risk factor associated with T. gondii infection. Dairy Cattle in nulliparity group (8.89%) had 6 times (OR=6.31, 95% CI, 2.69-14.83, P

  • Seroprevalence of chlamydial infection in Dairy Cattle in Guangzhou, southern China
    Irish veterinary journal, 2013
    Co-Authors: Dong-hui Zhou, Hui-yan Xia, Fu-rong Zhao, Si-yang Huang, Song Huiqun, Xing-quan Zhu
    Abstract:

    Chlamydia spp. are obligate intracellular gram-negative bacteria that cause a wide range of significant diseases in humans and animals worldwide, resulting in significant economic losses. Chlamydial infection in Cattle has been reported in many countries including China. However, there has been no survey of chlamydial infection of Dairy Cattle in Guangzhou, southern China. The objective of the present investigation was to examine the chlamydial seroprevalence in Dairy Cattle in Guangzhou, subtropical southern China by using an indirect hemagglutination assay (IHA). The overall seroprevalence of chlamydial infection in Dairy Cattle was 7.25% (29/400). Greater than or equal to eight-yr-old Dairy Cattle had the highest seroprevalence (10.34%), followed by those that were ≥ 6 years old or 0.05). Dairy Cattle with 5 pregnancies had the highest seroprevalence (10.81%). These results indicate that chlamydial infection was present in Dairy Cattle in Guangzhou, subtropical southern China, and integrated strategies and measures should be executed to control and prevent chlamydial infection and disease outbreak in the study region.

  • Seroprevalence of Toxoplasma gondii in Beef Cattle and Dairy Cattle in Northeast China
    Foodborne Pathogens and Disease, 2012
    Co-Authors: Jian-hua Qiu, Chun-ren Wang, Xu Zhang, Zhong-hua Sheng, Qiao-chen Chang, Quan Zhao, Feng-cai Zou, Xing-quan Zhu
    Abstract:

    Abstract The seroprevalence of Toxoplasma gondii in beef Cattle and Dairy Cattle in Heilongjiang Province, northeast China, was surveyed between April 2009 and May 2011. A total of 1803 (693 beef Cattle and 1110 Dairy Cattle) serum samples were collected from 10 administrative regions rearing beef Cattle and Dairy Cattle, and antibodies to T. gondii were examined by indirect hemagglutination (IHA) test. The overall seroprevalence of T. gondii in beef Cattle and Dairy Cattle was 2.6% (46/1803), and the prevalence in beef Cattle (3.0%) was slightly higher than that in Dairy Cattle (2.3%). The prevalence of antibodies in adult animals was higher than that in calves, but the differences among the age groups were not significant (p>0.05). The seroprevalence in female (3.4%) and male (2.5%) beef Cattle was not statistically significant (p>0.05). Though the prevalence in intensively reared beef Cattle and Dairy Cattle was lower than that in semi-intensively reared animals, the difference was not statistically si...

  • Seroprevalence of Neospora caninum infection in Dairy Cattle of Southern China.
    The Journal of parasitology, 2010
    Co-Authors: Hui-yan Xia, Dong-hui Zhou, Kun Jia, Xian-bin Zeng, Dun-wei Zhang, Li-xuan She, Rui-qing Lin, Zi-guo Yuan, Xing-quan Zhu
    Abstract:

    A seroepidemiological survey of Neospora caninum infection in Dairy Cattle was carried out in China's southern Guangdong Province between July 2009 and March 2010. A total of 370 serum samples of Dairy Cattle was collected from 5 farms and examined for antibodies to N. caninum by enzyme-linked immunosorbent assay. The overall seroprevalence of N. caninum in Dairy Cattle was 18.9% (70/370). The seroprevalence of N. caninum in aborting cows (22.7%) was higher than that in nonaborting cows (16.3%), but the difference was not statistically significant (P > 0.05). Five-yr-old Dairy Cattle had the highest seroprevalence (27.8%), followed by those that were 6-yr-old (20.4%). Dairy Cattle with 4 pregnancies had the highest seroprevalence (29.2%). There was no apparent association of N. caninum seropositivity with age or number of pregnancies (P > 0.05). The results of the present survey indicated that the infection with N. caninum is prevalent in Dairy Cattle of all ages in southern China, which may be one of the causes of bovine abortion. This is the first report of seroprevalence of N. caninum in Dairy Cattle in southern China.

Itsuro Yamane - One of the best experts on this subject based on the ideXlab platform.

  • Seroprevalence of Neospora caninum in Dairy Cattle in Bahia, Brazil
    Veterinary Parasitology, 1999
    Co-Authors: Luis Fernando Pita Gondim, I. F. Sartor, M Hasegawa, Itsuro Yamane
    Abstract:

    Abstract Sera collected from 447 Dairy Cattle on 14 Dairy farms were tested for Neospora caninum antibodies by use of an immunofluorescent antibody technique. Positive reactions with titres ≥1 : 200 were found in 63 (14.09%) of animals. Neospora positive sera were also tested for Toxoplasma gondii antibodies by using a commercial latex agglutination test. Antibodies to T. gondii were detected in 3 (4.76%) of 63 N. caninum positive sera. These results indicate that N. caninum infection is widespread among Dairy Cattle in Bahia state.

Luis Fernando Pita Gondim - One of the best experts on this subject based on the ideXlab platform.

  • Seroprevalence of Neospora caninum in Dairy Cattle in Bahia, Brazil
    Veterinary Parasitology, 1999
    Co-Authors: Luis Fernando Pita Gondim, I. F. Sartor, M Hasegawa, Itsuro Yamane
    Abstract:

    Abstract Sera collected from 447 Dairy Cattle on 14 Dairy farms were tested for Neospora caninum antibodies by use of an immunofluorescent antibody technique. Positive reactions with titres ≥1 : 200 were found in 63 (14.09%) of animals. Neospora positive sera were also tested for Toxoplasma gondii antibodies by using a commercial latex agglutination test. Antibodies to T. gondii were detected in 3 (4.76%) of 63 N. caninum positive sera. These results indicate that N. caninum infection is widespread among Dairy Cattle in Bahia state.

Champak Bhakat - One of the best experts on this subject based on the ideXlab platform.

M Hasegawa - One of the best experts on this subject based on the ideXlab platform.

  • Seroprevalence of Neospora caninum in Dairy Cattle in Bahia, Brazil
    Veterinary Parasitology, 1999
    Co-Authors: Luis Fernando Pita Gondim, I. F. Sartor, M Hasegawa, Itsuro Yamane
    Abstract:

    Abstract Sera collected from 447 Dairy Cattle on 14 Dairy farms were tested for Neospora caninum antibodies by use of an immunofluorescent antibody technique. Positive reactions with titres ≥1 : 200 were found in 63 (14.09%) of animals. Neospora positive sera were also tested for Toxoplasma gondii antibodies by using a commercial latex agglutination test. Antibodies to T. gondii were detected in 3 (4.76%) of 63 N. caninum positive sera. These results indicate that N. caninum infection is widespread among Dairy Cattle in Bahia state.