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Climatic Environment and Energy Metabolism in Broilers

  • Chapter
Energy Metabolism in Farm Animals

Part of the book series: Current Topics in Veterinary Medicine and Animal Science ((CTVM,volume 44))

Abstract

Effects of climatic environment on performance, energy metabolism, energy retention and protein to fat ratio in deposited energy of growing broilers are discussed. The thermal requirement of chickens is related to both environmental and internal factors.

Quantitatively, physical activity accounts for the highest waste of dietary energy. It is released as heat to the environment. Muscular activity in combination with active behaviour is one of the processes involved in normal circadian rhythms of metabolism. Excesses of excitement and physical activity may be avoided by an environment adapted to natural rhythms in metabolism and activity.

Attention is paid to application of ambient temperatures below or partly below the zone of thermoneutrality combined with high energy diets containing sufficient amino acids to stimulate feed intake and growth after three weeks of age. The limited significance of the zone of thermoneutrality for fast growing birds is discussed.

Experimental results indicate that the heat production which seems to be related with protein deposition cannot be solely considered as the direct costs of protein synthesis. The higher levels of heat production in accompaniment with a higher rate of protein deposition may be more related to a simultaneous enhanced level of physical activity.

It is important to know to what extent environmental conditions affect activity. This knowledge can be used to define optimal conditions for broiler production. The fast development of modern techniques will facilitate application of such knowledge.

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© 1987 Martinus Nijhoff Publishers, Dordrecht

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Scheele, C.W., Van Der Hel, W., Verstegen, M.W.A., Henken, A.M. (1987). Climatic Environment and Energy Metabolism in Broilers. In: Verstegen, M.W.A., Henken, A.M. (eds) Energy Metabolism in Farm Animals. Current Topics in Veterinary Medicine and Animal Science, vol 44. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3363-7_14

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  • DOI: https://doi.org/10.1007/978-94-009-3363-7_14

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