Is Live Feeding Cruel or Illegal? What Vets and the Law Say

Is live feeding cruel? Many vets and vet groups oppose it. They warn that a live rat can bite and hurt a snake, and the rat has no way out. Is it illegal? In Arizona, we found no law that bans feeding live rodents to snakes. But Arizona's cruelty law still covers how you treat both animals.

So we found no ban here, but it's a choice with real risks. If you feed live, do it with care.

This article is general information, not legal advice. Laws change. For your own situation, talk to an Arizona lawyer.

The short answer

Here's the plain version:

• Arizona law: We found no state or Pima County rule that bans live feeding. The state cruelty law covers snakes and rats, but it doesn't mention feeding one to the other.
• Other countries: Parts of Australia are stricter. In the UK it isn't banned outright, but a court can decide it caused unnecessary suffering.
• Vets: Many vets and vet groups say to feed prey that's already dead. Their main worry is bites to the snake.
• Is live feeding snakes bad for them? The main risk is a bite from the rat. Right size and close watching cut that risk. They don't remove it.
• Your choice: Frozen-thawed is a great option. If your snake won't take it, we found no Arizona law that bans live feeding with care. For the full side-by-side, see Live vs Frozen Rats for Snakes.

A quick note on where we stand. Mike's Rodents sells live feeder rats in the Tucson area, so we've got a stake in this question. We'll give you the facts anyway, including the ones that favor frozen.

Is live feeding illegal in Arizona?

No Arizona law we found bans it. Here's what the law does say.

Arizona's animal cruelty law is A.R.S. 13-2910. It defines an animal as "a mammal, bird, reptile or amphibian." So it covers your snake. It also covers the rat.

The law lists acts that count as cruelty. A few of them:

• Neglecting an animal in your care
• Causing an animal "unnecessary physical injury"
• Cruel mistreatment
• Leaving an animal shut in a car when injury or death is likely

The law doesn't mention feeding live animals to other animals. We also checked Pima County and Town of Marana rules and found nothing that bans or allows live feeding.

One more detail matters. The state law lets cities, towns and counties pass rules at least as strict as its own (subsection F). So if you live in a city or town, check its rules too.

Tucson is one example. Its cruelty rule, Tucson City Code 4-3, bans anyone who "tortures, torments" an animal or "inflicts unnecessary cruelty upon it." It doesn't mention live feeding either. We didn't review every city and town code.

What does that mean for you?

Live feeding isn't named in the law. But the law still asks how you treat animals in your care. We can't tell you how a court would see any one case. What we can say is that careless feeding is never a good idea. Stay with your snake. Use the right size. Don't leave a rat in the enclosure.

Rules in other US states vary. This article covers Arizona only.

Is live feeding illegal in the UK or Australia?

Live feeding laws differ around the world, and some places are much stricter.

Why are some countries stricter?

The reason is welfare, for both animals. The Australian Veterinary Association says live mammals fed to snakes are a welfare problem for "both the prey and snake." It says caged rodents "have no means of escape." It adds that they often "bite snakes repeatedly." In 2008 the group said it "strongly opposed" the practice (AVA policy).

What do vets say about live feeding?

Most vet advice points the same way: feed prey that's already dead.

• VCA Animal Hospitals says, "Do not feed snakes live prey, because the prey may bite the snake before they are eaten." It warns that "even a small bite from a mouse" can lead to a severe infection (VCA).
• The University of Illinois vet school says rodent bites can harm a snake's eyes, mouth and spine. Its article says exotic pet vets recommend "feeding killed prey to all snakes" (Illinois Vet Med, 2017).
• RSPCA Australia says live prey "should only ever be considered when a reptile will not accept pre-killed prey" (RSPCA Australia).

What about nutrition? The Illinois article says live prey isn't healthier. The snake gets "the same nutrition" either way.

Want to see how a rat can hurt a snake, and how to stop it? Read Can a Rat Kill a Snake?

Is frozen kinder?

For most keepers, frozen-thawed is the gentler choice. There's no fight, so there's no bite risk to your snake. That's why vets prefer it.

Feed frozen? Good. Keep doing what works.

Many snakes can switch. The Illinois article says snakes can move from live to pre-killed prey at any age. A snake that has eaten live for years may need more time.

If your snake keeps refusing frozen, read Ball Python Won't Eat Frozen-Thawed? Cost, convenience and safety are compared in Live vs Frozen Rats for Snakes.

When does live feeding make sense?

Some snakes won't take pre-killed food, even after a keeper tries for a while. RSPCA Australia is firmly against live feeding. Even so, it leaves room for live prey when a reptile won't accept pre-killed food and would otherwise starve.

Other keepers don't want a freezer full of rats. In Arizona, we found no law against that choice. What matters most is how you do it.

If you feed live: the minimum standard

If you feed live, hold yourself to this list every time.

1. Pick the right size. Many keepers aim for a rat about 10% of the snake's weight. A rat that's too big can hurt a snake. Use the feeder size guide to match grams to your snake.
2. Stay and watch. Never leave a live rat alone with your snake. Not for a minute.
3. Take out an uneaten rat. If your snake isn't interested, remove the rat and try another day. VCA says never leave prey in the cage longer than two hours. Don't wait that long.
4. Check your snake after. Look for bites around the head and body. Call a reptile vet about any wound.
5. Care for the rat until feeding day. Give it food, water and a cool room. Lab guides keep rats at 68 to 79°F (UCLA). See How Long Do Feeder Rats Live?
6. Never leave a rat or snake in a hot car. That one is in the state cruelty law. See Feeding Snakes in Tucson's Summer Heat.

For the full step-by-step, read How to Feed Live Rats to Snakes Safely.

Not sure which size fits? Call or text Mike at (520) 451-4380 with your snake's weight. He replies the same day.

Questions? Ask Mike

Mike breeds live feeder rats and mice in the Tucson area. He'll tell you straight what size fits your snake. And if your snake does fine on frozen, he'll tell you to stick with it.

Call or text Mike at (520) 451-4380. Want a heads-up when a new batch is ready? Get batch alerts.