Feed withdrawal, potassium chloride, and carbonated water effects on broiler thermotolerance
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Output type: Journal article
Author list: Soutyrine AG, Smith MO, Sivanadian B, Soutyrine AG
Publisher: Oxford University Press (OUP): Policy B - Oxford Open Option B
Publication year: 1998
Journal: Journal of Applied Poultry Research (1056-6171)
Volume number: 7
Issue number: 2
Start page: 138
End page: 143
Number of pages: 6
ISSN: 1056-6171
eISSN: 1537-0437
Abstract
High summer temperature causes significant loses in growth performance in broiler production. This study examined the effects of various feed withdrawal periods (10, 8, and 6 hr) and K salt solution or carbonated water on various growth and physiological responses of commercial broilers reared under heat stress. Responses measured included body weight, livability, feed efficiency, water consumption, body temperature, and respiration rate. Birds subjected to feed withdrawal always exhibited better performance than the control, with 8-hr feed withdrawal yielding the best response in most performance traits of 7-wk-old birds. The combination of the 8-hr feed withdrawal and KCl in water had a significant effect on body weight, feed efficiency, water consumption, and body temperature. Broilers reared at elevated temperature with anti-heat stress measures (feed withdrawal, KCl in water, CO in water) showed significant improvements in performance and physiological variables after 6 wk of age.
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