Italian Renaissance Art. Florence (Quattrocento), Rome and Venice (Cinquecento). A-Z of ART MOVEMENTS. The Dome of Florence Cathedral, designed by Filippo Brunelleschi. (1377-1446), was a public symbol. of Florentine superiority during. the early Italian Renaissance.
How to Tell when a Cow or Heifer is in Estrus. Estrus is defined as the period where a female (in this case, a cow or heifer) is receptive to a male (or, the bull). Estrous, on the other hand, is the whole reproductive heat cycle that a female goes through, from heat period to no heat period (Proestrus, Estrus, Metestrus, and Diestrus).
Here is a plain English explanation of common jargon used to describe dogs and the estrous cycle: 1  Males are dogs. 2  After females deliver a litter, they are referred to as dams. 3  Progeny are pups. 4  Proestrus is the time prior to estrus. 5  Estrus is the egg production and ovulation period. 6  Diestrus is the period of time following estrus.