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Neosporacaninum, etc ; Toxoplasma gondii; blood; calcium; calcium ionophores; cattle; microscopy; parasites; parasitology; research; tachyzoites; Show all 11 Subjects
Abstract:
... Neospora caninum represents an obligate intracellular parasite that belongs to the phylum Apicomplexa and is a major abortive agent in bovines. During merogony, N. caninum tachyzoites invade and proliferate in host cells in vivo, including endothelial cells of lymphatic and blood vessels. The egress at the end of the lytic cycle is tightly regulated in apicomplexans. Evidence in Toxoplasma gondii ...
Neosporacaninum, etc ; Neospora hughesi; Sarcocystis neurona; Toxoplasma gondii; equine protozoal myeloencephalitis; host range; parasites; parasitology; Show all 8 Subjects
Abstract:
... Sarcocystis neurona, Neospora spp. and Toxoplasma gondii are related protozoans; they were considered the same parasite until 1970s. Two of these parasites, S. neurona and Neospora spp. are associated with a neurological syndrome in horses, called equine protozoal myeloencephalitis (EPM). The diagnosis and treatment of EPM are difficult. Most cases of EPM are related to S. neurona while only a few ...
Neosporacaninum, etc ; Protozoa; cattle industry; etiology; meta-analysis; parasites; statistical models; systematic review; veterinary medicine; China; Show all 10 Subjects
Abstract:
... Neospora caninum, an intracellular protozoan, has attracted much attention because of the etiology of reproductive disorders in cattle. Although numerous relevant studies have been published, the overall prevalence of Neospora caninum infection among cattle in mainland China is still unknown, and associated risk factors need to be evaluated to establish preventive measures. We systematically searc ...
Neosporacaninum, etc ; Canidae; blood serum; definitive hosts; enzyme-linked immunosorbent assay; farms; neosporosis; parasites; seroprevalence; Italy; Show all 10 Subjects
Abstract:
... Neosporosis is recognized as one of the major causes of bovine abortion worldwide. Canids are the main definitive host for this parasite and the presence of dogs in the farm is an important factor for the Neospora caninum infection in bovines. Since, in the province of Lecce, located in the Apulia region of Southern Italy, there are no studies showing the presence of the infection in farm animals, ...
... Transplacental transmission of Neospora caninum and Toxoplasma gondii is well known in some domestic species and despite both parasites having been proved to infect deer fetuses during gestation, the congenital transmission rate in South-American deer species is still unknown. This study aimed to estimate the congenital transmission rate of neosporosis and toxoplasmosis in captive deer populations ...
Ana Huertas-López; Roberto Sánchez-Sánchez; Carlos Diezma-Díaz; Gema Álvarez-García; Carlos Martínez-Carrasco; Silvia Martínez-Subiela; José Joaquín Cerón
... Ovine neosporosis, caused by the Apicomplexan parasite Neospora caninum, leads to reproductive failure worldwide. Nowadays, there is a trend to develop diagnostic techniques using non-invasive samples, such as milk, in order to reduce animal stress, sample collection effort, and costs. The objective of this study was to develop and validate a highly sensitive and specific serological technique, ba ...
Neosporacaninum, etc ; Canidae; cattle; dingoes; dogs; economic impact; genetic analysis; genotype; hosts; oocysts; parasites; reproduction; species identification; streams; wildlife; Australia; Show all 16 Subjects
Abstract:
... Infection with Neospora caninum parasites is a leading cause of reproduction losses in cattle worldwide. In Australia, this loss is estimated to total AU$110 million every year. However, despite this considerable economic impact, the transmission cycle and the host(s) responsible for the sylvatic transmission of the parasite remain to be defined. Dingoes (Canis familiaris) have been suggested to b ...
Neosporacaninum, etc ; cattle; data collection; farms; hosts; latitude; longitude; meta-analysis; neosporosis; seroprevalence; sheep; statistical models; systematic review; Africa; Colombia; Show all 15 Subjects
Abstract:
... Neosporosis is recognized as the main cause of abortions in cattle worldwide and there is an increasing concern about its role in ovine reproductive losses; however, epidemiological studies regarding neosporosis in sheep are still limited. This meta-analysis aimed to estimate the global pooled seroprevalence and associated risk factors of ovine neosporosis. In the current report, a comprehensive s ...
Neosporacaninum, etc ; DNA; Toxoplasma gondii; animal health; blood; farms; hygiene; mixed infection; public water supply; regression analysis; seroprevalence; waste management; Mexico; Show all 13 Subjects
Abstract:
... The objective of the study was to analyse the prevalence of infection by N. caninum and T. gondii in breeding ewes from central western Mexico. For this purpose, 184 blood samples were collected from sheep in the reproductive stage, which were analysed by ELISA and PCR tests, respectively, and the association between seroprevalence and some management factors was estimated by means of a logistic r ...
Neosporacaninum, etc ; antibodies; blood; case studies; dairy cattle; epidemiological studies; farms; herds; milk; milk yield; neosporosis; parasites; serodiagnosis; seroprevalence; titration; Italy; Show all 16 Subjects
Abstract:
... Neospora caninum is recognized as a major cause of abortion in cattle, determining economic losses, particularly in dairy industries. To evaluate the impact of neosporosis on herd efficiency, and to understand how the serological analysis for N. caninum is explicative of the farm picture, an epidemiological study was designed in two dairy farms recruited as a case study. Blood samples were collect ...
