Почему у собаки не выводятся блохи? - briefly
Fleas stay on a dog because their development occurs on the host and the animal’s coat shelters them, making natural shedding unlikely. Ineffective treatment or resistance to insecticides further prevents their removal.
Почему у собаки не выводятся блохи? - in detail
Fleas persist on a dog because they are biologically adapted to cling to the host’s coat and feed continuously. Adult fleas possess specialized claws that lock onto hair shafts, preventing accidental loss during movement. Their legs are equipped with a comb‑like structure that grips each hair, allowing the insect to remain stable even when the dog runs or jumps.
Feeding behavior also anchors fleas. After locating a suitable host, a flea inserts its mouthparts into the skin, secreting anticoagulant saliva that numbs the area and reduces the dog’s immediate reaction. This prolonged blood meal, lasting several minutes, secures the flea in place until it is fully engorged.
The flea life cycle reinforces host attachment. Eggs, larvae, and pupae develop in the dog’s environment—bedding, carpets, and outdoor areas—where they are protected from direct contact with the animal. When conditions become favorable, pupae emerge as adult fleas that immediately seek a host, often the same dog that previously housed the colony.
Several factors impede natural flea loss:
- Inadequate grooming: Dogs that are not regularly brushed retain more hair, providing additional anchorage points.
- Thick or double coats: Dense fur creates a micro‑environment that shelters fleas from air currents and mechanical disturbance.
- Ineffective treatment: Resistance to common insecticides allows fleas to survive topical or oral medications, maintaining the infestation.
- Environmental reservoir: Untreated surroundings continuously reinfest the dog, negating any temporary reduction in flea numbers.
Effective control requires simultaneous action on the animal and its habitat. Comprehensive treatment protocols combine adulticidal products (topical, oral, or injectable) with environmental decontamination (vacuuming, washing bedding at high temperatures, applying insect growth regulators). Regular grooming and monitoring for signs of flea activity further reduce the chance that insects remain attached.
By addressing the flea’s attachment mechanisms, feeding habits, life cycle, and environmental sources, owners can prevent the persistent presence of these ectoparasites on their dogs.