What is the reproduction of a male cow?

Answer 1

First off, "male cows" are referred to as bulls, not male cows. Now, a BULL has the reproductive organs that are similar to a human male, and are designed to create sperm and semen that are mixed together to be ejaculated into the cow when mating with the cow. A bull can mate anytime of the year any time he feels (except when he's injured, hungry, tired, or just doesn't have the libido), unlike cows, and often will breed around 50 cows in one breeding season.

Bulls, like all male mammals, have testicles for producing sperm that hang below the body for adequate sperm production, and a penis that is used to inseminate a cow or heifer. The penis is housed in the sheath in the belly for protection, and often when a bull is aroused by pheromones from a female in heat, he will show the foreskin and penis from the middle of his belly where the sheath is. The penis is controlled by muscles called the Sigmoid Flexture muscles which cause the penis to retract into the bull's abdomen (thereby forming an S curve), and relax when the bull is sexually aroused and about to mate. When fully erect, the penis can get as long as 3 feet, and be 2 to 3 inches in diameter. Also, the penis, as mentioned previously, is naturally already hard and doesn't "get hard" like a stallion's or man's penis would. A stallion's or a man's penis becomes erect by a rush of blood and increased diameter of muscle veins in the penis. This does not occur in the bull. Nor does a bull's penis increase in diameter when erect; it literally stays as is when it reaches full erection.

Before mating, a bull will foreplay with a cow or heifer first by following her around, licking her side, rump, genitalia, and even the udder, doing a Flehmen response when she urinates (the bull wrinkles his nose up and lifts his head up and back as far as he can, letting the urine drain into the Jacobson's organ in his nose to detect pheromone activity), and resting his chin on her hindquarters, attempting to mount her several times before he successfully breeds her. Often a cow or heifer that is in heat will mount the bull first before she stands to let him service her. If there are more than one bull attending to her, she will get bred by more than one bull.

Bulls mount cows by propelling themselves by their hind-legs and letting their brisket rest on the rump/tailhead of the cow, thrusting his penis into the cow's vagina and giving one thrust that is forced by the bull by literally leaping with his hind legs (he'll only clear a few inches off the ground, btw) to thrust and ejaculate into the cow/heifer. Normal ejaculation will yield 7 mL of semen from a bull.