We have studied microbiota of the intestinal tract of honey bees and the effect of various preparations and feed additives, in particular hydrohemol. It was established that feeding of hydrohemol in a mixture with candy caused a decrease in the pathogenic microbiota of the digestive tract of bees. This creates the most favorable conditions for the further development of the bee colonies and, as a result, an increase in their honey production.
The article presents the results of studies to identify possible intravital markers of bone metabolism in fast-growing meat crosses. As a result of the research it was determined that the introduction of mineral components containing calcium, phosphorus, magnesium and silicon into the feed of broiler chickens on the background of the diet balanced in biologically active substances helps to activate the processes of biological synthesis in bone tissue, normalize its mineral component with a high degree of silicon assimilation and also increases the stability of the bones of the lower limbs of broiler chickens. It has been proved that in order to monitor the prevention and treatment of dyschondroplasia in meat poultry, it is necessary to use in vivo biochemical markers of bone tissue metabolism, which allow carrying out early and accurate diagnosis of bone diseases in poultry.
The authors of this article evaluated the effectiveness of the use of a feed additive based on soy protein hydrolysate of the enzymatic cleavage method in combination with iodine and selenium in broiler chickens in the framework of studying its pharmacological properties. The indicators of livestock safety in the experimental group by the end of the experiment were 100.0 %, and in the control group − 84.0 %. In the experimental group, the increase in live body weight was 13.9 % higher compared to the group that did not receive a feed supplement. According to the calculations, the cost of compound feed per 1 kg of weight gain of poultry during the growing period in the ex-perimental group was 1.8 kg, which was 14.2 % lower compared to the control group. The slaughter yield of carcasses in the experimental group was 66.7 %, while in the control group − 62.0%. During the veterinary and sanitary examination, it was determined that the meat of the experimental and control group of broiler chickens was obtained from a healthy bird and was of good quality and suitable for further processing.
Антипова Дарья Валерьевна аспирант РИНЦ SPIN-код 1750-6112 Antipova Darya Valeryevna postgraduate student RSCI SPIN-code 1750-6112 Краснодарский научный центр по зоотехнии и ветеринарии, Краснодар, Россия
This article presents the results from the development of a technology for producing biohumus from the feces of cattle and winter wheat straw in a biodynamic fermenter. Nitrifying agents are important for soil fertility, which is dependent on the intensity of the nitrification process. This group includes aerobic cellulose-destroying microorganisms, denitrifiers and sulfate-reducing bacteria. The ratio of these groups and their composition are changing. Therefore, the study of the quantitative ratio of microbial communities involved in the formation of biohumus was of considerable scientific interest. During the microbiological analyses, a large number of microorganisms were found to be involved in the decomposition of the organic compounds. Aminoautotrophic microorganisms represented the largest physiological group of microorganisms in the biohumus. The chemical composition of the biohumus was determined during the study and a sanitary microbiological analysis was performed. The content of gross forms of elements in the humic extract was also examined. The humic extract from the biohumus was a brown liquid with 15 g / l of humic acids, 5.0 g / l of fulvic acids, and gross forms of elements (potassium, phosphorus, nitrogen). The dry matter in the biohumus was 1.0% of the total composition and contained 0.1% nitrogen, 0.03% phosphorus P2O5 and 0.01% potassium K2O. It was found that high-quality organic fertilizer can be obtained using this technology. Keywords: biohumus, humic extract, chemical composition, sanitary-microbiological analysis, organic fertilizer
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