Small ruminant lentivirus (SRLV) is a group of viruses of the Retroviridae family, shared between caprine, ovine and wild ruminants. It is responsible for a systemic infection that can affect the lungs, central nervous system, mammary gland and joints, causing chronic, insidious, and progressive diseases, seriously affecting animal health. Concurrently, it is associated with a decrease in milk production, leadi...
Aneurysm of the pulmonary artery is a rare condition in animals, and to our knowledge it has never been reported in association with pulmonary neoplasia. This report describes a case of an adult female sheep of the “Churra Galega Bragançana” breed with an aneurysm of the pulmonary artery associated with lung cancer (ovine pulmonary adenocarcinoma).
The rapid global spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has made COVID-19 one of the biggest pandemics of all time, with several devastating public health challenges. In this study, we investigated the knowledge towards COVID-19 best practices in the north of Portugal. Methods: A descriptive cross-sectional study was performed with a convenience sample of the population of northe...
Ovine pulmonary adenocarcinoma (OPA), also known as sheep pulmonary adenomatosis and jaagsiekte, is a contagious pulmonary tumor of sheep, characterized by neoplastic proliferation of type II pneumocyte and club cells. OPA is induced by the oncogenic activity of the envelope glycoprotein (Env) of exogenous jaagsiekte sheep retrovirus (JSRV). This disease is associated with significant economic losses in numerou...
Goat milk production is a dynamic industry and a substantial part of farm income to Serrana breeders. Subclinical mastitis is common and one of the most important diseases in dairy goat production with negative impact on animal and human health. Moreover, is responsible for high economic losses. The fight against subclinical mastitis requires the implementation of surveillance and control programs. Several meth...
Acute phase proteins (APPs) may increase in concentration in the absence of macroscopic changes in the milk, or may precede the onset of clinical signs. APPs have been investigated as markers of milk quality and subclinical mastitis in cows and sheep. Milk amyloid A (MAA) is a APPs and a highly specific biomarker for subclinical mastitis identification and one of the first proteins generated in milk following m...
As mastites são responsáveis por perdas económicas extremamente elevadas nos ruminantes leiteiros e, deste ponto de vista, a forma subclínica é a mais preocupante. Assim, o diagnóstico realizado de forma precoce e eficaz torna-se numa das medidas mais importantes no controlo desta doença. A mensuração das proteínas da fase aguda da inflamação (PFA), para deteção de mastites, tem sido alvo de várias pesquisas em...
As particularidades fisiológicas dos caprinos – tipo de secreção apócrina do leite e importância de factores não infecciosos nas contagens de células somáticas – impedem a extrapolação direta dos resultados obtidos em ovinos e em bovinos para o controlo de mastites subclínicas nesta espécie. Neste trabalho procurou-se avaliar, comparativamente, a utilidade da contagem bacteriana por cultura PCA (Plate Count Aga...
As particularidades fisiológicas dos caprinos: secreção essencialmente apócrina e a importância de factores não infecciosos nas contagens de células somáticas (CCS), impedem a extrapolação direta dos resultados obtidos em ovinos e bovinos para o controlo de mastites subclínicas nesta espécie. Com este estudo pretendeu-se avaliar, comparativamente, a utilidade da contagem bacteriana por cultura (PCA), do Teste C...
A mensuração das proteínas da fase aguda da inflamação (PFA), para deteção de mastites, tem sido alvo de vários estudos em bovinos e diversos estudos comprovam um incremento na produção de haptoglobina e Amilóide A (AA) séricas em vacas com mastites clínicas e subclínicas. Apesar da reduzida literatura disponível em pequenos ruminantes, a Amilóide A sérica está indicada como a PFA mais sensível em ovinos. Recen...