In chicks, vitamin [B.sub.6] in corn and soybean meal has about 40% and 60% bioavailability relative to crystal pyridoxine hydrochlorate
salt, respectively (Yen et al., 1976), but the bioavailabilities of vitamin [B.sub.6] in wheat and isolated soybean protein is unknown in either chicks or ducks.
Chlorhexidine was introduced to dentistry in the 1950's and has been used in a range of forms (gluconate, acetate, hydrochlorate
).20 It is a wide spectrum antimi- crobial agent that has medical and dental uses.21 It is miscible in water22 and because of its high solubility in water; the digluconate salt is the most common form of Chlorhexidine.23 It acts by disruption of bacterial membrane.
Leonard Corning of New York injected hydrochlorate
of cocaine into the space between spinous processes of two dorsal vertebrae in a dog.
The nitrates/nitrites concentration was analyzed using the phenol-disulphonic acid method, respectively the sulphanilic acid and [alpha]-naphtylamine hydrochlorate