Hemogasometria arterial pré e pós-rinoplastia em cães braquicefálicos portadores de estenose de narina / Arterial hemogasometry pre and post rhinoplasty in brachyphalic dogs with nostril stenosis

Vinte e seis cães braquicefálicos portadores de estenose de narina, 22 machos e quatro fêmeas, foram submetidos à rinoplastia bilateral. Dezesseis cães eram Buldogues Franceses; dois, Buldogues Ingleses; seis, Pugs; e dois, Shih Tzus, com idade variando de seis meses a seis anos. Foram efetuadas coletas de sangue arterial para análises hemogasométricas no pré-operatório e 30 dias após a cirurgia. Para cada avaliação, foi obtida uma amostra de 0,5mL de sangue coletado da artéria femoral, em seringa plástica heparinizada. Em seguida, procedeu-se à avaliação hemogasométrica em analisador de gases sanguíneos (I-stat-Abbot®). Os resultados da hemogasometria pré e pós-rinoplastia mostraram uma redução nos valores médios de pCO2, TCO2 , HCO3- e BEecf, hematócrito e hemoglobina, e aumento de pH, pO2 e SO2, indicando melhora na condição ventilatória dos animais após a correção cirúrgica da estenose de narina. Isso posto, conclui-se que a hemogasometria arterial é um exame importante no diagnóstico da síndrome respiratória dos cães braquicefálicos, e extremamente útil no acompanhamento da resposta do paciente ao tratamento. A rinoplastia mostrou-se eficaz no tratamento da síndrome respiratória, promovendo melhora nos parâmetros hemogasométricos que indicam acidose respiratória secundária à obstrução das vias aéreas, comum nas raças braquicefálicas.(AU)

Twenty-six brachycephalic dogs with nostril stenosis, 22 males and four females, underwent bilateral rhinoplasty. Sixteen dogs were French Bulldogs; two, English Bulldogs; Six, Pugs; and two, Shih tzus, ranging in age from six months to six years. Blood samples were collected for hemogasometric analysis in the preoperative period and 30 days after surgery. For each evaluation, a 0.5ml sample of blood collected from the femoral artery was obtained in a heparinized plastic syringe. Hemogasometric evaluation was then performed on a blood gas analyzer (I-stat-Abbot®). The results of hemogasometry before and after rhinoplasty showed a reduction in the mean values of pCO2, TCO2, HCO3- and BEecf, hematocrit and hemoglobin, and an increase in pH, pO2 and SO2, indicating an improvement in the ventilatory condition of the animals after surgical correction of Nostril stenosis. Therefore, it is concluded that arterial hemogasometry is an important diagnostic tool for the diagnosis of brachycephalic respiratory syndrome and is extremely useful in monitoring the patient's response to treatment. Rhinoplasty was effective in the treatment of respiratory syndrome, promoting improvement in hemogasometric parameters that indicate respiratory acidosis secondary to airway obstruction, common in the brachycephalic races.(AU)

Effect of the inoculation level of Lactobacillus acidophilus in probiotic cheese on the physicochemical features and sensory performance compared with commercial cheeses.

The complex metabolism of probiotic bacteria requires several technological options to guarantee the functionally of probiotic dairy foods during the shelf life. This research aimed to evaluate the effect of the supplementation of increasing amounts of Lactobacillus acidophilus (0, 0.4, or 0.8 g/L of milk) on the physicochemical parameters and sensory acceptance of Minas fresh cheese. In addition, the sensory acceptance of probiotic cheeses was assessed using a consumer test and compared with commercial cheeses (conventional and probiotic). High counts (9.11 to 9.42 log cfu/g) of L. acidophilus were observed throughout the shelf life, which contributed to the maintenance of its probiotic status and resulted in lower pH values and greater production of organic acids. The probiotic cheeses presented lower scores for appearance, aroma, and texture compared with conventional cheeses. Internal preference mapping explained almost 60% of the total variation of the data and showed a large number of consumers concentrated near the conventional cheeses, demonstrating greater preference for these samples. The findings indicated that some negative sensory effects could occur when high level of supplementation with L. acidophilus is used in probiotic cheese processing.