Seroprevalencia De Leucosis Enzoótica Bovina en Animales Entre 6 a 24 Meses en Las Provincias De Manabí, Pichincha Y Chimborazo - Ecuador

Torres, Byron Humberto Puga; Vásconez-Hernández, Adriana; Sandoval-Valencia, Patricio; Cueva-Jácome, Francisco De La

doi:10.17163/lgr.n26.2017.11

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…El 100 % de los productores del sistema vaca-cría en el estado de Tabasco realiza vacunación y desparasitación. Realizar un manejo sanitario es importante, ya que ayuda a prevenir enfermedades y reducir las pérdidas productivas (Vásconez-Hernández et al, 2017).…”

Section: Uso De Tecnología En Las Unidades De Producción Del Sistema unclassified

Factores que determinan la producción de becerros en el sistema vaca-cría del Estado de Tabasco, México

Bautista-Martínez

Granados-Zurita

Cancino

et al. 2020

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Introduction: The cow-calf system consists of the production of calves, which will then be fattened for meat production. The state of Tabasco a high percentage of farmers are engaged in this activity, however, most of the technology transfers are focused on the dual purpose system, which has not allowed to make significant improvements in the productive variables of the cow-calf system. The objective of this study was to characterize the cow-calf system and identify the factors that affect the production of calf in the State of Tabasco. Method: Therefore, 342 farmers were interviewed through a structured survey to get information about the farmer date, social characteristics, infrastructure, herd structures, management practices and productive. To identify the types of farmers, a cluster analysis was performed by the Ward method and Euclidean square distance, and to identify the variables that explain the production of calves, a linear regression analysis.Results: The cluster analysis identified three types of farmers (small, medium, and large). 63.40% of the farmers were classified as small (<of 14 cows in production), 29.0% as medium (between 15 and 34 cows in production) and 7.60% as large producers (between 35 and 80 cows in production). In the three types of farmers the number of cows in production, index of adoption of technology and quantity of concentrated feed explain the production of calf.Discussion or Conclusion: The characterization of the cow-calf system of tropical regions is important because more than half of the livestock in these regions use this system of production. In addition, knowing the factors that determine the production of calf can help generate strategies for the support of this type of farmers and improve the productive variables of the system.

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Section: Uso De Tecnología En Las Unidades De Producción Del Sistema unclassified

Factores que determinan la producción de becerros en el sistema vaca-cría del Estado de Tabasco, México

Bautista-Martínez

Granados-Zurita

Cancino

et al. 2020

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Seropositivity for Bovine Viral Diarrhea and Enzootic Bovine Leukemia viruses in Blanco Orejinegro cattle in Colombia and infection associated-factors

Saldarriaga-Saldarriaga

Londoño

Herrera

et al. 2021

Rev. Med. Vet. Zoot.

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Serological controls for diseases of viral origin in animal production systems and the identification of factors associated with infections are decisive elements to establish prevention and control measures. The aim of this study was to establish the serological status for Bovine Viral Diarrhea (BVD) and Enzootic Bovine Leukemia (EBL) viruses in Blanco Orejinegro (BON) cattle from Colombia, and to identify the factors associated with seropositivity. A cross-sectional study was conducted with a total of 498 animals of all age groups and physiological states of the BON breed were selected, belonging to 14 herds located in 6 states of Colombia, in which a survey with 27 questions was conducted. By means of the chi-square test, possible factors associated with seropositivity against the 2 viruses were identified. A sample of 4 ml of blood was taken from each animal to extract plasma and make indirect Elisa tests to detect antibodies against both pathogens. General seropositivity of 27,1% was obtained for EBL, finding as factors associated with seropositivity the inadequate disposition of placental tissues after delivery of the cows and the non-performance of serological tests on new animals entering the herd. For BVD, seropositivity obtained was 50,6%, and the factors associated with seropositivity identified were having had a history of the disease in the herd, and using semen from bulls that are not known to be free for the infection. We suggest establishing control measures considering the factors associated with each viral infection to limit their expansion in the BON cattle production systems of Colombia.

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Descriptive cross-sectional study on major bovine diseases and associated risk factors in north-eastern Ecuadorian Amazon

et al. 2023

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Cattle raising is a crucial element of production systems in the tropics and subtropics. However, in recent years, global public health security has been threatened by disease emergence. In Orellana Province, livestock is the most important activity to generate economic income. Nevertheless, there is no available data about Animal Health status. With this objective, a study was performed to describe the major Bovine diseases recorded between 2011 to 2019, and the main Risk factors associated. Data on main Bovine diseases were retrieved from the World Animal Health Information System database. Whereas Bovine population data used to calculate the prevalence rates and confidence intervals were obtained from Ecuador's Ministry of Agriculture. By contrast, the Risk factors identified with an epidemiological questionnaire were applied to 300 livestock farmers. As a result, from 2011 to 2019 in Orellana has been confirmed: 90 cases of Infectious Bovine Rhinotracheitis (31.58%), Bovine Rabies by hematophagous bats (Desmodus rotundus), 83 cases (29.12%), Bovine viral diarrhea with 43 cases (15.10%), Brucellosis by Brucella abortus 35 cases, which was (12.28%), and 34 cases related to Enzootic bovine leukosis (11.92%). Overall, the prevalence rates ranged from (0.24 to 15.37%). In addition, farm size, presence of forest, herd, and paddock sizes, cutting frequency of forages, and other animal species were involved as Risk factors (OR = 3.15 to 11.75; 95% CI, 0.01 to 0.69). In conclusion, there are animal diseases with reproductive and neurologic symptomology and high-Risk factors implicated in the transmission. Consequently, space-temporal and seroprevalence epidemiological studies should be performed in Orellana.

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Seroprevalencia De Leucosis Enzoótica Bovina en Animales Entre 6 a 24 Meses en Las Provincias De Manabí, Pichincha Y Chimborazo - Ecuador

Cited by 4 publications

References 5 publications

Factores que determinan la producción de becerros en el sistema vaca-cría del Estado de Tabasco, México

Factores que determinan la producción de becerros en el sistema vaca-cría del Estado de Tabasco, México

Seropositivity for Bovine Viral Diarrhea and Enzootic Bovine Leukemia viruses in Blanco Orejinegro cattle in Colombia and infection associated-factors

Descriptive cross-sectional study on major bovine diseases and associated risk factors in north-eastern Ecuadorian Amazon

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