A variety of hormones are used within the dairy industry to treat reproductive disorders and to regulate the oestrous cycle for timed breeding. These hormones act directly on either the reproductive organs or on the pituitary gland itself to stimulate the release of naturally occurring hormones. These hormones then stimulate the reproductive organs. Prostaglandin, oestrogen and oxytocin act directly on the reproductive organs whereas gonadotrophic releasing hormone (GnRH) acts at the level of the pituitary gland.
Introduction
Luteolysis is the degradation of the corpus luteum (as opposed to luteinisation – the formation of the corpus luteum). Luteolysis occurs in the absence of pregnancy, at the end of the luteal phase. The process of luteolysis is initiated by oxytocin (secreted by the corpus luteum) and prostaglandin F2a in domestic animals.
Mechanism
Progesterone [...]
Introduction
NSAIDs are non-narcotic analgesics (An analgesic reduces or removes the sensation of pain), they are also anti-pyretic (fever) and anti-inflammatory. These effects are produced by the inhibition of the fatty acid cyclooxygenase (COX) which inhibits prostaglandin synthesis.
Because NSAIDs are non-narcotic they do not cause any largely noticeable effects on CNS (central nervous system) [...]
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