Wednesday, February 3, 2010
MAN-MONKEY RELATIONSHIP
Friday, July 31, 2009
6 REASONS FOR HAIR LOSS IN DOGS
1. Allergies
Allergic reactions are a major cause of patchy hair loss. The dog may be allergic to airborne pollen, food ingredients or environmental exposure to allergens. Licking of paws, or small bumps over the body are typical symptoms of allergy. Once the irritant is identified, the dog exposure can often be restricted.
2. Folliculitis
Damage to hair follicles causes hair loss. Allergies, hormonal problems or bacterial infections cause belly hair loss, scaling or skin lesions. Usually antibiotics are prescribed to treat the infection.
3. Endocrine Problems
Endocrine glands control normal function and development. The glands produce hormones critical to dog health. Some endocrine diseases and problems cause serious hair loss. Examples are hypothyroidism and Cushing's disease.
4.Parasites
Sarcoptic mange is caused by mites.Many parasites such as fleas, ticks, mites and lice cause hair loss. Inflammation from the parasites causes infections and bald patches. Mange is an example of hair-loss disease transmitted by parasites.
5. Ringworm
Ringworm causes hair loss, skin scales and crusty sores. The hair loss is usually in a ring pattern and may itch. Various types of fungus cause ringworm, and it is usually spread by contact with an infected animal or items such as bedding or grooming gear shared with an infected animal.
6. Stress
When a dog has stress in its life such as illness, surgery or loss of an owner, the dog may blow its coat. Instead of normal shedding, the dog loses big clumps of hair. Handfuls may come out at a touch or in the dog bedding.
Tuesday, July 21, 2009
Mange in dog and causative agents

Mange means an infection of the skin with mites, which usually results in loss of hair and scaly skin.
There are different mites which affect pets, the most common of which are:
1. The sarcoptic mite or dog scabies mite, it is common in dogs.
2. Ear mites - These are very common in cats and also occur in dogs.
3. Demodex, which cause demodectic mange. There are two types which occur in dogs, namely localized and generalized.
4. Cheyletiellosis, or 'walking dandruff', which can occur in both dogs and cats.
Mites are much like smaller versions of ticks and are roughly oval to circular short-legged insects barely visible to the naked eye. These are permanent parasites; each of their life stages relies on a host, and only survive for a short while when separated from that host, usually less than a week. They can spend their whole life on the same host.
Transmission between hosts is by direct contact due to the mite's short lifespan off-host. Generally, mites of dogs and cats feed on skin debris. Some can also feed on tissue fluid or blood. Enzymes are secreted by the mite from its salivary glands when it bites into the skin, to digest its 'food'.
Mites cause problems due to their burrowing behavior, which can damage layers of the skin, causing irritation and inflammation. Allergies to mite saliva or the mites themselves can cause severe itching in hypersensitive animals. Non-burrowing mites can cause irritation as they walk along the skin surface.