Influence of limestone particle size on performance and egg quality in laying hens aged 24-36 weeks and 56-68 weeks
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F10%3A%230001200" target="_blank" >RIV/00027014:_____/10:#0001200 - isvavai.cz</a>
Výsledek na webu
—
DOI - Digital Object Identifier
—
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Influence of limestone particle size on performance and egg quality in laying hens aged 24-36 weeks and 56-68 weeks
Popis výsledku v původním jazyce
ISA Brown hens aged 24?36 weeks and hens aged 56?68 weeks were used to study the influence of limestone particle size and the animal?s age on laying performance and egg quality. Two diets were used: a diet containing calcium carbonate in fine limestone particles (LF), and a diet containing calcium carbonate in coarse limestone particles (LC). Lower egg production in hens aged 56?68 weeks was compensated in part by higher egg weight. In younger and older hens, feeding the LC diet increased hen-day egg production (P<0.001), shell weight by 0.2 and 0.2 g (P<0.001), shell thickness by 4 and 8 ?m (P<0.001), shell Ca content by 2 and 2 mg/g DM (P=0.003), albumen height by 0.2 and 0.3 mm (P=0.003), and Haugh units by 0.8 and 0.2 (P=0.014), respectively. It can be concluded that LC should be considered rather than LF when formulating diets for laying hens both in the early and the late phase of production.
Název v anglickém jazyce
Influence of limestone particle size on performance and egg quality in laying hens aged 24-36 weeks and 56-68 weeks
Popis výsledku anglicky
ISA Brown hens aged 24?36 weeks and hens aged 56?68 weeks were used to study the influence of limestone particle size and the animal?s age on laying performance and egg quality. Two diets were used: a diet containing calcium carbonate in fine limestone particles (LF), and a diet containing calcium carbonate in coarse limestone particles (LC). Lower egg production in hens aged 56?68 weeks was compensated in part by higher egg weight. In younger and older hens, feeding the LC diet increased hen-day egg production (P<0.001), shell weight by 0.2 and 0.2 g (P<0.001), shell thickness by 4 and 8 ?m (P<0.001), shell Ca content by 2 and 2 mg/g DM (P=0.003), albumen height by 0.2 and 0.3 mm (P=0.003), and Haugh units by 0.8 and 0.2 (P=0.014), respectively. It can be concluded that LC should be considered rather than LF when formulating diets for laying hens both in the early and the late phase of production.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
GH - Výživa hospodářských zvířat
OECD FORD obor
—
Návaznosti výsledku
Projekt
—
Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)
Ostatní
Rok uplatnění
2010
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Animal Feed Science and Technology
ISSN
0377-8401
e-ISSN
—
Svazek periodika
158
Číslo periodika v rámci svazku
1-2
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
5
Strana od-do
—
Kód UT WoS článku
000278690100012
EID výsledku v databázi Scopus
—