scholarly journals HYSIOLOGICAL AND BIOCHEMICAL CHANGES IN THE CHICKEN BODY UNDER EXPOSURE TO STRESS FACTORS AND USE OF NEW COMPOUNDS OF MACROLIDES

Author(s):  
E.A. Salashnaya ◽  
◽  
N.P. Zuev ◽  

Modern animal husbandry, including poultry farming, is characterized by the presence of numerous stress factors. The studies carried out have established that under their influence there is a decrease in the content of erythrocytes, as well as in them hemoglobin, a decrease in the content of total protein and calcium. Analyzing the data obtained, it can be concluded that under the influence of new macrolido compounds in the blood of chickens, the content of total protein increased in the structure of protein fractions of albumin and alpha globulins. With regard to other biochemical indicators - a decrease in the content of uric acid and creatinine. In the study of the catalytic activity of enzymes, a decrease in that of AcAt, AlAt and a tendency to an increase in alkaline phosphatase and amylase were found. When conducting a high-quality coagulation test by Veltman, a decrease in the disturbance of the structure of the protein fractions of blood serum was determined.

Author(s):  
A.V. Konstantinovich ◽  
◽  
A.S. Kuracheva ◽  
E.D. Binkevich

In conditions of climate change, when temperature and precipitation fluctuations occur more and more frequently during the growing season, it is necessary to obtain high quality seedlings with "immunity" to various stress factors, including high weediness, the damage from which is associated with a decrease in yield (by 25 -35%) and with a deterioration in the quality of agricultural products. Due to the imbalance in production technology, seedlings are often weakened, overgrown, with a low yield per unit area and survival rate in the field. One of the solutions to this problem is the use of PP for pre-sowing seed treatment to increase the competitiveness of seedlings in the field.


Author(s):  
R. S. Ovchinnikov ◽  
◽  
А. V. Kapustin ◽  
A. I. Laishevtsev ◽  
V. A. Savinov ◽  
...  

Mycotoxins and mycotoxicoses represent an actual problem for various fields of agriculture – cattle breeding, pig breeding, poultry farming, fish farming. Mycotoxins (MT) cause harm to the health of animals and enormous economic damage, products of animal husbandry contaminated with mycotoxins can pose a threat to human health. This problem is important from the point of view of providing food and fodder security of the country.


2020 ◽  
Vol 59 ◽  
pp. 92-96
Author(s):  
D. Rotari

Issues related to the reproduction of animals have been and remain one of the most complex and relevant problems of biology and are constantly finding a direct and effective way out into livestock farming practice. The rational use of breeding sheep as producers is limited by the lack of standard, objective methods and methods for the timely assessment of their reproductive ability. The article presents the results of evaluating the sperm production of rams-producers. For the first time, the freshly obtained sperm of rams of Moldavian type producers of the Karakul breed was evaluated using the macroscopic method - ejaculate volume, color and smell, as well as the microscopic method - motility, sperm concentration in the ejaculate, total sperm count in the ejaculate sperm movements (VAP; VSL and VCL) as well as the percentage of abnormal forms of sperm. The experiments were carried out on sheep producers grown on a pedigree farm of the experimental farm of the Moldavian Scientific and Practical Institute of Biotechnology in Animal Husbandry and Veterinary Medicine. As a result of the studies, it was found that the ejaculate volume on average was 0.99 ± 0.04 ml, motility was 0.95 ± 0.02 and sperm concentration 1.51 ± 0.14 billion/ml. The percentage of pathological forms in sperm averaged 13.72 ± 0.61, an indicator that characterizes the high quality of sperm. The average quality indicator of ejaculates obtained from ram-producers of the Moldavian type of the Karakul breed corresponds to physiological standards for the Karakul breed. The average percentage of pathological forms of sperm found in ejaculates indicates that the rams were in good conditions of feeding and keeping. According to research, we can say that the Moldovan type of Karakul rams can be successfully used to obtain high quality ejaculates suitable for freezing sperm at 196°C.


