Ducks and turkeys with a niacin deficiency show a severe bowing of the legs and an enlargement of the hock joint. The main difference between the leg seen in niacin deficiency and perosis as seen in manganese and choline deficiency is that with niacin deficiency the Achilles tendon seldom slips from its condyles.n the niacin-deficient hen, weight loss, reduced egg production, and a marked decrease in hatchability can result. Turkeys, ducks, pheasants, and goslings are much more severely affected by niacin deficiency than are chickens.
Definition: Mastalgia. Mastalgia is the medical term that describes breast pain. This definition includes all types of breast pain no matter the quality or relationship to menstrual periods. Types of Mastalgia. Mastalgia if often broken down into 3 separate categories:
What is otalgia? Otalgia is ear pain, commonly referred to as an âear acheâ. Primary otalgia exists when the pain originates within the ear. Referred otalgia is pain that originates outside of the ear. When primary otalgia is present, an ear examination typically shows some abnormality of the outer or middle ear. When referred otalgia is present, the ear examination is typically normal.