answersLogoWhite

0

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

How do you know if the cow is having a problem calving?

It depends, really. Often if you don't see a cow making any progress an hour or two after the water sac has appeared you will need to go in to help her. If you see the hooves of the calf in the wrong position, only one hoof, only a head, only a tail, or nothing at all, then you have to go in to see if she needs assistance or not. Most cases can be corrected if you know the proper procedures of doing so, but if you find the cow has too big a calf or the calf is in a difficult position that you cannot correct, then you need to call the vet immediately if you want to save the calf and the cow.

Is it possible for a cow to breed two weeks after giving birth?

Yes, but it's highly unrecommended. This is because the uterus needs time to fully complete involution (shrinking back to normal size) and for the cow to go back into her normal cycling. The first few heats after giving birth are shorter and more irregular than if she were back in her normal estrous cycle. This is primarily caused by a nonfunctional or unformed corpus luteum (the part of the cow's ovaries that is responsible for the the development and release of the ovum or egg into the main uterine tract) that hasn't quite or not formed after ovulation, or that died prematurely, and by progesterone levels that have remained too low to keep the cow from coming back into heat.

Short cycles are common when a cow is recovering her normal cycling after calving, which can be from 2 weeks to 2 months after giving birth, depending on her body condition, age and breeding. Her firs heat may be followed by another just 7 to 12 days later. The follicles immediately start to grow right after calving, but often take longer especially since she's nursing a calf. It takes from 45 to 80 days for a cow to resume normal cycling (Estrous cycles ever 21 days, estrus period lasts for 24 hours), in which she will be read to be bred again. Cows that lose a calf through abortion, DOA (dead on arrival), or by postpartum causes and dries up her milk, she will return to her normal cycling sooner.

Why would a pregnant cow appear paralyzed?

A pregnant cow may appear paralyzed due to a condition called pregnancy toxemia, which can cause weakness and neurological symptoms. It can occur when the cow is not getting enough energy from its diet to support the demands of pregnancy. Immediate veterinary attention is needed to address the condition and prevent further complications.

What is the age of puberty in cattle?

Cattle will begin puberty as young as 4 to 5 months of age and reach sexual maturity at about 1 year or 12 months of age. Naturally this depends on the breed and the genetics of the cattle herd itself. Some breeds will have bulls and heifers beginning puberty at 8 to 9 months, or even later, at 10 to 12 months. Such animals may not reach sexual maturity until 15 to 20 months of age, respectively, or more.

Note that age of puberty to rate of maturity is like comparing apples to oranges: they are two different traits, one is not affected by the other.
The average at which cattle reach puberty is about 11 to 13 months. Generally, a heifer is able to breed successfully at about 18 months. A bull can successfully breed at about the same age.

Does the cow determine the sex of the unborn calf?

No, the male decides the gender of the calf. When the semen meets the egg, if it contains a Y chromosome it is going to be a bull (male) calf because the mother will have provided the X chromosome. Whereas, if the semen that contained an X chromosome fertilized the egg then the result would be a heifer (female) calf.

What is the weight of a newborn cow?

Average is around 40 to 100 lbs, depending on the breed.

Can a women get pregnant by a cow?

Absolutely not! Women and cows are two very different species, not to mention that both women and cows are FEMALES, not one female and the other male, which makes it VERY impossible for a woman to get pregnant by a cow.

Do baby cows have teeth?

Yes. It is not uncommon for a calf to be born with a few teeth already poking above the gum-line.

What effects the delivery of calves?

The main factors that can affect the delivery of calves include the size and positioning of the calf, the age and health of the mother cow, the skill of the person assisting with the delivery, and any potential complications such as dystocia. It's important to monitor the progress of the labor closely and intervene if necessary to ensure a successful delivery.

How much can bulls weigh?

Bulls can weigh anywhere from 1,500 to 2,500 pounds, although some can weigh even more depending on the breed.

What is the breeding span of a cow?

A cow would be liable to breed for until she's over 20 years of age. On average, a cow is expected to have a breeding span of 10 to 15 years. However, the actual span depends on the breed; Brahman and Brahman-type cows tend to live longer than British or Continental cattle, and they tend to breed for longer than dairy cows.

Do beef cattle with large scrotal circumferences tend to be more fertile?

