The correlative dependence of sires gametogenesis on heliophysical factors

УДК 636.2.082.12

 There has been identified the bulls with the maximum ejaculate volume

belonging to the line Montvik Chieftain 95679, exceeding by 23,5% on this parameter

bulls of the Simmental lines. The bulls of different genotypes show a reliable negative

correlation in the main signs of sperm production with cosmophysical indicators of solar

and geomagnetic activity. The Raphael’s 3111 lines bulls have been more sensitive to

the learned factors of cosmic influence than Bravo’s 6802 line bulls. Among the Holstein

lines the most stable bulls in gametogenesis have been the Montvik Chieftain 95679.

The leastest tolerance have the S.T. Rockit’s 252803 lines bulls. The generative activity

of bulls significantly has decreased with the increasing of the geomagnetic disturbance.

Comparative productivity evaluation of meadow clover (trifolium pratense l.) different varieties in the Vologda region

УДК 633.321

It was found that the highest hay yield compared to the standard Trio

variety was observed in the Taezhnik variety (105.3 C/ha) in the conditions of the

Vologda region on sod-podzolic medium loamy soil for 2017-2019. The variety to

control provided a significant increase in yield of 15.9 C / ha (18%). The Allure variety

showed a significantly lower yield compared to the standard (17 C / ha, i.e.19%). The

rest of the studied Ranniy-2 and Roseta varieties provided the yield at the standard

level. The tested varieties of meadow clover showed good and almost excellent winter

hardiness which is 4-4.7 points. The content of “raw” protein exceeded the control

grade of Ranniy-2 (by 1.2%), Taezhnik (by 0.9%), Allure (by 0.5%). For the collection

of “raw” protein with a yield of green mass, the Allure and Roseta varieties were inferior

to the standard by 153 and 11 kg / ha. Ranniy- 2 and Taezhnik varieties provided the

collection of “raw” protein with a green mass yield of 1155 and 1245 kg/ha, respectively,

exceeding the standard by 173 and 263 kg / ha. The average and large correlation of

such indicators as the yield of clover varieties and plant height from r = 0.551 to r =

0.743 was revealed. A weak relationship was established between such indicators as

leafiness and yield (r = 0.434 – 0.525), yield and protein content (r = 0.451), protein

content in the green mass and plant leafiness (r = 0.448).

Сultlvation of narrow-leaved fireweed (сhamaenerion angustifolium) together with maral root (rhaponticum carthamoides) (willd) jlin

УДК 633.2:582.886

The authors investigated the ability of narrow-leaved fireweed

(Сhamaenerion angustifolium or Ivan-chai) to grow together with maral root

(Rhaponticum Carthamoides) (Willd.) Iljin. in the Northern part of the non-chernozem

soil zone of Russia. Both plants were found to start grow immediately after melting

of snow cover. The phenological flowering period of the maral root occurs earlier than

that of the narrow-leaved fireweed. The experiment has revealed that in a mixture of

grasses, narrow-leaved firewood is being suppressed. In the third year of life there is

a thinning of the stalk of Ivan chai due to a drop in the shoot-producing capacity of its

roots. During the period of the experiment the productivity of the grass mixture was

lower, than in control version by 5 t/ha. In the control version, the metabolic energy

and raw protein collection were 11.2 GJ/ha and 179.3 kg/ha higher than in the grass

mixture. The maral root in the third year of growth develops a strong root system and

a leaf rosette, which results the unfavorable conditions for the narrow-leaved fireweed

(Сhamaenerion angustifolium) and it becomes obvious that it is displaced by the maral

root from the cenosis composition.

Quality and nutritive value of Galega orientalis silage depending on the moisture content of the silage mass

УДК 636.085.052

In the experiments we studied the effect of the moisture content in

plant raw materials when making silage from Galega orientalis on its nutritional value

and quality. It has been found that the moisture content of raw materials has a great

impact on the quality and nutritional value of silage. The lower the moisture content

in the plant raw materials when making silage, the more nutritious and better silage is

obtained, which must be taken into account when preparing it.

