O estudo objetivou oferecer informações sobre a morfologia (in vivo e na carcaça), características comerciais, componentes do peso vivo, qualidade da carcaça e da carne em cordeiros não castrados cruzas de Border Leicester ...

O estudo foi realizado no Centro de Pesquisa de Pecuária dos Campos Sulbrasileiros, Embrapa, Bagé, RS, em sua fase experimental e no Departamento de Zootecnia da Universidade Federal de Pelotas, RS, em sua fase laboratorial. ...

Este trabalho teve como objetivo analisar o efeito do sexo sobre a avaliação in vivo e da carcaça de cordeiros Corriedale. Foram utilizados 65 cordeiros Corriedale, 27 machos castrados e 38 fêmeas, oriundos do município ...

Objetivando oferecer subsídios para otimizar a relação entre avaliação in vivo e da carcaça foram estudados 56 ovinos de diferente sexo, procedentes de quatro produtores (lotes) e três raças, comercializados com a marca ...

O presente estudo objetivou verificar o efeito da castração e da idade de abate e sua interação sobre a morfologia “in vivo” e da carcaça e características produtivas e comerciais em ovinos da raça Corriedale. Foram ...

O experimento foi realizado no Centro de Pesquisa de Pecuária dos Campos Sulbrasileiros (Embrapa-Pecuária Sul) de Bagé, RS, em sua fase de campo e no Departamento de Zootecnia da Universidade Federal de Pelotas, RS, em ...

Previous studies in chick embryo cardiac myocytes have shown that the inhibition of Na+/K+-ATPase with ouabain induces cell shrinkage in an isosmotic environment (290 mOsm). The same inhibition produces an enhanced RVD ...

The membrane skeleton in spherical cardiac myocytes subjected to hypo-osmotic challenge was examined by laser scanning confocal microscopy. A distinct cortical layer intimately localized under the plasmalemma was revealed ...

The freshwater bivalve, Corbicula fluminea, when submitted to hyperosmotic solutions, behaves as a hyperosmoconformer; we have observed an increase in osmolality and ions in its extracellular fluid. Osmotic and ionic changes ...

Decapod crustaceans occupy various aquatic habitats. In freshwater they are osmoregulators, while marine species are typically osmoconformers. Freshwater crustaceans are derived from marine ancestors. The hypothesis tested ...

The effect of copper on ion content (Na þ , K þ , Ca2þ , and Cl _ ) was evaluated in isolated mantle gills of the marine clam Mesodesma mactroides. Clams were collected at the Mar Grosso Beach (São José do Norte, Rio Grande ...

The electrical properties of Aplysia brasiliana myogenic heart were evaluated. Two distinct types of action potentials (APs) were recorded from intact hearts, an AP with a slow rising phase followed by a slow repolarizing ...

To broaden the understanding of physiological responses of tropical fish to environmental stressors, the effects of nitrite on haematological parameters and plasma and red blood cell ion regulation were studied in two ...

In vivo copper accumulation was determined in tissues (mantle, gills, digestive gland, and hemolymph) following exposure to Cu (5mM) for up to 96 h. Mantle was the tissue that accumulated the most Cu, followed by gill, ...

Inorganic lead has been measured in high concentrations in certain streams in Brazil. This study has evaluated the osmoregulatory effects of lead on the native freshwater red crab Dilocarcinus pagei. In order to probe its ...

This study aimed at detecting possible patterns in the relationship between Anisosmotic Extracellular Regulation (AER) and Isosmotic Intracellular Regulation (IIR) in crustaceans and teleost fish from different habitats ...

Cardiac myocytes isolated and cultured from 11 day chick embryos present a Ca2+-dependent regulatory volume decrease (RVD) when exposed to hyposmotic stimulus. The RVD of myocytes from different embryonic stages were ...

We investigated the possible role of ion channels and transporters in cell volume control using Aplysia brasiliana ventricular tissues exposed to a 26% hyposmotic shock, by assessing changes in wet weight, intracellular ...

Volume changes of cardiac tissue under hyperosmotic stress in Rana catesbeiana were characterized by the identification of the osmolytes involved and the possible regulatory processes activated by both abrupt and gradual ...

Cultured chick embryo cardiac myocytes submitted to a 180 mOsm/kg hyposmotic solution swell present a regulatory volume decrease (RVD). This RVD is mediated by a Ca2+ influx followed by a 40% loss of total taurine content ...