Innovative approach to improvement composition of diets in industrial pig breeding in the South European part of Russia

Introduction. Research was carried out in the direction of improving the mineral composition of the diets of breeding boars in the conditions of an industrial pig-breeding complex.

Materials and methods. The studies examined the effectiveness of using the tested feed products in the diets of breeding boars: natural Volgograd bischofite separately and together with the organoselenium preparation Selenopyran. Control boars received as the main diet (OR) – complete feed; 1st experimental group – OR with the addition of natural bischofite at the rate of 8 ml per producer per day; 2nd experimental group – OR with the same amount of natural bischofite and together with the drug Selenopyran calculated at 0.833 mg per 1 kg of complete feed.

Results and conclusions. Introduction of natural bischofite into diets separately and together with the drug Selenopyran had a positive effect on the reproductive qualities of breeding boars, morphological and biochemical status of their blood; productivity of breeding stock. Boars of the experimental groups had higher ejaculate volume indicators by 8.23-9.76%, sperm concentration in 1 ml of sperm by 5.53-7.83%, sperm activity by 6.82-9.09% than in the control. The producers of the experimental groups also had a higher number of red blood cells in their blood, leukocytes and higher hemoglobin content, and in blood serum - higher concentration of total protein by 1.56-2.18% and albumin by 6.81-7.89%. Compared to control, in breeding stock inseminated with sperm from experimental group boars, piglets had a live weight at birth higher by 3.65-5.84%, when weaned from sows at the age of 24 days – by 6.45-7.10%, and more piglets were received for weaning. Moreover, the best results were obtained with the joint use of the tested feed products.

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