Clínica de animais de companhia e de grande porte

O presente relatório descreve as atividades desenvolvidas no âmbito do estágio curricular que decorreu no Hospital Veterinário de Leiria, com a duração de seis meses e sob a orientação do Dr Ricardo Alves. Este encontra-se dividido em duas partes, referindo-se a primeira à casuística acompanhada ao longo do estágio, em que a área com maior representatividade é a clínica médica e a segunda parte consiste numa revisão bibliográfica referente ao tema “ Demodicose canina”. Finalmente segue-se a apresentação de casos clínicos acompanhados no âmbito do tema referido. A demodicose é uma patologia dermatológica causada pela proliferação anormal do ácaro Demodex spp nos folículos pilosos associada a uma desregulação do sistema imunitário. Esta patologia pode manifestar-se de forma localizada ou generalizada e ocorrer tanto em jovens como adultos, sendo mais frequente nos jovens e nos adultos é geralmente associada á existência simultânea de doença imunossupressora; Abstract: Clinic of company animal and large animals This report describes the internship that took place at the Hospital Veterinário de Leiria for a period of six months, under the guidance of Dr. Ricardo Alves. This report is divided in two sections, the first one refers to the followed clinical cases during the practice internship,in which the most representative area is the medical clinic, and the second part consist of a literature review on the “Canine Demodicosis”, finally followed by presentation of clinical cases followed under that theme. The demodicosis is a skin disease caused by the abnormal proliferation of Demodex spp mite in hair follicles associated with a dysregulation of the immune system. This disorder can manifest it self in localized or generalized forms and occurs in both young and adults, being more frequent in young pets and adults is usually associated simultaneous with other forms of immunosuppressive disease

Thermoregulatory response in hair sheep and shorn wool sheep

This study’s main goal was to evaluate the thermoregulatory responses velocity through the variation of rectal temperature (RT), related to the thermolytic pathways, respiratory rate (RR) and sweating rate (SR) among different sheep breeds. Ninety female sheep, eighteen of each breed: Santa Ines and Morada Nova (Brazilian hair breeds), Texel, Suffolk and Ile de France (wool breeds) were challenged during three non-consecutive summer days (22◦42′S, 47◦18′W, and 570m of altitude, maximum air temperature of 33.5◦C, average relative humidity of 52±6.9%). The physiological variables were registered at 0800h (T1), 1300 h (T2: after 2 h of shade rest), 1400 h (T3) (after one hour of sun exposure) and in the shade at 1415 h (T4), 1430 h (T5), 1445 h (T6) and 1500 h (T7) and a thermotolerance index (TCI) was calculated as (10-(T7 to T4)-T1). The statistical analysis was performed by a mathematical model including the fixed effects of breeds and time frames, and the interaction between these effects, besides random effects such as animal and day. The Santa Ines breed presented the lowest RT after sun exposure (39.3 ± 0.12 ◦ C; P < 0.05) and it was the only one to recover morning RT 60 min after heat stress (38.7 and 38.9 for 1300 h and 1500 h; P > 0.05). Hair breeds presented RR lower (P < 0.05) than wool breeds. Although thick wool or hair thickness differs among and within hair and wool breeds (P < 0.05), SR did not differ among breeds and time (227.7 ± 16.44 g m−2 h−1 ; P > 0.05). The thermotolerance index did not differ among breeds, but it showed similar response (P > 0.05) 45 min or 1 h of shade after sun exposure. One week post shearing is not enough to wool breeds present to show thermotolerance similar to hair breeds.