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Physiological stress responses in broilers as affected by drinking water supplements or dietary corn particle size^1,2

Department of Poultry Science, Mississippi State University, Mississippi State 39762

³ Corresponding author: mkidd{at}poultry.msstate.edu

The detrimental effects of physiological stress on broilers are well documented. However, little research exists to delineate the effects of different nutritional regimens on the stress response in broilers. Hence, an experiment was conducted to examine the effects of sucrose and supplemental water electrolytes on Ross 308 male broilers during corticosterone-induced stress, as well as the particle grind size during poststress recovery. Feeding broilers supplemental water electrolytes during corticosterone-induced stress resulted in improved live performance. Feeding water sucrose to stressed broilers did not result in live performance improvements during the stress period. However, broilers fed water-sucrose or water-electrolyte treatments during the stress period had improved feed conversion during stress recovery. Feeding broilers a diet with increased particle size during stress recovery had no effect on live performance. Carcass measurements were not affected by any treatment. Water-electrolyte or water-sucrose supplements appear to have some potential as stress amelioration agents and thus should be researched more thoroughly.

Key Words: physiological stress • broiler • amino acid digestibility

¹ This is journal article number J-11144 from the Mississippi Agricultural and Forestry Experiment Station (Mississippi State, MS) supported by MIS-322230.

² Use of trade names in this publication does not imply endorsement by the Mississippi Agricultural and Forestry Experiment Station of the products, or of similar ones not mentioned.