My female Chihuahua weighs 30 lbs. Is that a healthy weight?

If you can get him down to 18 pounds, that would be a good start. Most male Chugs weigh about 15 to 18 pounds. Monitor his weight as well as his BCS (body condition score). Your veterinarian can show you how to do this. You want Duke to lose weight but not too much. He should have a nice layer of fat over his ribs. He should also have a wait when viewed from above and a gentle abdominal tuck when viewed from the side. He shouldn't look like a square or a rectangle

Chihuahuas weight varies greatly during puppyhood and there is no specific weight chart that we use in practice. Instead we use a more accurate assessment of your puppy's weight, which is his/her body condition score (BCS) where 3/5 or 5/9 is considered an ideal weight. Your vet should be able to tell what the body condition score is easily by simply examining your pet. Also in puppies, unless you see vomiting or diarrhea symptoms, and they are getting feed the proper amount 3x a day, then chances are your pet is of proper weight. Also feel free to share a photo of your pet via consultation request, and we can tell you without a doubt whether your pup is proper weight or not.

This really depends on the size and build of the dog - with mixed-breed dogs like this, genetics can be very unpredictable! :) Instead of focusing so much on how many pounds he weighs, I would recommend looking at his body condition. Ideally, you should be able to feel his ribs fairly easily when you run your hands down his sides, and he should have a visible waistline or "abdominal tuck" just behind the rib cage. If you can't feel his ribs or he doesn't have a waistline, he probably needs to lose some weight. If his ribs and hip bones are visibly sticking out, he's probably a bit too thin and should gain a bit.

Having her spayed at 4 years of age is taking a big chance health wise, she will be in high risk of mammary gland tumors. i would personally recommend having her spayed at the age of 6 months, before her first period. changes you can expect is mainly weight gain, but as long as you are on top of it she should not become obese.

You don't want Tiny to be aggressive, that's not a good trait for a dog to have, so I would consider it good that she isn't! Toy breed dogs are typically fully grown by one year of age, so no it's not a bad thing she is fully grown at three years old. Chihuahuas generally weigh between 2 and 6 pounds, so her weight is normal. i hope this helps!

Without seeing Buddy in person (who is very handsome by the way!), I can't say if he's overweight or not because he's a mix breed dog. They can really vary in weight depending on their build and genetics. Check out this link on checking the body condition score in dogs, and that will give you an idea if he's overweight or not. You can also discuss with his vet if they feel he's overweight. I hope this helps! https://www.wsava.org/WSAVA/media/Arpita-and-Emma-editorial/Body-Condition-Score-Dog.pdf

First, consider an exam with your veterinarian to diagnose any underlying medical causes. Next, you can feed a high quality performance diet to get weight on her. Once she is at weight, you can adjust the diet as needed for maintenance. You can also try a puppy diet until she is at weight.