Page 150 - Microsoft Word -Cow Book 10-06-09 final update.doc

III. Hormones

The definition of a hormone is a chemical substance produced in the body by an
organ or cells of an organ which has a specific regulatory effect on the activity of
a certain organ. The term was originally applied to substances secreted by
various endocrine glands and transported in the blood stream to the target organ
on which their effect was produced. The term was later applied to various
substances not produced by special glands but having similar action.

A. Recombinantly derived products:

 Sometribone zinc-recombinant DNA derived bovine somatotropin
(rBST)

B. Pituitary Hormones

 Follicle Stimulating  Chorionic Gonadotropin (CG,
Hormones (FSH) HCG)
 Luteinizing Hormones (LH)  Oxytocin
 Gonadorelin (GnRH)  Corticotropin (ACTH)

C. Adrenocorticosteroids

This class of drugs has many complex effects in the animal. More of the
reactions associated with inflammation are suppressed by the corticosteroids
than by any other class of anti-inflammatory drugs. Because of their effects
on glucose metabolism, these drugs are also used in the treatment of ketosis.

 Dexamethasone  Prednisolone
 Isoflupredone  Flumethasone
 Prednisone  Triamcinolone

D. Prostaglandins

 Cloprostenol
 Dinoprost
 Fenprostalene

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