Stallions Flashcards
(46 cards)
Why is a stallion typically selected
Based on records in their discipline and genetics
Not really fertility
Why do stallions influence the breed as a whole
They sire multiple foals per year
What is S&N
Standing and nursing which means as long as the foal stands and nurses the stallions breeders are no longer liable
What are drawbacks to farm owned stallions
Stallions purchase and promotions are costly
Special facilities and expert handling is required
Outside mares require additional facilities and labor
What is always necessary in a leasing situation
Contract between lessor and lessee
What is a situation in which it is more economically beneficial to have an outside stallion rather than owning one
When breeding only a few mares
Why do mares need to be approved for breeding
To ensure she is worth breeding to the stallion
What parts of the contract do mare owners need to understand
Live foal guarantee
Special color guarantee
Other guarantees
What is LFSN
Love foal stand nurse which means as long as the foal does this the contract is over
What is stallion syndication
A designated number of shares are sold and usually the shareholder is guaranteed a certain number of breedings to the stallion
Usually happens when the stallion is worth a lot and occurs before breeding season
Considered sophisticated contracts due to financial and tax consequences
True or false: any horse is able to be syndicated
True
What is an important aspect of stallion management
Providing social contact between stallions
Understanding reproductive physiology like examinations, semen evaluation, and medical history
What is the year end pregnancy rate
Number of mares pregnant at the end of the breeding season divided by total number of mares
Most breeders try for 85-90 percent to be pregnant at the end of the season
What are the three parameters that indicate stallion fertility
Cycles per pregnancy
First cycle pregnancy rate
Pregnancy rates per cycle
How much do stallion numbers drop in the winter
50-60 percent
What is a cycle per pregnancy
Number of cycles a mare is bred before she becomes pregnant
A value under two cycles is acceptable
What is first cycle pregnancy
Percentage of mares bred that become pregnant on the first cycle of the season
Acceptable rate is 65-70 percent
What is the pregnancy rate per cycle
Pregnancy rate for all cycles combined
Determined by dividing number of pregnancies by total number of cycles the mares are bred
Acceptable value is between 60-65 percent and
What might cause low pregnancy rates
Overuse
Too many subfertile mares
Poor management
Stallion infertility j
What is a BSE
Breeding soundness exam where you collect reproductive and health history
Perform physical exam using palpation and ultrasound
Collect 2 ejaculated one hour apart to evaluate semen
What are trends we want to see in semen collection
High motility and strong structure
High concentration and total sperm count
Increased longevity if sperm
Volume will be dependent on season and sexual preparation but that is not a main component in ejaculation
What is the relationship between volume and concentration
As volume increases concentration decrease and visa versa
Not really concerned with volume though
Why is it important to check the testicles in a BSE
If healthy they will produce more sperm
If damaged they will affect sperm count
What should you do if shipping semen
Add extenders and evaluate motility over 48-72 hours
