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Seasonal distribution of nutrients and primary productivity on the eastern continental shelf of Venezuela as influenced by the Orinoco River
Nitrogenous nutrients, dissolved silicate, and salinity were measured in surface waters and shallow hydrocasts along similar cruise tracks during the spring (dry season) and fall (wet season) of
CONCENTRACIONES DE METALES EN SEDIMENTOS Y TEJIDOS MUSCULARES DE ALGUNOS PECES DE LA LAGUNA DE CASTILLERO, VENEZUELA. Metals Concentration in Sediments and Muscular Tissues of Some Fish from the
Resumen es: Con el proposito de detectar alteraciones en el productivo ecosistema de la Laguna de Castillero (Caicara del Orinoco, municipioCedeno del estado Bolivar...
Heavy metal speciation in the surface water dissolved fraction of the low watershed and plume of the Manzanares River, Sucre State, Venezuela
This paper reports on the speciation of heavy metals (Cd, Pb, Cr, Cu, Ni, Mn, Fe, and Zn) in the surface water dissolved fraction of the low basin and plume of the Manzanares River, in the state of
Changes in body composition and efficiency of food utilization for growth in young adult female rats before, during and after a period of food restriction.
TLDR
During recovery of body weight rats laid down more fat and less protein than during normal growth through the same body weight range and the percentage of digestible energy retained as body tissue was increased.
Effects of semi-starvation on the total body composition and absorptive function of the small intestine of the young adult female rat.
TLDR
Sixteen female rats aged about 80 days and with a mean body weight of 175 g were fed 40% of their ad libitum intake of a laboratory chow and analysed for water, protein, lipid and ash and the ability of the intestine to absorb increased.
Effects of caecectomy in the young adult female rat on digestibility of food offered ad libitum and in restricted amounts.
TLDR
The colon partly adapted to the loss of caecal mucosa by increased length and thus mucosal surface area, and was excreted faster in the faeces after caecectomy.
The effects of coprophagy in the adult rat on rate of passage of digesta and on digestibility of food fed ad libitum and in restricted amounts.
TLDR
In food-restricted rats a decrease in the time for the first appearance in the feces of a digesta marker was noted when prevention of coprophagy was followed by permitting rats to feed on their feces while being maintained on a restricted food intake, as compared to control rats permittedCoprophagy throughout.
The effect of semi-starvation on the digestibility of food in young adult female rats.
The apparent digestibilities of organic matter, protein, lipid and carbohydrate of a laboratory chow were determined in young adult female rats fed ad libitum, after losing 40-50% body weight and
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