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Cattle Reproduction

Knowing reproduction of cattle is important to the herd, no matter how big or small it is. Cattle reproduction involves breeding, genetics pregnancy, calving, care of the young calf and weaning, all of which is involved in the reproduction of cattle. Questions about everything involving in cattle reproduction, including a little on lactation, can be asked and answered here.

1,831 Questions

What causes uterine prolapse in cows?

A number of factors causes a cow to prolapse her uterus:

  • Difficult calving that causes injury or irritation to the birth canal
  • Severe straining during birth
  • Excessive pressure applied when pulling a calf
  • Poor uterine tone
  • Nutritional-related problems with low blood calcium levels
  • Cow is in poor body condition
  • Retained placenta
  • Loose uterine attachment in abdominal cavity
  • Prolonged pregnancy
  • Lack of exercise for the cow

See the related links below for more info.

Is it safe for a cow to get pregnant if it has a hernia?

Think about what a hernia is. What could happen if she did? Would this be safe? Why is this cow being breed? Are you going to eat her? Raise the calf to eat? For breeding stock? Why would you breed a cow that might pass on a tendency to have weak guts and pass that weakness on to the next generation? If you must have the vet fix it. Otherwise cull her out. No it is not safe. Find her a new home, down the road or in the freezer.

Why doesn't anybody cross a brahman cow with a longhorn?

They do, it's just not a common cross like Hereford to Angus or Simmental to Angus. Don't complain about it, just get a TL over that brimmer cow of yours and see what kind of calf you get and what it will grow up to be.

Can you cross a Brahman cow with a Longhorn bull?

Yes you can. You won't have any calving troubles with this cross. Productivity of the calf may be questionable, but it's worth a try.

Will dry cow help a cow with high cell count?

No. Unless some more information can be disclosed in the discussion page, the question does not make any sense otherwise.

What is the yearling weight of Hereford calf?

That all depends on the gender of that calf. Bull or heifer or steer?

Can a heifer safely calve at 16 months old?

A heifer should be getting bred at that age, not calving. But, I digress. Unless the heifer has been knowingly and purposely bred to a low birth-weight bull, I wouldn't count on it. Keep a constant eye on her when she gets to the point where she's about to "pop" any day and keep tabs on her progress. If she's having any difficulty, get the veterinarian out to see if she will have to have a calf pulled of if a Caesarean section (C-section) needs to be done on her.

How many day months or years does a calf live?

It depends on the type of calf. A dairy bull calf will live up to or around 4 to 6 months before being slaughtered for veal. A beef steer will live up to around 2 years of age before being slaughtered. A heifer calf kept as a replacement (who will become a cow) will live anywhere from 5 to 20 years of age, depending on her productivity. A bull calf kept as a herd bull can live to about the same age of the heifer calf kept to become a cow.

What would a White Galloway with black points typically produce in terms of color and white markings when bred to a Hereford?

That's kind of a "wait-and-see" sort of thing. You may get a calf that resembles a cross between a Speckle Park and a Hereford, something akin to a calf having a white face with a pink nose (or possibly black), dark color inside the ears and dark patches on either side of the body. There may be a dorsal stripe down the back from the nose to the tail and white under the body. The calf may also have black spots or patches on the feet and legs. But this is not certain, because genes have a way of making us make more of a guess than an assumption: it can be a guessing game when crossing one very differently-colored breed with another!!

For a picture of something similar (though the calf is from a British White cow, not White pointed Galloway) please see the related link below.

What would be the offspring be if a roan cow and a white bull were bred together?

The offspring produced is dependent on chances. We can figure out the chances of the kind of offspring such a cross will get by using a Punnett square. Unfortunately the WYSIWYG format on this site will not allow for such a square, so we will give the ratio, the genotypic and phenotypic percentages that such a cross will receive.

Let R = red, W = white and RW = roan.

