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.
Can a one year old bull breed?
Overall, bulls reach puberty between the ages of 9 and 10 months. About three weeks before reaching puberty, male calves begin showing interest in the opposite sex. However, just because the bull is capable of breeding before reaching his first birthday doesn’t mean it’s a good idea.
Can a yearling bull breed cows?
The accepted rule of thumb is that a bull can breed one cow per month of age. During the first breeding season with a yearling bull, observe the herd at least daily to determine if the bull is following, mounting and servicing cows in heat.
At what age can a bull calf breed a cow?
A: Breeding should occur when the heifer reaches puberty. Puberty is a function of breed, age, and weight. Most heifers will reach puberty and be bred by 12 to 14 months of age and will be between 55% and 65% of their mature weight when they first begin to exhibit estrous cycles.
How many cows can a 14 month old bull breed?
For example, a yearling bull 14 months old could be run with about 14 females. A three year old bull could be run with up to 36 females. Depending again on conditions, 40-50 is the maximum number of females a top performing mature bull should be exposed to at one time.
Can you breed a bull with his daughters?
You can have father-daughter matings in beef cattle, but it is not recommended. This type of breeding practice is called inbreeding or close breeding. … With that being said, mating half-siblings should not result in defective calves, unless major genetic defects are found in both parents.
How many cows can a 15 month old bull breed?
One rule of thumb is that a bull can service about as many cows as his age in months. Therefore, a 15-month-old bull should be able to service approximately 15 cows in a typical 60-day breeding season.
Can a 7 month old bull breed a cow?
Yes, a bull that young can breed a heifer.
Do bulls mate with the same cow twice?
There is an assumption that goes by the appellation “The Old Cow Theory”. … But when another cow was brought to the bull, he gladly mated with the new cow. The Old Cow Theory, therefore, states that a bull will mate only once, never twice with the same cow.
How many cows can a 18 month old bull breed?
In single-sire situations, young bulls can normally breed a number of females about equal to their age in months. Thus, a newly purchased, 18-month-old bull could be placed with 18 cows or heifers. Bulls used together in multiple-sire breeding pastures should be of similar age and size.
Can you leave a bull with cows year round?
The good news is: It is possible to leave bulls with the cows year-round and still maintain a calving season of three months or less.
How long do you leave a bull in with cows?
Subject: Re: How long do you leave your bulls in? Same here 60/75 give or take 2-3 days. 60 days exposure gives us close to 70 days of the cows calving and that is a huge difference between the calf that is 70 days older than the youngest @ weaning. 80%+ calve in 30 days so those last ones are killing your weights.
How can you tell how old a bull is?
The following is a guide:
- 12 months – All the calf teeth are in place.
- 15 months – Centre permanent incisors appear.
- 18 months – Centre permanent incisors showing some wear.
- 24 months – First intermediates up.
- 30 months – Six broad incisors up.
- 36 months – Six broad incisors showing wear.
- 39 months – Corner teeth up.
At what age does a cow get pregnant?
Heifers are usually mated at either 15 or 27 months to calve down for the first time at 2 or 3 years respectively. As a rule of thumb, heifers should first be mated when they weigh at least 60% of mature mass.
How much should a 18 month old Angus bull weigh?
Average Calf Weights by age (Holstein, Jersey, Brown Swiss)
|Age||Holstein (weight in lbs)||Jersey (weight in lbs)|
How many times does a bull mate with a cow?
Because only a few cows come on heat at a time, one bull can mate with more cows in a year. The average is two bulls per 100 cows. A bull will mate with a cow as soon as she comes on heat after calving. A bull will mate with a heifer as soon as she is heavy enough and comes on heat.