Author(s):  
N. Chornenka ◽  
Ya. Rayetska ◽  
O. Savchuk ◽  
L. Ostapchenko

During modeling of esophageal alkali burns 1 and 2 degrees in immature rats were observed violations of various metabolic systems, melanin administration helped to normalize the biochemical parameters. It was shown that under the esophageal burns there occurred violations of protein (total protein, albumin), nitrogen metabolism (creatinine, urea) metabolism of carbohydrate (glucose) and lipids (cholesterol), changed the activity of enzymes (GOT, GPT, CC), violated fluid and electrolyte balance (K +, Na +, Cl-, Ca2 +, Mg2 +, phosphates), while the introduction of melanin contributed to the normalization of these indicators. The most effective dose were of 0.5 mg/ kg and 1 mg/kg. There were found anti-toxic properties of melanin, which may be a promising drug for the normalization of metabolism in patients with burns of esophagus and prevent its complications.


2015 ◽  
Vol 26 (2) ◽  
pp. 213-216 ◽  
Author(s):  
W. Maciejewska-Potapczyk ◽  
L. Konopska ◽  
K. Bytniewska ◽  
A. Radziwonowska ◽  
H. Zawierucha ◽  
...  

Protein fractions: albumins, globulins, gluteins and prolamins were extracted from the leaves of 5 varieties of red clover. 'Skrzeszowicka' and 'Hruszowska' showed the highest content of total protein, 'Rotra' however – the highest globulin level. Globulins were fractionated on DEAE cellulose column into 3 fractions. Globulins from 'Rotra' and 'Hruszowska' varieties were separated into 4 fractions.


Biomics ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 449-454
Author(s):  
B.R. Kuluev ◽  
G.R. Gumerova ◽  
A.V. Knyazev ◽  
Kh.G. Musin ◽  
A.V. Chemeris

Kok-saghyz (Taraxacum kok-saghyz Rodin) is an alternative to Hevea brasiliensis source of high quality natural rubber that is able to grow in temperate climates. However, the field cultivation of kok-saghyz is associated with a number of problems, such as the need for seed stratification, seedlings that are very sensitive to stress factors, laboriousness in the fight against weeds and pests, uneven maturation of seeds, the lack of special equipment for sowing, collecting roots and seeds. In this regard, the use of hairy roots of kok-saghyz as a raw material for obtaining natural rubber seems to be promising. The aim of our work was to obtain cultures of hairy roots of kok-saghyz and to determine the content of natural rubber in them by the hexane method. In the course of the work, 10 lines of hairy roots of kok-saghyz were obtained, capable of growing in isolated cultures. It has been shown that these hairy roots accumulate an average of 7.5% hexane extract (rubber-like substances) per dry weight, which is about 1.5 times more than the roots of field kok-saghyz. Our data indicate that the use of the hairy roots of kok-saghyz is promising for the industrial production of natural rubber.


Author(s):  
S. Yu. Bulatov ◽  
V. N. Nechaev ◽  
A. G. Sergeev

Feed production, feeding of animals and poultry is an integral part of animal husbandry and poultry farming. Proper feeding of animals and poultry, which implies the making of an optimal diet with the input of useful premixes and vitamins, can increase their productivity. In Russia the predominant type of feeding is complete feed, which includes compound feed. Regardless of the type of feed in the process of its production, it is necessary to observe the proportions of its components. Dispensers are used for dosing, which depending on the purpose, are divided into mass and volume. We have made an attempt to generalize, systematize and implement the accumulated experience in the form of a scheme that allows us to understand the principle of operation of modern systems for dosing feed components, in which augers are used as feeding mechanisms. The purpose of the research was to build a scheme for selecting parameters and develop a methodology for studying the dosage system of feed components based on it. The results of the analysis of intellectual property protection documents and scientifi c works in the fi eld of dosing have been used to make a scheme for selecting parameters of the feed components dosing system. The results of observations on the operation of the developed system under production conditions and design features have been also taken into account. As a result of the research developed the scheme of selection of the operating parameters of the dosing system, revealed its shortcomings in the form of lower dosing accuracy with the decrease in the mass of the weighed components and the long search settings when composing the new diet. The methods have been developed to address the identifi ed defi ciencies in the determination of limit values of technological parameters.


1965 ◽  
Vol 43 (3) ◽  
pp. 425-431
Author(s):  
G. C. COLES

1. There are two adult-specific proteins in the haemolymph of Rhodnius. They appear to be formed in the fat body. 2. The two proteins are absorbed by the oocytes and form the bulk of the soluble egg proteins. 3. The changes in the concentration of total protein in the haemolymph and of four protein fractions, as separated on cellulose acetate, do not reflect egg production. This may be a consequence of the hormonal control of reproduction.


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