Productivity and hematological indicators of pigs feeding the drug “Kronocid-L”

The effect of feeding the drug “Kronocid-L” with the content of chelated compounds of microelements on the productivity and hematological indicators of fattening pigs was studied. The experiment was conducted on two analogous groups of 75-day-old fattening young pigs, 12 heads in each, obtained from crossing sows of the large white breed with boars of the landrace breed. The experiment lasted 105 days and consisted of two periods: an equalization period (15 days) and a main period (90 days). Experimental animals of the control group consumed the main diet during the equalization and main periods. The compound feed “Grower” included corn – 25 %, wheat – 25 %, barley – 23 %, sunflower meal – 12 %, wheat bran – 7 %, soybean meal – 3 %, and BMVD – 5 %. “Finisher” compound feed included barley – 38 %, wheat – 24 %, wheat bran – 12 %, corn – 9 %, sunflower meal – 9 %, and BMVD – 4 %. In addition to the main diet, the experimental group was fed the “Kronocid-L” with the content of chelated compounds of microelements at 1 liter per 1 ton of water. The drug “Kronrocid-L” is a transparent green-blue solution that contains chelate compounds of trace elements (iron, zinc, manganese, and copper), formic, acetic, orthophosphoric, lactic, citric, succinic, and benzoic acids in an amount of 19 % by weight in an aqueous solution. Experimental animals that received the drug “Kronocid-L” during the first stage of the primary period (75–110 days) and the second stage of the primary period (111–165 days) outweighed the pigs of the control group by live weight by 5.9 and 7.4, respectively %, with an average daily increase of 9.5 % (P < 0.05) for the entire period of fattening. Administration of the drug “Kronocid-L” to pigs increases the number of erythrocytes in the blood by 6.6 % (P < 0.01), eosinophils by 12.7 % (P < 0.05), rod- and segmentonuclear neutrophils, respectively, by 5.7 % (P < 0.01) and 8.09 % (P < 0.05) compared to the control group. At the same time, under the influence of the feed additive, there is a tendency to increase total protein content and a probable increase of albumins by 14.1% (P < 0.01).