i have no clue
The sac should follow the birth of each puppy so you need to be counting them.
A Chihuahua typically gives birth to a puppy within 1-4 hours after the start of labor. If labor lasts longer than 4 hours without a puppy being born, it is recommended to seek veterinary assistance as there may be complications.
As much as they need
It is difficult to tell you exactly what your chocolate lab puppy should weigh because each puppy is built differently. On average, puppies weigh a single pound at birth and gain 2 pounds per week. Following that formula, your puppy should weigh between 18 and 20 pounds.
It will depend on the number of puppies in the litter- the more puppies, the smaller each puppy. They typically weigh ABOUT 16 ounces (one pound) at birth.
Identify each shape
It is different with each dog. Ask a vet, or an experianced breeder.
A puppy eats a lot of food. From birth up to six months of age, he'll need to eat two to four times as much as an adult dog to support all that growth. A good rule of thumb (paw?) is that after his first week of life, when his weight doubles from what it was at birth, a puppy should gain one to two grams per pound of anticipated adult weight each day. This means that if your German Shepherd puppy weighs 75 pounds as an adult, he should gain three to five ounces per day as a puppy.for more information about feeding a pup:http://dogtime.com/feeding-puppies.html
There is normally no more than half an hour between each puppy. Quite often less than this. WIth a mother normally never giving birth to more than 12 puppies, so six hours or so would be the maximum time but in most cases it would be quicker than this.
In a model of a molecule, different colors are used to identify each element.
This is called a singleton puppy. It is not unusual for a dog to give birth to one puppy, but it is uncommon. The average litter is about six puppies, but some dogs may have more or less.Singleton puppies lack the companionship of literates, so they often grow up confused about their position in the "pack", may be over-playful because of the lack of playmates it had as a puppy and may be a little snappy because it didn't have siblings to test its "strength" on (which is a perfectly normal thing for puppies to do).This behaviour is not the fault of the puppy. You can try to find a sibling for the singleton puppy by adopting a stray puppy.
A puppy eats a lot of food. From birth up to six months of age, he'll need to eat two to four times as much as an adult dog to support all that growth. A good rule of thumb (paw?) is that after his first week of life, when his weight doubles from what it was at birth, a puppy should gain one to two grams per pound of anticipated adult weight each day. This means that if your German Shepherd puppy weighs 75 pounds as an adult, he should gain three to five ounces per day as a puppy.for more information about feeding a pup:http://dogtime.com/feeding-puppies.html