title: Inclusion of Yucca schidigera extract in diets with different protein levels for dogs.
abstract: This study evaluated the effects of inclusion of Yucca schidigera extract (YSE) in two diets with different levels of crude protein (CP) for dogs on facal odour, nutrient digestibility, ammonia concentration in feces and hematological and serum biochemical profiles. Twenty adults Beagles were used, distributed in a randomized block design in a 2 × 4 factorial design (two diets, 25% and 34% CP, and four YSE levels: 0, 250, 500 and 750 mg/kg) with five replicates, obtained during two experimental periods. The fecal odour reduced (P < 0.05) when 500 mg/kg of YSE was used in diets with higher CP. The inclusion of YSE reduced (P < 0.05) fecal ammonia, and the inclusion of 250 and 500 mg/kg YSE reduced intestinal gas. The inclusion of 750 mg/kg YSE increased the mean corpuscular hemoglobin (MCH), alanine aminotransferase (ALT) activity and tended to increase the serum cholesterol concentration, regardless of the protein level of the diets. There was no effect on the digestibility of nutrients, fecal consistency, nitrogen balance and thickness of the intestinal wall. The inclusion of 500 mg/kg YSE is effective in reducing fecal odour in dogs receiving diets with 34% of CP. Regardless of the protein content, YSE reduces fecal ammonia, but may cause adverse effects if included at higher doses.
authors.affiliation: Animal Science Department, Federal University of Lavras, Lavras, Minas Gerais, Brazil.
authors.forename: Jéssica S
authors.initials: JS
authors.lastname: Dos Reis
authors.affiliation: Veterinary Medicine Department, Federal University of Lavras, Lavras, Minas Gerais, Brazil.
authors.forename: Márcio G
authors.initials: MG
authors.lastname: Zangerônimo
authors.affiliation: Animal Science Department, Federal University of Lavras, Lavras, Minas Gerais, Brazil.
authors.forename: Rosana C S
authors.initials: RC
authors.lastname: Ogoshi
authors.affiliation: Animal Science Department, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil.
authors.forename: Janine
authors.initials: J
authors.lastname: França
authors.affiliation: Animal Science Department, Federal University of Lavras, Lavras, Minas Gerais, Brazil.
authors.forename: Adriano C
authors.initials: AC
authors.lastname: Costa
authors.affiliation: Animal Science Department, Federal University of Lavras, Lavras, Minas Gerais, Brazil.
authors.forename: Thomás N
authors.initials: TN
authors.lastname: Almeida
authors.affiliation: Animal Nutrition and Production Department, Veterinary Medicine and Animal Science College, University of São Paulo, Pirassununga, São Paulo, Brazil.
authors.forename: João P F
authors.initials: JP
authors.lastname: Dos Santos
authors.affiliation: Animal Science Department, Federal University of Lavras, Lavras, Minas Gerais, Brazil.
authors.forename: Carolina P
authors.initials: CP
authors.lastname: Pires
authors.affiliation: Animal Science Department, Federal University of Lavras, Lavras, Minas Gerais, Brazil.
authors.forename: Ana F
authors.initials: AF
authors.lastname: Chizzotti
authors.affiliation: Veterinary Medicine Department, Federal University of Lavras, Lavras, Minas Gerais, Brazil.
authors.forename: Carlos A L
authors.initials: CA
authors.lastname: Leite
authors.affiliation: Animal Science Department, Federal University of Lavras, Lavras, Minas Gerais, Brazil.
authors.forename: Flávia M O B
authors.initials: FM
authors.lastname: Saad
mesh_terms: D000410:Alanine Transaminase / Q000378:metabolism; D000641:Ammonia / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena / Q000187:drug effects / Q000502:physiology; D000818:Animals; D002784:Cholesterol / Q000097:blood; D004032:Diet / Q000662:veterinary*; D004044:Dietary Proteins / Q000008:administration & dosage*; D004063:Digestion / Q000187:drug effects; D004285:Dogs / Q000097:blood* / Q000378:metabolism*; D005243:Feces / Q000737:chemistry*; D006454:Hemoglobins / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism; D009812:Odorants / Q000032:analysis*; D010936:Plant Extracts / Q000008:administration & dosage / Q000009:adverse effects / Q000302:isolation & purification / Q000494:pharmacology*; D012503:Saponins; D027623:Yucca / Q000737:chemistry*
chemical_list: D004044:Dietary Proteins; D006454:Hemoglobins; D010936:Plant Extracts; D012503:Saponins; D000641:Ammonia; D002784:Cholesterol; D000410:Alanine Transaminase; D009584:Nitrogen
keywords: digestibility; faecal odour; haematological parameters; saponins