Agro industrial-iron, Biology

Iron


Iron is an essential component of the proteins involved in oxygen transport or utilization. These proteins, including hemoglobin, myoglobin and a number of cytochrome and iron-sulphur proteins, are involved in the electron transport chain. Several mammalian enzymes also either contain or are activated by iron. More than 50 % of the body’s iron is present in hemoglobin; smaller amounts are present in other iron requiring proteins, enzymes and in protein-bound stored iron. Most practical feedstuffs have more than adequate amounts of iron, and iron deficiency is unlikely in animals. In most field conditions, the iron deficiency is a secondary one due to either protein deficiency or parasite infestations or diseases causing chronic blood loss. Without blood loss, only small amounts of iron are lost through urine and feces.


Cereal grains normally contain 30 to 60 mg Fe/kg; oilseed meals contain 100 to  200 mg Fe/kg. With the exception of milk and milk products, feeds of animal origin are high in iron: meat and fish meal contain 400 to 500 mg Fe/kg: blood meal usually has more than 3,000 mg Fe/kg. Although the iron content of forages is highly variable, most forages contain from 70 to 500 mg Fe/kg. Much of the iron variation in forage is likely caused by soil contamination. Water and soil ingestion can be significant sources of iron for livestock, although availability from forages appears to be lower than other sup plementa l ir on sourc e s. I nc re asing dietar y ca lcium a nd /or p ho sp ho rus concentrations decrease iron absorption. Citrate, fumarate and gluconate forms of iron have been found to be equal in bioavailability to that of ferrous sulphate

Posted Date: 9/14/2012 8:02:29 AM | Location : United States







Related Discussions:- Agro industrial-iron, Assignment Help, Ask Question on Agro industrial-iron, Get Answer, Expert's Help, Agro industrial-iron Discussions

Write discussion on Agro industrial-iron
Your posts are moderated
Related Questions
What functions performed by Vitamin and Mineral for athletes? Vitamins and minerals perform the same essential functions for athletes and non-athletes alike. However, owing t

Is a gene a triplet of consecutive DNA nucleotides? A gene is not a triplet of DNA nucleotides with their respective nitrogen-containing bases, like AAG or CGT. The nucleotide


Graduate student Dee Innay works in a human genome lab, whose goal is to identify the human gene responsible for a form of muscular dystrophy (MD).  Dee has mapped the MD gene to a

Define Excretion of Methyl malonic acid in urine (Methyl malonil aciduria)? Methyl malonic acid is found only in traces in normal urine (1-2 mg/day). In vitamin  B 12 deficie

Name two possible why the number of live bacteria cell have reached the stationary growth by 60hrs and start to die off after 12hrs?

Determine fat-soluble vitamins Recommended for Infant? ICMR (1990) does not give recommendations for vitamins D, E and K. As you already know, vitamin D is expected to be met

How is the gastric mucosa protected from the acid pH of the stomach? The gastric epithelium is mucus secretory, i.e., it makes mucus. The mucus covers the stomach wall preventi

How CAMPYLOBACTERIOSIS  occurs in humans C. jejuni frequently contaminates raw chicken. Survey shows that 20-100% of retail chickens are contaminated. Many healthy chickens car

To make a 40 mg/mL solution of kanamycin (MW 582.6) how many grams of kanamycine would you dissolve in 500 mL of water?