Avoid buying the largest or smallest puppy in the litter. Instead, look at the size of the litter; in general, the more puppies in the litter, the healthier they will be. Take your new puppy to the vet for a “pre-purchase exam” as soon as possible. Even though you've already paid the landlord, this is called a “pre-purchase” because most reputable breeders and adoption organizations allow a probationary period (often 72 hours) before the deal is finalized.
It's a good idea to schedule an appointment with the vet the same day you pick up your puppy to quickly identify any existing problems. Yes, the biggest puppy in the litter is usually the fastest dog and the fattest is the greediest. Usually, such a puppy will have dominant tendencies. Puppy traits come to light eight weeks after birth when they start playing with other puppies and competing for food.
If they are about the same size, cubs generally end up around the size of their mother and males generally end up closer to the size of the male father. Typically, the litter size of a beagle mother remains constant, and the largest litter size is 15 puppies. Size should not be a major consideration in selection; with proper care, puppies in a litter generally catch up with size in two years. According to the Guinness World Record, the Neapolitan Mastiff is the breed that has delivered the maximum number of puppies in a single litter.
There really is no such thing as “choosing from the litter” because the best “choice” will be based on the home and the circumstances the puppy goes to. There are few things more fun than sitting in the middle of a litter of puppies and soaking up the cuteness. Rottweilers can have a litter size of 6 to 10 puppies on average; larger litters of the breed are expected. The largest puppy tends to control the food supply, becomes the fattest and often ends up consuming more of the nutrition than their peers.
So to answer the question, YES, it is OK to pick up the smallest of the litter as long as they have passed the necessary health checks and the breeder has provided them with the necessary care after birth. Usually, Dachshund mothers can have 1 to 5 puppies in a litter; you may expect more puppies depending on the size of the mother. In fact, that puppy can be a bit of a tyrant, controlling your body and blocking access to it for other puppies. A golden retriever mother can have a litter with 4 to 7 puppies, and the largest litter is 12 puppies.