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Monitoring of the epidemiological situation of avian salmonellosis in poultry marketing units
No full textThe aim of the proposed investigation was to establish the bacterial microflora present on poultry carcasses and eggs sold in the food network of the central agricultural market from Chisinau; especially, bacteria of the genus Salmonella spp. During the investigation was studied the type and number of bacterial colonies and was serotyped the bacteria of
the genus Salmonella spp. At the same time was performed the sensitivity of the isolated microflora to some more frequently antibiotics used in poultry farms. The research samples were taken from refrigerated carcasses of broilers chikens and eggs from poultry farms from the republic. The investigation’s result confirmed the presence of an associated microflora with Srteptoccocus, Staphylococcus, E. Coli and bacteria of the genus Salmonella spp. in poultry carcasses and eggs of current consumption. From the total number of samples taken, in 12% of them was detected the bacteria of the genus Salmonella spp. The serotyping confirmed the presence of the following Salmonella spp. serotypes: S. Infantis, S. Enteritidis and S. Typhimurium. The antibiotic resistance tests confirmed a low sensitivity of the isolated microflora to some of the most common antibiotics used in birds’ raising. The area of inhibition ranged from 8mm to 0 mm in most
tested antibiotics; the most sensitive antibiotic proved to be florfinicol with a maximum inhibition area of 18 mm. The obtained results demonstrate the presence of some pathogenic serotypes of Salmonella spp. which can have a major risk for public health
Comparative analysis of hematological parameters and blood compatibility in different bird species
No full textBirds seem to survive and recover much faster than mammals after acute blood loss. Their ability to tolerate severe bleeding may be due to the lack of automatic responses to irreversible shocks, faster transfer of extracellular fluids into the vascular space and faster mobilization (at 12 hours) of a large number of immature erythrocytes after significant
blood loss; for example, pigeons return to normal hematocrit only 7 days after 60% of the blood has been drawn, without any clear clinical signs. In this study our objectives were the comparative analysis of hematological parameters in samples from domestic birds of different species and the investigation of the possible compatibility between the blood of
chickens and palmipeds. The investigations were carried out between October 2018 - May 2019 in the Physiology Laboratory of the Faculty of Veterinary Medicine, CLUJ-NAPOCA, on blood samples collected from a batch of 23 birds, composed of: 9 chickens, 5 turkeys, 4 ducks, 2 geese, 1 quail, 1 pheasant, 1 pigeon.. Blood samples were taken from the
basilic vein of each bird and collected on an EDTA tube. Comparative hematological analyzes included the determination of the erythrogram parameters (total number of erythrocytes, hematocrit, hemoglobin concentration and mean erythrocyte constants) and leukogram parameters (total number of leukocytes and proportions of leukocyte subpopulations). In order to evaluate and analyze the intra- and interspecific blood compatibility, 110 Crossmatch reactions were performed, 55 for the major test and 55 for the minor test.. The hematological results, interpreted comparatively on batches and species, showed significant variations at both individual and species level. We also noticed a major inconsistency between the values of the mean erythrocyte constants and the main hematological parameters. The results regarding the evolution of intra- and interspecific blood compatibility revealed the absence of preformed isoantibodies against the various antigens of the blood group systems of the tested species. In conclusion, 14.54% positivity proportion outlined the level of the incompatibility rate for heterologous combinations
Efectul insecticid al extractelor din plante medicinale şi aromatice: mit sau realitate?
