Subtitle:

Acta Ornithologica, vol. 35, no. 2 ; Ocena TOBEC jako metody szacowania masy tłuszczu zawartego w ciele wróbli i mazurków ; Calculating fat mass by TOBEC method

Contributor:

Polska Akademia Nauk. Muzeum i Instytut Zoologii

Publisher:

Muzeum i Instytut Zoologii PAN

Place of publishing:

Warszawa

Description:

Bibliogr. s. 144 ; S. [135]-145 : il. ; 27 cm ; Streszcz. pol. Nazwy taksonów także w jęz. łac.

Type of object:

Czasopismo/Artykuł

Abstract:

Total body electrical conductivity (TOBEC) is the name of a non-invasive method for investigating total body fat (TBF) in vertebrates. The error of measurement depends on body mass (for large animals relative error is small), body shape and other factors. The ACAN-2 apparatus operating on the basis of the TOBEC method shows integer numbers (readings) correlated with lean body mass (LBM). From the series of these readings (measurement) TOBEC can be calculated in many ways. Error for LBM and TBF measure in Tree Sparrows (of masses 22.5 ą 1.7 g) and House Sparrows (of masses 29.8 ą 2.0 g) was equal to 1.19 g. This error may be reduced by repeating the TOBEC measurement and calculating the arithmetic mean of readings from the apparatus obtained 1 second after the commencement of measurement. Readings making up a single measurement series showed periodic irregular fluctuations of average amplitude 3 units in the case of Tree Sparrows and 5 units for House Sparrows - corresponding to errors of 0.5 g LBM in both species. Given individuals of both species were characterised by similar differences between first and second TOBEC measurements. The TOBEC value obtained in a measurement during which a bird defecated in the chamber of the apparatus was significantly higher than that for a bird in a clean chamber. The orientation of the head in the chamber did not influence the repeatability of the TOBEC measurement. In Tree Sparrows, the relationship between TOBEC and LBM differed between those captured and held for one night prior to measurement and those measured for TOBEC immediately after captur

Relation:

Acta Ornithologica

Volume:

35

Issue:

2

Start page:

135

End page:

145

Detailed Resource Type:

Artykuł

Format:

application/pdf

Resource Identifier:

oai:rcin.org.pl:45259

Source:

MiIZ PAN, patrz sygn. czas. P.257, Vol. 35, No 2 ; MiIZ PAN, patrz sygn. czas. P.4568, Vol. 35, No 2 ; click here to follow the link

Language:

eng ; pol

Rights:

Prawa zastrzeżone - dostęp ograniczony

Terms of use:

Zasób chroniony prawem autorskim. Korzystanie dozwolone wyłącznie na terminalach Muzeum i Instytutu Zoologii PAN w zakresie określonym przez przepisy o dozwolonym użytku.

Digitizing institution:

Muzeum i Instytut Zoologii Polskiej Akademii Nauk

Original in:

Biblioteka Muzeum i Instytutu Zoologii PAN

Projects co-financed by:

Program Operacyjny Innowacyjna Gospodarka, lata 2010-2014, Priorytet 2. Infrastruktura strefy B + R ; Unia Europejska. Europejski Fundusz Rozwoju Regionalnego

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