Effect of copper and manganese hydroxychloride supplementation on the bone quality of broiler chickens

• Grant number: 19/24947-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2020
• End date: January 31, 2021
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding
• Principal Investigator: José Roberto Sartori
• Grantee: Paola Aparecida Damázio Rodrigues
• Host Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

Mineral supplementation in broiler diets is usually performed by inorganic sources such as sulfates and oxides. Inorganic sources are known for their low bioavailability and are rapidly dissociated in the gastrointestinal tract and are free to interact with antagonists. Traditionally the mineral supplementation in the chicken feed from this source is with values above the recommended contributing to environmental pollution. Hydroximinerals have emerged as an alternative source of mineral supplementation in animal nutrition. This new source is known for its greater binding force between minerals decreasing negative interactions in the gastrointestinal tract with other nutrients, consequently, there is an increase in mineral bioavailability for animals. Thus, the purpose of this study is to analyze the supplementation of copper and manganese hydroximinerals in the diet of broilers chickens and their effects on bone quality. For this, 1920 male one-day-old chicks will be housed and distributed in a completely randomized design with 8 treatments, 8 replications totaling 64 replicates with 30 birds each. The treatments will be distributed in 2x3 + 2 factorial arrangement: two levels of copper (15 and 150 ppm) and three levels of manganese (40, 80 and 120 ppm) both in the hydroximineral source plus two additional treatments: low control (basal diet with supplementation of 15 ppm copper sulphate and 80 ppm manganese sulphate) and high control (with 150 ppm copper sulphate and 120 ppm manganese sulphate). After the bone quality of the tibias will be analyzed, testing the bone strength and density, dry matter, ash content and the concentration of copper and manganese. (AU)