Cattle Reproduction

Sometimes. But most of the time when a cow expels the after birth she leaves it for coyotes, wolves, dogs or any other predator/scavenger to eat up. Most females will eat the placenta to hide the scent of her birthing area, plus it provides extra nutrition for her when suckling her young.

Yes, as in the sense promote abortion to occur. Lutalyse is a synthetic hormone designed to lyse a corpus luteum (or break down the corpus luteum) and bring a cow back into heat. Lutalyse is also used to abort females that should not or cannot be bred for certain reasons such as age, health, temperament or abnormal reproduction organ structure. If a cow is pregnant and is given Lutalyse, the cow may abort the fetal calf.

A young male bovine is called a bull-calf. If he's a yearling he's called a yearling bull.

If he has been castrated right after birth he is called a steer-calf. Upon being weaned and reaching one year of age he is called a steer.

A young female bovine is called a heifer-calf. After she's weaned she's known as a heifer. At around one year of age she is commonly called a yearling heifer.

A baby bull calf looks just like a normal calf, except there is a more pronounced navel than what would be found in a heifer calf. And, yes, they are very cute. But remember, they grow up to be big, intimidating bulls that shouldn't be messed around with, even when they're babies.

you should ask them humans

Her udder swells with colostrum, her vulva engorges with blood, her sides will sink in front of her thurls, there may be some mucous coming out of her vulva. She'll get fidgety and look for a place to calve. When her udder is full, she's about 3-7 days from calving, although some cows or heifers won't show any freshening until the day they are about to calve. When her sides sink in, she's 1-3 days from calving. When there is discharge from her vulva, she's less than a day away from calving. When you see that water bag, she's in labor and it's just a matter of minutes.

When she's in labour, she will be pacing around, laying down then getting up repeatedly, stopping suddenly as if she's straining (which she probably is), and thick mucus discharge from her vulva, soon followed by a water sac (yellowish in colour). Soon after the water sac appears you should be able to see feet sticking out, and these feet should have the bottoms pointing downwards, indicating that the calf is coming front first. You should also see that BOTH feet are coming out; if there's just one you might want to consider getting the cow in a head-gate for you to go in and bring the leg up or get the vet to do it. Soon after the feet and the first part of the legs show the nose, muzzle and head soon follow, then the shoulders. After the shoulders the rest pop out easily, however trouble can also come if the hips get locked in the cow's pelvis. Don't hesitate to help her out then either if she doesn't progress to dropping the rest of the calf. But if the hips don't get locked, before you know it you'll have a new baby calf on the ground. Congrats!

You should wait about an hour to feed her anything, it is a good idea to give her some good quality hay then give her some grain so she does not gorge on the grain. As much warm water as she will drink should be given to her after birth, this can be given to her as soon as she gets up.

Since cows are mammals, baby calves get milk from their mother's mammary glands. These are located below the female cow's rib cage, on their abdomen, slightly forward of their hind legs. They are commonly known as udders, and the average cow's udders have four nipples, called teats. These teats are about as long as a person's middle finger.

On the cow, it's usually its called hide or skin.

After the cow is skinned, it's called hide, leather, cowhide, pelt, that sort of thing.

A cow will (or should) start to ovulate 18 to 24 days after giving birth. Cows that have given birth to a stillborn calf or have aborted their calves will tend to start ovulation sooner. A cow that has a retained placenta may take longer to come back into estrus as well. But, even though a cow has started to ovulate within a couple weeks after birth, her normal cycle will still be out of whack because it takes a while for the uterus to complete involution (shrinkage). Typically a cow's ovulation is a bit irregular, with the heat periods lasting for a shorter time than usual, and she will often come back into heat a week after her first one. This is because the corpus luteum is still in the stages of regrowth, and may die or not produce again for a period of time after the first one or two heats after she's given birth. Progesterone in her system is still too strong to let her have normal heat periods so soon after birth.

