Studies of nanofiltration and electrodialysis effect on the mineral composition of curd whey
The article presents data of nanofiltration and electrodialysis effect on the mineral composition of curd whey.
Theoretical and experimental base preparation for creating a sports beverage with rehydration and hondroprotective action
The paper shows theoretical and practical prerequisites for the formulation of a sports beverage recipe that has rehydration and chondroprotective properties. For this purpose, two types of dairy raw materials were chosen for the objects of research: curd whey and permeate, obtained with industrial skim milk ultrafiltration, as well as aqueous solutions of chondroitin sulfate.
Concentrated Milk – Containing Products with Sugar for Confectionery Industry
In this work the optimization of the formulations of concentrated milk-containing products with sugar for confectionery production has been carried out. The “Search for solutions” method has been applied along with MS Office Excel add-in. Samples with desired organoleptic properties have been obtained, their physicochemical parameters have been determined, the costs have been calculated.
Festulolium and domestic ryegrass use for pasture agrophytocenosis creation
The article presents the research experiment undertaken in 2017 in the experimental field of the North-Western Research Institute of Dairy and Grassland Farming, i.e. a separate division of the Federal State Budgetary Institution of Science Vologda Scientific Center of the Russian Academy of Sciences. The study has shown that the use of new species and varieties of grasses (Festulolium and domestic ryegrass) have positive results in creating pasture agrophytocenosis. It contributes in creating grass stands with a high content of cultivated grasses up to 89%, increasing yields by 1.5 times and obtaining highly nutritious pasture feed with a protein content up to 16 - 19.5%.
Productivity of winter rye grain, yield of nutritive elements by the culture when using fertilizers in the Vologda region
The calculated fertilizer systems have significantly increased the yield of the Volkhov winter rye in grain by 52-67% and in straw - by 50-59% on the soddy podzolic medium loamy soil of the Vologda region on average for three years of research. Applying fertilizers at the rate of 1cwt/ ha in physical weight when sowing during two years out of three ones has provided a significant increase in the yield of winter rye grain. When using the calculated doses of fertilizers, phosphorus and potassium yields by a unit of production has been slightly below the planned values. When using the calculated doses of fertilizers, nitrogen and potassium yields have increased by 5-6 kg (20-24%) and 3-7 kg (17-39%) compared to the control, respectively.
Аgronomical assessment of efficiency of introducing various fertilizer doses for the crop rotation cultures
On the sod-podzolic medium-loamy soil of the Vologda region, the calculated fertilizer systems have increased productivity by 30-94% on average for 3 years of the research compared to the no-fertilizer option, by 33 - 49% compared to the sowing fertilizer (for cereals and annual crops and applying fertilizer when planting for potatoes). The use of fertilizers provided a high cost of 1kg of active material by productivity gains of all studied crops, and for the research years there has been the highest cost - 23 kg of fodder units. The calculated doses of fertilizers have differed in cost. The organic and mineral system of fertilizer with saturation of 270 kg d. century per 1 hectare has accounted for the highest payment, and at the level of mineral systems with saturation in 294kg of active material per ha. The cost upon the estimated doses of fertilizers has amounted to 8.8 to 10.9 kg of fodder units per 1kg of active material.
The influence of cortisol on some immunological parameters of carps
This paper presents an assessment of changes in some indicators of the immune system in the control and experimental group of carp under the influence of endogenous cortisol. It was found that when the level of cortisol increases the activity of cellular immunity in fish created by leukocytes increases as well. Other indicators of the immunological status decrease with the increase of this hormone.
Productivity of spring rape varieties and its hybrids in the Upper Volga region
Представлены результаты научных исследований по особенностям формирования урожайности 16 отечественных и зарубежных сортов и гибридов ярового рапса, выполненные в производственном опыте на хорошо окультуренной дерново-среднеподзолистой среднесуглинистой почве в Ржевском районе Тверской области в ОАО «Агрофирма «Дмитрова гора». Площадь учетной делянки – 1 га, повторность – 2-х-кратная, площадь под опытом ‒ 35 га. В результате выявлено, что биоразнообразие ярового рапса, а также редьки масличной и сурепицы, позволяет выбрать для возделывания в условиях Верхневолжья наиболее адаптированные и продуктивные сорта и гибриды. Наиболее высокие урожаи маслосемян сформировали зарубежные гибриды Миракль F1 (2,36 т/га), Калибр F1 (2,23 т/га), Салар КЛ (2,14 т/га) и Маджонг (2,07 т/га), а также отечественный сорт Викрос (2,11 т/га). У этих сортов и гибридов Кхоз колебалось от 0,19 до 0,36. На кормовые цели с уборкой зеленой массы в фазу цветения более пригодны: редька Снежана, гибриды ярового рапса – Драго, Маджонг, Калибр F1 , обеспечивающие сбор зеленой массы 25,2–27,4 т/га, абсолютно сухой ‒ 3,61–4,22 т/га.
The analysis of the reproductive qualities in dairy cows depending on the Dairy Comp 305 system of electronic registration
the use of information technologies is an important factor for improving productivity in animal husbandry and the industry on the whole. Electronic programs such as Dairy Comp 305 can help to achieve greater results. The program is installed for the first time in the Vologda region at «PZ Pokrovskoye OOO» (Limited Liability Company). There is no information about the effectiveness of its use. The article presents the characteristics of the company and the main reproduction indicators in 2013-2018. The main direction of «PZ Pokrovskoye OOO» (Limited Liability Company) is a dairy cattle breeding, stock breeding to improve the genetic potential of black-and-white cows by means of Holstein method. Owing to the program at «PZ Pokrovskoye OOO» (Limited Liability Company) in Gryazovetskiy district the farm effectiveness is recorded and analyzed, the coordinated work of veterinarians and zootechnicians is organized, and the stuff is motivated. By 2018 the service period at the enterprise is reduced to 89 days, intercalving distance to 365 days because of competent purposeful work. The calf crop is 92,4%. This fact allows to select low production cows more effectively, to enter the cows that have genetic potential, to increase the number of dairy cows, as well as to organize better sale of young breeding stock. At «PZ Pokrovskoye OOO» (Limited Liability Company) in Gryazovetskiy district economic effect of applying the electronic system (without increasing productivity and growth of livestock) is 11 925 thousand rubles.
The effect of feed with extruded grains and phytobiotics on meat productivity and health of feeder young cattle
The article describes the results of a comprehensive study extruded feed and extruded feed with phytobiotics influencing on the health and growth of feeder young cattle (Ayrshire breed). The research methods: clinical, microbiological, statistical, biochemical analysis. The results of the study showed that the use of extruded grains and extruded grains with phytobiotics increases meat productivity, has a positive impact on the development of animals, reduces the cost of production per production unit.
