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
Cutaneous respiration in earthworm. The respiration performed by the skin is called cutaneous respiration  In earthworm skin is the only organ of respiration. The skin

Define Flow Phase in Physiological Response to injury? It is characterized by hyper metabolism, increased cardiac output, increased urinary nitrogen losses, altered glucose met

Each of the three NADH molecules formed per turn of the cycle yields 3 ATPs and the one FADH2 yields 2 ATPs by oxidative phosphorylation (whereas some measurements indicate in whic

Q What are the typical features of mammals? The typical features of mammals are: body (less or more) covered with hair; presence of the diaphragm muscle that separates the thor

What is the objective of genesis of coronary artery diseases and risk factors ? After reading this unit, you should be able to: Understand the genesis of CAD; 1 learns about th

Chymotrypsin Chymotrypsin  is secreted in an inactive form  'chymotrypsinogen',  which  is activated by  trypsin. Chymotrypsin  is specific  for  peptide  bonds containing unc

During the life cycle of most animals, some diploid cells undergo meiosis and haploid form in a process called gametogenesis. Spermatogenesis: In the testes of the male, the


What is  Posterior Aneurysm? The technique of Posterior Aneurysm operation is the same. Care must be taken to avoid injury to the posterior papillary muscle and poster

Suppose you were breeding rabbits and wanted to design an experiment to see if a new type of food would help your rabbits have fluffier fur. How would you treat the rabbits in the