The assessment of quantitative signs of plants of peas and comparison of hybrid lines of leafless peas and leaves morphotypes is carried out. Lines of peas which are more productive and most adapted for the south Rostov region conditions were allocated as a result
The article deals with the development of embryotransplantation and obtaining single and twin calves use of hormonal preparations FSH-Super and follotropin to provoke donors to super ovulation of folliculogenesis and embryos survival which were transplanted intocontralateral and ipsilateral uterine horn. Parameters of single and twin calves-transplantators’ growing in ontogenesis are also considered
High growth-rate of plantlet is the integral index of
intensity of physiological processes at rice and other
cultures. 20 typical plantlets from each of two
variants were studded (in the distilled water in
thermostat at a temperature 29° C) by:
length of embryonic root and coleoptile. Comparative
analysis of trait characterizing the growth rates of rice
varieties showed reliable advantage of Russian ones
above the Italian and Chinese. Local varieties,
regionalized until the year 2000, exceed new ones on
this trait. Highest growth rates were characterized by
medium grain samples. The white grain and red grain
varieties are excelled other groups on the height of
plantlet. Analysis rates of height of plantlets in the
distinguished groups showed the necessity of
prosecution of improvement of the above enumerated
signs at the varieties of late term of ripening, long
grain, with Waxy gene, colored grain. We recommend
to sow this type of varieties on fields with good
leveling, because of low speed of growth
Side products obtained during processing of many oil
crops, have a high feed value and use in rations of
animals and birds. The important thing in feeding
poultry is protein nutritional value of forages and
their biological integrity, expressed in amino acid
composition. In this regard, there was a comparative
analysis of the chemical and amino acid composition
traditionally used in compound feeds for poultry,
sunflower cake, and previously unexamined mustard
protein-containing feed concentrate called "Gorlinka".
During the research, it was found that the studied new
feed additive is better comparing to sunflower meal,
considering protein content and essential amino acids
Currently, we are constantly improving the recipes of
fish feeds, this reduces the cost of feed per gain, and it
overall decreases cost of fish. We search for
alternative cheaper sources of nutrients. Leftovers of
vegetable oil and oil extraction industry such as oil
cakes and meals have been used as high-protein feed
additives for a long time. This requires a strict
scientific control, precluding the possibility of their
harmful effects on animal health. In this regard, there
was a comparative analysis of the chemical and
amino acid composition traditionally used in
compound feeds for sturgeons of sunflower cake and
feed concentrate from "Sarepta" vegetable raw
materials. During the research it was found that
"Sarepta" is better than sunflower meal considering
protein and essential amino acids content
The article proposes a system of regression equations to
estimate the parameters of the normal probability distribution of the number of trunk diameters in stands of oak plantations of Lower Volga. Commodity tables for estimation of forest stands are developed
The value of the initial material for selection for heterosis
is primarily defined by the combining ability in
respect to the main economically valuable characteristics.
Combining ability with respect to “grain productivity”
has been studied among fourteen selfpollinated
lines of maize of early ripening and three
testers in the system of hybrid combinations. We have
proved that weather conditions have an influence on
the variability of the estimates of the combining ability.
We have identified the new self-pollinated lines of
maize SP 165 and SP 175, which are characterized by
invariably high evaluations in the effects of GCA (gi)
in different years. The new self-pollinated line SP 167
has got high variants of SCA (δ2si). The new lines SP
161, SP 163, SP 167 and SP 174 have been characterized
by the variability of the evaluations in the effects
of GCA. They are related to the first or second rank in
respect of GCA, depending on the year of the conducted
evaluation. These are SP 163, SP 164, SP 170,
SP 171 and SP 173 that have differed by their variability
of the variants of SCA (from the low variants to
the high ones). The highly productive testcross hybrids:
Madonna M × SP 165 (4.88 t / ha), Madonna M
× SP 171 (4.85 t / ha), Madonna M × SP 167 (4.80 t /
ha), T 7M × SP 165 (4.78 t / ha) have been obtained
based on the self-pollinated lines having invariably
high figures of GCA and SCA
Studied the investigation of the therapeutic effect of experimental mixture of four non-transducing E. coli bacteriophages and it combinations with probiotic, designed on the basis of the endemic Lactobacillus paracasei strain, previously isolated from pigs in this age of the local population in the state, the survival rate and laboratory parameters of pigs with post-weaning diarrhea. The most influence on the correction of E. coli dynamics has a combined oral administration of phage medicine and probiotic preparation established. The most influence on the dynamics of titer phages has not only the combined using (both oral and intradermal) of phage medicine with the probiotic preparation, but also an isolated ingestion of phage mixture
Dispersed colloidal particles pertaining to positive colloids is played important role in the process of the interaction of organic wastes (sewage sludge, defeca-tion mud, chicken manure, etc.) with various wastes of mineral raw materials (phosphogypsum, lime powder, halite, etc.)
Diseases cause great damage to agriculture, reducing
yields and decreasing its quality. The losses
are up to 20-30% of potential crop yields. Different
types of rust and powdery mildew cause significant
damage to wheat. Thereby, the growing of
varieties tolerant to these diseases is of great importance
at present. It allows solving such problems
as the improvement of stability of grain production
(especially in the epiphytotic time), improvement
of its quality and reduction of prime
cost of the product. Cultivation of resistant varieties
gives the opportunity to avoid a use of crop
protection chemicals and thus, to improve environment.
The researches were carried out in the
laboratory of intensive soft winter wheat breeding
and seed-growing of FSBSI ARRIGC after I.G.
Kalinenko in 2013-2015. The crop was sown in a
bare fallow. 275 samples of soft winter wheat from
the world collection VIR, Turkey (CIMMYT),
new varieties of domestic and foreign breeding,
varieties and constant selection lines of own selection
were the subjects of the study.
Favorable for disease development weather conditions
allowed evaluating collection samples according
to the degree of infection with leaf rust and powdery mildew under natural conditions.
According to a complex resistance to leaf rust and
powdery mildew we have distinguished the following
samples: ‘Nakhodka’, ‘1226/98’, ‘662/99’,
‘1366/08’, ‘Patriarkh’ (Russia); ‘Shestopalivka’(Ukraine);
‘Simonida’ (Serbia); ‘MV 15-04’
(Hungary); ‘Rialto’ (England); ‘Menestrel’
(France); ‘№42 CIMMYT’ (US). Thus, our conducted
study resulted in distinguishing the samples
of soft winter wheat which are resistant to leaf rust
and powdery mildew and are recommended to use
as a source of resistance and tolerance to these
pathogens. The samples with a combined resistance
to both pathogens are of particular interest