Abstract
The article presents the results of experimental studies on the use of nanosized iron powder in the third trimester of gestation on the reproduction processes of sows. The studies were carried out in the conditions of the farm. The physiological state of pregnant sows was determined by hematological parameters. It was found that iron NRP contributed to an increase in the number of red blood cells and hemoglobin in the blood of sows, compared with the control 20 days before farrowing, the content of red blood cells in the blood of experimental sows was 6.3% significantly higher compared to the control, and hemoglobin by 3.8 %. For 10 days, before farrowing, respectively, by 6.9 % and 5.2% higher. The indicators that characterize the reproductive ability of sows are: multiplicity, large fertility, the number of piglets in the nest and their average live weight. The use of ultrafine iron powder in the diets of pregnant sows in the third trimester of gestation contributed to the improvement of the overall physiological state, confirmed by the improvement of hematological parameters and had a positive effect on reproductive ability. The weight of the nest in the experimental group of sows on the day of farrowing was 4.1 % higher, the large-fruiting rate was 3.1 %, compared to the control animals.
Highlights
The article presents the results of experimental studies on the use of nanosized iron powder in the third trimester of gestation on the reproduction processes of sows
Pregnant sows are sensitive to the lack of mineral and vitamin components of the diet, on which depends their health, and the offspring obtained [1,2]
The use of various feed and biologically active additives, which are an additional source of minerals and vitamins, compensates for its lack in the body of animals, improves metabolic processes, increases productivity, has a positive effect on fertility, embryonic development of offspring, and reduces the impact of stress factors [4,5,6]
Summary
The article presents the results of experimental studies on the use of nanosized iron powder in the third trimester of gestation on the reproduction processes of sows. 20 days before farrowing, the content of erythrocytes in the blood of the experimental sows was 6.3 % significantly higher compared to the control, and hemoglobin was 3.8 % higher.
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