Browsing PA-Artigos by Issue Date
Now showing items 1-20 of 81
-
Seasonal variation of glutathione peroxidase, CK and AST in sheep in a low-selenium region
(Polska Akademia Nauk, 1997)Blood glutathione peroxidase (GSH-Px; E.C. 1.11.1.9) activity, a measure of selenium status, as well as the plasma indicators of muscle damage creatine kinase (CK; E.C. 2.7.3.2) and aspartate aminotransferase (AST; E.C. ... -
Influencia del estatus de cobre sobre la acumulación de metales tóxicos y esenciales en ganado vacuno
(Asociación Española de Toxicología, 2005)La interacción entre elementos tóxicos y esenciales, así como de elementos esenciales entre sí, condiciona tanto la acumulación de estos elementos en el organismo como sus efectos nocivos. En este estudio se evaluaron ... -
Duración del período gestacional en la raza rubia gallega
(2006)Se realizó un estudio sobre la duración de la gestación en la raza bovina Rubia Gallega explotada en sistemas de producción tradicional en la provincia de Lugo. Así mismo se valoraron distintos factores que pueden afectar, ... -
Relationship among blood indicators of lipomobilization and hepatic function during early lactation in high-yielding dairy cows
(Korean Society of Veterinary Science, 2011)Blood indicators are used as a tool to diagnose metabolic disorders. The present work was conducted to study the relationships among blood indicators of lipomobilization and hepatic function in high-yielding dairy cows. ... -
Perfiles metabólicos en preparto, parto y postparto en vacas de raza rubia gallega: estudio preliminar
(2011)Con el objetivo de establecer, en un futuro, unos valores de referencia de diferentes parámetros bioquímicos en vacas de raza Rubia Gallega, se extrajeron muestras de sangre mensuales (desde 30 días antes del parto hasta ... -
Serum metabolite concentrations and enzyme activities in finishing bull calves fed different types of high-grain diets
(Copernicus Publications, 2011)Between the ages of 23 and 35 weeks, various serum metabolites and enzymes were monitored in three 10-animal groups of double-muscled Belgian Blue bull calves maintained in a feedlot in Galicia (NW Spain) on high-grain ... -
Factors associated with 56-day non-return rate in dairy cattle
(Embrapa Informação Tecnológica, 2011)The objective of this work was to identify factors associated with the 56-day non-return rate (56-NRR) in dairy herds in the Galician region, Spain, and to estimate it for individual Holstein bulls. The experiment was ... -
Influence of grain processing in regard to serum metabolites and enzymes for finishing bull calves
(Polska Akademia Nauk, 2011)This study compared two grain processing methods that are widely used for beef cattle, grinding and steam pelleting, with respect to serum metabolic parameters: glucose, non-esterified fatty acids (NEFA), serum urea nitrogen ... -
Validation of a simple method for the interpretation of uterine cytology in cows
(Czech Academy of Agricultural Sciences, 2012)One of the main drawbacks of using endometrial cytology in cows is the time required for sample collection and interpretation. It is recommended to count a large number of polymorphonuclear neutrophils (PMN) and to ... -
Histochemistry evaluation of the oxidative stress and the antioxidant status in Cu-supplemented cattle
(Elsevier, 2012)The aim of this paper is to evaluate at a histopathological level the effect of the most commonly used copper (Cu) supplementation (15 mg/kg dry matter (DM)) in the liver of intensively reared beef cattle. This was done ... -
Evaluation of organic, conventional and intensive beef farm systems: health, management and animal production
(Elsevier, 2012)The overall aim of the present study was to analyse and compare organic beef cattle farming in Spain with intensive and conventional systems. An on-farm study comparing farm management practices and animal health was carried ... -
Quantifying bovine insulin: conversion of units
(Veterinary Clinical Pathology, 2012-09) -
Mixed Production of Filamentous Fungal Spores for Preventing Soil-Transmitted Helminth Zoonoses: A Preliminary Analysis
(Hindawi, 2013)Helminth zoonoses are parasitic infections shared by humans and animals, being the soil-transmitted helminths (STHs) mainly caused by roundworms (ascarids) and hookworms. This study was aimed to assess the individual and/or ... -
The use of crossbreeding with beef bulls in dairy herds: effects on calving difficulty and gestation length
(Elsevier, 2013)This study was designed to analyse the evolution in the use of beef bull semen for dairy cattle insemination and, mainly, to assess calving difficulty, gestation length and proportion of stillbirths after breeding pure ... -
Oxidative stress index (OSi) as a new tool to assess redox status in dairy cattle during the transition period
(Cambridge University Press, 2013-03-19)Oxidative stress (OS) plays a key role in the initiation or progression of numerous diseases, and dairy cows undergo OS at the transition period. However, discrepancies between methodologies make it difficult to make ... -
Effect of colostrum redox balance on the oxidative status of calves during the first 3 months of life and the relationship with passive immune acquisition
(The Veterinary Journal, 2013-10-29)New-born calves depend upon colostrum intake for the acquisition of immunoglobulins (Ig) and other beneficial substances. However, colostrum is also a source of reactive oxygen species (ROS). Intrinsic production of ROS ... -
Prevalence of canine heartworm (Dirofilaria immitis) disease in dogs of central Portugal
(EDP Sciences, 2014)The aim of the present study was to determine the prevalence and risk factors concerning Dirofilaria immitis infection in dogs from Figueira da Foz, located in the central region of Portugal. In the period between ... -
Use of endometrial cytology and metabolic profiles for selection of embryo donor cows
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2014)The aim of this study was to evaluate the use of endometrial cytology and metabolic profiles for selection of donor cows in embryo transfer programmes. For this purpose, 69 clinically healthy Holstein cows were enrolled ... -
Trace Element Distribution in Selected Edible Tissues of Zebu (Bos indicus) Cattle Slaughtered at Jimma, SW Ethiopia
(PLOS, 2014)The amount of trace elements present in edible bovine tissues is of importance for both animal health and human nutrition. This study presents data on trace element concentrations in semitendinosus and cardiac muscles, ... -
The use of seaweed from the Galician coast as a mineral supplement in organic dairy cattle
(Elsevier, 2014)This study was designed to assess the value of seaweeds from the Galician coast as a source of minerals (especially iodine (I) but also other micro-minerals) in organic dairy cattle. It was conducted in an organic dairy ...