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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F07%3A00004498%21RIV08-MSM-15310___
rdf:type
n9:Vysledek skos:Concept
dcterms:description
Although the eye lens mass method has long been used for determining age in small rodents from natural populations, the effects of breeding on growth rates of lenses are rarely considered. Under laboratory conditions, we examined eye lens mass in two groups of 100- day old females of the common vole (Microtus arvalis) : one comprising the females that have already bred, each delivering two litters, and another comprising controls that did not reproduce. The breeding females were heavier than the nonbreeding ones and also had heavier dried eye lenses. However, the effect of breeding on eye lens mass disappeared when the variation in body mass was accounted for in the statistical model. The total number and mass of offspring that the females produced did not affect the lens mass. We conclude that different reproductive histories did affect the growth of eye lens in female common voles through its influence on body size. These results suggest that besides age, the construction of calibration curve Samice v reprodukční kondici měly těžší oční čočky než samice v nereprodukční kondici. Tento efekt ale zmizel, když se do modelu dosadila hmotnost zvirat. Výsledky ukazují, že do modelů pro kalibrační křivky pro určování věku by bylo vhodné dodat ještě hmotnost zvířat jako dodatečnou kovarátu. Although the eye lens mass method has long been used for determining age in small rodents from natural populations, the effects of breeding on growth rates of lenses are rarely considered. Under laboratory conditions, we examined eye lens mass in two groups of 100- day old females of the common vole (Microtus arvalis) : one comprising the females that have already bred, each delivering two litters, and another comprising controls that did not reproduce. The breeding females were heavier than the nonbreeding ones and also had heavier dried eye lenses. However, the effect of breeding on eye lens mass disappeared when the variation in body mass was accounted for in the statistical model. The total number and mass of offspring that the females produced did not affect the lens mass. We conclude that different reproductive histories did affect the growth of eye lens in female common voles through its influence on body size. These results suggest that besides age, the construction of calibration curve
dcterms:title
Does reproduction accelerate the growth of eye lens mass in female voles? Does reproduction accelerate the growth of eye lens mass in female voles? Urychluje reprodukce tůst očních čoček usamic hraboše polního?
skos:prefLabel
Does reproduction accelerate the growth of eye lens mass in female voles? Urychluje reprodukce tůst očních čoček usamic hraboše polního? Does reproduction accelerate the growth of eye lens mass in female voles?
skos:notation
RIV/61989592:15310/07:00004498!RIV08-MSM-15310___
n4:strany
85-88
n4:aktivita
n15:S n15:P n15:Z
n4:aktivity
P(GA206/04/2003), P(GD524/05/H536), S, Z(AV0Z60930519), Z(MSM6198959212)
n4:cisloPeriodika
1
n4:dodaniDat
n8:2008
n4:domaciTvurceVysledku
n18:7996144
n4:druhVysledku
n14:J
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n19:predkladatel
n4:idSjednocenehoVysledku
417852
n4:idVysledku
RIV/61989592:15310/07:00004498
n4:jazykVysledku
n13:eng
n4:klicovaSlova
age estimation; eye lens mass; reproduction
n4:klicoveSlovo
n11:age%20estimation n11:reproduction n11:eye%20lens%20mass
n4:kodStatuVydavatele
BE - Belgické království
n4:kontrolniKodProRIV
[B6082EFC7FB8]
n4:nazevZdroje
Belgian Journal of Zoology
n4:obor
n17:EG
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
3
n4:projekt
n7:GA206%2F04%2F2003 n7:GD524%2F05%2FH536
n4:rokUplatneniVysledku
n8:2007
n4:svazekPeriodika
137
n4:tvurceVysledku
Tkadlec, Emil Havelková, Dana Jánová, Eva
n4:zamer
n6:MSM6198959212 n6:AV0Z60930519
s:issn
0777-6276
s:numberOfPages
4
n16:organizacniJednotka
15310