As leishmanioses são zoonoses de grande importância, consequentes do parasitismo por protozoários intracelulares do gênero Leishmania, da família dos Trypanosomatidae. Transmitidas através da picada de insetos dípteros hematófagos pertencentes à subfamília Phlebotominae, tendo o cão como principal reservatório urbano. Duas formas clínicas são conhecidas: a leishmaniose visceral caracterizada por alterações sistêmicas e por vezes cutâneas, e a tegumentar, que podem produzir manifestações com lesões mucocutâneas, formação de úlceras de fundo granulomatoso e bordas salientes de difícil cicatrização. O objetivo deste trabalho foi relatar um caso de um canino, sem raça definida, macho, de 10 anos de idade, que foi atendido com histórico de ulceração em focinho, pavilhão auricular e língua, com manifestações clínicas agravando desde 2009. A realização do exame histopatológico foi determinante para a visualização de formas amastigotas de Leishmania spp, sendo possível o diagnóstico de leishmaniose.

Tilapia comprises one of the most cultivated fish species worldwide, mainly commercialized in the form of fillets. As a result, the amount of waste generated by processing is high, with tilapia skin being commonly discarded and not used as food for human consumption. In this context, the aim of this study was to dry residual filleted tilapia skins in a solar dehydrator and perform physical-chemical analyses after drying in order to evaluate the potential for the development of byproducts. The skins were collected at a fish market on Mercado do Peixe in Teresina - PI. Treatments consisted of four sodium chloride concentrations (0.0%; 25.0%; 50.0% and 100.0%), with five replications, totaling 25 samples. The skins were dried in the solar dehydrator for 24 hours, followed by moisture, ash, protein, lipids, pH and water activity analyses. Moisture in the in naturaskins was 57.7%, differing significantly from the dehydrated tilapia skins, which ranged from 9.4% to 10.6%. The ash in the in natura skins was 0.17%, while dehydrated tilapia skins displayed variations from 1.19% to 4.17%. The crude protein found of the in natura skins was 41.4%, significantly different (P <0.05) from the skins submitted to the solar dehydration method. Based on these findings, the use of solar dehydrator for short periods is confirmed to favor the uniform dehydration of residual tilapia skin from filleting, generating a product with satisfactory bromatological patterns for the development of fish-based by-products.

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