The air bound is also noteworthy because the humidity

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the air bound) is also noteworthy because the humidity will affect the perceived temperature of the chicken. This is due to the chicken’s body heat expenditure with panting. The higher the humidity, the effective temperature felt chicken also 2
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higher. In contrast, the chicken will feel colder temperatures than the environment temperature when the humidity is low. Cases of heat stress are more common in adult chickens because more produce heat, so much easier stress. We've mentioned before that the mechanism of heat expenditure in chickens is panting. This mechanism is usually a last resort chosen chicken. The chickens will expand the body surface area (expand/drape wings) and doing peripheral vasodilatation (increased peripheral blood flow, especially in the comb, wattles, and legs). When hot, feed consumption will be decreased while the water is increase, so sometimes watery feces occur and decreased productivity as consequence of unmet nutritional and metabolic disorders. Death is also frequently found, especially if panting is not able to decrease the body temperature optimally. REFERENCES Jacob, J., Pescatore, T. and Austin, C. 2011. CHICKEN ANATOMY AND PHYSIOLOGY . . tanggal akses 18 September 2011. Lin, H., Jiao, H. C., Buyse, J. and Decuypere, E. 2006. STRATEGIES FOR PREVENTING HEAT STRESS IN POULTRY. World’s Poultry Science Journal 62(2):71-86. Shakya, R., etc. 2005. THE ROLE OF GDNF IN PATTERNING THE EXCRETORY SYSTEM. Developmental Biology 283(1):70-84. 3
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