How many straws do you use per breeding in cattle?

Then it's just a simple rule of thumb – allow six straws for every replacement heifer. For example, a 400 cow herd with a 25% replacement rate, will need 100 heifer replacements every year, so 600 AI straws should be ordered to maintain the herd size.

1. How many straws does it take to impregnate a cow?
2. How many straws can a Angus bull produce?
3. How much is a straw of bull sperm?
4. How much sperm is in a straw?
5. How much does it cost to have a cow AI?
6. How soon can you AI a cow after calving?
7. What is the price of a Black Angus calf?
8. How much can you sell bull sperm for?
9. How big can a black Angus bull get?
10. How many straws can a bull produce per year?
11. How many straws does it take to breed a mare?
12. What is the best time to AI a cow?
13. What is the success rate of artificial insemination in cattle?
14. How successful is artificial insemination in cattle?
15. How do you bring a heifer into heat?
16. How many times will a bull breed a cow in heat?
17. Will a bull mate with the same cow twice?

How many straws does it take to impregnate a cow?

Despite the data, he says producers often tell him to thaw just two straws when breeding cows in their herd, in an effort to increase conception rates.

How many straws can a Angus bull produce?

“Some of them can produce 20,000 straws a year,” Murnin said of high quality production bulls. “Some of them can produce 50,000 a year.

How much is a straw of bull sperm?

The cost for the semen is typically $16 per straw. The cost for the synchronization protocol drugs is about $14 per cow. That's $30 total.

How much sperm is in a straw?

A single 0.5-ml straw of semen frozen will usually contain a minimum of 50 to 60 million motile sperm. Low-dose insemination techniques using 5 to 25 million progressively motile sperm have been reported to achieve a 40 to 50% pregnancy rate.

How much does it cost to have a cow AI?

Couple that with the cost of a technician to inseminate the cows ($6 per cow) and frozen semen from a good beef bull with a proven record of quality offspring ($18 per cow). That's $36 total per cow inseminated. At 60% to 65% conception, the AI program costs $55 to $60 per calf born – about 20% less than the bull.

How soon can you AI a cow after calving?

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.

What is the price of a Black Angus calf?

For a beef cow, CWT is between $135 and $165. It is an average of $140 per 100 pounds. A calf that weighs 500 pounds costs around $700. As compared to a heifer, bred heifer costs more.

How much can you sell bull sperm for?

Elation demand

While most Angus semen fetches $20 to $25 per sample (also called a straw), Elation's semen is selling for $50. Bell said they already have a waiting list from cattle ranchers across the world.

How big can a black Angus bull get?

Big and hearty

Most Black Angus cattle are medium to large, naturally polled with large muscle content. Average body weight for bulls is about 1,870 pounds, while cows weigh in at 1,200.

How many straws can a bull produce per year?

Bull Semen Collection and Processing

An average ejaculate may contain 1 billion sperm which are then diluted with an extender (made from a base of whole milk or egg yolk) and stored in 1/2cc straws for freezing. An average Holstein bull can produce 80,000 to 110,000 straws of semen annually.

How many straws does it take to breed a mare?

We suggest at least two doses per mare, when using one dose per cycle. (If you were breeding your mare live-cover, how many cycles would you give her?) When using the timed insemination protocol splitting an eight-straw dose and using four straws with each of the two inseminations per cycle is acceptable.

What is the best time to AI a cow?

The best time for artificial insemination occurs in the last part of heat. It is therefore recommended that cows observed to be on heat in the morning are inseminated in the afternoon and cows detected on heat in the afternoon be inseminated on the morning of the following day.

What is the success rate of artificial insemination in cattle?

On average, cows were inseminated for the first time at 96 DIM of a lactation and the average insemination success was 42.8%.

How successful is artificial insemination in cattle?

On average between 50%-70% of a herd will conceive to a single timed insemination. This is pretty similar to the percent of cows a bull will breed on a single cycle. Most herds employ a "clean-up bull" to breed the remaining open cows on the following 2-3 cycles.

How do you bring a heifer into heat?

The injection of prostaglandin causes any cows with a corpus luteum present on one of their ovaries to regress, ceasing progesterone production. This then triggers the cows to come into heat/estrus.

How many times will a bull breed a cow in heat?

Therefore, a 15-month-old bull should be able to service approximately 15 cows in a typical 60-day breeding season.

Will a bull mate with the same cow twice?

All this is based on the shocking scientific discovery that a bull will never mate with the same cow twice. ... Once copulated with, goes the theory, a New Cow becomes an Old Cow, and a bull would rather end up on a bun at McDonald's than touch her again.