Influence of inorganic Se + vitamin E and organic Se + vitamin E on reproductive performance of young boars
Jacyno, Eugenia; Kawecka, Maria; Kamyczek, Marian; Kolodziej, Anita; Owsianny, Jacek; Delikator, Barbara (2002)
Agricultural and Food Science in Finland
MTT Agrifood Research Finland The Scientific Agricultural Society of Finland
Julkaisun pysyvä osoite on
The objective of the study was to compare the influence of the organic Se (Se-Yeast) + vitamin E and inorganic Se (Na2SeO3) + vitamin E on reproductive performance of young boars. The studies were carried on the 80 young boars. A feeding test was started on day 70 of their life. Inorganic Se group males received 0.2 mg inorganic Se + 30 mg vitamin E, those of organic Se group 0.2 mg organic Se + 60 mg vitamin E in 1 kg of the diet ration. The experiment was performed in two seasons: I - June-September, II - January-April. On day 180 of life (close of the test), the boars were subjected to live evaluation: testes volume, libido level, semen characteristics as well as Se content and glutathione peroxidase (GSH-Px) activity in seminal plasma and blood serum. The boars of group inorganic Se obtained higher (P = 0.01) selection index of live evaluation than those of the group organic Se. The boars of group organic Se were characterized by better libido level, higher (P = 0.05) concentration and total number of spermatozoa in an ejaculation, lower (P = 0.01) percentage of semen with morphological changes and higher (P = 0.01) value of osmotic resistance test of acrosome membranes in spite of the fact that GSH-Px activity in seminal plasma was lower when compared with those of the group inorganic Se. The findings show that organic Se + vitamin E has been of a more favourable influence on reproductive performance of young boars than that of inorganic Se + vitamin E. More favourable influence of organic Se + vitamin E was observed in winter-spring season than in summer.