Agro industrial-zinc, Biology


Zinc regulates over a dozen important enzyme systems involved in metabolism of protein and carbohydrates. Zinc is also required for maintaining responsiveness of the immune system through energy production, protein synthesis, stabilization of membranes against bacterial endotoxins, antioxidant enzyme production and maintenance of lymphocyte replication and antibody production. Virtually every phase of cell growth involves Zn, and a deficiency can impact productivity. For example, zinc serves as an activator of enzymes necessary in steroid genesis, which regulates secretion of gonadal hormones. Zinc is also essential for vitamin A metabolism and both have a synergestic action.

The recommended requirement of zinc is 30 mg Zn/kg diet, a concentration which should satisfy requirements in most situations. Zinc deficiency can adversely affect reproductive processes in females from estrus to parturition. Inadequate Zn levels in gestating cows may result in abortion, fetal mummification, lower birth weight or altered myometrial contractility with prolonged labor. Other effects reported include impaired growth, delayed puberty and decreased appetite in Zn deficient bull calves. A loss of appetite results in lowered mineral ingestion, which further decreases feed utilization due to impaired nutrient metabolism. Relative bioavailability of zinc from grains and legume seeds averages about 60-70%. Supplemental sources like zinc sulphate and Zinc oxide are well utilized and their relative bioavailability is 100%.

Posted Date: 9/14/2012 8:08:05 AM | Location : United States

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

Write discussion on Agro industrial-zinc
Your posts are moderated
Related Questions
Steps of Research Process: Identify the Problem: The first  task  in  the  planning stage  is  to identify and stage  the problem, as you have  already learnt in the  earlier

Cut wings (ct) is an X chromosome (sex linked) recessive mutant of D melanogaster. Antennaless (al) is an autosomal recessive mutant. A cut, antennaless (homozygous) female is mate

Explain the Pipettes - Food Microbiology? Sterile glass pipettes or disposable pipettes can be used for transferring the known volume of liquid or culture aseptically. Steriliz

Q What are the major classes into which the phylum is divided? What are the few examples of each and in which form (polyp or medusae) are they found? Coelenterates are divided

two types of amoebas waste and how they get rid of them

Particulates: These are suspended droplets, solid particles or mixture of two. So all the atmospheric substances that are not gases are called particulates. A number of term


what is almentary canal

Ask question #What kinds of detritus or carrion can you observe in this ecosystem? Is there any evidence that scavengers, detritivores or decomposers are utilising this decomposing