EFFECTS OF DRIED DISTILLERS GRAINS WITH SOLUBLES ON PRODUCTIVITY AND WELFARE OF GROWING PIGS

Danail Kanev

Резюме: To study the effect of wheat Dried Distillers Grains with Solubles (wDDGS), in the Agricultural Institute, Shumen, was initiated a scientific and economic trial on a total of 48 pigs from the Danube White breed divided into 3 groups of 16 pigs each. The trial started immediately after pig weaning – at 10 kg live weight and ended at 30 kg. The pigs were allotted by pedigree, body weight, time of weaning, sex, age, and number. The animals were kept in group boxes of 8 heads and fed ad libitum. The pigs from the second and the third group received compound feeds with 30% wDDGS so to replace 61% of the soybean meal protein equivalent. The feed for the pigs in the third group was supplemented with 0.0175% enzyme preparation Hostazym Suis. Hostazym Suis contains mainly endo-1,4-beta-glucanase. It was established that the protein equivalent replacement of 61% of the soybean meal with 30% wDDGS had negative effect on growth and feed utilization in pigs from 10 to 30 kg live weight. The inclusion of the enzyme preparation containing mainly beta-glucanase in 30-%-wDDGS compound feeds resulted in improved average daily gain by 5.75% and feed conversion per 1 kg gain by 6.32% in pigs from 10 to 30 kg live weight. Feeding time also increased with the inclusion of 30% wDDGS in the compound feeds.

Ключови думи: DDGS; enzymes; glucanase; pigs

Дата на публикуване: 2023-03-08