Evaluación de la capacidad de cubrición de los moruecos

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Evaluating the reproductive ability of breeding rams in North-Eastern Spain using clinical examination of the body and external genitalia

Background Predicting the ability of rams to detect, mate and fertilise ewes in oestrus accurately is certainly difficult; however, tests based on clinical examinations have been performed to assess the overall potential capacity of rams to serve and impregnate ewes. Clinical examinations for breeding soundness evaluation were carried out in 897 Rasa Aragonesa (RA) rams from 35 flocks in North-Eastern (NE) Spain. Clinical examinations of head, trunk, limbs and genitals were performed in each ram. Blood samples were collected for a serological study of Brucella ovis. The sheep owners were surveyed regarding the characteristics of the flock, rams’ health history and the management of rams. The clinical alterations found were classified according to severity (mild or severe). Rams were classified as suitable (without lesions or with only mild lesions) or unsuitable (with severe lesions) for breeding depending on the results of the clinical examinations. Results The results showed that 60.6 % of rams presented some type of alteration (mild: 43.3 %; severe: 17.3 %) in various body parts (genitalia: 31.6 %; head and trunk: 37.2 %; limbs: 15.5 %), and that 16.7 % of rams were classified as unsuitable breeders. The most common genital alterations were ulcerative posthitis (18.7 %) followed by testicular lesions (5.3 %). The highest prevalence of unsuitable breeders was found in the category of adult and aged rams (13.8 % and 37.4 %, respectively) and in the category of emaciated rams (33.3 %). All rams examined were seronegative to Brucella ovis. The mean percentage of rams in flocks was 2.8 % (min: 1.6 %; max: 4.6 %); nevertheless, this percentage dropped to 2.5 % (min: 1.4 %; max: 3.7 %) and 2.1 % (min: 0.3 %; max: 3.5 %) when only suitable or effective (suitable mature) rams were considered. Conclusion Thus, it is concluded that there are fewer effective rams in farms than farmers realise. Frequent clinical examination of males is recommended in order to identify potentially infertile rams.Publishe

Desarrollo de un dispositivo intravaginal para la recogida de semen en ganado ovino

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Diagnóstico precoz de gestación en ovejas a partir de muestras de plasma sanguíneo analizadas mediante espectroscopia en el infrarrojo cercano (NIRS)

Se ha realizado un estudio para determinar si es posible diferenciar las ovejas gestantes de las vacías en un momento cercano a la inseminación analizando el plasma sanguíneo con la tecnología NIRS (Near-infrared reflectance spectroscopy) y comparar el grado de precisión del diagnóstico con la determinación de Pregnancy-Associated Glycoprotein (PAG) y de Progesterona (P4). Se tomaron muestras de sangre en 188 ovejas Rasa Aragonesa y Ansotana 18 y 25 días después de ser inseminadas. En el plasma recuperado, se analizó la concentración de PAG y de P4 mediante ELISA con kits comerciales y se determinó el espectro en un espectrofotómetro NIRS. La fertilidad de la IA fue del 47,9%. El día 18 el NIRS mostró una mayor sensibilidad para detectar las ovejas gestantes que la PAG (sensibilidad: 98,9 vs 32,2 %; P<0,001) y similar a la P4. La especificidad fue 100% en NIRS y PAG, mientras que la de la P4 fue menor (84,7; P<0,001). El día 25 no se encontraron diferencias en ningún parámetro entre NIRS y PAG. Se concluye que el NIRS es un método seguro de diagnóstico de gestación en ovejas a partir del día 18 de la fecundación y sin utilizar compuestos químicos.PublishedPremio "Mejores Trabajos sobre el sector de los Pequeños Rumiantes". Sección Grupos de Investigación. SEOC 201

Estrategias para aumentar la eficiencia reproductiva del ovino de carne

PublishedCapítulo

Rendimiento del MOET aplicado al programa de selección de la Rasa Aragonesa de UPRA-Grupo Pastores

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Clinical finding in Rasa Aragonesa rams

