Differential influence of phytase supplementation on the balance of phosphorus and other elements in laying hens’ feed

• Authors: Sobolewska Sylwia , Orda Janusz , Budny-Walczak Anna

Title variants

PL

Wpływ dodatku fitazy mikrobiologicznej w żywieniu kur nieśnych na bilans fosforu oraz innych pierwiastków

• Languages of publication: EN

Abstracts

EN

The aim of this study was to evaluate the impact of microbial phytase addition to laying hen diet on the balance of phosphorus, calcium, manganese and zinc. Phytase supplementation caused a decrease in phosphorus excretion by 8% in the group with low-phytase diet and 21% in the group with phytase addition of 1000 FTU (one unit of phytase activity) to a diet. Phytase supplementation increased the retention of phosphorus by 31% in laying hens receiving 500 FTU and 57% in the group with phytase addition of 1000 FTU to a diet, in comparison to the group without enzyme supplementation. The level of manganese in excretion was increased by 18% in the group receiving 1000 FTU phytase, and retention decreased by 24% compared with the control group. Zinc excretion was significantly increased in the group receiving 500 FTU (P ≤ 0.01) and in the group receiving 1000 FTU phytase (P ≤ 0.05). Retention of zinc was lower (P ≤ 0.01) when the birds were fed with feed containing 500 FTU and 1000 FTU phytase (P ≤ 0.05), compared with the control group. No effect on the quantity and retention of calcium excretion was found. There was no impact of phytase supplementation on egg production and egg weight.

PL

W prezentowanej pracy przedstawiono badania dotyczące wpływu dodatku fitazy mikrobiologicznej do mieszanki pełnoporcjowej przeznaczonej dla kur nieśnych na bilans fosforu, wapnia, manganu i cynku. Dodatek fitazy wpłynął na obniżenie wydalania fosforu w kałomoczu o 8% w grupie otrzymującej paszę z mniejszym dodatkiem oraz o 21% w grupie z dodatkiem 1000 FTU fitazy. Dodatek enzymu do mieszanki zwiększył także retencję fosforu o 31% u kur nieśnych otrzymujących 500 FTU i o 57% w grupie z dodatkiem 1000 FTU fitazy w porównaniu do grupy ptaków nieotrzymujących tego enzymu. Ilość fosforu wydalanego w jajach była wyrównana we wszystkich grupach i nie zaobserwowano istotnych różnic pomiędzy nimi. Kury nioski otrzymujące 1000 FTU fitazy w paszy wydalały o 18% więcej manganu w pomiocie i jednocześnie o 24% spadła jego retencja w porównaniu z grupą kontrolną. Ilość cynku wydalanego przez ptaki zwiększyła się w grupie otrzymującej 500 FTU (p ≤0.01) oraz w grupie otrzymującej 1000 FTU fitazy (p ≤0.05). Retencja cynku była niższa (p<0.01) w porównaniu z grupą kontrolną zarówno gdy ptaki żywiono paszą z dodatkiem 500 FTU fitazy, jak i w grupie dostającej 1000 FTU (p ≤0.05). Niezależnie od ilości dodatku badanego enzymu nie obserwowano jego wpływu na ilość oraz retencję wapnia wydalanego przez kury nioski. W doświadczeniu nie stwierdzono wpływu dodatku fitazy na nieśność oraz masę jaj.

Keywords

EN

phytase; laying hens; phosphorus; calcium; manganese; zinc

PL

fitaza; kury nioski; fosfor; wapń; mangan; cynk

• Publisher: Uniwersytet Opolski, Wydział Ekonomiczny
• Journal: Economic and Environmental Studies
• Year: 2015
• Volume: 15
• Issue: 4(36)
• Pages: 461-468

Dates

published

2015-12

Contributors

author

Sobolewska Sylwia

• Wrocław University of Environmental and Life Sciences, Poland

author

Orda Janusz

• Wrocław University of Environmental and Life Sciences, Poland

author

Budny-Walczak Anna

• Wrocław University of Environmental and Life Sciences, Poland

redactor

Paradowska Monika

redactor

Platje Joost (Johannes)

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Identifiers

ISSN

2081-8319