Zebu cattle fed high concentrate diets may present inconsistent performance due to the occurrence of metabolic disorders, like acidosis. The isolated use of ionophores and virginiamycin in high grain diets can improve animal performance and reduce the incidence of such disorders, but recent studies suggested that their combination may have an additive effect. Thus, 72 Nellore steers, 389 ± 15 kg initial body weight (BW), were confined and fed for 79 days to evaluate the combination of virginiamycin and salinomycin on performance and carcass traits. Animals were allocated to a randomized complete block design by BW, in a 2 × 2 factorial arrangement of treatments, with two concentrate levels (73 and 91 %) and two virginiamycin levels (0 and 15 mg kg-1), and salinomycin (13 mg kg-1) included in all diets. The interaction was not significant (p > 0.05). Dry matter intake (DMI), average daily gain (ADG), gain-to-feed ratio (G:F), starch consumed, and fecal starch content were higher (p < 0.05) for the 91 % concentrate treatment. These animals also had higher (p < 0.05) hot carcass weight and dressing percentage. Virginiamycin-treated animals showed lower DMI, but ADG and G:F did not differ (p > 0.05) between treatments. Starch consumed and estimated dietary net energy for maintenance (NEm) and gain (NEg) were higher (p < 0.05) for virginiamycin-treated animals, with no substantial effects on carcass traits. The inclusion of virginiamycin in finishing diets containing salinomycin reduced DMI while maintaining ADG and improving NEm and NEg, suggesting an additive effect of virginiamycin and ionophores, but without affecting carcass quality.

FUNDAMENTOS: A hiperidrose é um distúrbio pouco conhecido, caracterizado pela produção excessiva de suor. Manifesta-se sob várias formas, afetando áreas como axilas, mãos, pés e face. Seus sintomas trazem prejuízos para o paciente, desde limitações no trabalho até constrangimento social e transtornos psicológicos. OBJETIVOS: O objetivo deste trabalho é estimar a prevalência de hiperidrose na cidade de Blumenau. MÉTODOS: A pesquisa foi realizada entre 21 de agosto e 1o de setembro de 2006, nos terminais urbanos de Blumenau: SC, entrevistando-se 500 pessoas abordadas de forma aleatória. RESULTADOS: Dentre os entrevistados, 45 deles, que correspondem a 9% do total, preencheram os requisitos mínimos para serem classificados como portadores de hiperidrose. A faixa etária mais acometida foi entre 18 e 30 anos (11,8%). O número de portadores de hiperidrose do sexo masculino foi maior em números tanto absolutos quanto relativos. A característica mais prevalente foi frequência de hiperidrose ao menos uma vez por semana, encontrada em 91,11% dos afetados; a menos prevalente foi cessação de suor durante o sono, presente em 37,77%. CONCLUSÕES: Observa-se que a prevalência de hiperidrose em Blumenau é maior que a encontrada em outras pesquisas semelhantes, não evidenciando raridade na presente amostra.

BACKGROUND: Hyperhidrosis is a little known disorder, characterized by excessive production of sweat. Hyperhidrosis may occur under several circumstances and appears in body parts like armpits, hands, feet, and face, consequently causing problems to the patient like job limitation, social embarrassment, and psychological damage. OBJECTIVES: Using these theoretical views as a starting point, the study aimed to evaluate the prevalence of hyperhidrosis in Blumenau. METHODOLOGY: Utilizing interviews, the research was conducted with 500 subjects randomly approached, in the period ranging from August 21 to September 1st, 2006. RESULTS: 45 respondents (9%) matched the pre-requisites, being classified as hyperhidrosis patients. The age group most affected was from 18 to 30 years (11.8%). Hyperhidrosis was more frequent among men both in absolute (24 men against 21 women) and relative numbers (10.62% of men against 7.66% of women). The most prevalent characteristic was "at least one occurrence per week", in 91.11% of patients; the least prevalent occurrence was "cessation of sweat during sleep", in 37.77% of respondents. CONCLUSIONS: The data show that the prevalence of hyperhidrosis in Blumenau is higher when compared with other studies, thus indicating that it is not a rare phenomenon.