Horse in Science[Taxonomy |
Chromosomes |
Metaphase spreads |
Karyotypes | Animalia Chordata Vertebrata Mammalia Perissodactyla Equidae Equus caballus Taxonomya scientific system of orderly classification of plants and animals according to their presumed natural relationships
About chromosomes.....
To create a photograph of horse chromosomes.....
Below are photographs, as seen through the light microscope, of one cell's chromosomes from each of two Thoroughbred horses: Sunny and Lawdy.
A karyotype is the name for the entire set of photographed chromosomes, cut up and arranged in pairs.
A karyotype is also the name for a cartoon illustration of the chromosomes which is used by scientists in their genetic reports. Also visit
The average adult stallion or gelding (5 years) has 40-44 teeth, average female 36-40. Mares normally do not develop canines (or tushes). Vestigial wolf teeth are more likely found in the upper jaw but can develop in either. Wolf teeth occasionally need to be removed if they don't fully erupt and naturally fall out on their own. Learn more in an HC Interactive Quiz Equine Dentistry4 images from Michigan State University's College of Veterinary Medicine
Use your brower's back button to return to this page. View Radiographs (x-rays).....These "rad" .gifs appear thanks to David Barbee, Washington State University Veterinary School.
The Case of an 8 year old Involved in a Bar(n) Brawl
rec.equestrian, Terry von Gease, sent this case history of an ethmoid hematoma, an object that bears every resemblance to an oyster from another world, that plagued one of my horses all last year and produced some spectacular bleeding. This is just one of many little surprises that can live up a horses snout and, in the process of killing them, suck every nickel out of your jeans." This is, or was at the time, an 8 year old paint horse that started a chronic bleeding in his left nostril around January 1995. It wasn't more than the odd trickle of blood to start and it didn't seem to be affected by work or anything else and he had no other symptoms of anything, so we sat on it for a while to see just what might come of it. Figured it might have been a blow when he was out carousing with the other horses. Or a bar fight. Then the bleeding stepped up the pace around the end of March, 1995, so we figured it might be prudent to pull him up to UC Davis and let them have a squint at him. The first picture, nose1.jpeg dated 04/05/95 was taken on that occasion. We decided to treat it by injecting the thing with formalin to pickle it rather than elect for surgery which not only is a royal pain in that region, but also has a recurrence rate about the same as just shooting it up. The official prognostication was three to six treatments to clear it up. Since UC Davis is about 140 miles from the home I was somewhat less than pleased with the prospect, but the stick and ball (Polocrosse) season was starting and at least I could play him while all of this was going on. It ended up taking twelve treatments to get the thing tidied up as seen in nose2.jpeg dated 08/07/95, and by that time the horse had so much formaldehyde in him that if he were to expire, he'd probably be preserved forever. So about 3400 miles and $1500 later it seemed to be under control. Then along about January 1996 he fired an incredible amount of the nastiest, bloodiest stuff, that you'd go a long way to avoid, out of the subject nostril so I pulled him back to Davis for a recheck as seen in nose3.jpeg dated 01/08/96. They scoped everywhere and found no particular reason for the discharge. The big lump in the middle is just scar tissue from the original event but it looked healthy enough. You can see a big red (mucus) forming at about 2:00 but the general consensus was that he might have had an abscess hiding somewhere that finally ruptured or some other passing thing. Since that time all has been well. The horse tends to more mucus in the left side. Perhaps it's due to the change in the geometry of the region. Who knows. What I do know it the entire episode was less than satisfying. Jump to equine veterinary info and resources...
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