At what age can a heifer become pregnant?

Usually it’s best to wait until they are at least 15 months of age before breeding. Even though the early maturing breeds do reach puberty by the time they are around 7 to 9 months of age, it is best to wait until they are around 13 to 15 months of age before you can breed them.

Can a 6 month old heifer get pregnant?

An immature rumen cannot properly digest grass. After weaning we recommend that you separate the bull calves from the heifers; she can become pregnant after 5-6 months of age.

What is the youngest age a heifer can get pregnant?

This requires that heifers become pregnant for the first time at 12 to 15 months of age assuming a gestation period of slightly less than 9.5 months (280 to 285 days) and accounting for more than 2 months variation in the birth date of heifers selected to serve as replace- ments.

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At what age are heifers first mated?

The age at which beef heifers should be first mated depends upon the economics of management input against returns. Well grown British breed heifers can be mated as early as 15 months to calve at 24 months, but require extra managerial effort if good results are to be obtained.

Can a 9 month old heifer be bred?

Usually it’s best to wait until they are at least 15 months of age before breeding. Even though the early maturing breeds do reach puberty by the time they are around 7 to 9 months of age, it is best to wait until they are around 13 to 15 months of age before you can breed them.

How can you tell if a heifer is pregnant?

Pregnancy status, fetal sex, ovarian function and uterine morphology are assessed with ultrasound. It is possible to detect fetal heartbeat in cattle with ultrasound at approximately day 21 of pregnancy, but it is more easily detected after day 25.

How can you tell when a heifer is in heat?

Recognizing signs of heat

  1. Standing to be mounted. …
  2. Mounting other cows. …
  3. Mucus discharge. …
  4. Swelling and reddening of the vulva. …
  5. Bellowing, restlessness and trailing. …
  6. Rubbed tailhead hair and dirty flanks. …
  7. Chin resting and back rubbing. …
  8. Sniffing and licking.

What age can a heifer get in calf?

Well-grown heifers will come into puberty early and cycle 2-3 times before they need to be inseminated, which, to achieve the target of an average age at first calving of 24 months, should be 14 months of age. Calving at 24 months of age has huge benefits in terms of subsequent fertility, longevity, and productivity.

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How long does a heifer stay in heat?

The average duration of standing heat is 15 to 18 hours, but heat duration may vary from 8 to 30 hours among cows. An estrous cow usually stands to be mounted 20 to 55 times during her estrous period. Each mount lasts three to seven seconds. Factors that affect expression of heat are discussed in a later section.

What to give heifers before breeding?

First, replacement heifers should be given pre-breeding vaccinations at least 30 days prior to breeding to protect them from infectious reproductive diseases, such as leptospirosis, IBR, and BVDV.

Why is second breeding of heifers difficult?

The heifer will not cycle again until blood energy levels are high enough to meet all her requirements. “Low blood energy, as a result of poor body condition at calving, generally is the cause of re- breeding failure,” Evans concludes. … Therefore, many heifers go into the breeding season with reduced intakes.

At what age do bull calves become fertile?

Puberty in bulls occurs when they can produce viable sperm. This happens at approximately 12 months of age, though it can vary in individual bulls several months before or after this age depending on biological type (primarily frame size and potential mature weight), nutrition, and health status.

What age can you breed a Jersey heifer?

The data support a target age of 21-22 months for Holsteins and Brown Swiss to deliver their first calves and 20-21 months for Jerseys. However, breeding at ages younger than 11-13 months is not recommended because younger heifers are more likely to have stillborn calves.

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Can a bull breed at 6 months?

Puberty. When bulls reach puberty depends on breed and body weight. Bulls are considered to have reached sexual maturity when their ejaculate contains at least 50 million sperm with a 10 percent motility rate. … Overall, bulls reach puberty between the ages of 9 and 10 months.

How soon can a cow get bred after having a calf?

It takes at least 30 days after calving for a cow’s reproductive tract to return to normal. Therefore, some cows can be bred starting 45-60 days after calving. Your veterinarian should palpate the reproductive tract of each cow as soon after 30 days after calving as possible to make sure the cow is ready to breed.