Additives used in the production of vaccines may include. 1  suspending fluid (e.g. sterile water, saline, or fluids containing protein); 2  preservatives and stabilizers to help the vaccine remain unchanged (e.g. albumin, phenols, and glycine); and. 3  adjuvants or enhancers to help the vaccine to be more effective.
The other element is a standard Yorkie that falls under or over the expected weight and/or size range. Breed standards have changed. The AKC used to list a minimum weight of 4 pounds (1.81 kg). Now, there is only a maximum weight of 7 pounds (3.17 kg) for a full grown, adult Yorkie. Even with this change on paper, most Yorkshire Terriers fit into the 3 to 7 lb. (1.36 kg to 3.17 kg) range. A dog smaller than this, fully grown, would be considered too small and may have size related health issues.
There is no such breed as a Teacup Yorkie. Many breeders will advertise their Yorkies as Teacups because they are so small that they are the size of a teacup. Yorkies that are that small are usually not very healthy.The breed standard for a full-blooded Yorkie is to weigh between 4 lbs. and 7 lbs., however, many Yorkies weigh more than that.The very small Yorkies are often diagnosed with Liver Shunt. A liver shunt is a blood vessel that carries blood around the liver instead of through it.he breed standard for a full-blooded Yorkie is to weigh between 4 lbs. and 7 lbs., however, many Yorkies weigh more than that. The very small Yorkies are often diagnosed with Liver Shunt. A liver shunt is a blood vessel that carries blood around the liver instead of through it.