The aim of this study was to determine the seroprevalence of Neospora caninum antibodies and its effects on reproductive parameters in cows in intensive dairy herds in Dakar. Randomised blood samples were taken for serology from 196 cows in four herds with a history of sporadic abortion. All of the sera were assayed for antibodies against N. caninum, Candida guillermondii, Coxiella burnetii, and Chlamydophila sp. The associations between serostatus and reproductive parameters (abortion, number of inseminations to conception, and calving to conception interval) were assessed over a period of 5 years (2004-2008). The seroprevalence of N. caninum antibodies in dairy cattle was 17.9%. The local Gobra breed and crossbreeds had higher levels of N. caninum antibodies than exotic breeds (p < 0.05). For the most recent pregnancies, seropositive cows required more inseminations to establish conception than seronegative cows (p < 0.05). The results indicate that dairy cattle from Dakar are exposed to N. caninum. Neosporosis should, therefore, be systematically considered as a cause when the calving to conception interval is prolonged.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11250-009-9513-6 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Seroprevalence of bovine Herpesvirus-1, bovine viral diarrhoea virus, Neospora caninum and Coxiella burnetii in dairy cows in Ethiopia.
BMC Res Notes
December 2024
Ethiopian Institute of Agricultural Research, National Agricultural Biotechnology Research Center, P.O. Box: 249, Holeta, Ethiopia.
Background: The reproductive problem is an animal health-related bottleneck that constrains livestock genetic improvement efforts in tropical countries such as Ethiopia. The infectious causes of reproductive disorders are one cause of decreased reproductive efficiency. This study aimed to determine the seroprevalence to Bovine Herpesvirus-1 (BHV1), Bovine Viral Diarrhea Virus (BVDV), Neospora caninum (N.
View Article and Find Full Text PDFEvaluation of a 70 kDa Excreted/Secreted Coproantigen Immunoassay for the Detection of in Dogs.
Iran J Parasitol
January 2024
Department of Invertebrates Zoology, Biological Sciences School, Autonomous University of Nuevo León, San Nicolás de los Garza, Nuevo León, México.
Background: We aimed to develop a sandwich ELISA, using polyclonal antibodies against excretory/secretory (E/S) antigens specific to coproantigens present in -positive dogs.
Methods: Antibodies were produced at Biological Sciences School, Autonomous University of Nuevo León, in 2023 by immunization of rabbits with antigenic extracts from in vitro cultures of larvae. Assays were performed on 100 stool samples from pet dogs, measuring sensitivity, specificity, and cross-reactivity against other parasitic infections.
Epidemiology of Bovine Neosporosis in Relation to Socioeconomic, Demographic, and Transmissibility Factors in Dual-Purpose Production Systems in Colombia.
Epidemiologia (Basel)
December 2024
Centro de Investigación Turipaná, Corporación Colombiana de Investigación Agropecuaria AGROSAVIA, km 13 vía Montería, Cereté 230550, Colombia.
Introduction: Bovine neosporosis represents a significant threat to reproduction and production in livestock systems worldwide. This disease is caused by the protozoan , resulting in abortions of cows and neurological signs in newborn calves. This leads to significant economic losses, decreasing meat and milk production, especially in tropical regions.
View Article and Find Full Text PDFShedding light on risk: Seroprevalence of Q fever among farm animals and workers in Ecuador.
One Health
December 2024
One Health Research Group, Facultad de Ciencias de la Salud, Universidad de Las Américas, Quito, Ecuador, 170503.
Q fever, caused by the bacterium , is a zoonotic disease that has been largely overlooked despite presenting significant risks to both animal and public health. Although well studied in some countries, in most countries in Latin America, there's a lack of information on infection, its prevalence, and its impact on both livestock and human populations. To address this gap, we conducted a serosurvey among farm workers, cattle, sheep, and dogs on two dairy farms in Ecuador using a commercial ELISA kit.
View Article and Find Full Text PDFFirst report of acute, visceral, fatal toxoplasmosis in a naturally infected calf (Bos taurus).
Vet Parasitol
December 2024
Idexx Laboratories Hamilton, 20A Maui Street, Pukete, Hamilton 3200, New Zealand.
Article Synopsis
- Cattle are generally resistant to clinical toxoplasmosis, and there hasn't been a confirmed case until now.
- A calf in New Zealand died from acute toxoplasmosis in 2012, showing severe lesions in various organs.
- Diagnosis was confirmed through immunohistochemistry, identifying T. gondii, with significant tissue damage and many tachyzoites and cysts present.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!