Cristina L Tôrres

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The percentage of protein that dogs voluntarily choose and the effect of palatability on the quantity selected were determined. Six beagles were offered a choice of two isoenergetic purified diets containing 0 vs. 25, 9 vs. 32, 18 vs. 32, 18 vs. 48 and 25 vs. 48% metabolizable energy from protein (MEp). To examine whether palatability modifies the choice,(More)
BACKGROUND In human blood, the amino acid cysteine forms disulfide bonds with itself and with other sulfhydryl compounds in their free form and with sulfhydryls in protein. Protein-bound cysteine is lost when plasma proteins are removed before amino acid analysis. OBJECTIVE The purpose of this study was to assess the time course and extent of cyst(e)ine(More)
Copper deficiency has been reported to cause a decrease in urinary taurine excretion in rats. We determined whether Cu deficiency would decrease taurine status and the hepatic activities of cysteine dioxygenase (CDO) and/or cysteine sulfinic acid decarboxylase (CSAD) in rats. Ten weanling male rats were assigned to either a Cu-adequate (+Cu) or Cu-deficient(More)
Taurine (Tau) deficiencies have been associated with the feeding of commercial lamb-meal and rice diets to dogs. We hypothesized that the poor digestibility of some lamb-meals may limit sulphur amino acids availability for Tau synthesis and/or increase of Tau degradation in the gut. Growing dogs were fed either a lamb-meal-based (Diet A) or poultry(More)
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