This research reviews an analysis of several problems of milk production process as well as fast methods of dairy cows' health control widely used in the countries of high-level dairy breeding. The results of milk analysis via test stripes reveal that about 30% of cows during transition period - phases transit 2 and 1st phase of lactation - have clinical and subclinical ketosis marks what comes as one of the reasons of cow's low productivity. Evaluation of cows' fatness evidence that only 46,4% of tested animals have normal fatness according to the appropriate lactation period, whereas other animals have too high fatness index and only very small part - 1% have extremely low fatness index. Cows' obesity leads in future to ketosis and disturbance in metabolism. The research also revealed nonconformities in boxes size, they do not satisfy requirements of comfortable Holstein cows handling. The article provides recommendations on implementation of tested methods based on survey in order to suggest the ways of milk production efficiency increase
The process of the presowing seed treatment with alternating electromagnet field of the commercial frequency (EMF CF) 50 Hz is economically efficient. The use of the EMF CF 50 Hz in the unit with ring pole pieces allows increasing the germinating energy and power. The electromagnet seed treatment in the units with ring pole pieces is the perspective process of the presowing treatment which does not make unhealthy influence on the operating personnel. At the presowing treatment we have to take into account three factors, they are the arrangement of seeds in the working chamber, the time of treatment and the seed humidity. In this article the authors recommend to promote the unit consisting of a magnetic circuit with ring pole pieces of the rectangular cross-section, a magnetizing coil and an embedding of the non-magnetic material in the working chamber which allows increasing the germinating energy of spring barley by 10% and the germination by 7%. As field experiences have shown the highest seed germination and good crop capacity take place in the work chamber zone with boundaries R1=0,012 m and R2=0,035 m at seed humidity from 12% till 18% and the time of seed treatment is 0,9-2,75 s. The addition to crop capacity has run to 7% as a result of the spring barley treatment
The article presents a comparative analysis of national
economic importance of winter barley in relation to
other crops. The advantages of winter barley in a
number of factors have been observed. The information
about acreage under crop and gross yield of this crop is
presented in an article in the form of tables. The authors
have studied such important factors as a dynamics of
acreage of crop yield in the main regions of cultivation.
Against the overall negative dynamics of sown areas,
they noted a clear increase in 2013. An analysis of grain
yield of winter barley in the main regions of cultivation
by year has been presented graphically. Special
attention was paid to the Southern Federal District and
the Krasnodar Territory in particular as a major
producer of grain of winter barley. The analysis of
yields in the major regions of cultivation of winter
barley showed a clear advantage of the Krasnodar
region. The index of the average grain yield of winter
barley cultivation in this region for the period from
2003 to 2008 has been shown. Moreover, the article has
presented the role of sorts in increasing the yield grade.
We have also highlighted the issue of selection of
winter barley in our country. The desirability of
increasing the production of winter barley in the
Russian Federation has been noted as well
The results of the work experience carried out in the
poultry breeding farm of Limited Liability Company
«Incubator-poultry plant Pervomaiskaja» on the
effect of the multifunctional feed additive «Tetra+»
on productivity of males and laying hens in the
production of broiler chickens.
It is found that males experimental group receiving
the feed additive in the diet «Tetra+» have better
blood serum biochemical indices in comparison with
the control group cockerels. This indicates that the
feed additive «Tetra+» shows the properties to
improve liver function and decreased intoxication of
male manufacturers. It was revealed, that in the
experimental group increased divorce figures, while
the control group of males producing hatchability is
reduced, and the end of observation of this indicator
of the trend towards recovery is not evident. It
recorded the highest percentage yield of hatching
eggs from hens of the experimental group, while the
control group showed a tendency to reduce this
figure. Thus it may be noted that the use of a
multifunctional feed additive "Tetra +" when feeding
cocks and hens can improve productivity, reduce
bird deaths and to strengthen the protective function
of the body of birds
Progress of breeding for resistance to diseases, pests
and low temperatures is provided by cross-species
hybridization. Institute of Vine and Wine "Magarach"
is one of the leading centers of selection of grapes in
the world. The breeding program of deducing grapes at
the institute is based on the study and attracting the
world's gene pool, including and industrial of the
Russian Federation assortment of grapes. Analysis
assortment shows that the share of productive, highquality
varieties with group resistance to diseases,
pests and extreme environmental factors is very
small. The main method of selection of grapes of a
new generation who have genetically determined traits
earliness, resistance to biotic and abiotic factors is
crossing complex interspecific hybrids and forms of
their involvement with each other and with the forms
of species Vitis vinifera, belonging to different ecogeographical
groups, saturating crossing between
hybrid forms with complex features, the appropriate
selection of reference. For vigorous offspring is most
effective as a parent to use a local variety of forms of
Crohn and father - interspecific cultivar Alminsky
Modern pig farming is a leading global livestock
industry, but the organization of adequate balanced
feeding is actual for the industry. Digestibility of
metabolizable energy of feed depends on various
factors, including the content of non-starch
polysaccharides, which have a negative effect on the
digestibility of key nutrients of the feed, lead to a
decrease in growth rate and conversion efficiency of
nutrients. Enzyme preparations which composition
generally includes Xylanase, cellulase, β-glucanase
activities, may avoid the negative impact of non-starch
polysaccharides. Today's promising preparation that
combines the functions of two feed additives - feed
enzyme and probiotic, is an enzyme preparation
Cellobacterin that, due to the particular organization of
the enzyme complex, increases the digestibility of
barley grain and effectively effects on sunflower meal.
