History has reserved a special place for the Tibetan Mastiff. They are considered by many to be the basic stock from which most modern large working breeds, including all mastiffs and mountain dogs, have developed. Even though a great deal has been written about them since the 17th Century, there are few specific details available.

Earliest written accounts place a large dog around 1100 BC in China. Skulls of large dogs date from the stone and bronze ages. Ancestors of today's Mastiff breeds are believed to have accompanied the armies of the Assyrians, Persians, Greeks and Romans and later, traveled with Atilla the Hun and Genghis Khan as far west as Europe. During these centuries, it is believed that the Tibetan Mastiff remained isolated on the high plateaus and valleys of the Himalaya to develop into the magnificent animal so highly prized by the people of Tibet.

Today in Tibet, Nepal, Bhutan and other Himalayan regions, a pure Tibetan Mastiff is hard to find, though they are still bred by the nomads of the Chang-Tang plateau. They are bred and live at an average altitude of 16,000 feet, and some are brought to the Barkhor, the market that surrounds the Jokhang Temple, the holiest temple for Tibetan Buddhists, for sale. Although Tibetan Mastiffs are traditionally kept tied to the gates of the house or monastery, or tied to stakes in the nomad camps, they are let loose at night. In addition, when the flocks are moved to higher pasture, the Tibetan Mastiffs were traditionally left behind to guard the tents and the children The dogs are expected to defend the flocks of goats, sheep and yak, the women and the children and the tents of their masters against predators such as wolves and snow leopards, as well as human intruders.

Prior to the early 1800's, few Westerners were allowed into Tibet so little was known about Tibetan dogs. In accounts of visits to Tibet by early travelers, very little mention was made of the dogs they encountered. Marco Polo wrote of the dogs in Tibet being as large as donkeys, and Jesuit missionaries in the 17th Century, wrote of the ferocious, huge dogs ("Many of the Thibetan dogs are uncommon and extraordinary. They are black with rather long glossy hair, very big and sturdily built, and their bark is most alarming" I. Desideri, 1712). In 1800 Captain Samuel Turner, in his "An account of an Embassy to the Court of the Teshoo Lama in Tibet" mentioned his experience with huge dogs ("The mansion stood upon the right; on the left was a row of wooden cages, containing a number of huge dogs, tremendously fierce, strong and noisy. They were natives of Tibet; and whether savage by nature, or soured by confinement, they were so impetuously furious, that it was unsafe, unless the keepers were near, even to approach their dens.").

In 1847, Lord Hardinge, Viceroy of India, sent a "large dog from Tibet" called "Siring" to Queen Victoria. England had its first dog show in 1859; and in 1873, The Kennel Club was formed with the first Stud Book containing pedigrees of 4027 dogs. In the official classification made by The Kennel Club (England), the "large dog from Tibet" was officially designated the "Tibetan Mastiff" for the first time.

Two more Tibetan Mastiffs were brought into England in 1874 by the then Prince of Wales (later King Edward VII) and they were exhibited at the Alexandra Palace Show, December 1875. From then until 1928, there was a trickle of imports into England and Europe. In 1928, the Hon. Colonel and Mrs. Bailey imported four Tibetan Mastiffs which they obtained while Colonel Bailey was on duty as Political Officer in Sikkim, Nepal, and Tibet. In 1931 Mrs. Bailey formed the Tibetan Breeds Association in England and the first official standard for the breed was adopted by The Kennel Club. It was also the standard used by the Federation Cynologique Internationale (FCI).

In the late 1950's, two Tibetan Mastiffs were sent from Tibet to President Eisenhower. They were taken to a farm in the midwest and nothing more was heard of them. Beginning in 1969, several Tibetan Mastiffs were imported from Nepal and India into the US. The American Tibetan Mastiff Assoication was formed in 1974, with a dog imported from Nepal, Jumla's Kalu of Jumla as its dog #001. The first National Specialty Match was held in the USA in connection with the California Rare Breeds Dog Association in October 1979 and the first National Specialty Show was held in 1983.

The close relationship of the Tibetan Mastiff with man throughout the centuries has given the dog a almost uncanny "human" understanding. Generations of working as a guardian of yak, sheep and, more importantly, women and children, requiring always a protector and not a killer, has produced a disposition and temperament of controlled strength, initiative, and fearlessness, tempered with patience, loyalty, and gentleness.

I have gathered these studies to show that our practice of routinely spaying or neutering every dog at or before the age of 6 months is not a black-and-white issue. Clearly more studies need to be done to evaluate the effects of prepubertal spaying and neutering, particularly in canine athletes.

Currently, I have significant concerns with spaying or neutering canine companions before puberty. But of course, there is the pet overpopulation problem. How can we prevent the production of unwanted dogs while still leaving the gonads to produce the hormones that are so important to canine growth and development? One answer would be to perform vasectomies in males and tubal ligation in females, to be followed after maturity by ovariohysterectomy in females to prevent mammary cancer and pyometra. One possible disadvantage is that vasectomy does not prevent some unwanted behaviors associated with males such as marking and humping. On the other hand, females and neutered males frequently participate in these behaviors too. Really, training is the best solution for these issues. Another possible disadvantage is finding a veterinarian who is experienced in performing these procedures. Nonetheless, some do, and if the procedures were in greater demand, more veterinarians would learn them.