Which physical trait is explicitly linked to shedding excess metabolic heat in Zebu?
Answer
Massive surface area provided by the dewlap and loose skin
The adaptation mechanism inherent in Zebu cattle relies heavily on physical features designed for cooling in hot environments. The most significant contributor to shedding excess metabolic heat is the massive surface area created by the combination of the dewlap and the overall looseness of the skin covering the body. This extensive surface area enhances convective heat loss, enabling the animal to dissipate heat load efficiently. When producers crossbreed Zebu with European stock in hot locales, the size of the dewlap is monitored closely, as its presence is a reliable physical marker confirming the inheritance of this crucial tropical hardiness and effective cooling system.
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