Forming yielding capacity of green and dry mass of topinambur depending on its harvesting time

УДК 635.24:635.072

The article presents the research results on the influence of topinambur

harvesting time on the green mass and absolute dry matter yields. The one-factor

experiment has been launched according to the method of B.A. Dospekhov in the

educational and scientific experimental field of Perm State Agrarian and Technological

University. The experiment has followed the following scheme: 1 – gathering of green

mass on the 10th day after the flowering phase, 2 – gathering of green mass on the 20th

day after the flowering phase, 3 – gathering of green mass before tuber lifting. According

to the research results, the harvesting time of green mass has not had any influence

on its yielding capacity (13.1‒15.5 t/ha), or the dry mass yield (3.01‒3.44 t/ha). There

is a tendency for the green mass yield to decrease from an earlier harvest period to a

later one – by 1.7‒2.4 t/ha and dry mass-by 0.16‒0.43 t/ha. The plant survival rate

(88-92%) and the plant standing density (3.2‒3.4 pcs/m2) before harvesting have not

shown any dependence on the harvesting time. A significant increase in absolute dry

matter content of the crop continues until the flowering phase and reaches its maximum

of 6.45 t/ha. Due to the outflow of nutrients from the aboveground part of the plant to

the ground one, there is a sharp decrease in dry mass yield by the first harvest time (by

3.28 t/ha) after the flowering phase. The maximum height of plants is also found in the

flowering phase –153 cm, after which the plant stops to grow. The highest vitamin C

content in topinambur green mass has been found when mowing it before tuber lifting

(65.6 mg/kg), the highest carotene content has been observed when harvesting the

green mass on the 10th-20th day after the flowering phase (17.2‒18.0 mg/kg), the

highest crude ash content has been found when harvesting on the 20th day after the

flowering phase (3.4%).

Nutrition and quality indicators of succulent feeds of the vologda region in accordance with the requirements og GOST

УДК 636.2.085(470.1/.2)

The article covers the main requirements for the bulky food quality

when feeding dairy cattle. Silage, wilted grass silage and haylage are succulent feeds

that form the basis of dairy farming diet and can reach up to 80% of it. A comparative

study of succulent feed has showed that silage and haylage harvested from wilted

perennial legumes contain more whole protein (by 29.14% and 37.25%, respectively),

feed units (by 12.00% and 19.23%) and less dry matter (by 24.93% and 4.36%),

crude fiber (by 1.66%). The deviation of haylage nutritional value in comparison with

GOST requirements is insignificant in terms of dry matter content by 12.47%, whole

protein by 1.11%, crude fiber by 2.69% and sugar by 4.48%.

     Consequently, the lack of feed and errors of their use, that lead to a decrease in

milk productivity and loss of product quality, can be compensated for by the bulky feed

quality and full-value in the used diet. Thus, tests of harvested feed aimed at adjusting

the rations in the system of normalized feeding of animals, which allow realizing the

inherent productive capabilities of dairy cows, are of great importance.

A medical case of diagnosis and treatment of hepatoid glands adenocarcinoma in a dog, the use of wound healing techniques of humane medicine

УДК 619:616:636.7

The paper presents a diagnostic approach to a patient with a suspected

malignant disease. Morphological description of the cytogram, cell morphology and

tumor differentiation have been given. Surgical treatment (excision of the tumor) has

been performed applying the wound healing techniques of humane medicine used in

the removal of perianal fistulas.

Influence of bulls on the reproduction indicators of daughters taking into account their productivity

УДК 636.082

The main objective of the development of dairy cattle breeding is to increase

the breeding productive characteristics, taking into account the preservation of the

reproductive qualities of animals. The research was conducted on the basis of data

from the breeding plant for black-and-white cattle breeding OOO “Zazerkalie” in the

Vologda region. Bulls-improvers were determined by the complex of selected traits,

taking into account the linear affiliation: Meson 3097402441; Retirement 11720463 of

the line of the R. Sovering (1st lactation of daughters). It is recommended to use the

best breeding material (seed of breeding bulls, breeding young), which allows the next

generation to get a reliable improving effect on the selected characteristics.

The influence of cows’ breeds on the quality indicators of milk

УДК 636.082.1

In modern conditions of breeding dairy breeds of cattle, an important

element of the study is the influence of breed and quality indicators of milk. The studies

were carried out in 2019 on the basis of the SHPK “Plemzavod Maysky” Vologda region

on the quality indicators of milk from Ayrshire and black-and-white cows in the amount

of 15663 milk samples. Based on the results of milk samples, a research database on

milk quality indicators was formed and a comparative characteristic was carried out

taking into account the season of the year. As a result of the research, all analyzed

breeds have high quality indicators of milk that meet the requirements of State Standard

throughout the year.

Improving the Design Efficiency of Mechanical Mixing Machines of Bulk Capacity Vessels

УДК 637.1.02:004.942:66.063.8

In the article a comparative assessment of the mixing devices has been carried out, data have been given on the structural materials used in their design. The processes of computer modeling and calculation of the stress state of the mixing machine design using the SolidWorks Simulation application have been described. The design characteristics of the blade type stirrer have been substantiated.



