Vliv rozdílného doplňku mědi do krmiva pro nosnice na obsah mědi ve vejcích, trusu, půdě a píci.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F06%3A16501" target="_blank" >RIV/60460709:41210/06:16501 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985904:_____/06:00040789 RIV/00027014:_____/06:#0000210

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of various copper supplements to feed of laying hens on Cu content in eggs, liver, excreta, soil and herbage

Popis výsledku v původním jazyce

Copper is often added to poultry diets as an antimicrobial agent at doses greatly exceeding the nutritional requirement. In this study, the basal diet of laying henscontaining 9.2 mg Cu/kg was supplemented with CuSO4.5 H2O at 0, 25, 65, 115 and 240 mg Cu/kg dry matter (DM). At Cu dietary concentration just below the level permitted by the European Union (35 mg/kg), the Cu content in the egg yolk was significantly (P < 0.05) increased by 26%, and nonsignificantly by 4.1, 9.1, and 7.9% in the egg white, eggshell, and liver, respectively. When Cu concentration in the diet was doubled, the effect of Cu on Cu content in eggshell and liver was statistically significant as well. In no liver sample was the hygienic limit of Cu content (80 mg/kg) exceeded. Supplementation of diets with Cu increased Cu concentration in excreta linearly from 25.3 to 396.8 mg/kg DM. Dried excreta were used for fertilization of grassland at 21 g N/m2. Three months later, soil and herbage were sampled and analyzed.

Název v anglickém jazyce

Effect of various copper supplements to feed of laying hens on Cu content in eggs, liver, excreta, soil and herbage

Popis výsledku anglicky

Copper is often added to poultry diets as an antimicrobial agent at doses greatly exceeding the nutritional requirement. In this study, the basal diet of laying henscontaining 9.2 mg Cu/kg was supplemented with CuSO4.5 H2O at 0, 25, 65, 115 and 240 mg Cu/kg dry matter (DM). At Cu dietary concentration just below the level permitted by the European Union (35 mg/kg), the Cu content in the egg yolk was significantly (P < 0.05) increased by 26%, and nonsignificantly by 4.1, 9.1, and 7.9% in the egg white, eggshell, and liver, respectively. When Cu concentration in the diet was doubled, the effect of Cu on Cu content in eggshell and liver was statistically significant as well. In no liver sample was the hygienic limit of Cu content (80 mg/kg) exceeded. Supplementation of diets with Cu increased Cu concentration in excreta linearly from 25.3 to 396.8 mg/kg DM. Dried excreta were used for fertilization of grassland at 21 g N/m2. Three months later, soil and herbage were sampled and analyzed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GG - Chov hospodářských zvířat

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Archives of Environmental Contamination and Toxicology

ISSN

0090-4341

e-ISSN

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Svazek periodika

50

Číslo periodika v rámci svazku

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Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

280-283

Kód UT WoS článku

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EID výsledku v databázi Scopus

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