SHORT COMMUNICATION
Effect of maize processing on diet selection by bovine
 
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1
College of Veterinary Medicine and Animal Science, University of Sao Paulo-USP, Brazil
2
Nuclear Energy Center for Agriculture, University of Sao Paulo-USP, Brazil
3
Brazilian Institute of Geography and Statistics-IBGE, Brazil
Publication date: 2004-08-30
 
J. Anim. Feed Sci. 2004;13(Suppl. 1):659–662
 
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ABSTRACT
Effects of maize processing on diet selection was studied in 12 fistulated dry cows. Subexperimental period was repeated twice (8 animals/treatment) and lasted 20 days. Treatments allowed selection between roughage and processed maize: (CG) coarsely-ground, (FG) finely-ground and (SF) steam-flaked. Urea was used with sugar cane (10% of crude protein) to avoid N influence over selection. Intake of maize in SF was 45.1 and 42.1% lower than in CG and FG, decreasing total DM and TDN intake, and increasing NDF intake. However, degradable starch intake did not differ. Animals were able to recognize differences among maize physical characteristics.
ISSN:1230-1388