Morphology and biometric of the vesicular and bulbourethralglands in castrated and non-castratedSanta Inesbreed sheep

Introduction: The purpose of this paper is to determine the topography, biometry and light microscopyimage of the vesicular and bulbourethral glands in order to analyze morphologic features of the accessorysexual glands in castrated and non-castrated animals.Materials and Methods:The morphology of theaccessory sexual glands was investigated in 14 adult Santa Inesbreed sheep, weighing 32 kg, on average.Six of them were castrated, and eight, non-castrated. For macroscopic study, the description of these twoglands was carried out, as well as dissection and biometry study. Moreover, weight, length, height andwidth measurements were evaluated. For histological analysis, the vesicular and bulbourethral glands weresampled.Results:The topography of the reproductive glands was similar to bovine species. However, lowermacroscopic measurements (p < 0,05) in the glands of the castrated sheep were evidenced when comparedwith the non-castrated ones. Characteristics such as shape of the glands, composition of the layer mucosa,the lamina propria, muscular, the excretory ducts and the adventitia were determined.Conclusion:Sheepcastration promoted changes in the biometric measures of the glands, which were lower in castrated animals.The morphological and biometric characteristics of the vesicular and bulbourethral glands in sheep weredetermined.

Cancers de la prostate metastases : traitement

Le traitement des cancers de la prostate metastases est avant tout palliatif: traitement symptomatique des douleurs osseuses; des obstructuctions des voies urinaires; des hematuries

Composição tecidual e qualidade da gordura na carne de cordeiros castrados e não castrados confinados sob dois fotoperíodos / Tissue composition and fat quality of meat of intact or castrated male lambs confined under two photoperiods

Avaliaram-se os efeitos do fotoperíodo e da castração sobre a composição dos tecidos da paleta e características de qualidade da gordura do lombo e da paleta, de 20 cordeiros mestiços Ideal, distribuídos em esquema fatorial 2 x 2 (dois fotoperíodos - curto (FC), com 12 horas de luz, e longo (FL), com 18 horas de luz, e duas condições sexuais - não castrados (NC) e castrados (C)), com cinco repetições. Os animais foram abatidos aos 37kg de peso corporal. Maior quantidade de gordura total ocorreu nos cordeiros C e mais tecido conjuntivo nos animais NC. A castração influenciou o resíduo mineral fixo (RMF), o extrato etéreo (EE) e a proteína da gordura subcutânea. O efeito da interação entre fotoperíodo longo e castração resultou em aumento do teor de umidade na gordura intermuscular da paleta. A castração elevou o teor de EE e diminuiu o percentual de RMF. Não foi evidenciado efeito do fotoperíodo no EE dos músculos da paleta, e os animais castrados apresentaram gordura intramuscular mais elevada. Os níveis de colesterol da paleta foram mais elevados que os do lombo. Na carne de animais C, verificou-se maior quantidade de ácidos graxos saturados.

The effects of photoperiod and castration on tissue muscle composition, fat physical-chemical composition, and cholesterol was determined for two muscles of 20 Ideal crossbred lambs. The animals were divided into four treatments: five intact males and five castrate during a short photoperiod of 12 light hours, and five intact males and five castrated during a long photoperiod of 18 light hours. The animals were allocated in individual pens, in two identical rooms, with light intensity of 300 lux, (intact and castrated animals x short and long photoperiod). The animals were slaughtered as they reached 37kg of body weight. Castrated lambs showed a significantly higher amount of total fat tissues while intact animals showed higher connective tissue for the shoulder tissue composition. Effect of castration on ash, lipid, and protein was observed in the subcutaneous fat tissue. Interaction effect between LF and castration promoted in shoulder fat intermuscular tissue increase of moisture content while the castration increased the lipid content and decreased the ash. Castrated animals presented higher intramuscular fat. Castrated lambs showed cholesterol contents in shoulder muscles larger than in the Longissimus lumborum muscle. The castration promoted larger amount of saturated fatty acids.

Efecto de la castración precoz sobre el desarrollo de la glândula submandibular de la rata macho / Effect of early castration on the development of submandibular gland of male rats

Se estudió el efecto que la castración precoz provoca sobre el desarrollo de la glándula submandibular. Se estudiaron los mucopolisacáridos ácidos y neutros, el ARN y las enzimas oxidorreductoras, se efectuó un estudio cariométrico de las células de los conductos granulares. Se comprobó que la castración efectuada a los 21 días del desarrollo no impide la diferenciación de los conductos granulares de la glándula de la rata macho, aunque estos presentan un aspecto similar a los de las hembras. No encontramos alteraciones con respecto a los mucopolisacáridos y el ARN; las enzimas oxidorreductoras aparecen con una disposición similar a la observada en las ratas hembras. Se detectaron diferencias cariovolumétricas en las células de los conductos granulares entre castrados y controles