I am researching selenium. I am trying to find information on the following topics: 1. Types of selenium (selenate, selenite, etc) How each type is absorbed, sources, how long is stays in the system, etc. 2. Options for administering selenium and their effecacy. BoSe and MoSe said to be ONLY good for emergencies and are a form that absorb quickly but DO NOT stay in the system very long, therefore not ideal for long term supplementing. ANY INFO ON THIS is much appreciated. I'd like to ideally find a study done that tested selenium levels before administration, after, and after an extended period such as a week or a month to show descrese in selenium level despite shot. Food sources, crumbles, pellets, gels etc suggested to be most ideal, though for large herds not very practical. More info on these methods appreciated. 3. How selenium effects the system Dangers of low selenium levels Dangers of high selenium levels What the (goat) body does with selenium What other vitamins and minerals effect selenium levels Any tidbits, experience, or scientific hard evidence and study trials are much appreciated. Thanks.