Oral fibroepithelial polyps ("chewing granulomas") in 21 dogs: Histomorphology, immunohistochemical characterization, and clinical outcome.

Oral fibroepithelial polyps (FEPs) are common, benign, nonneoplastic lesions in humans that often develop slowly in sites of local irritation or trauma. This study analyzed 23 oral fibroepithelial polypoid lesions retrieved from 21 dogs (2014-2021). All lesions were pedunculated with usually an irregular/cauliflower-like or rarely smooth surface. FEPs most commonly arose under or lateral to the tongue; other sites included the labial and gingival mucosa, soft palate, and hard palate. All the lesions were characterized by a thick fibrovascular stalk consisting of bundles of fibrocytes and fibroblasts embedded in a collagenous matrix rich in blood vessels. The surface squamous epithelium, when evaluable, was hyperplastic (22/22; 100%) with frequent parakeratotic hyperkeratosis (12/22; 54.5%). Ulceration of variable extent was observed in 13/23 cases (56.5%). Inflammation was associated with 18/23 cases (78.3%), and was mostly lymphoplasmacytic. The connective tissue was consistently immunoreactive for vimentin and generally negative for smooth muscle actin and desmin. All FEPs in cases with available clinical outcome data did not recur after surgical excision. The presence of chronic inflammation and ulceration suggests a causative role of chronic irritation in the pathogenesis of canine oral FEPs. FEPs should be included among the differential diagnoses of proliferative lesions of the oral cavity in dogs.

Suplementação com farelo de girassol para ovinos alimentados com silagem de bagaço de sorgo sacarino / Sunflower meal supplementation to wethers fed sorghum bagasse silage

Seis ovinos Texel × Corriedale (43,6±4,4kg de peso corporal (PC)), alimentados ad libitum com silagem de bagaço de sorgo sacarino (Sorghum bicolor (L.) Moench ssp. saccharatum), foram usados em um experimento em duplo Quadrado Latino 3×3 para avaliar o efeito nutricional da suplementação com níveis de farelo de girassol (0, 7 ou 14g kg-1 de PC). Uma solução (8%, p/v) de ureia e sulfato de amônio (9:1, respectivamente) foi misturada à silagem no momento do fornecimento aos animais, em todos os tratamentos, numa proporção de 50ml de solução kg-1 de silagem. O consumo total de matéria seca (MS), matéria orgânica (MO), fibra em detergente neutro (FDN) e de carboidratos não fibrosos (CNF), assim como o consumo de MS da silagem e de MO digestível, foram positivamente afetados (P<0,05) pelo aumento da suplementação com farelo de girassol. A digestibilidade da FDN não foi afetada pelos tratamentos, enquanto que a digestibilidade aparente da MS e da MO foi linearmente (P<0,05) incrementada pela suplementação. A eficiência de síntese proteica microbiana ruminal não foi influenciada pelos tratamentos, enquanto que o consumo, a digestibilidade, a excreção urinária e a retenção de N, assim como a síntese de proteína microbiana ruminal, foram linearmente e positivamente afetados pela suplementação (P<0,05). Em conclusão, a suplementação com farelo de girassol impacta positivamente a utilização da silagem de bagaço de sorgo sacarino e a oferta de nutrientes para ovinos.

Six Texel × Polwarth (43.6±4.4kg of body weight (BW)) wethers fed ad libitum sorghum bagasse silage (Sorghum bicolor (L.) Moench ssp. saccharatum) were used in a replicated 3×3 Latin Square experiment to evaluate the nutritional effect of supplementing levels of sunflower meal (0, 7 or 14g kg-1 de BW). In all treatments the urea plus ammonium sulphate (9:1, respectively) solution (8%, p/v) was mixed to silage at feeding at a rate of 50ml k-1g of silage. Total dry matter (DM), organic matter (OM) neutral detergent fibre (NDF) and non-fibre carbohydrates (NFC) intake, as well as DM intake from silage and digestible OM intake were positively affected (P<0.05) by increased levels of sunflower meal supplementation. The NDF digestibility was not affected by treatments whereas the apparent DM and OM digestibility were linearly increased (P<0.05) due supplementation. The efficiency of ruminal microbial protein synthesis was not affected by treatments whereas N intake, digestibility, urinary excretion and retention as well as rumen microbial protein synthesis increased linearly (P<0.05) at increased levels of supplementation. In conclusion, sunflower meal supplementation positively impacts sorghum silage utilization and nutrients supply to wethers.

Imaging diagnosis--pulmonary interstitial emphysema in a dog.

In humans, pulmonary interstitial emphysema is most frequently seen in ventilated preterm newborns with severe lung disease; it is less frequently reported in adults. We report on a mature dog with pneumopathy that underwent computed tomography (CT) imaging to further characterize the lung disease. A bronchiolar pattern and lobar opacification were seen on the CT images. Moreover, gas was detected along the course of the pulmonary vessels, presumably in the interstitium, as seen in pulmonary interstitial emphysema in humans. Sever lung disease and/or hyperventilation during anesthesia could be a possible explanation of pulmonary interstitial emphysema in this dog.