The animal hygiene in the new century

The objective of this work is to present a prospective viewpoint of animal hygiene in the new century. A short history of the International Society for Animal Hygiene and its recommendations to improve animal production, food protection and public health in the immediate future, are detailed

Efecto de la vía de administración de prostaglandinas sobre el porcentaje de gestación en becerras lecheras

Córdova–Izquierdo, A.; Xolalpa–Campos, V.M.; Ruiz–Lang, C.G.; Saltijeral–Oaxaca, J.A.; Córdova–Jiménez, C.A.: Efecto de la vía de administración de prostaglandinas sobre el porcentaje de gestación en becerras lecheras. Rev. vet. 22: 1, 74–76, 2011 Palabras clave: vaquillas lecheras, sincronización de estros, prostaglandinas, inseminación a tiempo fijo, porcentaje de gestación

Efecto de la mastitis y el estrés sobre la reproducción de la vaca

Debido a los innegables adelantos genéticos y nutricionales, la industria lechera puede hoy producir con alta eficiencia mayor cantidad de leche por vaca y por año. No obstante, estas mejoras pueden quedar relegadas por la aparición de problemas como el bajo desempeño reproductivo de los animales. Tanto en sus formas clínica como subclínica, la mastitis está ligada al estrés de la vaca lechera y tal asociación perjudica considerablemente su desempeño reproductivo. Los productores ganaderos deberán prestar preferencial atención a la tarea de mejorar las condiciones ambientales y de manejo en sus unidades de producción, dado que tales condiciones son en gran parte las responsables del deterioro de la salud de los animales y repercuten en la aparición de trastornos reproductivos, aumentando de manera importante los costos de producción de la industria lechera

Seroprevalencia de enfermedades causantes de aborto bovino en el trópico húmedo mexicano

Brucelosis, leptospirosis, rinotraqueítis bovina infecciosa (IBR) y diarrea viral bovina (DVB) son enfermedades causantes de abortos y provocan grandes pérdidas de producción. La prevalencia de tales afecciones está insuficientemente estudiada en el ganado del trópico húmedo mexicano. El objetivo de este trabajo fue determinar la seroprevalencia de brucelosis, leptospirosis, IBR y DVB en bovinospara carne de cuatro unidades de producción animal ubicadas en dicha área geográfica.Se analizaron sueros sanguíneos de 267 hembras con antecedentes de abortos, a través delas técnicas ELISA e inmunofluorescencia indirecta para el diagnóstico de las enfermedadesvirales y mediante la prueba de tarjeta y fijación de complemento para las enfermedadesbacterianas respectivamente. Promediando las tasas de las cuatro unidades de producciónanimal, donde se examinaron respectivamente 99, 74, 20 y 74 animales, los porcentajes dereactantes positivos fueron: 13,96% para brucelosis, 55,32% para leptospirosis, 13,66% paraIBR y 12,27% para DVB. La prevalencia detectada exige la adopción de estrictas medidasde control higiénico-sanitario

Preliminary clinical study of left ventricular myocardial strain in patients with non-ischemic dilated cardiomyopathy by three-dimensional speckle tracking imaging

<p>Abstract</p> <p>Background</p> <p>Non-ischemic dilated cardiomyopathy (DCM) is the most common cardiomyopathy worldwide, with significant mortality. Correct evaluation of the patient's myocardial function has important clinical significance in the diagnosis, therapeutic effect assessment and prognosis in non-ischemic DCM patients. This study evaluated the feasibility of three-dimensional speckle tracking imaging (3D-STE) for assessment of the left ventricular myocardial strain in patients with non-ischemic dilated cardiomyopathy (DCM).</p> <p>Methods</p> <p>Apical full-volume images were acquired from 65 patients with non-ischemic DCM (DCM group) and 59 age-matched normal controls (NC group), respectively. The following parameters were measured by 3D-STE: the peak systolic radial strain (RS), circumferential strain (CS), longitudinal strain (LS) of each segment. Then all the parameters were compared between the two groups.</p> <p>Results</p> <p>The peak systolic strain in different planes had certain regularities in normal groups, radial strain (RS) was the largest in the mid region, the smallest in the apical region, while circumferential strain (CS) and longitudinal strain (LS) increased from the basal to the apical region. In contrast, the regularity could not be applied to the DCM group. RS, CS, LS were significantly decreased in DCM group as compared with NC group (<it>P </it>< 0.001 for all). The interobserver, intraobserver and test-retest reliability were acceptable.</p> <p>Conclusions</p> <p>3D-STE is a reliable tool for evaluation of left ventricular myocardial strain in patients with non-ischemic DCM, with huge advantage in clinical application.</p

Left ventricular morphology and function in adolescents: Relations to fitness and fatness.

BACKGROUND: Obesity in childhood predisposes individuals to cardiovascular disease and increased risk of premature all-cause mortality. The aim of this study was to determine differences in LV morphology and function in obese and normal-weight adolescents. Furthermore, relationships between LV outcomes, cardiorespiratory fitness (CRF) and adiposity were explored. METHODS: LV morphology was assessed using magnetic resonance imaging (MRI) in 20 adolescents (11 normal-weight [BMI equivalent to 18kg/m(2)-25kg/m(2)] and 9 obese [BMI equivalent to ≥30kg/m(2)]); 13.3±1.1years, 45% female, Tanner puberty stage 3 [2-4]) using magnetic resonance imaging (MRI). Global longitudinal strain (GLS), strain rate (SR) and traditional echocardiographic indices were used to assess LV function. CRF (peak oxygen consumption), percent body fat (dual-energy x-ray absorptiometry), abdominal adipose tissue (MRI), and blood biochemistry markers were also evaluated. RESULTS: Adolescents with obesity showed significantly poorer LV function compared to normal-weight adolescents (P0.05). Moderate to strong associations between myocardial contractility and relaxation, adiposity, arterial blood pressure and cardiorespiratory fitness were noted (r=0.49-0.71, P<0.05). CONCLUSION: Obesity in adolescence is associated with altered LV systolic and diastolic function. The notable relationship between LV function, CRF and adiposity highlights the potential utility of multidisciplinary lifestyle interventions to treat diminished LV function in this population. CLINICAL TRIAL REGISTRATION: NCT01991106