Divergentní selekce na tvar růstové křivky u Japonských křepelek. 3. Nástup pohlavní dospělosti a základní chrakteristika rané snášky

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F07%3A%230000523" target="_blank" >RIV/00027014:_____/07:#0000523 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378041:_____/07:00090596

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Divergent selection for shape of growth curve in Japanese quail. 3. Onset of sexual maturity and basic characteristics of early lay

Popis výsledku v původním jazyce

The onset of lay, quality of eggs during early lay and gonadal development of both sexes were analysed in the HG and LG lines divergently selected for high and low relative weight gain between 11 and 28 d of age, respectively, and constant BW at 49 d ofage. The LG line was sexually mature at an earlier age and lower BW than the HG line. This corresponded with the trend during embryonic and early postnatal development. Analysis of gonads also confirmed earlier sexual development in the LG than in the HGline. Despite the different age and BW at onset of lay, HG and LG quail commenced lay at the same degree of maturity - 90% of adult BW. Thus, the onset of sexual maturity could be identified as a point on the growth curve which terminates the linear growth phase. When compared with the LG line, the HG line was characterised by a longer acceleration and shorter retardation growth phase. This difference is seen as an important determinant of line differences in growth and reproductive per

Název v anglickém jazyce

Divergent selection for shape of growth curve in Japanese quail. 3. Onset of sexual maturity and basic characteristics of early lay

Popis výsledku anglicky

The onset of lay, quality of eggs during early lay and gonadal development of both sexes were analysed in the HG and LG lines divergently selected for high and low relative weight gain between 11 and 28 d of age, respectively, and constant BW at 49 d ofage. The LG line was sexually mature at an earlier age and lower BW than the HG line. This corresponded with the trend during embryonic and early postnatal development. Analysis of gonads also confirmed earlier sexual development in the LG than in the HGline. Despite the different age and BW at onset of lay, HG and LG quail commenced lay at the same degree of maturity - 90% of adult BW. Thus, the onset of sexual maturity could be identified as a point on the growth curve which terminates the linear growth phase. When compared with the LG line, the HG line was characterised by a longer acceleration and shorter retardation growth phase. This difference is seen as an important determinant of line differences in growth and reproductive per

Druh

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

CEP obor

GI - Šlechtění a plemenářství hospodářských zvířat

OECD FORD obor

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Projekt

<a href="/cs/project/GA523%2F99%2F1262" target="_blank" >GA523/99/1262: Genetická analýza růstu u modelového objektu (japonská křepelka)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

British Poultry Science

ISSN

0007-1668

e-ISSN

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Svazek periodika

48

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

551-558

Kód UT WoS článku

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EID výsledku v databázi Scopus

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