PDCA - One Blog

Welcome to the first Dexter cattle blog to disseminate information for members of the Purebred Dexter Cattle Association of North America (PDCA) and for those with a curiosity about Irish Dexter cattle, cattle in general, as well as news from the PDCA. Expressions of opinion are to not be regarded as expressing the official opinion of the PDCA unless expressly stated. Hopefully you will find something here of interest and don't overlook browsing through the archives. Comments are welcomed.

Wednesday, July 26, 2006

Principles of Milking

The Babcock Institute provides some useful dairy information such as about lactation and milking.
Figure 1: Milk ejection reflex-when the cow is stimulated by touch on the udder skin, the sound of a milking machine or the sight of a calf, nerve impulses pass to the hypothalamus in the brain. The hypothalamus stimulates the posterior pituitary gland to discharge oxytocin. Blood carries this hormone to the myoepithelial cells that surround the alveoli. The contraction of the myoepithelial cells forces the milk into the duct system and the gland cistern. Excitement or pain inhibit the milk ejection reflex.

PDCA - One Google