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zinc sources for piglet diets

Bioavailability Of Two Sources Of Zinc In Weanling Pigs

Zinc is a vital trace element that is involved in many metabolic functions. Zinc is a cofactor of over 300 metalloenzymes and is required for at least one enzyme in most six enzyme classes. 

Zinc deficiency in pigs is associated with parakeratosis, degraded development performance (decreased food intake and weight gain), and diarrhea, especially in young animals. You can get more information about zinc sources for piglet diets via https://www.feedworks.com.au/zinc-sources-for-piglet-diets/.

 zinc sources for piglet diets,

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Zinc requirements reduction from 100 to 50 milligrams ·kg–1 diet when pig body fat gains from 5 to 50 kg and stays steady thereafter. Such a dietary supply allows an optimum expansion but also the maximization of zinc concentration in some cells. 

However, zinc contained in the majority of plant feedstuffs is poorly accessible pigs, because it forms insoluble complexes with some organic ligands, chiefly phytates. Therefore, the diets must be supplemented with zinc. 

In practice, since large safety margins are applied or due to their growth factor effect, zinc and other trace elements like copper are often oversupplied in pig diets and are highly concentrated in pig manure. 

Zinc supplementation of pig diets can be accomplished by way of different sources. Zinc sulfate (ZnSO4) and zinc oxide (ZnO) are commonly utilized in pig feeding. Organic (complexes or chelates) zinc sources have been suggested to exhibit a greater bioavailability in broilers than inorganic sources.

Enhanced bioavailability of organic Zn could allow the decrease in zinc supply in pig diets and, in turn, would contribute to environmental protection.