Development of safety management system elements in the production of carbohydrate-protein product

УДК 637.344.8

The article shows the feasibility of implementing the principles of HACCP in the production of a carbohydrate-protein product based on curd whey concentrate. A risk analysis is carried out in the production of a carbohydrate-protein product, the potential sources of hazardous factors are substantiated. It was established that the most severe consequences can be observed from the presence of pathogenic microorganisms, mycotoxins, toxic elements (lead, arsenic, cadmium, mercury), pesticides and radionuclides in the product. However, the highest probability of implementation exists when the product is colonized with bacteria of the Escherichia coli group (coliforms). The structure and content of the programs of preliminary events, obligatory production programs are determined, a monitoring system for critical control points is developed, which allows them to be controlled on the basis of planned measures or observations.



The rationale for the use of rosebay willowherb (chamaenerion angustifolium) in the production of dairy products

УДК 637.345

The article is devoted to the rationale for the use of water-based rosebay willowherb extract in canned milk technology in order to increase nutritional value. The article presents the data on the nutrient composition of water-based rosebay willowherb leaves, and calculations of daily requirements for vitamins and minerals when consuming skimmed milk with sugar, produced with the addition of the water-based rosebay willowherb extract. It was found that adding water-based rosebay willowherb extract to the formula of skimmed condensed milk with sugar will give the product functional properties by increasing the content of manganese, calcium and vitamin B6.



Gelled dessert products with using fractional components of curd whey

УДК 637.146

The possibility of using nanofiltration concentrate of curd whey in the technology of gelled dessert products has been studied. The expediency of using nanofiltration concentrate and vegetable fillers to increase the nutritional and biological value of the gelated product has been shown. Rational proportions of gelatin and vegetable fillers have been established, and their influence on the quality indicators of the finished product have been studied. The technological scheme has been developed and technological modes of production have been established. The biological value of the products has been determined.



Productivity of varieties of jerusalem artichoke with different density of standing

УДК 635.24

The work presents the results of a three-year field three-factor experiment. The productivity of Jerusalem artichoke (Skorospelka and Interest varieties) has been researched on the soddy podzolic soil with different plant stand: 47,6; 31,7; 20,4 thousand plants/ha; with two variants of mineral nutrition (calculated dose by the balance method and for full compensation of nutrient removal). It has been found that the best productivity has the Interest variety in raw (69,8 t/ha) and absolutely dry (15,4 t/ha) biomass. The most optimal plant stand for both varieties is 47,6 thousand plants / ha (planting pattern 70 x 30 cm), which provides 27,0 t/ha of tops, 54,6 t/ha of tubers from Skorospelka variety, 17,4 t/ha of absolutely dry biomass and the efficiency factor is 0,61, in the Interest variety: 53,4 t/ha of tops, 40,1 t/ha of tubers, 18,8 t/ha of dry biomass, the efficiency factor is 0,42.



Biochemical blood status in the intact pregnant cows and in those infected with the bovine leukemia virus

УДК 619.616-006:636.2/578.828.11

The aim of the research is to determine the differences of biochemical blood parameters in the intact cows and in those infected with the bovine leukemia virus (BLV). The feeding and keeping conditions for the livestock of both the control and experimental groups were similar, provided by the technology of the farm. Studying the blood samples was performed using traditional laboratory diagnostics methods. The results of the study were processed using biometric methods with determining the level of confidence based on the Student’s criterion. Significant differences were found between intact and infected animals in a number of indicators. The differences revealed in the biochemical parameters of the blood in BLV-infected and intact cows may indicate the development of pathological processes in the animals infected with the bovine leukemia virus.



Maize cultivation in conditions of high soil fertility and its diversity: macro-factor approach to modern agronomy

УДК 633.15/631.583

The research conducted on corn silage cultivation in 2009-2019 in the conditions of the agricultural enterprise “Mazolovogaz” AC at “Vitsebskoblgaz” UE allowed us to determine the main directions for optimizing the soil structure for silage, which should be reduced to 15.0-20.0% with an increase in productivity. The formation of agrophytocenosis should be accompanied by strict compliance with the rules of maize production, taking into account the peculiarities of seeding and creating sufficiently dense crops, as well as the use of rational approaches when applying organic and mineral fertilizers on sloping lands in conditions of variegated soil fertility.



Influence of manure, cover crops and combinations of them with a degrader of stubble on soil fertility and crop yields

УДК 631.86:631.452:631.559

The work gives a comparative assessment of the effect of manure, green manure and combinations of them with a stubble degrader on the supply of dry biomass, accumulation of total carbon in the arable layer of meadow-chernozem soils, crop yields and quality of crop production. The current research has shown that the effect and aftereffect of oilseed radish green manure, legume green manure and oilseed radish green manure combined with a stubble degrader fallow lands have not been inferior to the manure fallow land in terms of biomass accumulation. The maximum biomass accumulation has led to a complex effect and aftereffect of manure and legume green manure with a stubble degrader. A combined use of manure and legume green manure with a stubble degrader has had the most significant effect on the accumulation of total carbon. Manure fallow land in combination with a stubble degrader and green manure fallow lands with legume green manure in combination with a stubble degrader have had the highest effect on the yield of winter wheat and maize as well as the quality of crop production.



