"RIV/61989592:15310/07:00004498!RIV08-MSM-15310___" . "Tkadlec, Emil" . . . . . . "BE - Belgick\u00E9 kr\u00E1lovstv\u00ED" . "4"^^ . . "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" . "Does reproduction accelerate the growth of eye lens mass in female voles?"@en . "Samice v reproduk\u010Dn\u00ED kondici m\u011Bly t\u011B\u017E\u0161\u00ED o\u010Dn\u00ED \u010Do\u010Dky ne\u017E samice v nereproduk\u010Dn\u00ED kondici. Tento efekt ale zmizel, kdy\u017E se do modelu dosadila hmotnost zvirat. V\u00FDsledky ukazuj\u00ED, \u017Ee do model\u016F pro kalibra\u010Dn\u00ED k\u0159ivky pro ur\u010Dov\u00E1n\u00ED v\u011Bku by bylo vhodn\u00E9 dodat je\u0161t\u011B hmotnost zv\u00ED\u0159at jako dodate\u010Dnou kovar\u00E1tu."@cs . "age estimation; eye lens mass; reproduction"@en . "Belgian Journal of Zoology" . "Havelkov\u00E1, Dana" . "417852" . . "137" . "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"@en . "Does reproduction accelerate the growth of eye lens mass in female voles?"@en . . "Does reproduction accelerate the growth of eye lens mass in female voles?" . "RIV/61989592:15310/07:00004498" . . "Urychluje reprodukce t\u016Fst o\u010Dn\u00EDch \u010Do\u010Dek usamic hrabo\u0161e poln\u00EDho?"@cs . "P(GA206/04/2003), P(GD524/05/H536), S, Z(AV0Z60930519), Z(MSM6198959212)" . . "[B6082EFC7FB8]" . "Does reproduction accelerate the growth of eye lens mass in female voles?" . "Urychluje reprodukce t\u016Fst o\u010Dn\u00EDch \u010Do\u010Dek usamic hrabo\u0161e poln\u00EDho?"@cs . . "3"^^ . . "85-88" . . "15310" . "1" . . . . "0777-6276" . "J\u00E1nov\u00E1, Eva" . "1"^^ . . . . .