Este trabajo ha recibido un diploma a la comunicación científica más valorada dentro de la Sección de Reproducción por el Comité Científico del Congreso.En este estudio se muestran resultados preliminares de un análisis clínico y epidemiológico realizado sobre una población de moruecos (n=113) de varias explotaciones de Aragón. A cada animal se le realizó una evaluación clínica general y genital para observar incidencia de lesiones o anomalías anatómicas. Además, se encuestó a los encargados de las explotaciones a cerca del historial y los criterios más empleados para la reposición y eliminación de moruecos.In this study we show preliminary results of a field clinical and epidemiological survey carried out in rams (n = 113) on several farms in Aragon. Each animal were clinically examined for general and genital abnormalities. Moreover, sheep producers were surveyed for the most important ram reposition and culling criteria

Effects of pre-operative isolation on postoperative pulmonary complications after elective surgery: an international prospective cohort study an international prospective cohort study

We aimed to determine the impact of pre-operative isolation on postoperative pulmonary complications after elective surgery during the global SARS-CoV-2 pandemic. We performed an international prospective cohort study including patients undergoing elective surgery in October 2020. Isolation was defined as the period before surgery during which patients did not leave their house or receive visitors from outside their household. The primary outcome was postoperative pulmonary complications, adjusted in multivariable models for measured confounders. Pre-defined sub-group analyses were performed for the primary outcome. A total of 96,454 patients from 114 countries were included and overall, 26,948 (27.9%) patients isolated before surgery. Postoperative pulmonary complications were recorded in 1947 (2.0%) patients of which 227 (11.7%) were associated with SARS-CoV-2 infection. Patients who isolated pre-operatively were older, had more respiratory comorbidities and were more commonly from areas of high SARS-CoV-2 incidence and high-income countries. Although the overall rates of postoperative pulmonary complications were similar in those that isolated and those that did not (2.1% vs 2.0%, respectively), isolation was associated with higher rates of postoperative pulmonary complications after adjustment (adjusted OR 1.20, 95%CI 1.05–1.36, p = 0.005). Sensitivity analyses revealed no further differences when patients were categorised by: pre-operative testing; use of COVID-19-free pathways; or community SARS-CoV-2 prevalence. The rate of postoperative pulmonary complications increased with periods of isolation longer than 3 days, with an OR (95%CI) at 4–7 days or ≥ 8 days of 1.25 (1.04–1.48), p = 0.015 and 1.31 (1.11–1.55), p = 0.001, respectively. Isolation before elective surgery might be associated with a small but clinically important increased risk of postoperative pulmonary complications. Longer periods of isolation showed no reduction in the risk of postoperative pulmonary complications. These findings have significant implications for global provision of elective surgical care. We aimed to determine the impact of pre-operative isolation on postoperative pulmonary complications after elective surgery during the global SARS-CoV-2 pandemic. We performed an international prospective cohort study including patients undergoing elective surgery in October 2020. Isolation was defined as the period before surgery during which patients did not leave their house or receive visitors from outside their household. The primary outcome was postoperative pulmonary complications, adjusted in multivariable models for measured confounders. Pre-defined sub-group analyses were performed for the primary outcome. A total of 96,454 patients from 114 countries were included and overall, 26,948 (27.9%) patients isolated before surgery. Postoperative pulmonary complications were recorded in 1947 (2.0%) patients of which 227 (11.7%) were associated with SARS-CoV-2 infection. Patients who isolated pre-operatively were older, had more respiratory comorbidities and were more commonly from areas of high SARS-CoV-2 incidence and high-income countries. Although the overall rates of postoperative pulmonary complications were similar in those that isolated and those that did not (2.1% vs 2.0%, respectively), isolation was associated with higher rates of postoperative pulmonary complications after adjustment (adjusted OR 1.20, 95%CI 1.05–1.36, p = 0.005). Sensitivity analyses revealed no further differences when patients were categorised by: pre-operative testing; use of COVID-19-free pathways; or community SARS-CoV-2 prevalence. The rate of postoperative pulmonary complications increased with periods of isolation longer than 3 days, with an OR (95%CI) at 4–7 days or ≥ 8 days of 1.25 (1.04–1.48), p = 0.015 and 1.31 (1.11–1.55), p = 0.001, respectively. Isolation before elective surgery might be associated with a small but clinically important increased risk of postoperative pulmonary complications. Longer periods of isolation showed no reduction in the risk of postoperative pulmonary complications. These findings have significant implications for global provision of elective surgical care