Technological aspects of increasing the productive longevity of dairy herds

УДК 636.2.034

The research has been carried out to establish the duration of productive use of breeding stock in the breeding farms of the Omsk region. As far as the productive use duration, the cows kept in free stall housing are found to have a significant advantage compared to the tied cows, the difference being 177 days or 17.2 %. A negative correlation has been established between the abundance of milk and the duration of productive use of cows in tied herds.


Sown fallow land as a predecessor of winter wheat in organic crop farming of the Lower Volga region

УДК 631.581.2:631.582:633.11:631.147(470.44/47)

The article presents the research results on the effectiveness of fallow lands with green manure crops as predecessors for winter wheat in reproducing the fertility of light chestnut soils, productivity and quality of winter wheat grains in organic crop farming of the Lower Volga region. The research has shown that replacing summer fallow with a fallow with phacelia as a green manure crop increases the supply of organic matter to the soil in comparison with the control variant by 3.09 t / ha, ensures a positive balance of organic matter +4.05 t / ha. In this case, the largest amount of nitrogen, phosphorus and potassium enters the soil with organic matter of winter wheat, respectively, 41.2; 8.6 and 13 kg / ha. It provides the highest positive balance of basic nutrients of nitrogen, phosphorus and potassium in the soil, +16.2; +2 and +11.2 kg / ha, respectively and more economical consumption of soil moisture by winter wheat plants: the water consumption coefficient is 147.5 mm / t; the grain quality of this crop and productivity has improved by 7.5 %.


Аftereffect of the biomodified organic-mineral fertilizers on agro-podzolic soil

УДК 631.82:631.895

One of the tasks facing the agrochemistry is the search for fertilizers of prolonged action, with the gradual release of nutrients and having aftereffect. Under the conditions of a stationary field experiment on soddy-medium-podzolic light loamy soil in the conditions of the Northern Non-Black Soil Zone, the effectiveness of organic- mineral fertilizer (OMF) made on the basis of lowland peat with the addition of macro- and microelements, as well as humic acids manufactured by OAO the Buyskiy Chemical Plant has been studied. This work presents the data on the aftereffect of ОMF, modified with BisolBifit biological preparations (strains of Bacillus subtillus Ch-13), Phosphatovite (strains of Baccillus mucilaginosus), PhosphoActive (Bacillus subtillus + Baccillus mucilaginosus strains), on the yield and quality indicators of clover meadow and oats. The effectiveness of various grades of organic-mineral fertilizer has been compared both with control variant (without fertilizers) and with variant with complex mineral fertilizers, the dose of which has been equal and averaged N30P24K45 for crop rotation. Studies have carried out at 2 levels of soil acidity: pHKCl 5.1-5.3 and pHKCl 5.7-5.9. In a 5-field field crop rotation, the effect of fertilizers has been studied on vetch-oat mixture, winter wheat and spring barley, and the aftereffect of fertilizers - on the clover meadow and oats. According to the results of the experiment, it has been found that the use of ОMF with BisolBifit increases the crop yield compared to the control variant by 26 % in the first year and by 11 % in the second year of fertilizers aftereffect at both levels of soil acidity. The positive effect of the studied grades of ОMF on the increase in the collection of «crude protein» (on the average by 15-18%) compared with the control has been noted. The ОMF, modified with BisolbiFit subsequently contributed to a more significant increase in yield and the collection of crude protein compared to other grades of ОMF, although there have been no statistically significant differences between them.

Monitoring the viability of dairy cows

УДК 636.2.084:612.12(470.1/.2)

The article presents a working model for monitoring the basic body processes in animals. The main approaches to the implementation of the proposed model are described and disclosed. It has been indicated that the requirements for assessing feed quality and actual nutritional value include the task core to be solved not only in order to control viability, but also to increase the dairy farming efficiency at agricultural enterprises of the Vologda region. More than 5 types of feed samples, more than 50 biological material samples (blood of dairy cows), 30 samples of cicatricial content have been studied during the experiment. The results of feed analysis are the basis of the method and the starting point for the implementation of the tasks. The presented parameters of the biological test are used to assess the level of metabolic processes in the dairy cows body, to predict further productivity, reproductive qualities and to prevent the health of animals. The methods combination is the full-valued feeding of dairy cows. The importance of control in the normalized feeding system is not only in monitoring the productive herd, but also allows to control the dairy activity of cows. The future researches are connected with improving the control system of dairy cows viability that to be detailed in the direction of the ruminants digestion.


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