RESUMOObjetivos: Verificar a frequência, as características e os métodos usados para a perda rápida de peso por lutadores de Taekwondo do estado do Rio Grande do Sul. Métodos: Um estudo transversal recrutou atletas que preencheram os seguintes critérios de inclusão: a) ser lutador de Taekwondo, b) graduado em faixa preta e c) competidor no evento em que ocorreu a coleta dos dados. A coleta dos dados foi realizada durante a primeira etapa do Circuito Costa Doce -Seletiva para Seleção Gaúcha, em 2013. Os dados foram coletados com questionário validado sobre perda de peso em lutadores, composto por três seções, preenchido antes da pesagem. Resultados: Dos 23 voluntários, 21 (91,3%) relataram perder peso para competir. A maioria perdeu entre 1 e 3 kg no período anterior à competição, durante três a quatro dias, até duas vezes por ano, através dos seguintes métodos: aumento de atividade física, omissão de refeições e restrição da ingestão hídrica. A maioria dos homens perdeu de 1 a 2 kg e as mulheres entre 1 e 2,5 kg. Os homens recuperaram até 2 kg após a pesagem, enquanto as mulheres chegaram a recuperar até 7 kg. O mestre foi a pessoa que mais os influenciou. Conclusões: Observou-se alta freqência da rápida redução de peso em atletas de Taekwondo. O profissional citado como maior influente na perda de peso foi o mestre. Os métodos mais utilizados foram o aumento de atividade física, diminuição na ingestão de alimentos e restrição hídrica. DESCRITORES: TAE KWON DO; ARTES MARCIAIS; PERDA DE PESO. ABSTRACT Aims:To assess frequency, characteristics and methods used for rapid weight loss by Taekwondo fighters in the state of Rio Grande do Sul Methods: A cross-sectional study recruited athletes who met the following inclusion criteria: a) to be a Taekwondo fighter, b) to have a black belt degree c) being competitor in the event in which data collection occurred. Data collection took place during the first stage of the Costa Doce Circuit -Selective to State Team in 2013. Data were collected using a validated questionnaire on weight loss in wrestlers, consisting of three sections, completed before weighing. Results: Of the 23 volunteers, 21 (91.3%) reported losing weight to compete. Most lost between 1 and 3 kg in the pre-competition period for three to four days, up to twice a year, by the following methods: increasing physical activity, skipping meals and restriction of fluid intake. Most men lost 1-2 kg and women between 1 and 2.5 kg. Men recovered until 2 kg after weighing, while the women came to recover up to 7 kg. The master was the person who most influenced them. Conclusions: We observed a high frequency of fast weight reduction in Taekwondo athletes. Professional cited as most influential in weight loss was the Master. The methods used were increased physical activity, decreased intake of food and fluid restriction.

In tropical countries, it is common to import semen from dairy taurine cattle breeds based on the genetic evaluations carried out in the countries of origin. Therefore, the objective of this study is to verify if the selection of sires based on the DPR (daughter pregnancy rate) estimated in the US genetic evaluation implies on the reduction of the days open of their daughters in Brazil. Data were collected from 325 daughters of 42 Holstein bulls stratified by DPR (DPR < -2, DPR > -2 and < 0, DPR > 0 and < 2, Group DPR > 2). The DPR data was collected from the 2018 US genetic evaluation of Holstein cattle. Each sire had in the database at least 4 daughters of reproductive age, raised in Freestall system and submitted to fixed-time artificial insemination. All the daughters evaluated were from the same farm. To compare the number of days open of each DPR group, a Tukey test with a 0.05 level of significance was performed. The results are shown in Table 1. The results demonstrated the selection of sires based on DPRs estimated in the US genetic evaluation impacts positively Brazilian herds, reducing cows days open.