Age changes in the mineral composition of blood of fur animals
Bespyatykh O.Yu., PhD, assistant professor, leading researcher
Russian Research Institute of Game Management and Fur Farming, Kirov, Russia
For successful cultivation of fur animals it is important to know the regularities of mineral metabolism in postnatal ontogenesis. Therefore the aim of this work was to study age changes in mineral composition of blood of fur animals. In diets and in whole blood of fur animals the content of mineral elements (P, Ca, K, Na, Mg, Fe, Co, Mn, Cu, Cr, Zn, Se, I, In, Si, Ni, V, Li, Sn, Sr, Al, Pb, Cd, Hg, As) was determined by using atomic emission and mass spectrometry methods on Optima-2000 DM and ELAN-9000 (Perkin-Elmer, USA). In the diet of polar foxes and foxes at different stages of postnatal ontogenesis macroelements: phosphorus, calcium, potassium, natrium, magnesium and microelements: iron, manganese, zinc, silicon, aluminum, strontium were detected in large concentrations. The concentration of other elements does not exceed 1 mmol/kg. Specific mineral composition of blood corresponds to each age group of polar foxes and foxes. Concentrations of most mineral elements are maximum in the transition phase and/or phase of natural nutrition (up to 3 months age). They correspond to the intensive development of young animals when internal organs grow and develop; the heat production and the intensity of metabolism changes; hair begins to form. Then the concentration of mineral elements in the blood are reduced (or minimum), which corresponds to phases of puberty and mature body (7-and 12-month animals). The animals are fully formed all the organs and tissues at this point. The metabolism of the body is stabilized in the maturation phase and the spring moult of winter hair. Age dynamics of the content of macro- and microelements in the blood of polar foxes and foxes is probably caused by significant changes in the process of their growth and development which aimed to adaptation of organism to environment and changing of nature of nutrition in the process of postnatal ontogenesis.
Keywords: mineral metabolism, blood, polar fox, fox, ontogeny, diet
1. Balakirev N.A., Kladovshchikov V.F. Normy zatrat kormov dlya pushnykh zverey i krolikov [Standards cost of feed for fur animals and rabbits]. Moscow, 2007. 185 p.
2. Staroverova I.N., Maksimov V.M., Zaytsev S.Yu. Opredelenie defitsita mineral'nykh ve-shchestv u pushnykh zverej [Determination of mineral deficiencies in furbearing animals]. Doklady RASKhN. 2010. no. 3. pp. 41-43.
3. Berestov V.A., Tyurnina N.V., Tyutyunnik N.N. Mineral'nyy sostav volosyanogo pokrova norok i pestsov. Sravnitel'naya kharakteristika [The mineral composition of hair of mink and foxes. Comparative characteristic]. Petrozavodsk: Karelia, 1984. 160 p.
4. Berestov V.A. Klinicheskaya biokhimiya pushnykh zverey [Clinical biochemistry of fur animals]. Petrozavodsk: Karelia, 2005. 168 p.
5. Berezina Yu.A., Bespyatykh O.Yu., Doms-kiy I.A., Perevozchikova M.A., Zhuravlev D.M. Biokhimicheskie pokazateli krovi molodnyaka pestsov raznykh tsvetovykh okrasov [Biochemical parameters of blood of young polar foxes of different colors]. Aktual'nye voprosy veterinarnoy biologii. 2011. no. 4. pp. 5-8.
6. Kokorina A.E., Bespyatykh O.Yu., Berezina Yu.A., Bel'tyukova Z.N., Okulova I.I. Vliyanie dobavki yantarnoy kisloty na biokhimicheskiy profil' krovi u krasnoy lisitsy [Influence of additives of succinic acid on biochemical profile of blood of red fox]. Problemy biologii produktivnykh zhivotnykh. 2011. no. 2. pp. 94-100.
7. Zaytsev S.Yu., Konopatov Yu.V. Biokhimiya zhivotnykh. Fundamental'nye i klinicheskie aspekty. [Biochemistry of animals. Fundamental and clinical aspects]. SPb.: Lan, 2004. 384 p.
8. Skal'nyj A.V. Khimicheskie elementy v fiziologii i ekologii cheloveka [Chemical elements in physiology and ecology of human]. Moscow: ONYX 21 century, 2004. 216 p.
9. Abramov M.D. Zakonomernosti rosta i voprosy pitaniya v postnatal'nom ontogeneze molodnyaka norok. [Patterns of growth and questions of nutrition in postnatal ontogenesis of young minks]. Biologiya i veterinariya pushnykh zverey i krolikov. Moscow, 1981. pp. 78-85.