Noninvasive age estimation in rodents by measuring incisors width, with the Zaisan mole vole (Ellobius tancrei) as an example

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Noninvasive age estimation in rodents by measuring incisors width, with the Zaisan mole vole (Ellobius tancrei) as an example. / Kuprina, Kristina V.; Smorkatcheva, Antonina V.

в: Mammalia, Том 83, № 1, 19.12.2019, стр. 64-69.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{5bbfb6d938784a11b6d4a9851e971e93,

title = "Noninvasive age estimation in rodents by measuring incisors width, with the Zaisan mole vole (Ellobius tancrei) as an example",

abstract = "Non-invasive age estimation is critically important for many field studies but often it represents a significant challenge. In rodents, upper incisors represent a part of a cranium which can be readily measured in an alive animal. We propose an age estimation method based on the measurements of both upper incisors' width (IW) for a subterranean rodent, Ellobius tancrei. The IW measurements for 77 laboratory-born females and 81 males were fitted, separately for the sexes, by sigmoidal Gompertz growth functions to obtain the asymptotic values. Based on the data set encompassing pre-asymptotic ages, we then derived a polynomial regression model with log-transformed age as a predictor. The analysis revealed no statistically significant sex difference in growth patterns. Derived model explained 91% of IW variation and was used to obtain predicted values of age and their 95% prediction intervals through inverse calculations. We conclude that IW is a potentially useful age indicator for mole voles and possibly other rodents in cases when invasive or time-consuming methods are non-appropriate.",

keywords = "age estimation, Ellobius, incisors growth, mole vole, non-invasive method, TALPINUS, GROWTH, POSTNATAL-DEVELOPMENT, WEIGHT, REPRODUCTION",

author = "Kuprina, {Kristina V.} and Smorkatcheva, {Antonina V.}",

year = "2019",

month = dec,

day = "19",

doi = "10.1515/mammalia-2017-0163",

language = "English",

volume = "83",

pages = "64--69",

journal = "Mammalia",

issn = "0025-1461",

publisher = "De Gruyter",

number = "1",

}

RIS

TY - JOUR

T1 - Noninvasive age estimation in rodents by measuring incisors width, with the Zaisan mole vole (Ellobius tancrei) as an example

AU - Kuprina, Kristina V.

AU - Smorkatcheva, Antonina V.

PY - 2019/12/19

Y1 - 2019/12/19

N2 - Non-invasive age estimation is critically important for many field studies but often it represents a significant challenge. In rodents, upper incisors represent a part of a cranium which can be readily measured in an alive animal. We propose an age estimation method based on the measurements of both upper incisors' width (IW) for a subterranean rodent, Ellobius tancrei. The IW measurements for 77 laboratory-born females and 81 males were fitted, separately for the sexes, by sigmoidal Gompertz growth functions to obtain the asymptotic values. Based on the data set encompassing pre-asymptotic ages, we then derived a polynomial regression model with log-transformed age as a predictor. The analysis revealed no statistically significant sex difference in growth patterns. Derived model explained 91% of IW variation and was used to obtain predicted values of age and their 95% prediction intervals through inverse calculations. We conclude that IW is a potentially useful age indicator for mole voles and possibly other rodents in cases when invasive or time-consuming methods are non-appropriate.

AB - Non-invasive age estimation is critically important for many field studies but often it represents a significant challenge. In rodents, upper incisors represent a part of a cranium which can be readily measured in an alive animal. We propose an age estimation method based on the measurements of both upper incisors' width (IW) for a subterranean rodent, Ellobius tancrei. The IW measurements for 77 laboratory-born females and 81 males were fitted, separately for the sexes, by sigmoidal Gompertz growth functions to obtain the asymptotic values. Based on the data set encompassing pre-asymptotic ages, we then derived a polynomial regression model with log-transformed age as a predictor. The analysis revealed no statistically significant sex difference in growth patterns. Derived model explained 91% of IW variation and was used to obtain predicted values of age and their 95% prediction intervals through inverse calculations. We conclude that IW is a potentially useful age indicator for mole voles and possibly other rodents in cases when invasive or time-consuming methods are non-appropriate.

KW - age estimation

KW - Ellobius

KW - incisors growth

KW - mole vole

KW - non-invasive method

KW - TALPINUS

KW - GROWTH

KW - POSTNATAL-DEVELOPMENT

KW - WEIGHT

KW - REPRODUCTION

UR - http://www.scopus.com/inward/record.url?scp=85046637716&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/noninvasive-age-estimation-rodents-measuring-incisors-width-zaisan-mole-vole-ellobius-tancrei-exampl

U2 - 10.1515/mammalia-2017-0163

DO - 10.1515/mammalia-2017-0163

M3 - Article

AN - SCOPUS:85046637716

VL - 83

SP - 64

EP - 69

JO - Mammalia

JF - Mammalia

SN - 0025-1461

IS - 1

ER -

ID: 35315861