Oh Selenium, calcium, copper and phosphorus small percentage is absorbed in big/large intestine or stomach:
Calcium that reaches the large intestine undergoes absorption there by both active and passive processes. Probably no more than 10% of total calcium absorption takes place in the large intestine, whether calcium intake is low or high
Most of the inorganic P/phosphorus (Pi) absorbed is from the small intestine, though at higher intake of P some net absorption of Pi also occurs from the large intestine (Care, 1994). Net absorption of P from the large intestine in sheep ranges from 2 to 30% of the P flow entering the large intestine (Breves and Schroder, 1991).
Copper absorption occurs in the stomach and small intestine
Selenium is mainly absorbed in the duodenum and caecum (big intestine)
can someone help make this out for me? https://www.nrcresea...4141/cjas90-109
Is it saying low levels of zinc and Manganese is also absorbed in big intestine and or stomach etc?
Zn, lower (P<0.01) solubility at TI wirh less (P<0.05) absorbed from large intestine (LI); Fe/Iron, more (P:0.06) absorbed from LI with lower (P<0.01) fecal excretion; P/phosphorus , lower (P<0.05) input to stomach region with a tendency fbr less (P:0'08) absorbed from small intestine (SI); Na/sodium, less (P<0.05) absorbed from LI; K/Potassium , lower (P<0'05) apparent digestibility. Effects of S: Mn/Manganese , slight tendency for higher (P:0.10) absorption distal toPD;Zn,lower (P<0.05) solubility at PD; P, less (P<0.05) absorbed from SI and LI; Mg, tendency for less (P:0.07) absorbed from stomach region and trend for more (P:0.b8) absorbed distal to PD. Minerals other than Cu were influenced by Mo and S in the digestive tract of cattle.
If this is the case then left are the vitamins and minerals: Vitamins b1, b2, b5, b6, b7, b9, b12, vitamin A, vitamin E, Iodine, Chromium, Molybdenum and Cobalt.
I assume chromium, cobalt, molybdenum and iodine are also absorbed in small amounts outside of small intestine? Heck they all might be absorbed in little amounts in other places but the small intestine? including proteins, fats etc or? maybe the importance is HOW MUCH is absorbed
(edit) Absorption and Metabolism. Iodide absorption takes place predominantly in the stomach and upper small intestine. The different forms of iodine are reduced to iodide in the gut before absorption [1,3]. ... Other tissues take up small amounts of iodine, including the salivary glands, gastric mucosa, and choroid plexus.
I will just skip Chromium, Molybdenum and Cobalt for now and focus on these Vitamins b1, b2, b5, b6, b7, b9, b12, vitamin A, vitamin E,
Edited by kurdishfella, 20 September 2020 - 08:58 PM.