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2.
Int. j. morphol ; 29(4): 1248-1255, dic. 2011. ilus
Article in English | LILACS | ID: lil-626997

ABSTRACT

The term Podencos refers to a group of dog breeds from Spain and classification in Group 5 of dog breeds by the Fédération Cynologique Internationale (FCI). The aim of this study was to compare traits morphometric breeds of Podencos; Canario, Ibecenco, Andaluz (small, medium and large) and Orito. Ten morphometric variables were measured in 385 animals (245 females and 140 males), head length, muzzle length, height at withers, rump height, body length, head width, rump width, chest depth, chest girth and the shin circumference. Morphostructural variables were more homogeneous in the Podenco Ibicenco and the Podengo Canario, because for many years there were gradually distinctive trait standards for each breed. The discriminate analysis indicated morphostructural differences between all breeds, as reflected in the significant Mahalanobis distance, and confirmed that the hound Orito may be accepted as a different dog population.


El término Podencos se refiere a un grupo de razas de perros originarios de España y clasificados en el grupo 5 de razas caninas por la Federación Cinológica Internacional (FCI). El objetivo del presente trabajo fue comparar caracteristicas morfométricas de las razas caninas de Podencos; Canario, Ibecenco, Andaluz (pequeño, medio y grande) y Orito. Se midieron diez variables morfométricas en 385 animales (245 hembras y 140 machos); longitud de la cabeza, la longitud hocico, altura a la cruz, alzada a la grupa, la longitud del cuerpo, ancho de la cabeza, ancho de la grupa, la profundidad del pecho, la circunferencia del pecho y la circunferencia de la caña. Las variables morfoestructurales fueron más homogéneas en el Podenco Ibicenco y el Podenco Canario, porque por muchos años fueron fijados gradualmente los rasgos distintivos para los estandares de cada raza. El análisis discriminante manifestó diferencias morfoestructurales entre todas las razas, lo que se refleja en la significativa distancia de Mahalanobis, y confirmó que el podenco Orito puede ser aceptado como una población de perros diferentes.


Subject(s)
Animals , Male , Female , Dogs , Dogs/anatomy & histology , Dogs/classification , Discriminant Analysis , Sex Characteristics , Species Specificity
3.
Arq. bras. med. vet. zootec ; 61(1): 57-65, fev. 2009. ilus, graf, tab
Article in English | LILACS | ID: lil-513024

ABSTRACT

The effects of α-tocopherol and ternatin on the morphology, activation, and growth of goat preantral follicles in vitro cultured, for one or five days, were evaluated. Ovarian fragments were immediately fixed (non-cultured control) or in vitro cultured for one or five days in Minimum Essential Medium (MEM) with or without α-tocopherol or ternatin supplementation, both at concentrations of 5, 10, or 15µM, corresponding to the following treatments: MEM, TOC5, TOC10, TOC 15, TER5, TER10, and TER15. The percentages of morphologically normal preantral follicles in non-cultured ovarian tissue (control) was 73.2 percent and after five days of culture, there was a decrease on these percentages in all treatments (P<0.05) when compared with non-cultured control. Culture of ovarian cortex for five days increased the percentages of follicular activation in all treatments (P<0.05). Ultrastructural analysis did not confirm the integrity of caprine preantral follicles cultured for five days in medium containing antioxidants. This study demonstrated that α-tocopherol and ternatin can promote follicular activation; however, addition of these antioxidants in the tested concentrations reduced the follicular viability after in vitro culture.


Os efeitos do α-tocoferol e da ternatina sobre morfologia, ativação e crescimento de folículos pré-antrais caprinos cultivados in vitro, por um ou cinco dias, foram avaliados. Os fragmentos ovarianos foram imediatamente fixados (controle não-cultivado) ou cultivados in vitro, por um ou cinco dias, em Meio Essencial Mínimo (MEM) com ou sem suplementação com α-tocoferol ou ternatina nas concentrações de 5, 10 ou 15µM, formando os tratamentos MEM, TOC5, TOC10, TOC 15, TER5, TER10, TER15. O percentual de folículos pré-antrais normais no controle não-cultivado foi de 73,2 por cento, depois de cinco dias de cultivo, houve redução desse percentual em todos os tratamentos, quando comparados com o controle não-cultivado (P<0,05). O cultivo por cinco dias aumentou a ativação folicular em todos os tratamentos (P<0,05). A análise ultra-estrutural não mostrou folículos pré-antrais íntegros após cinco dias de cultivo em meio contendo antioxidantes. Concluiu-se que o α-tocoferol e a ternatina podem promover a ativação folicular, no entanto a adição desses antioxidantes nas concentrações testadas reduziu a viabilidade folicular após o cultivo in vitro.


Subject(s)
Animals , Antioxidants/pharmacology , Ovarian Follicle , alpha-Tocopherol/pharmacology , Ovarian Follicle , Goats
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