O. Cherniavskyi*, S. Babenko, V. Bomko, L. Dyachenko, M. Slomchynskyi, S. Chernyuk, O. Kuzmenko, O. Tytariova, А. Horchanok, V. Polishchuk, V. Bilkevych, S. Polishchuk and N. Ponomarenko

The productivity and mineral exchange in the body of young pigs of large white breed was studied. Pigs of research groups, in absolute weight gain, exceeded control by 1.9-5.7 (P<0.01). Pigs of the third and fourth research groups had the highest absolute gains over the entire period of the experiment. Theirfeed was mixed with Protecto-active at the rate of 1.5 and 2.0 g per 10 kg body weight, or (3 and 4 g per 1 kg of feed). The balance of calcium and phosphorus in the body of pigs of all groups was positive, but calcium and phosphorus of pigs of the 3rd and 4th experimental groups were better absorbed, although no significant difference was found.

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