However, even taking into account involution and anestrus activity in the cow and the first-calf heifer, how soon a cow or heifer will come back into heat after calving really depends on the genetics, breed, age and body condition score of that cow or heifer. Usually older cows (those that are older than 6 or 8 years of age) may decrease in fertility and come back into heat much later than younger cows or heifers. Thin cows almost always take longer to come back into heat than cows that are in normal condition or than fatter cows--though there is a limit to fatness as well. Normal body condition for cattle is a BCS (Body Condition Score) of 5 to 6 on a scale of 1 to 9, or a BCS of 3 to 3.5 on a scale of 1 to 5. Typically heifers and first-calf heifers should be in a bit better condition than mature cows because of their body's needs for growth by a difference of BCS 0.5 to 1, depending on what BCS scale you wish to use. (On a BCS scale of 1 to 9, each difference in number is equal to 100 lbs) However, cows that are overly fat (BCS 7 to 8 or 4 to 4.5) may also have problems breeding back due to fat on their ovaries.

So, above all, it is best to wait until 45 to 80 days have passed after she has given birth to her calf before you can let her get bred again.

A cow IS female. A cow is a female mature bovine that has had a calf. However the general population tend to refer to a " cow" as a more general term for any bovine of the Bos taurus or Bos indicus species, particularly if they can't tell the sex of the animal from near or far.

Since Brahmans are the latest maturing breed of all the breeds in North America, most heifers don't reach puberty until they're around 18 to 20 months of age. Bulls won't reach puberty until they're around 16 to 18 months of age. They are able to breed once they have passed this age-point of sexual maturity.

A cow is a female bovine who has had a calf. She was a calf when she was born, became no longer a calf after she was weaned. Before being put to the bull for the first time she was a heifer and became a cow after she had her first calf.

Cows (being the mature female domestic bovine), bison, elk/wapiti, whales, elephants, African cape-buffalo, water buffalo, rhinoceros, hippopotamus, giraffes, wildebeest, guar, banteng, yak, moose, caribou, reindeer, walrus, sea lion, sea elephant, etc.

It depends on the difficulty of the birth. For some cows, the calving is really easy and they can easily push out the calf while standing. For others, the pain can be a bit too much and they have to lay down to calve. It also depends on the individual cow: some like to stand to give birth (or can), others prefer to lay down on their sides.

Dairy calves can only be a day or two old before they are able to live outside of a shelter. Beef calves are born outside all the time and only need shelter if they are born during winter (winter as in the type of winter that is experienced in countries such as Canada and Russia).

The best time to give a newborn calf its shots is almost right after it's born, at the same time you tag and castrate (if it's a bull calf) it. Vitamins A, D and E and Selenium (if your area is Se deficient) are the best vaccines to give a newborn calf to help build its immune system and reduce incidence of white muscle disease (only in areas where Se is deficient.) Your cows should have been vaccinated 6 weeks prior to calving with scours prevention (for new cows and replacement heifers only), IBR (infectious bovine rhinotracheitis), BVD (bovine viral diarrhea) and other reproductive diseases as would be mentioned by your veterinarian. If you've failed to give your pregnant cows these annual vaccinations, then the calves will have to be injected with them.

When calves are 8 to 16 weeks old, calves should be given vaccines to IBR, PI3, BVD, BRSV (bovine respiratory snycytial virus), 8- or 9-way Clostridial, lepto, histophilosis, etc., or vaccinate according to your veterinarian's protocol or herd health program specially made for your herd.

She will naturaly come into heat every 21 days, however, if she is not coming in heat an injection of a synthetic prostoglandin is recommended. This will cause regression of the corpus luteum (what aids in heat cycles). You will see a heat cycle within 2 to 5 days post injection. Discuss with your veterinarian what injection is available in your area and what is best suitable for your herd.

An example of this type of injection is Estrumate.

Well it's possible but eventually it would come out. You can't hold in things for so long.

Ideally, it is around 10 months long.

About 18 to 24 months. Calf is on his mother for 6 to 10 months, then backgrounded for a few months to a year, then in the feedlot for a further few more months before slaughtered.

A healthy newborn foal should be trying to get up and walk to the mare to nurse in less than an hour. The mare should be nuzzling the foal and licking it, encouraging it to stand to nurse and learn to walk.