Border Collies are generally considered adults by the time they reach one year old. However, their physical growth and body shape largely stabilize between 8 to 10 months of age. After this period, significant changes in size are unlikely.
The period from 3 to 10 months is a rapid growth phase for Border Collies, with their skeletal structure setting in around 8-10 months. After the initial rapid growth, they enter a slower growth phase. During this rapid growth period, it’s essential to feed your puppy small, frequent meals on a consistent schedule, which can also help establish regular bowel movements. It is also beneficial to supplement their diet with trace elements, calcium, and coat-enhancing supplements to support their healthy development and achieve an ideal physique. Note that female Border Collies typically have smaller frames than their male counterparts. The growth rate is a key factor in the dog's overall health and development.
Mature Border Collies generally experience less shedding, especially after their first two shedding periods. A full-grown Border Collie usually stands between 46 to 54 centimeters tall. Around the third week of a puppy's life, it’s vital to administer deworming medication to ensure healthy development. When puppies begin teething, they tend to chew on things frequently, so providing soft bones can be a good solution. However, feeding should be carefully monitored to avoid overeating. Border Collies have good appetites but are not very tolerant of overfeeding, which can upset their digestive system. Consistent and careful feeding is vital for a healthy puppy.
From eight to fifteen months, a Border Collie’s confidence increases, and they develop a better understanding of their surroundings. By this stage they will have the physical maturity and understanding to start their working lives and be more adept at handling livestock. Patience is key during this stage; rushing the training process will be counterproductive. With time and patience, your Border Collie will mature into a well-trained and reliable companion. It is important to be consistent in their training and understand that like humans, dogs learn at different rates, so patience is very important. The key is to be consistent, and your Border Collie will eventually be ready to work.