Effect of Dietary Yeasts Enriched with Cu, Fe and Mn on Digestibility of Main Nutrients and Absorption of Minerals by Growing Pigs

Daniel Korniewicz,Roman Kolacz,Zbigniew Dobrzanski,Katarzyna Chojnacka,Adolf Korniewicz

doi:10.3844/ajabssp.2007.267.275

Daniel Korniewicz, Roman Kolacz + Show 3 more

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https://doi.org/10.3844/ajabssp.2007.267.275

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Abstract

Yeasts Saccharomyces cerevisiae containing in 1 kg of dry product, separately 32.0 g Fe (Y-Fe), 23.0 g Cu (Y-Cu), 35.4 g Mn (Y-Mn), were used as the source of these microelements in complete diet for growing pigs. If considering livestock requirements, feed supplementation with this organic form of microelements, covered animals’ requirements in: Fe-27%, Cu-75%, Mn-30%. ZnO was the source of zinc. The experiments were carried out on 25 barrows. Digestibility of the main nutrients, the apparent absorption and balance for Fe, Cu, Mn as well as Zn, Ca, P, Mg, were carried out. The supplemented microelements did not have the adverse effect on digestibility of the main nutrients and the apparent absorption of Ca, P and Mg. Barrows fed with feed containing Y-Fe excreted more iron with urine than the control, which statistically significantly (P

Highlights

Biological value of minerals in livestock diet bioplexes are absorbed by mucous membrane depends mainly on degree of absorption from the digestive tract
The aim of the present work was to investigate the effect of organic forms of microelements on digestibility of the main nutrients, nitrogen balance as well as on apparent absorption and the balance of iron, copper, manganese, zinc, calcium, phosphorus and magnesium in barrows during the first period of fattening
Manganese yeasts – 35.4 g Mn The yeasts were investigated as the source of iron, copper and manganese and were added to vitaminmineral supplements which were introduced to complete diet type of grower (CDG)

Summary

Introduction

Biological value of minerals in livestock diet bioplexes are absorbed by mucous membrane depends mainly on degree of absorption from the digestive tract. The mechanism is typical as for dipeptides or amino acids[4,9] This enables to avoid competition between microelements for the same site of absorption. A particular attention is paid to microelements, such as iron, copper, zinc, manganese, selenium, iodine, chromium and cobalt[5,11,12], which may have effect on health condition, absorption of nutrients from feed and production yields. The aim of the present work was to investigate the effect of organic forms of microelements (enriched yeasts Saccharomyces cerevisiae) on digestibility of the main nutrients, nitrogen balance as well as on apparent absorption and the balance of iron, copper, manganese, zinc, calcium, phosphorus and magnesium in barrows during the first period of fattening

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