Rattlesnake bites are very toxic, and can be toxic enough to kill a cow. If that cow has a calf at her side, you will have an orphan calf to deal with. If she's pregnant, then the fetus dies with her.
However, if the cow lives and instead develops a serious infection, this could cause her to abort the fetus inside her, and even kill the fetus. As for the calf at her side, milk quality and quantity will be affected. Infections are serious, and tend to reduce milk quality and quantity, and leave with a very hungry calf that cannot suckle from his momma. Usually rattler bites are so serious that the cow has to be put down eventually, and the calf needs to be cared for and/or put on a surrogate cow.
Rattlesnakes, which fall under the category of venemous snakes (being pit vipers) can kill a cow within the first 2 hours of being bitten, depending on the size and age of the animal. If the animal doesn't die within the first couple hours, in the next 24 hrs, if the untreated animal doesn't show any signs of shock or depression, then it's likely the animal will live longer. In the third stage (~10 days), anaerobic infection is a concern, where necrosis, if it hasn't already occurred at and around the bite site, and sloughing off of skin and tissue may be so extensive it may terminate the use of that entire limb.
Please see the Merck Veterinary Manual link on snakebites for more detailed information in the related links below.
no because they are immune to their own venom
With shots of antivenin, mainly Crofab, specially formulated for rattler bites.
figure it out yourself losers
Native Americans used rattlesnake weed to help snake bites.
It hurts when it bites, and it burns when the venom goes in.
If you get bit by one you were dead....... for sure.
It means get medical attention immediately.
Most bites can be cured with antivenin treatment.
one
* Mourn the rabbit * congraduate the snake on his frugalness
There is a rattlesnake vaccine available for dogs. It was approved by the USDA in 2004. The initial vaccine should be given in at least two doses about 30 days apart. The vaccine has been reported to both delay the effects and reduce the severity of rattlesnake bites and help dogs survive and recover more quickly with less pain and swelling. It is always recommended that a rattlesnake bite be treated as a veterinary emergency-even in a vaccinated dog. Once vaccinated for rattlesnake bites, the dog would need yearly booster shots. The above is spot on. It will also provide some protection from closely related rattlesnake cousins. It does not provide protection against Water Moccasin (Cottonmouth), Mojave Rattlesnake or Coral Snake, if memory serves. If you can, ID the snake; it is a veterinary emergency, and anti-venoms are available if you know the type that bit your dog. Get to your Vet ASAP.
Possibly nothing, but you should have a vet check him for bites or exposure to venom.