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THE EFFECT OF SELENIUM ADDED TO FEEDSTUFFS ON ITS CONTENT IN TISSUES AND ON GROWTH OF RABBITS
Miroslav Štruklec
; Univerza v Ljubljani, Biotehniška fakulteta, Oddelek za zootehniko, Domžale, Slovenija
Vekoslava Stibilj
; Univerza v Ljubljani, Biotehniška fakulteta, Oddelek za zootehniko, Domžale, Slovenija
Irena Rajh
; Univerza v Ljubljani, Biotehniška fakulteta, Oddelek za zootehniko, Domžale, Slovenija
Marjan Dermelj
; Univerza v Ljubljani, Inštitut Jožef Stefan, Ljubljana Slovenija
Sažetak
0.1(A) and 0.3 ppm (B) respectively of selenium in the form of Na₂SeO₃ were added to the feed mixuter that was fed to female New Zealand White rabbits in the final stage of gestation and in lactation period. The addition of selenium in groups A and B had a positive effect on the increase of body mass of fetuses in the last week of gestation (K=36.25%, A=57.8%, B=56.4 %) and a significant effect on the development of body mass in young rabbits in group A (K=343.6 g, A=436.2 g, B=373.5 g). The content of selenium in mother's blood decreased in the second week to the lowest level, but in the third week it exceeded the values from the first week (K=1 .06/0.74) 1.22, A=0.94/0.93/1.2, B=1.13/0.89/1.15 μg.g⁻¹ DM). In the liver of young rabbits the concentration of selenium was significantly higher in group B (K=1.97, A=1.89, B=2.18 μ.g⁻¹ DM) at age 21 days, while at age 30 days it increased proportionally with the supply of selenium (K=1.95, A=2.20, B=2.54μ.g⁻¹ DM). ln kidneys the situation was not so clear since the concentration of selenium was higher in comparison with liver, and the highest value was determined at age 30 days in group B (3.22μg.g⁻¹ DM).
Ključne riječi
Hrčak ID:
164893
URI
Datum izdavanja:
17.6.1994.
Posjeta: 701 *