Feeding and killing indicators of pigs using the drug “Kronocid-L”

The effect of feeding the drug “Kronocid-L” with the content of chelated compounds of trace elements on the productivity and slaughter performance of fattening pigs was studied. The scientific and economic 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). The control group of pigs consumed the basic diet during the equalization and baseline periods. The compound feed “Grower” included: corn – 25 %, wheat – 25 %, barley – 23 %, sunflower meal – 12 %, wheat bran – 7 %, soybean meal – 3 %, BMVD – 5 %. “Finisher” compound feed included: barley – 38 %, wheat – 24 %, wheat bran – 12 %, corn – 9 %, sunflower meal – 9 %, BMVD – 4 %. In addition to the main diet, the experimental group was fed the drug “Kronocid-L” with the content of chelated compounds of microelements at the rate of 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 main period (75–110 days) and the second stage of the main 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. The use of the drug “Kronocid-L” at the rate of 1 liter per 1 ton of water allows to reduce feed consumption by 6.2 %, which is 3.0 kg per 1 kg of growth. At the end of the scientific and economic experiment, a control slaughter of experimental pigs was carried out, 4 heads from each group. It was established that feeding pigs on fattening with the above-mentioned preparation contributes to an increase in slaughter weight and slaughter yield in the 2nd experimental group, respectively, by 12,8 kg or by 15 % (P < 0.05) and 5.6 % (P < 0.05) against benchmarks. At the same time, under the influence of the feed additive, the thickness of the lard above the 6–7 thoracic vertebra decreased by 3.2 mm or by 10 % (P < 0.05) and the area of the “muscle eye” increased by 2.8 cm2 or 6 % P < 0.01).