Bulgarian Journal of Agricultural Science
Array ( [session_started] => 1720969431 [LANGUAGE] => EN [LEPTON_SESSION] => 1 )


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Application of vitamin-mineral supplement in intensive use of boars and its effect on reproductive qualities
Stepan Batanov, Aleksandr Perevozchikov and Lyudmila Novikova
Abstract: The aim of the research was to study the influence of the vitamin-mineral supplement with amino acids on reproductive qualities of breeding boars in their intensive use as well as the comparative analysis of reproductive qualities of sows inseminated with sperm of breeding boars of control and experimental groups. The results of scientific and practical experiment have shown that the application of the vitamin-mineral supplement promoted the increase of ejaculate volume of boars, sperm concentration, and sperm motility and survival capacity. The ejaculate volume of Yorkshire boars has increased by 5.8% (p ≤ 0.05), of Landrace boars by 12.0% (p ≤ 0.05). Sperm concentration in 1 ml of ejaculate in boars receiving the vitamin-mineral supplement has increased respectively by 3.6% (p ≤ 0.05) and 1.0% (p ≤ 0.05). The sows inseminated with sperm of boars of the experimental group had better reproductive qualities. Conception rate has increased by 2.7-2.9%, prolificacy by 4.2-4.4% (p ≤ 0.05), and large fetus ability by 0.06-0.08 kg or 5.3-6.4% (p ≤ 0.05).
Keywords: breeding boars; conception rate; large fetus; prolificacy; sows; spermatozoids, ejaculate; vitamins
Date published: 2020-04-30
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