ABSTRACT
In view of the importance of the genetic material of local breeds in the swine industry and the lack of information about reproductive performance of Piau females, two experiments were conducted to evaluate puberty and sexual maturity as well as the morphometry of embryos/fetuses, placenta and uterus during the first 90 days of gestation in Piau breed and Commercial line gilts. In experiment I, 37 Piau and 25 commercial line gilts were used. From the 120 days of age, detection of estrus was performed using mature boars from the first to third estrus of each gilt. Data regarding to age, body weight and estrus duration were recorded. After third estrus, females were slaughtered and ovaries were collected to determine ovulation rate. In experiment II, 36 Piau and 18 commercial line gilts were distributed into three groups according to the mating: Commercial, commercial line females x commercial line male; cross-mated, Piau females x commercial line male; and Piau, Piau females x Piau male. Gilts were slaughtered at 7, 15, 30, 45, 60 and 90 days of pregnancy. Piau females reached puberty and sexual maturity at the same age as commercial line females, but with lower weight; moreover, Piau group showed negative correlations of birth weight with puberty (-0.27) and sexual maturity (-0.29). Commercial gilts presented higher ovulation rate, weight and length of uterus, and length and thoracic circumference of fetuses. Nevertheless, number of fetuses was similar in all groups at 90 days of gestation suggesting that Piau females present higher survival rates of the conceptuses. The results showed differences between the genetic groups related to fetal and placental development, gestational losses, number of ovulations and uterine development. In addition, an intermediate status of fetal weight was observed in Piau/Commercial line crossbred conceptuses; thus, the selection of Piau females on reproductive traits to be mated with commercial line males would be an alternative to contribute to improvement of intramuscular fat content.
Subject(s)
Fetal Development/physiology , Placenta/physiology , Sexual Maturation/physiology , Swine/physiology , Uterus/growth & development , Animals , Female , Male , Pregnancy , Swine/embryologyABSTRACT
As estrias que são uma atrofia de pele adquirida devido ao rompimento de fibras elásticas e colágenas. Um dos métodos de tratamento para as estrias é a galvanopuntura. Seus efeitos estão relacionados ao estímulo elétrico, baseado na compilação dos efeitos intrínsecos da corrente contínua (galvânica) que promovem uma inflamação aguda localizada, extremamente eficiente na regeneração do tecido conjuntivo rompido. Este estudo utilizou a corrente galvânica associada a uma máquina de tatuar (protótipo). Foram aplicadas sete sessões, em uma paciente, uma vez por semana, tratando três estrias, uma com galvanopuntura tradicional e as outras duas com a máquina de tatuar associada ou não a corrente. A avaliação foi realizada por meio de ficha de avaliação e biópsias antes e após as sete sessões. O objetivo foi verificar os efeitos da aplicação da corrente galvânica associada a um aparelho de tatuagem na obtenção de uma resposta inflamatória. Concluiu-se que a maior eficácia desse tratamento foi utilizando a corrente galvânica, porém, associada com a máquina de tatuar, os resultados foram superiores, obtendo maior tempo inflamatório, menor tempo para efetuar a aplicação e, sobretudo, promovendo menor dor e desconforto à paciente. Acreditamos que este protótipo seja útil na prática clínica da fisioterapia dermato-funcional.
The striae are skin atrophy due to the disruption of elastic and collagen fibers. One treatment method for the striae is the galvanopuncture. Its effect is related to electrical stimulation, that promote an acute located inflammation, without any systemic effect, but extremely efficient in the regeneration of broken tissue. This study used the galvanic current associated with a tattoo machine (prototype). It is a study with one patient, applying seven sessions once a week, treating 3 striae with a traditional galvanopuncture and other 2 striae with the tattoo machine associated or not to electric current. The evaluation was conducted through an evaluation form and biopsies before and after the seven sessions. The objective was to verify the effects of the application of galvanic current equipment associated with tattoo machine on achieving an inflammatory response. It was concluded that such treatment was more effective using the galvanic current, but with the tattoo machine associated, the results were better, gaining more inflammatory time, less time to the application and, above all, promoting minor pain and discomfort to the patient. We concluded that this prototype could be useful in clinical practice of physical therapy dermato-functional.