As a probiotic preparation it inhibits the development
of pathogenic microorganisms and promotes the
formation of beneficial microflora in the digestive
tract. The introduction of Cellobacterin enzyme
preparation into the compound feed with a high
content of barley grain and sunflower meal increases
the body weight of young pigs by 4.8% and reduces
the cost of feed per 1 kg of live weight gain. The
results of hematological studies found no significant
deviations from the physiological norm in the
morphological picture of the blood in experimental
animals. The group, where Cellobacterin was added,
showed higher vitamin A content by 2.8% as
compared to the control, while vitamin E is found in
both groups on the same level. Based on the results of
the research to improve the productivity and growth
rate in compound feed based on barley and sunflower
meal with higher fiber content, it is recommended to
include in the compound feed Cellobacterin enzyme
preparation at the rate of 1 kg per 1 ton of feed
The key stage of clonal micropropagation, the micropropagation sensu stricto, affords to increase the propagation index for plants, especially perennials. In this study, we consider ways to optimize clonal micropropagation of remontant raspberry cultivars. It is found that microsprout regeneration rate is 78,5–96,0 % on the multiplication s. str. stage. The most multipurpose nutrient medium is selected with containing 0,5 mg/l both of BAP and GK. When one uses this medium, regeneration rate runs 79,0–94,0% depending on genotype with sprout high running 24,8–32,7 mm and sprout number – 1,2–2,2 per node. The optimal duration of growing cycle is 30 days with the propagation index within 6,6–7,8, depending of genotype
Nitrogen supply of soils is an important factor in the successful cultivation of agricultural crops. Nowadays, in the Central Black Earth region there are planted orchards with high density of trees, with installed systems of drip irrigation and fertigation. Such orchards are relatively new, particularly in this region. Fertigation ambiguous effects on soil structure and its content of nutrients, especially hydrolysable nitrogen. Therefore, the study of the distribution of hydrolysable nitrogen in the soil under the influence of fertigation and drip irrigation is important. The aim of our research was to investigate the distribution hydrolysable nitrogen in the root soil layers 0-20, 21-40, 41-60, 61-80 cm. Investigations were carried out according to conventional methods. In these layers of the soil, we have determined the content of hydrolysable nitrogen and yield. As a result, we have found that in variants with fertigation were the highest yield. In addition, with fertigation it was noted higher content of hydrolysable nitrogen in the soil as compared with the control without irrigation, especially in the deep layers 21-40; 41-60 and 61-80 cm. It was also noted increase of hydrolysable nitrogen in the soil along the periphery of the wetting
The article contains results of the study of biochemistry of some perspective table grape varieties: Aniuta, Vodograi, Nizina and Jubilee Novocherkasska, yield in 2013 from the Central zone of Krasnodar region. At the time of redy yield the combination of sweetness and acidity of fruits were favorable. The ratio of fructose to glucose was 1.69; 1.36; 2.00; 1.13, respectively, in grapes Aniuta, Vodograi, Nisina, Jubilee Novocherkasska. According to the percentage of fructose in fruit juice varieties Aniuta, Vodograi and Jubilee Novocherkasska close to each other (50.93; 56.14; 51.23%). According to the percentage of glucose similar varieties Aniuta and Nizina (33 - 34.27%), Vodograi and Jubilee Novocherkasska (41.16 - 45.22%). Sort Jubilee Novocherkasska, had content in berries close fructose and glucose. Most of fructose (66.02%) in berries variety Nizina. In berries studied cultivars organic acid content was: wine 3128 - 3861, malic 982 - 3753, citric 109 - 317, amber 3 - 115 mg / dm3. The highest concentrations of potassium and sodium cations are presented in berries varieties Aniuta: potassium - 1219 sodium - 35.13 mg / dm3 and cations magnesium and calcium in berries Jubilee Novocherkasska 46.75 and 73.64 mg / dm3. The lowest concentration of potassium and sodium cations observed in grape Vodograi, magnesium - from grape Aniuta, calcium - at grape Nizina. We studied grape bunches are large, not dense, beautiful, berries are large, harmonious taste. Tasting score fresh grapes varieties Aniuta, Vodograi, Nizina, Jubilee Novocherkasska 7.6; 7.4; 7.8; 7.8 points respectively
The article considers the results of the evaluation of
the photosynthetic activity of peach trees in intensive
plantations on clonal rootstock VVA-1 in the
formation of improved cupped spindle-shaped
crown. It is established that in the formation of
spindle-shaped crown all the parts of it have just the
right lighting, the leaves contain more chlorophyll,
they are more specific and have real productivity