[PDF]    https://doi.org/10.3952/physics.v58i3.3816

Open access article / Atviros prieigos straipsnis

Lith. J. Phys. 58, 277–282 (2018)
REGION DEPENDENT 13C, 15N, 18O ISOTOPE RATIOS IN THE COW MILK
Andrius Garbarasa,b, Raminta Skipitytėa, Aleksey Meliascheniac, Tatiana Senchenkoc, Tatiana Smoliakc, Maria Ivankoc, Justina Šapolaitėa, Žilvinas Ežerinskisa, and Vidmantas Remeikisa
aMass Spectrometry Laboratory, Center for Physical Sciences and Technology, Saulėtekio 3, 10257 Vilnius, Lithuania
bInstitute of Chemical Physics, Vilnius University, Saulėtekio 9, 10222 Vilnius, Lithuania
cMeat and Dairy Industry Institute, Partizanskiy Prospect 172, BY-220075 Minsk, Republic of Belarus
E-mail: andrius.garbaras@ftmc.lt
Received 17 January 2018; revised 23 February 2018; accepted 21 June 2018

We present measurements of stable carbon, nitrogen and oxygen isotope ratio values in cow milk, forage and drinking water collected in Belarus. Milk, water and forage were sampled in Brest, Gomel, Grodno, Minsk and Mogilev regions during summer and winter seasons. δ13C and δ15N values in dried milk samples ranged from –30.2 to – 20.0‰ and from +3.63 to +5.66‰, respectively. The lowest δ13C values were obtained in the Mogilev region in summer. δ18O values in drinking water were quite constant (δ18O = +9.83±0.63‰), but the δ18O pattern in milk water changed across the regions.
Keywords: isotope ratio mass spectrometry, milk isotope analysis, water isotope analysis
PACS: 92.40.kc, 91.67.Rx

13C, 15N, 18O IZOTOPŲ SANTYKIS SKIRTINGŲ REGIONŲ KARVĖS PIENE
Andrius Garbarasa,b, Raminta Skipitytėa, Aleksey Meliascheniac, Tatiana Senchenkoc, Tatiana Smoliakc, Maria Ivankoc, Justina Šapolaitėa, Žilvinas Ežerinskisa, Vidmantas Remeikisa

aFizinių ir technologijos mokslų centras, Vilnius, Lietuva
bVilniaus universiteto Cheminės fizikos institutas, Vilnius, Lietuva
cMėsos ir pieno pramonės institutas, Minskas, Baltarusija

Darbe tirta stabilių anglies ir azoto izotopų santykio verčių karvės piene ir pašaruose, taip pat deguonies izotopų santykio verčių geriamajame vandenyje ir karvės pieno vandenyje, kaita. Pienas, vanduo ir pašarai buvo renkami vasaros ir žiemos sezonais – Bresto, Gomelio, Gardino, Minsko ir Mogiliovo regionuose (Baltarusija). δ13C ir δ15N vertės piene kito atitinkamai nuo –30,2 iki –20,0 ‰ ir nuo +3,63 iki +5,66 ‰. Deguonies izotopų santykio vertės geriamajame vandenyje buvo apie δ18O = +9,83±0,63 ‰. Mažiausios δ13C vertės piene buvo nustatytos vasaros laikotarpiu Mogiliovo regione. Geriamojo vandens δ18O vertės kito mažai, o pieno vandens δ18O vertės įvairiuose regionuose buvo skirtingos.

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