ANSC 2120 Lecture Notes - Lecture 22: Molybdate, Tocopherol, Rumen

• School: Cornell University
• Department: Animal Science
• Course: ANSC 2120
• Professor: Debbie Cherney

Document Summary

Availability, absorption, and post-absorptive utilization (cid:1) (cid:1) (cid:1) (sometimes) of essential minerals are influenced by other minerals (cid:1) Well known examples include: na-k, ca-p (all species, cu-mo-s (ruminants) (cid:1) (cid:1) (cid:1) both trace (cid:1) Copper molybdenium sulfur interactions in ruminants. Sulfur is a macro mineral, while copper and molybdenum are. Most common effect is induced cu deficiency caused by relatively high levels of mo and/or s: symptoms of cu deficiency (primary or induced): Induced cu toxicity is less common but can occur when normal dietary levels of cu are accompanied by low levels of. Mo and/or s: usually only occurs after prolonged exposure to high levels of dietary cu after the liver"s capacity for cu storage is exceeded. Mechanisms of cu-mo-s interactions: principle site is the rumen. Lecture 22: i mineral-mineral interaction & ii vitamin e and selenium: net effect is decreased cu absorption. Vitamin e is the general name for a group of closely related compounds called tocopherols.