It does not necessarily mean that he is more fertile, but that he has a higher number of sperm cells being produced. However, an abnormally large scrotal circumference can be detrimental to the bull, because it can be a sign of infection of some sort which can do the exact opposite to sperm production. A bull with an average to slightly-more-than-average SC that is not showing any signs of infection of his reproductive organs is a highly fertile bull.

What happens if a cow doesn't pass the afterbirth?

Retained placentas in cows may cause complications such as metritis, which can cause a cow to become ill (feverish, lose weight) to the point that you may actually lose her. This is mainly because the placenta, which would hang out of the vulva and get sucked back in with her movements, would be exposed to a host of bacteria from the ground (when she lays down) and from the feces she expells (since the vulva is situated immediately below the anus), which gets into the uterus and creates an environment for infection.

Please see the related link below for more information.

What does a cow grow?

A cow grows by consuming food, primarily grass and grains, which provide the necessary nutrients for growth and development. Additionally, cows have a natural ability to convert these nutrients into muscle, bone, and other body tissues as they grow.

When roan color in cattle is the result of incomplete dominance between red and white color genes how would one produce a herd of pure breeding roan colored cattle?

It's simply not possible. When you breed a roan cow to a roan bull you only have a 50% chance of producing roan offspring, a 25% chance of producing white offspring and a 25% chance of producing red offspring. You have a much higher chance of producing a pure breeding red or white herd than a roan-coloured herd.

Can you use weanling to refer to a calf?

No, weanling typically refers to a young horse that has recently been weaned from its mother's milk. For calves, the term used is usually "calf" or "weaned calf" when they have been successfully transitioned from milk to solid food.

How do you give birth to a cow?

Cows give birth by going into labor and delivering the calf typically from standing position after a gestation period of around 9 months. Assistance from a veterinarian may be needed in some cases. The process should be monitored closely to ensure the safety of the cow and the calf.

What was the bull's name in The Rare Breed?

The bull's name in the movie "The Rare Breed" was Vindicator.

How long will it take for beef cattle to reach reproduction age?

Usually at the age of two, however, they will show heat cycles before then. Most farmers start breeding females timed to have the first calf at the age of two and most bulls depending on size can start to breed around 2.

What is a terminal sire?

A terminal sire is a sire that has genetics for calves that are intended to be used for slaughter instead of for breeding purposes. Terminal sires include such breeds as Simmental, Charolais, Limousin, Maine Anjou and Blonde d'Aquitaine. Terminal sires have the genetics for higher weight gains and larger weaning weights than maternal sires. Terminal sires stress for more masculine qualities (i.e., muscling) than maternal sires (milking ability, mothering ability, calving ease, etc.)

Can a woman give birth to a cow?

No, biologically speaking, it is not possible for a woman to give birth to a cow. Humans and cows belong to different species, and inter-species reproduction is not possible.

How long do cow graze everyday?

Cows typically graze for about 8-10 hours each day, spreading their feeding activity throughout the day and night. Their grazing behavior is influenced by factors such as weather, availability of forage, and individual preferences.

How much does a bull calf weigh?

Usually around 80 pounds, newborn. Healthy newborn Calves can range from 40 to 140 pounds in the extremes. Most calves heavier than about 110 pounds have trouble standing up for a few days. The average birth weight varies by breed and ranchers select the trait they want, e.g. breeding heifers to a bull that produces small calves so they have an easier time calving. This trait is called 'calving ease.'

In a cattle farm what is the average lifespan and weight of calves until they are slaughtered and cows and bulls until they are slaughtered?

Male dairy calves will be around 5 to 6 months of age before they are slaughtered, and weigh around 500 to 650 lb. Beef cattle that are raised as slaughter (and thus are no longer calves) are typically around 18 to 24 (sometimes 28) months of age when slaughtered, and reach a target finish weight of around 1400 lbs (or have a body frame score of Choice grade). As for cows and bulls, the age and weight varies greatly, depending on breed, age and reasons for them being culled. A cow or bull can be as young as 2 or as old as 20 when they are slaughtered, and can range from 1000 to 2800 lbs when slaughtered.

Some animals such as cows normally produce only one offspring from each mating If a cow showed a dominant phenotype why would a typical testcross be a difficult way to determine the genotype?

Because a cow only produces one offspring at a time, not several like mice, cats, dogs, flies or frogs do. In order to have a successful test cross, the species of animal used must have at least 10 to 20 offspring to study from.