Q-fever is a vector-borne (Coxiella [C.] burnetii) zoonotic disease that is an increasing public health concern. To date, some research about Q-fever prevalence in dairy herds and human patients has been reported in Korea, but information about Korean native cattle is scarce. To measure the prevalence rates of C. burnetii in Korean native cattle, a total of 1,095 bovine serum samples collected during 2010~2013 were analyzed with an enzyme-linked immunosorbent assay. Sixty-eight heads of cattle were diagnosed as positive and while 19 heads were suspected (positive rate = 6.2%). Interestingly, Jeju province had a seropositivity rate six times greater than that of other provinces (18.9% vs. 3.2%). High seroprevalence might be caused by wide distribution of ticks in Jeju province compared to other regions. Based on these data, extensive monitoring of C. burnetii infection in cattle, tick distribution, and climate changes is required.

Este estudo teve como objetivo avaliar a inclusão de farelo de girassol e a suplementação de complexo enzimático sobre os parâmetros de desempenho e características de carcaça de suínos, dos 30 aos 100 kg de peso vivo. Foram utilizados 96 suínos com peso vivo médio de 32,19±3,27 kg, distribuídos em um delineamento experimental de blocos casualizados, em esquema fatorial 4 x 2 (quatro níveis de farelo de girassol-FG: 0, 8, 16 e 24% com ou sem inclusão do complexo enzimático-CE), com seis repetições e dois animais por unidade experimental. As variáveis analisadas foram o consumo de ração (kg), o ganho de peso (kg), a conversão alimentar (kg/ kg), a espessura de toucinho (mm), a musculosidade (kg), o peso da carcaça quente (%), a porcentagem de carne magra na carcaça (%), a quantidade de carne magra na carcaça (kg). Não houve nenhuma interação entre os fatores para nenhuma das variáveis estudadas. A conversão alimentar dos animais dos 30 aos 70 kg de peso foi diminuída pela inclusão do CE, porém não afetou os parâmetros de carcaça. Níveis crescentes de FG na ração apresentaram efeito quadrático sobre o ganho de peso dos animais e sobre a espessura de toucinho, com valores máximos dessas variáveis em 7,26% e 8,16% de inclusão do FG, respectivamente. | Aiming to evaluate the performance of pigs from 30 to 100 kg of live a total of 96 pigs with average live weight of 32.19±3.27 kg were distributed in randomized blocks design in a 4 × 2 (four levels of SM: 0, 8, 16 and 24%; with or without inclusion of EC)  factorial arrangement with six replicates and two animals per experimental unit. The parameters analyzed were feed intake (kg), weight gain (kg), feed conversion (kg/kg), backfat thickness (mm), carcass muscularity (kg), hot carcass weight (%), percentage of lean meat in the carcass (%), and quantity of lean meat in the carcass (kg). There was no interaction between EC and SM levels in the diet. The addition of EC in the diet affected the performance of the animals, but not carcass characteristics. Feed conversion of animals from 30 to 70 kg weight was improved by the inclusion of EC. The increasing levels of SM in the diet presented quadratic effect on weight gain and on backfat thickness, with inclusion points of SM that promoted maximum values of these parameters of 7.26% and 8.16%, respectively.