A Heat is Refers to the Estrous period for a female of breeding age. In swine, the first Estrous normally occurs 3 to 5 days after the pigs are weaned.
Other /More definition:
A Heat is Refers to the estrous period for the sow. The first estrous normally occurs 3 to 5 days after the pigs are weaned.
Other /More definition:
Heat is Form of kinetic energy that flows from one body to another when there is a temperature difference between the two bodies. Heat always flows spontaneously from a hot sample of matter to a colder sample of matter. This is one way to state the second law of thermodynamics.

-See also:
"Heat" is in the NAICS Code "332410"
(Power Boiler and Heat Exchanger ManufacturingNuclear reactor steam supply systems manufacturing)


"Heat" is in the HS Code "8418"
Refrigerators, Freezers And Other Refrigerating Or Freezing Equipment, Electric Or Other; Heat Pumps

"Heat" is in the UNSPSC Code "27112717"
Heat guns

List of books: Heat

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