Zootecnica International - English edition - 07/08 July-August - 2020

Page 40

NUTRITION

S. Gómez-Rosales A,B, M. L. Angeles A, L. H. López-Hernández A, Y.R. López-Garcia A, A. Domínguez-Negrete B A National

Center of Disciplinary Research in Animal Physiology, National Institute of Research in Forestry, Agriculture and Livestock, Mexico B

Faculty of Natural Sciences, Autonomous University of Queretaro, Mexico

38

Effect of the type of diet and the addition of humic substances as growth promoter in broiler chickens In recent years, humis substances have been tested as growth promoters in animal production and are one of the promising options to face the globally ban of antibiotics in feeds. The objective of the study was to evaluate the productive parameters, carcass yield, histopathology and microbiology of the small intestine and liver in broilers fed diets added with an extract of humic substances (EHS) and with low and high fiber content (LF and HF).

- nutrition -


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