... Neosporosis is a parasitic disease affecting the health of dogs and cattle worldwide. It is caused by Neospora caninum, an obligate intracellular apicomplexan parasite. Dogs are its definitive host, it mostly infects livestock animals, especially cattle that acts as intermediate host. It is necessary to have well-established models of abortion and vertical transmission in experimental animals, in ...
... Neospora caninum (Apicomplexa, Sarcocystidae) is a major cause of reproductive failure in cattle. In pigs, only a few studies investigated the effects of this parasite on reproductive efficiency. Considering the relevance of swine farms in northern Italian regions, an epidemiological survey was designed to investigate the spread of N. caninum infection. Three hundred seventy fattening pigs and sow ...
... Toxoplasma gondii and Neospora caninum are closely related cyst-forming parasites identified as important causes of reproductive failures in ruminants. While these parasites have been reported worldwide, seroprevalence and associated risk factors for cattle infections have not been determined in India. A total of 576 serum samples of cattle were analyzed for antibodies to T. gondii and N. caninum ...
... Neosporosis is a worldwide infectious disease caused by the obligate intracellular parasite protozoan Neospora caninum (N. caninum), which has a heteroxenous life cycle and affects a wide range of warm-blooded animals, especially canines and cattle. Here, a meta-analysis was conducted to assess the overall seroprevalence and potential risk factors for N. caninum infection among cattle in China. Th ...
... Different N. caninum strains with distinct biological characteristics and pathogenicity have been introduced from various areas of the world. This study aimed to detect Neospora-infection in different hosts from Iran using the nested-Polymerase Chain Reaction (PCR) technique and to perform the phylogenetic analysis of N. caninum isolates using the Nc-5 gene. Different species of parasite hosts (ca ...
Giovanna Gati de Souza; Lidiana Zanetti Amatti; Luana Venâncio Garcia; Letícia Ramos Costa; Ana Flávia Minutti; Thais Agostinho Martins; Alexey Leon Gomel Bogado; Fernanda Saules Ignácio; Breno Fernando Martins de Almeida; João Luis Garcia; Luiz Daniel de Barros
... Neosporosis, an infectious disease caused by the protozoan Neospora caninum, has been associated with economic losses in cattle rearing worldwide. However, previous studies have not presented any evidence regarding the association between serological status of neosporosis and alteration of the reproductive parameters. Thus, this study aimed to determine whether N. caninum is associated with reprod ...
Neosporacaninum, etc ; Belgian Blue; DNA; Protozoa; animal reproduction; antibodies; artificial vagina; barns; data collection; humidity; mortality; multivariate analysis; neosporosis; parasites; semen quality; seroprevalence; spermatogenesis; temperature; Show all 18 Subjects
Abstract:
... Neospora caninum is a protozoan parasite that causes abortion, perinatal mortality, and subfertility in cattle worldwide. Despite the presence of the DNA of the parasite in semen of infected bulls, the effect on semen quality has not been extensively studied. This study aimed to investigate the effect of a natural Neospora caninum infection on fresh and frozen semen quality parameters in Belgian B ...
Arlan Araujo Rodrigues; Danilo Rodrigues Barros Brito; Isabelli Sayuri Kono; Sara Silva Reis; Beatriz de Souza Lima Nino; Thiago Vinícius Costa Nascimento; Luiz Daniel de Barros; João Luis Garcia; Ivo Alexandre Leme da Cunha
... The aim of this work was to determine the seroprevalence of Neospora caninum in buffaloes (Bubalus bubalis) from Maranhão State, Brazil, and identify risk factors associated with infection. In total, 338 buffaloes of different ages and both sexes from four farms were randomly selected. Information about the study region, animals and management was collected using an epidemiological questionnaire. ...
Ezequiel Hidalgo-Hermoso; Javier Cabello; Juan Verasay; Dario Moreira-Arce; Marcos Hidalgo; Pedro Abalos; Consuelo Borie; Nicolas Galarce; Constanza Napolitano; Irene Sacristán; Aitor Cevidanes; Galia Ramírez-Toloza; Ariel Farias; Sophia Di Cataldo; Rocio Lagos; Javier Millán
... The Darwin's fox (Lycalopex fulvipes) is one of the most endangered carnivores worldwide, with the risk of disease spillover from domestic dogs being a major conservation threat. However, lack of epidemiologic information about generalist, non–dog-transmission-dependent protozoal and bacterial pathogens may be a barrier for disease prevention and management. To determine the exposure of some of th ...
Germán J. Cantón; Fabiana Moreno; María A. Fiorentino; Yanina P. Hecker; Maximiliano Spetter; Franco Fiorani; María G. Monterubbianesi; Juan A. García; Erika González Altamiranda; Karina M. Cirone; Enrique L. Louge Uriarte; Andrea E. Verna; Maia Marin; Felipe Cheuquepán; Rosana Malena; Claudia Morsella; Fernando A. Paolicchi; Eleonora L. Morrell; Dadin P. Moore
... The aims of this work are, firstly, to provide the geolocalization of cases of bovine abortion with definitive diagnosis and, secondly, to estimate the economic losses due to the most frequent abortifacients diagnosed agents in cattle in Buenos Aires province, Argentina. The total beef and dairy cattle population at risk of abortion is 8,358,186 and 538,076, respectively. In beef cattle, the overa ...