Roan cow (RW) x White bull (WW)

Offspring: 2 RW : 2 WW

Genotypic ratio: 50% roan and 50% white

Phenotypic ratio: Same as above.

Thus, the offspring of a roan cow crossed with a white bull (presumably of the same breed, being Shorthorn), may come out as white or roan. There is a 50% chance that either will occur.

Why did your cow lie down on her own calf and kill it?

She was obviously more careless than she intended. She never did it deliberately, it more than likely was nothing more than an accident.

What can be done for a bull calf with rectal prolapse?

Get the veterinarian out immediately. The rectal prolapse in your bull calf could merely be a symptom of something more serious that needs to be addressed right away.

Why do cows hump up their backs after being bred by a bull?

It's because their vagina is irritated after having the bull's penis being thrusted up inside her.

Will hereford cow calve a limousin calf?

No. A Hereford cow will only give birth to a Hereford-Limousin cross calf if bred to a Limousin bull. Only a Limousin cow can give birth to a Limousin calf--IF she's bred to a Limousin bull. Just like a Hereford cow can only give birth to a Hereford calf if bred to a Hereford bull. Otherwise, she too (referring to the Limousin cow) can give birth to Hereford-Limousin-cross calf if bred to a Hereford bull.

What month do cows in UK give birth?

Any time of the year, or any month, depending on when the cow was bred.

What factors must be considered when selecting a bull for breeding?

There are all sorts of factors to consider:

  • What you're willing to spend on a bull
  • Genetic quality of that bull
  • Purebred, Fullblood or Crossbred bull
  • Age of the bull - virgin yearling or experienced 2 y.o. to mature bull
  • Conformation of the bull - the more "perfect" the bull is the better quality--in most cases--he will be for your herd.
  • Breed of the bull, depending on what you're using the bull for--crossbreeding, breeding up, replacement heifers, selling for beef, etc.
  • What your purpose for the bull is
  • Where you can purchase the bull from

There are many other things, but these are the most important to consider.

Why did my 5year old cow give birth to a dead 90pound calf?

You're better off asking your veterinarian that question, not this website.

However, a few reasons why she gave birth to a still-born calf:

  • Nutritional deficiency
  • Genetic abnormality causing calf to die
  • Calf spent too long in the birth canal
  • Other reasons, possibly one of which your large animal veterinarian can diagnose for you.

How much protein does a 1000 lb pregnant cow need per day?

This question is unable to be answered because we do not know whether this cow is lactating or not, what gestation period she is in, or even what type of cow she is--beef or dairy? Also, the amount of protein a cow gets is not on a per-day basis, it's as a percentage in her diet. Protein requirements for dairy cows is a bit different from beef cows (usually higher).

Can cows hair give people rashes?

For most, no. But some may be allergic to what is on the hair of a cow, no matter how microscopic it is.

What is the important reproductive characteristic in beef cattle?

The most important one is fertility. Second most important is mothering ability; third, milking ability.

Do male cows have a cervix?

Male cows don't exist. There are only cows and bulls, no female cows, male cows, male bulls, female bulls. With that said, only cows (which are, by definition, mature female bovines that have given birth to at least one calf) are ones that have cervixes, bulls do not. Bulls have their major reproductive organs close to or mostly outside their body, cows have theirs inside.

What is the reproductive efficiency ratio in cows?

There really is no such thing as "reproductive efficiency ratio" for cows. A cow's reproductive efficiency is not dependent on one particular ratio, but rather several factors such as environment, genetics, nutrition, age, body condition and management.

There is, however, another way to measure reproductive performance (or possibly efficiency) in a cow herd that a number of producers know and use. GOLD indicators is such a tool that is frequently used. GOLD stands for Growth in terms of weaning weight (calves should be ~45% of their dam's weight at weaning), Opens (a cow herd should have maximum of 4% open rate of cows), Length of calving season (should have a 63-day calving season or less), and Death loss of calves (should have less than 4% death loss in calves post-partum and abortion).