Line breeding in horses. Do's & don'ts?

[Ranchero]

Thank you all for the input to my original post. If I did breed the combintions stated in my original post, could the foals be registered with the AQHA? Also, one of the reasons I am considering line breeding is my limited availability of registered stud horses in my area.

[Oldtimer]

[Brad S]

Ranchero, as you may have gathered, line breeding is a tool saved for breed evaluation on a long term basis. I had a line bred son of 2 eyed Jack - 2EJ was as complete a horse as ever raised, but he couldn't stand up to line breeding. I can't remember where in the pedigree, but as I remember, Walter Merrick used line breeding in the jet deck line so you may be a little safer.

The AQHA allows seman be shipped and registered, so don't sweat your location.


With Easy Jet mares, I'd call Dwight Krebs in western Ks and talk him out of a couple Flying X 6 breedings - do a search on Krebs or x6. Krebs has a web site.

[PPRM]

Ok,

my two cents

Don't do it. It is in breeding pure and simple. How come HYPP became a problem???? two recessive genes. Say what you want, it will bite you in the butt sooner or later,


I think the breed organizations should ban registering of these horses,

like I said, my two cents,

PPRM

[OldDog/NewTricks]

I Tend To Agree with you (for the average Breeder or Hobbie Breeder)

HYPP may not have developed if the orginal breeder(s) would have had the intestinal fordatude(sp) or put voice to do what was/is called for.

To this date most horse owners do not understand it - miss treat it - and pass it on - with out giving voice to it.

Equitable Breeders will "do what it takes to stop it!" something that should have been done years ago.

I'd rather Die with Respect than $$$$$

[OldDog/NewTricks]

The answer before it's asked
What is HYPP?

http://www.google.com/search?client=safari&rls=en&q=What+is+HYPP&ie=UTF-8&oe=UTF-8

[OldDog/NewTricks]

In the Feed Store 3 weeks ago "A Breeder" was trlling every one his horse could not eat "corn" because his horse had HYPP

Please Test your horse and don't breed anything that Teat +
==========================================
Sharon J. Spier, D.V.M., Ph.D. University of California at Davis School of Veterinary Medicine, Department of Medicine

If your horse has been tested and is positive for the mutation causing HYPP, and has not shown any abnormal clinical signs, do not change anything in your current management. If your horse does show any problems, you will probably want to know how to best manage an episode of muscle tremors or paralysis and how to prevent these episodes from occurring again.

The following lists are emergency treatments for HYPP.

Treatments that are effective include the following for an acute attack:

For a mild episode (muscle tremors, horse not down)

Exercise horse (walking or longeing) - Use caution as the horse could stumble and fall. Exercise stimulates adrenalin which helps replace potassium inside cells.
Feed grain (oats, or ""corn""-oats-barley (dry), or you can use light Karo syrup for a glucose supplement). Feeding carbohydrates supplies glucose which stimulates the release of insulin which promotes potassium uptake by cells.
Give acetazolamide orally (3 mg/kg). This is usually 6 to 8 tablets if the tablets are 250 mg each. Acetazolamide increases potassium excretion from the kidney and also affects glucose metabolism.
For a severe attack, immediate veterinary attention is necessary. If the horse is down and unable to stand, have your veterinarian:
Place IV catheter and administer 23% Calcium gluconate (150 cc in 1-2 liters of 5% glucose / 500 kg horse). The majority of horses respond immediately to this and stand up.
If no response, follow with 1 L 5% sodium bicarbonate intravenously. (Dose is 1 meq/kg).
Still no response, give 3 L 5% dextrose IV, and monitor potassium levels in blood.
All these treatments help to stabilize the muscle membranes and lower blood potassium.
It is best to have the veterinarian draw blood prior to initiation of treatment and analyze the blood potassium and muscle enzyme concentrations. This can be helpful to confirm that the horse was suffering an attack of HYPP and not something else (like colic, for instance).

For control of episodes:

Regular feeding and exercise schedule. Avoid fasting or water deprivation. These horses do better if allowed access to a paddock or pasture rather than strict stall confinement. Daily or nightly turnout is helpful.
Mix alfalfa with grass hay or oat hay and grain (oats best) to decrease potassium content of diet. Many owners report that their horses do very well on grass hay alone or pasture. Feed equal amounts of hay and grain two to three times daily. Avoid rapid changes in diet.
Acetazolamide (Diamox) - a diuretic - (2 mg/kg orally twice a day). Many halter-horse owners continue to feed alfalfa hay as the only roughage but maintain their horses on this drug for all or most of their life. This drug is a forbidden substance as ruled by the AQHA and AHSA

It has come to my attention that acetazolamide is not always available from human pharmacies. Another drug which has been used is hydrochlorthiazide at a dosage of 0.5 mg/kg twice a day by mouth.
Inform your veterinarian of condition prior to any general anesthesia as this may precipitate an episode of paralysis. If your horse is receiving medication, maintain them on therapy before and after surgery or anesthesia.
Use common sense while hauling, be sure to stop and water the horses frequently (every 2 hours).
Many horses with this trait are asymptomatic and have very successful careers. Most horses can be managed easily with good care and can still bring great pleasure to their owners. Please put this condition into perspective with regard to many of the other conditions that our horses can have.
HYPP Form

Please Note: Effective 7/1/99 the fee for HYPP testing will be $50 @ horse

[OldDog/NewTricks]

I don't underrstand this part