The content of lysine in pig feeds with the use of silage corn as the basis for high productivity

Abstract

Purpose. To conduct research on fattening pigs on rations balanced in lysine at the level of 6.6%, methionine with cystine – 3.0%, tryptophan – 1.0%, and threonine – 3.8% with a normalized need for macroand microelements and vitamins to ensure the effective use of silage corn grain with a minimum content of forage wheat in the compound feed (35%) and without barley and other cereals. Methods. The experiments were carried out on 2 groups of fattening young pigs (breed Large white x Landrace) according to the method of analog groups. Feeding was carried out in accordance with the established norms of accounting for the eaten feed, which was carried out after each feeding period. Control slaughter of 3 heads from the group was carried out. Blood for research was taken at the moment of slaughter. Results. The study of influence of the lysine content in the diet with the use of silage corn on the fattening and meat qualities of pigs was carried out. Modern hybrids of corn are high-yielding (up to 10 t of grain per ha and more). The technology of preserving wet corn grain has been widely introduced in many farms. Studies have established the effect of using silage corn grain with a minimum introduction of mixed feed (grain mixture) of wheat with a 6,6% lysine content in crude protein compared with the same compound feed, but with a content of up to 4.8% of lysine in crude protein Average daily gains of the fattening livestock in the studied group were 752 g and 688 g – in the control one. The difference is 9.1% in favor of the experimental group of pigs.

Productivity and slaughter performance of pigs using a mineral feed additive

“…Ефективне і раціональне використання їх в годівлі свиней дає змогу значно збільшити коефіцієнти перетравлення та засвоєння поживних речовин корму, підвищити продуктивність і збереження тварин. Сучасні науковці ведуть пошук кормових добавок нового покоління, серед них: мінеральні елементи, вітаміни, фітобіотики, ферменти, пробіотики та інші (Zhao et al, 2015;Kulyk & Tkachenko, 2020;Syrovatko & Vuhliar, 2021).…”