Time of oviposition and egg quality

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F03%3A00005142" target="_blank" >RIV/60460709:41210/03:00005142 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Time of oviposition and egg quality

Popis výsledku v původním jazyce

An experiment was conducted to determine the influence of time of oviposition on egg quality characteristics and performance of laying hens. ISA brown hens from 20 to 64 weeks of age were used in this study. Eggs were collected daily at three-ovipositiontimes 06:00, 10:00 and 14:00 hr. Every four weeks, 30 eggs for each ovipostiton time were used for egg examination. The results indicared that the greatest percentage of the normal, nonstandard and craced eggs were laid in the early morning (P?0,01). Time of oviposition influenced signifikantly (P?0,01) in egg weight, shell percentage and Haugh Units and non-significantly in shell strengh. The heaviest eggs were laid in the early morning (06:00 hr) and the egg weight at 10:00 and 14:00 were 60.64 and 60.02g respectively. Haugh Units were higher in eggs laid in the afternon at 14:00 hr (76.87) and it significantly decreased at 10:00 hr (74.23) and at 06:00 hr (73.88).

Název v anglickém jazyce

Time of oviposition and egg quality

Popis výsledku anglicky

An experiment was conducted to determine the influence of time of oviposition on egg quality characteristics and performance of laying hens. ISA brown hens from 20 to 64 weeks of age were used in this study. Eggs were collected daily at three-ovipositiontimes 06:00, 10:00 and 14:00 hr. Every four weeks, 30 eggs for each ovipostiton time were used for egg examination. The results indicared that the greatest percentage of the normal, nonstandard and craced eggs were laid in the early morning (P?0,01). Time of oviposition influenced signifikantly (P?0,01) in egg weight, shell percentage and Haugh Units and non-significantly in shell strengh. The heaviest eggs were laid in the early morning (06:00 hr) and the egg weight at 10:00 and 14:00 were 60.64 and 60.02g respectively. Haugh Units were higher in eggs laid in the afternon at 14:00 hr (76.87) and it significantly decreased at 10:00 hr (74.23) and at 06:00 hr (73.88).

Druh

D - Stať ve sborníku

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

2003

Kód důvěrnosti údajů

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

Název statě ve sborníku

Sborník - sdělení z mezinárodní konference #Současnost a perspektivy chovu drůbeže#

ISBN

80- 213-1037-5

ISSN

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e-ISSN

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Počet stran výsledku

3

Strana od-do

107-109

Název nakladatele

Česká zemědělská univerzita v Praze

Místo vydání

Praha

Místo konání akce

ČZU Praha

Datum konání akce

15. 5. 2003

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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