Shelevach A. V., Fedak N. M.
Pages: 35-40.

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Abstract

The purpose. To determine regularities of exchange of essential biologically active polynonsaturated fatty acids of families omega-3 and omega-6 in an organism of repair heifers in the age of 6–12 months at application in rations of feeding of rape oil. Methods. Experiment was lead in 2 groups of repair heifers of 6–12-months age of Ukrainian black-motley dairy breed in amount of 20 animals with application of methodical approaches accepted in international practice according to demands of ISO 17025, and also according to conventional procedures of groups-analogues on clinically able-bodied animals, considering age and mass of a body. For assessment of the selected material (feedstuffs and blood plasma of animals) they used modern biochemical methods of probes (gas-liquid chromatography and photocolorimetry). Results. The amount of fatty acids of families omega-3 and omega-6 in ration and blood plasma of experimental repair heifers is determined. It is fixed that as a result of addition of rape oil and synthetic joint Doksan into ration of heifers of the tested group, in comparison to control one, in their blood plasma in 8-9-months age due to more intensive conversion of biologically active polynonsaturated fatty acids the density of fatty acids of families omega-3 (linolenic) and omega-6 (linolic) is authentically augmented. It is established also that owing to heightening biological and energy value of ration of heifers of test group, in comparison to control one, energy of their body height is increased. Conclusions. Owing to addition of rape oil biological and energy value of ration of repair heifers increase. In their blood plasma density of biologically active polynonsaturated fatty acids of families omega-3 and omega-6 is augmented. Addition of rape oil and synthetic joint Doksan into ration raises growing capacity and augments mass of body of repair heifers.

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Key words: repair heifers, essential biologically active polynonsaturated fatty acids of families omega-3 and omega-6, rape oil.

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