Browsing Artículos Científicos by Title
Now showing items 367-386 of 598
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Mast Cell Tumour in a Giant Galapagos Tortoise (Geochelone nigra vicina)
(Elsevier, 2008)A well-differentiated cutaneous mast cell tumour was diagnosed in a subadult female giant Galapagos tortoise. The tumour was a pedunculated, verrucose mass located near the base of the neck. The histological features, which ... -
Measurement of thyroid hormones and cortisol in horses with an automated immunoassay analyzer
(Universidad Nacional, Costa Rica, 2016-02-17)Abstract: Even though thyroid gland diseases are unusual in horses, it is important to have a reference interval for thyroid hormones in this species at every veterinary endocrine laboratory. In addition, cortisol and ... -
Medroxiprogesterona acetato para la elaboración de dispositivos intravaginales caseros usados en la sincronización del estro en ovinos de pelo: Evaluación de su eficacia, sus efectos secundarios y comparación con un dispositivo comercial en hatos de Costa Rica.
(Universidad Nacional, Costa Rica, 2017-06-28)El objetivo del trabajo fue determinar la eficacia farmacológica y los efectos secundarios de un dispositivo intravaginal de fabricación casera elaborado con acetato de medroxiprogestrona para la sincronización del estro ... -
Mejoramiento de la reproducción bovina: leche, carne y calidad seminal
(Tecnológico de Costa Rica, 2022-09-14)La eficiencia reproductiva tiene un impacto importante en la rentabilidad de la industria ganadera. Un porcentaje significativo de insuficiencia reproductiva es atribuible a la subfertilidad del toro (Butler et al., 2020). ... -
Modeling extended lactations of dairy cows
(American Dairy Science Association, 2000-06)Nine mathematical models were compared for their ability to predict daily milk yields (n = 294,986) in stan- dard 305-d and extended lactations of dairy cows of Costa Rica. Lactations were classified by parity ... -
Modeling the association between Aedes aegypti ovitrap egg counts, multi-scale remotely sensed environmental data and arboviral cases at Puntarenas, Costa Rica (2017–2018)
(Elsevier, 2021-02)Problems with vector surveillance are a major barrier for the effective control of vector-borne disease transmission through Latin America. Here, we present results from a 80-week longitudinal study where Aedes aegypti (L.) ... -
Modelo estocástico para estimación de valores económicos de rasgos productivos y funcionales en bovinos lecheros
(Agrociencia, 2009)En programas de mejoramiento genético es necesario contar con estimadores del valor económico de los rasgos que se desean seleccionar. El objetivo del presente estudio fue construir un modelo estocástico para el cálculo ... -
Modelo estocástico para evaluación bio-económica de un sistema de producción bovino de cría y engorde bajo condiciones de pastoreo
(LRRD News, 2009)Se construyó un modelo estocástico de simulación representativo de un sistema de producción bovino de cría y engorde bajo condiciones de pastoreo. El modelo se utilizó para estimar el rendimiento bioeconómico anual del ... -
Modified abaxial sesamoid nerve block provides enhanced proximal diffusion compared to basisesamoid block and lower proximal diffusion than traditional low plantar nerve block in equine hind limbs: ex vivo and in vivo study
(AVMA, 2023)OBJECTIVE To determine the proximal diffusion distance of radiopaque contrast medium and mepivacaine/methylene blue solution and incidence of inadvertent intrasynovial and intravascular injections of modified sesamoid ... -
Molecular and immunohistochemical diagnosis of Francisella noatunensis subsp. orientalis from formalin-fixed, paraffin-embedded tissues
(Journal of Veterinary Diagnostic Investigation, 2012-07-11)Members of the genus Francisella (viz., F. noatunensis subsp. orientalis [Fno] and F. noatunensis subsp. noatunensis) have been described as causative agents of chronic granulomatous and pyogranulomatous lesions in wild ... -
Molecular and serological rapid tests as markers of Trypanosoma cruzi infection in dogs in Costa Rica
(Medknow Publications & Media Pvt. Ltd., 2014-07)Chagas disease is a zoonotic disease caused by Trypanosoma cruzi and dogs are one of the main domestic reservoirs. Materials and Methods: One molecular (OligoC‑TesT, Coris Bioconcept) and one serological (T. cruzi‑Detect, ... -
Molecular characterization of Brucella ovis in Argentina
(Elsevier B.V., 2020-04-22)La brucelosis en los carneros es causada por Brucella ovis o Brucella melitensis y se considera una de las enfermedades infecciosas más importantes de los machos en los países donde se crían ovejas. Caracterización molecular ... -
Molecular characterization of Chlamydia species in commercial and backyard poultry farms in Costa Rica
(Cambridge University Press, 2022-03-24)Outbreaks caused by Chlamydia psittaci and other chlamydial species have recently been reported in poultry farms worldwide, causing considerable economic losses. The objective of this study was to determine the presence ... -
Molecular characterization of Salmonella Paratyphi B dT+ and Salmonella Heidelberg from poultry and retail chicken meat in Colombia by Pulsed-Field gel electrophoresis
(International Association for Food Protection, 2015)Salmonella Paratyphi B dTz variant (also termed Salmonella Java) and Salmonella Heidelberg are pathogens of public health importance that are frequently isolated from poultry. As a step toward implementing the Colombian ... -
Molecular characterization of Trypanosoma cruzi and infection rate of the vector Triatoma dimidiate in Costa Rica
(Universidad Nacional, Costa Rica, 2012-06-30)According to the genetic characterization by the analysis of the miniexon gene, strains of Trypanosoma cruzi can be classified into six discrete typing units (DTUs), and the DTU 1 into four distinct genotypes associated ... -
Molecular detection and genotyping of chlamydia psittaci in captive psittacines from Costa Rica
(Veterinary Medicine International, 2013-08-18)Oropharyngeal and cloacal swabs from 117 captive psittacine birds presented at veterinary clinics (88) and from shelters/rescue centers of wildlife (29) were collected to determine the prevalence of C. psittaci in captive ... -
Molecular detection and identification of Rickettsiales pathogens in dog ticks from Costa Rica
(Ticks and Tick-borne Diseases, 2016-10)Although vector-borne diseases are globally widespread with considerable impact on animal production and on public health, few reports document their presence in Central America. This study focuses on the detection and ... -
Molecular detection of acute hepatopancreatic necrosis disease (AHPND) in Penaeus vannamei shrimps in Costa Rica
(Elsevier, 2020-03-02)Acute hepatopancreatic necrosis disease (AHPND) is a bacterial disease associated to severe mortality in farmed shrimps, and caused by Vibrio parahaemolyticus containing plasmid pVA-1 encoding pirA and pirB toxins. This ... -
Molecular detection of Plasmodium malariae/Plasmodium brasilianum in non-human primates in captivity in Costa Rica
(PLOS ONE, 2017-01-26)One hundred and fifty-two blood samples of non-human primates of thirteen rescue centers in Costa Rica were analyzed to determine the presence of species of Plasmodium using thick blood smears, semi-nested multiplex ... -
Molecular evidence of intraspecific variability in different habitat-related populations of Triatoma dimidiata (Hemiptera: Reduviidae) from Costa Rica
(Springer, 2010-02-18)Intraspecific genetic variation among Triatoma dimidiata (Hemiptera: Reduviidae) from seven Costa Rican populations and from different domestic, peridomestic, and sylvatic ecotopes were analyzed. The complete ...