When the female is ready the male will know.
Yes.
No they can be introduced while in heat.
No. Bred mares are not receptive to the stallion because they are bred, not in heat.
Whether that is the reason or not, is indefinite. However, the male has hormones in his urine that the female cat responds to, and these could trigger her mating response. no, don't they sniff each other out? The female emits pheromones when she is in heat that the male cat responds to. So the order is, the female is in heat and THEN the male sprays to mark territory.
Male dogs will notice a female at any stage in heat, however she will not let him mount her until she is ready to be bred. If she has let a male mount her she is at the stage in her heat where she can become pregnant.
Male cats do not go into heat like female cats do. Female cats go into heat to attract male cats for mating, while male cats are always ready to mate when a female cat is in heat.
A tigon is bred by mating a male tiger with a female lion. The opposite cross, mating a male lion with a female tiger, results in a liger.
Male rabbits are pose to be 6 months to bred. with a female rabbit.
Meat chickens are typically female, as they are bred specifically for their meat production.
I'm assuming that you are reffering to what colors should be bred to a blue dane. The AKC breed standard states that a blue great dane may be bred with one that is a blue or a black.
yes i have one my white female bred with a black male
No. Only a male can impregnate a female. No female mammal of any species can get another female pregnant. For mammals that have a "heat" cycle, being in "heat" is required for pregnancy by a male. If such a mammal (a dog for instance) is not in heat or doesn't have a male partner, pregnancy is not possible.