Until a very recent period, dog worms were thought to be of a spontaneous origin, brought about by the influence of heat upon decaying vegetable matter, and it was and still is freely asserted that puppies are born with dog worms inherited from the mother in some mysterious manner while still in uterus. This has been conclusively proven an error and in the minds of all scientists there is no question about dog worms springing from individual eggs and having a complete life history of their own.
The principal worm species with which dog owners have to contend are round worms and tape worms. The first named commonly infest puppies and consequently are most dreaded by breeders. In shape and size these worms resemble common angle worms, but in color are lighter, being almost white or only a pale pink.
In adult dogs these worms, when full grown, are from three to seven inches long. In puppies they are about half that length, and as thick as common white string. Round worms live in the small intestines, sometimes coiled in such masses as to obstruct the passage, and occasionally they wander into the stomach or are passed by the bowels.
It is easy to understand that when one dog in a kennel is infected with worms, millions of eggs will be passed with the feces. These are scattered all over the floors, bedding, feeding and drinking pans. They get on the dog’s coat, are licked off and swallowed and in numbers of ways gain entrance to the digestive tracts of other dogs, where they soon hatch out and in ten days are fully developed.
This rapid development account for the popular belief that puppies are born with worms, for breeders who have held post-mortems on puppies scarcely ten days old and have found in their stomachs fully developed round worms could account for their presence in no other way. They overlooked the fact that the prospective mother, confined in a kennel infested with worms, would get these eggs attached to her coat, belly and breasts, and the young, as soon as born, would take these eggs into their stomachs with the first mouthfuls of milk.
Symptoms Of Dog Worms Attack