Seroprevalence of antibodies to Neospora caninum and associated abortion in dairy cattle from central Thailand

Suteeraparp, Pongsatorn; Pholpark, Satis; Pholpark, Manvika; Charoenchai, Apirom; Chompoochan, Tasanee; Yamane, Ichirō; Kashiwazaki, Yoshihito

doi:10.1016/s0304-4017(99)00130-2

Cited by 26 publications

(10 citation statements)

References 20 publications

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“…The result also reveals, for the first time, the occurrence of N. caninum infection in (Huong et al 1998;Duong et al 2008), Thailand (Suteeraparp et al 1999;Chanlun et al 2006), Malaysia (Cheah et al 2004), and the Philippines (Konnai et al 2008). The seroprevalence was not significantly associated with the age which might result from an inadequate grouping or suggest an effective transplacental transmission of N. caninum from the infected dam to her calf.…”

Section: Discussionmentioning

confidence: 67%

Seroprevalence of antibodies to Neospora caninum in Bos javanicus (‘Bali cattle’) from Indonesia

Damriyasa

Schares

Bauer

2009

Trop Anim Health Prod

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A cross-sectional survey was performed to obtain first information on the presence of Neospora caninum infection in Bos javanicus ('Bali cattle'), the predominant beef cattle in the Eastern Islands of Indonesia. Serum samples were collected from 438 Bali cattle of two age classes (<2 years, >2 years) and both genders at three slaughterhouses in the Bali island, and examined for N. caninum-specific antibodies using native NcSRS2 (p38 antigen) as an ELISA antigen. The estimated overall seroprevalence of antibodies was 5.5% (95% CI: 3.5-8.0%). The seroprevalence was not significantly associated with age class or gender of the animals. The results give first serological evidence for the presence of natural N. caninum infection in Bos javanicus and indicate its occurrence in Indonesia.

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Section: Discussionmentioning

confidence: 67%

Seroprevalence of antibodies to Neospora caninum in Bos javanicus (‘Bali cattle’) from Indonesia

Damriyasa

Schares

Bauer

2009

Trop Anim Health Prod

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“…The prevalences were varied among countries, regions, herds and even at different times of the same herds (Yu et al 2007), but there were a few reports on bovine neosporosis in Southeast Asia (Huong et al 1998;Suteeraparp et al 1999;Kashiwasaki et al 2001;Jittapalapong et al 2008;Arunvipas et al 2012). The present study revealed that the seroprevalence of N. caninum infections in dairy cows in northern Thailand were 46.9% by ELISA and 34.3% by IFAT, which was higher than previously reported in Thailand (6% by Suteeraparp et al 1999;10% by Jittapalapong et al 2008;11.7% by Arunvipas et al 2012a) and Vietnam (5.5% by Huong et al 1998). During the host-parasite interaction, the surface of parasite cells are the main targets of host immune response; therefore, the surface antigens of parasites should be the potential targets for diagnosis and vaccine.…”

Section: Discussionmentioning

confidence: 99%

“…Livestock development particularly in dairy cows of this country have been hampered by low production including milk and meat production due to the impact of many pathogens including N. caninum. There were a few reports of neosporosis in cattle (Suteeraparp et al 1999) with inconclusive results since the cost of damages were not truly estimated or represent the real losses of Thai farmers. More information will be beneficial for reducing cost of animal owners.…”

Section: Introductionmentioning

confidence: 99%

Seroprevalence of Neospora caninum infection in dairy cows in Northern provinces, Thailand

Inpankaew¹,

Jittapalapong

Mitchell

et al. 2014

Acta Parasitologica

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Neospora caninum, an obligate intracellular protozoan parasite, is the causative agent of neosporosis, recognized as a major cause of bovine abortion around the world. Thailand is a developing agricultural country located in Southeast Asia. Livestock developments particularly in dairy cows of this country have been hampered by low productivity including milk and slow growth rate due to the impact of many pathogens including N. caninum. Currently, there is no effective method for control of neosporosis since there is less information regarding current status of infections. The objective of this study was to investigate the seroprevalence of neosporosis in dairy cows of the northern part of Thailand. During 2006-2007, the sera of 642 cows from 42 small farm holders with the top three highest consensus of dairy farms in the northern provinces, such as Chiang Rai, Chiang Mai and Lumpang were collected and performed tests. Antibodies to N. caninum were assayed by enzyme-linked immunosorbent assay (ELISA) with recombinant N. caninum surface antigen 1 (NcSAG1) and indirect fluorescent antibody test (IFAT). The overall prevalence of N. caninum infection in this study was 46.9% (301/642) by ELISA and 34.3% (220/642) by IFAT.

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“…Surra has been associated with reproductive problems (i.e. abortions, stillbirths) in buffaloes (Lohr et al, 1986;Kashiwazaki et al, 1998) and in other animals (Arunasalam et al, 1995;Kashiwazaki et al, 1998;Suteeraparp et al, 1999;Gutierrez et al, 2006). Reduced calving rate in high surra risk areas could also be attributed to reduced fertility of infected bulls.…”

Section: Discussionmentioning

confidence: 99%

Estimating the impact of Trypanosoma evansi infection (surra) on buffalo population dynamics in southern Philippines using data from cross-sectional surveys

Dargantes

Mercado²,

Dobson

et al. 2009

International Journal for Parasitology

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Despite the widespread problem with surra (Trypanosoma evansi) in livestock, there are no published studies on its impact on host populations, probably because of the large financial and time cost involved in performing longitudinal studies. During 2002-6, a cross-sectional survey for T. evansi infection involving 1,732 buffaloes from 71 villages in southern Philippines was carried out. Other livestock animals (horses, cattle and goats) in every surveyed village were also tested for infection with T. evansi but domestic buffalo were the primary survey target. Seroprevalence ranged from 6% to 21% and 13% to 100% for buffalo in low and high risk areas, respectively. Key demographic parameters were estimated from the age structured distributions of the sampled buffalo population for each sex. All areas were dominated by females (69%) and the annual calving rate for areas of 100% and low seroprevalence was 15% and 47%, respectively. Males were removed at a relatively high annual rate of 27% in all areas. In the main reproductive years (4-10) female removal/mortality was <1% and 10% for low and high risk areas, respectively. Older females were removed/died at a rate similar to males regardless of area. In high risk areas there were consistently more 2-year than 1-year old females and the reverse was true for the low risk areas. This implies that females were imported to the high risk areas for breeding. By assuming a stable age structure and similar size populations in each area, it was estimated that 28% of female calves need to be moved from low to high risk areas to maintain the observed age structure. In high-risk areas, surra imposes significant financial losses due to reduced fertility, high mortality/removal rate and the necessity to import replacement buffalo.

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Seroprevalence of antibodies to Neospora caninum and associated abortion in dairy cattle from central Thailand

Cited by 26 publications

References 20 publications

Seroprevalence of antibodies to Neospora caninum in Bos javanicus (‘Bali cattle’) from Indonesia

Seroprevalence of antibodies to Neospora caninum in Bos javanicus (‘Bali cattle’) from Indonesia

Seroprevalence of Neospora caninum infection in dairy cows in Northern provinces, Thailand

Estimating the impact of Trypanosoma evansi infection (surra) on buffalo population dynamics in southern Philippines using data from cross-sectional surveys

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