Evaluation of the antibacterial effect of Artemisia lerchiana compared with various medicines.

Many antimicrobial substances, mainly of chemical origin, are not effective and reliable. Many of them tend to accumulate in organs and tissues and have allergic and toxicological effects and side effects. Therefore, the purpose of our research was to conduct a comparative analysis of the antibacterial effect of Artemisia lerchiana against other herbal preparations. A. lerchiana was used in the form of an infusion and essential oil extract to fulfill the set goal and objectives. For comparative analysis, tinctures of A. absinthium, Calendula officinalis L., and Chamomilla recutita L., as well as preparations based on Abies Sibirica, Eucalyptus, Limon, Bergamottae, Melaleuca alternifolia, and A. absinthium essential oils were used. As a test standard for comparing antibacterial properties, we used the Septarius chemical preparation manufactured at a biofactory. The experiment was carried out in vitro using test microbes of gram-positive Staphylococcus aureus and Streptococcus and gram-negative Escherichia coli. The results of the study showed that A. lerchiana had a high antibacterial effect against gram-positive test microbes (Staphylococcus, Streptococcus). The most effective form was A. lerchiana in the form of essential oil, which had an antibacterial effect even in low concentrations. A comparative assessment of A. lerchiana with the Septarius test antiseptic showed that A. lerchiana had a similar effect in general. In the form of essential oil, it even surpassed the effect of Septarius. It was found that A. lerchiana surpassed medicinal plants used in the experiment in terms of antibacterial effect. The obtained results of the study will be useful for scientists researching various medicinal products of plant origin and for veterinary specialists looking for therapeutic and preventive measures.

Breeding and productive qualities of ducks of the local population in northern Kazakhstan.

The production of duck meat in the republic was previously based on the use of 4-5 lines and populations of the Beijing breed, where the Medeo cross lines (M-1 paternal and M2-maternal) were the most widespread. At the same time, many domestic lines and populations, such as the cross "Bishkulskaya Tsvetnaya", "Kyzylzharsky", whose livestock is concentrated in the Northern region, represent rich genetic material and can be used to create new crosses. This article describes the productive and breeding qualities of ducks of the local population in the Northern region of Kazakhstan, the data obtained make it possible for further purposeful breeding work to create, preserve highly productive poultry, providing highly efficient production of eggs and meat, adapted to both industrial conditions and conditions of keeping in small-scale and farms. On the basis of "Bishkul Poultry Farm" LLP, we obtained results on the assessment of productive and breeding indicators of ducks of the local population.