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Acidifying and yeast extract in diets for adults cats
Author(s) -
Ogoshi Rosana C. S.,
Zangeronimo Márcio G.,
Dos Reis Jéssica S.,
França Janine,
Santos João P. F.,
Pires Carolina P.,
Chizzotti Ana F.,
Costa Adriano C.,
Ferreira Lívia G.,
Saad Flávia M. O. B.
Publication year - 2014
Publication title -
animal science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.606
H-Index - 38
eISSN - 1740-0929
pISSN - 1344-3941
DOI - 10.1111/asj.12166
Subject(s) - dry matter , cats , breed , zoology , factorial experiment , completely randomized design , nutrient , urine , phosphoric acid , yeast , organic matter , latin square , food science , biology , chemistry , medicine , fermentation , biochemistry , ecology , mathematics , statistics , rumen , organic chemistry
This study evaluated the effects of adding an acidifying agent based on phosphoric acid ( A ), a yeast extract from a specific strain ( S accharomyces cerevisiae ) ( Y ) and the combination of these two additives in food for adult cats. A test was conducted with 24 animals (mean 3.5 years old), mixed breed, weighing 3.72 ± 0.74 kg, kept in individual metabolic cages and distributed in a completely randomized design with a 2 × 2 factorial design (with or without A 0.6% of dry matter, with or without Y 1.5% of dry matter) totalling four treatments and six replicates of each condition. The experimental period was 15 days. The A or the Y reduced ( P < 0.01) the dry matter intake, but the effect was not observed when they were associated. The association improved ( P < 0.05) the digestibility of dry matter and ashes. The A reduced urine pH ( P = 0.05) regardless of the presence of the Y . There was no effect ( P > 0.09) on other parameters evaluated. Results of this study show that the isolated use of 0.6% A or 1.5% Y in diets for cats is not recommended. However, the association of these two additives was beneficial in increasing nutrient digestibility.