ANSC 3120 Lecture Notes - Lecture 5: Pyridoxine, Provitamin, Parathyroid Gland

• School: University of Guelph
• Department: Animal Science
• Course: ANSC 3120
• Professor: Ira Mandel

Document Summary

Detected presence in the body doesn"t mean they are essential. We can find any of the naturally occurring minerals in animal tissue. Sometimes can just mean that they are getting ingested and absorbed. Feeding purified diets that contains highly refined and expensive ingredients with special mineral absent. In symptoms develop, put the mineral back to see if health restored. This can be difficult because contamination can happen with water and air. Goal is to meet species requirements for major and trace minerals. Bioavailability of minerals in feeds affected by. Phytates or phytic acid that ties up p, unavailable to monogastrics. Ca, p, cl, mg, k, na, s. Cr, co, cu, f, fe, i, mn, mo, se, si, zn. Occur in adult animals when the body breaks down bone to utilize the ca. Bones become weak and egg shells break easily. Ca deficiency in dairy cows after calving after large amount of ca gets deposited into the milk.