Effect of papain utilization in extruded diets for dogs

• Grant number: 11/17502-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: November 01, 2011
• End date: July 31, 2012
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding
• Principal Investigator: Aulus Cavalieri Carciofi
• Grantee: Karine de Melo Santos
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

The common protein sources of dog food are mainly animal by-products meals. These ingredients may have a compromised digestibility. The present study will evaluate the use of papain as an enzymatic supplement in extruded dog diets regarding nutrient digestibility, fecal quality and production, and food palatability. Dog food will be formulated with poultry by-product meal, meat and bone meal, and feather meal as protein sources. These formulae will be unfolded into three diets: control, without enzymes; addition of 855,000UI/kg of papain; addition of 2,280,000UI/kg of papain. Each food will be fed to six dogs, in a block design with two blocks of 9 dogs. Data will be evaluated by variance analysis and polynomial contrasts (P<0.05).(AU)