Julcemar Dias Kessler

Occurrence of gastrointestinal parasites in goats from the Western Santa Catarina, Brazil

This study aims to investigate the occurrence of gastrointestinal parasites in goats from the Western Santa Catarina, Brazil. Twenty four farms were analyzed in 17 different municipalities. Animals (n=217) from different production purposes (milk and meat) and age were randomly chosen. Fecal samples were collected from the rectum stored in plastic bottles and transported to the laboratory in portable coolers at 10 °C. The technique of centrifugal flotation with saturated sugar solution was carried out in order to investigate the presence of eggs, cysts, and oocysts of gastrointestinal parasites. In 88.9% of the investigated animals, it was observed that the presence of nematode eggs which belongs to the Strongylida order, after cultivation and larvae identification were identified as Haemonchus spp., Trichostrongylus spp., Teladorsagia spp., Cooperia spp., and Oesophagostomum spp. Eggs of Thysanosoma, Trichuris, Moniezia, and Neoascaris genus were also observed. Additionally, the presence of oocysts of Eimeria spp. and Cryptosporidium spp. as well as cysts of Giardia spp., and Entamoeba spp. were verified. In all the farms evaluated, the animals showed a single or mixed infection, with the highest occurrence of helminths belonging to the Haemonchus and Trichostrongylus genus, as well as the protozoan Eimeria.

Análise qualitativa de compostos voláteis do headspace de carne cozida de ovinos e caprinos

Este estudo teve como objetivo caracterizar qualitativamente os compostos volateis (CV) do headspace de diferentes musculos de carne cozida de ovinos e caprinos da regiao do Alto Camaqua, Rio Grande do Sul - Brasil. Os CV do headspace dos musculos cozidos, L. dorsi e V. lateralis de cinco ovinos machos (idade de 6 meses) e cinco cabritos machos castrados (idade de 8-9 meses) foram analisados pela tecnica de microextracao em fase solida (HS-SPME) e cromatografo a gas acoplado a espectrometro de massas (GC/MS). Foram encontrados 73 compostos volateis, dentre eles aldeidos, cetonas e compostos sulfurados, caracteristicos de carne processada termicamente. A partir da fracao volatil, foi possivel encontrar marcadores que discriminassem as especies animais estudadas, caracterizando os caprinos por apresentarem, entre outros compostos, terpenos (β-pineno, α-gurjuneno, α-muuroleno), ausentes em ovinos. Alguns compostos discriminaram V. lateralis e L. dorsi de ovinos, como alcool isopropilico, α-pineno, o-xileno, porem nao foi possivel obter uma diferenciacao entre os musculos de caprinos.