Get PDFThe concern of the people for obtaining rich harvests and with the least expensive means has been and is continuous. The man of the past centuries, being more connected to nature than the present man and having the popular knowledge about the natural phenomena and about the plant species from the spontaneous flora, often used different plants in the control of the pests from the agricultural crops. Modern man, forced to return to nature, has devoted himself to the study of plants with combat potential, the first fruits of his work being then materialized in a series of synthetic products called pyrethroids, after the plant that provided them with information and substance: Piretrum cinerareifolium
Analize gravitaţionale aplicate la lignina protobind 1000
No full textLignin derivative (the commercial product -Protobind 1000) offered by the Granit Recherche Developement S.A. company, Lausanne-Schwitzerlandwas synthesized from annual plants. The ligninstands out by a very large range of applications in extremely various domains: agriculture,the pulp and paper industry, constructions or metallurgy.The adsorption-desorption capacity, ion exchange capacity and its catalytic properties are just a few specific characteristics which are emphasizing the importance of harnessing the lignins. Using the gravitational sedimentation, it can be determined in a shorter period of time the particle dimensions comparing with the sieving method, which is a much more complex one
Diagnostic methods and therapeutic options in dog skin allergies – a short review
No full textAllergy is an exaggerated reaction of the body, which occurs after the contact with various substances that
the immune system considers foreign and acts against them. Like humans, dogs can be allergic to various
substances which, when inhaled or absorbed through the skin, airways or gastrointestinal tract, stimulate
the immune system by releasing histamine that induces inflammation, erythema, edema and itching. It is
considered that all the cases of allergies, whether low, moderate or severe, are genetic in nature. Dogs that
become allergic to drugs, vaccines, food, dust, pollen, fleas, various household substances, etc., are
"genetically programmed" to have an immune system capable of producing an allergic reaction. The allergic
reaction is not due to medication, biological products, food or the environment, but it is considered to be a
genetic trait inherited from parents. Because there are different types of allergies and many conditions that
can cause skin problems in dogs, the symptoms they present differ from one allergy to another, from one
patient to another, requiring both diagnosis and treatment to be made differential for each type of allergy
and for each individual. The symptoms of allergic reactions can be diagnosed through allergic tests
(intradermal or blood tests), the individual removal of allergens from the dog's living environment (in case
of parasitic allergy), or by reagent therapy. Fighting allergies involves the use of antihistamines, antiinflammatory
corticosteroids, topical antipruritic substances, leukotrienes inhibitors, as well as various
plant extracts with antiallergic effect
Research regarding reproductive performance recorded for landrace X Yorkshire crossbreed sows used for bacon production
No full textThe aim of this study is to present the reproduction performance recorded at Landrace x Yorkshire cross bred sows exploited for bacon production in an elite unit in Denmark. We have investigated several reproductive parameters: fecundity (depending on season), index of using sows for reproduction, prolificacy, number of piglets farrowed dead and the survival percentage to weaning. The obtained results were: average fecundity is between 91.66 and 92.22%; the average index of use for reproduction is between 2.35 and 2.37; the average number of piglets farrowed alive is between 14.35 and 14.37. The results are a consequence of valuable genetic material, as well as of the technology applied in the unit. The results are situated within the data presented in the specialty literature for these parameters
Duration and concentration of 1-methylcyclopropene treatment: impact on ripening and shelf life of partially ripened bananas
No full textIn order to improve the
quality and extend the shelf life of
bananas after gassing with ethylene at
commercial treatment during transportation
and storage the simultaneous application
of ethylene and 1-methylcyclopropene
were examined. Fruit were treated with
100 μL L-1 of ethylene for two
consecutive days as a control, followed by
20 min ventilation each day, or
simultaneously exposed to 1-MCP at
different concentrations (30, 100 or
300 nL L-1 on the first day or second day,
or treated with 1-MCP alone on the third
day at 22ºC. Fruit from each treatment
were used to evaluate external and
internal quality parameters and shelf life.
The results showed that shelf life
increased significantly, compared to the
control when 1-MCP was applied
coincidently with ethylene in the second
day and reapplied alone in the third day.
The highest increase in shelf life (125%)
was obtained when 1-MCP was applied
on the second day at 30 nL L-1
simultaneously with ethylene and at
300 nL L-1 alone on the third day,
compared to the control in both harvest
months. We conclude that simultaneous
application of 1-MCP is more effective
than the more common method of
extending banana shelf life through
application of 1-MCP after ethylene
treatment
Utilizarea plantelor de tomate ca biosenzori in sistemele de fertirigare din seră
Get PDFNumerous studies conducted in the fundamental fields of nutrition
and irrigation are based on the phyto-chemical relationship between plants
and the environment, a relationship that is reflected in technologies and,
subsequently, in the quality and quantity of production. Research highlights
the relationship between the value gradient of an electric current measured in
the stem of tomato plants and the degree of water supply and nutrient
solutions Eleven experimental variants had the role of highlighting the
potential for variation of the electric current in the Brillante F1 tomato
cultivar. The best results of the electric current, also reflected in the tomato
production, were obtained at the level of V 8 variants (mix of potassium
sulphate calcium nitrate potassium chloride) and V 9 (mix of applied
solutions) at the time of application of the solutions nutrients and irrigation,
to prevent the occurrence of abiotic stress
Influence of the wetting process in the conventional system on the qualitative indices of wheat for milling
No full textThe wheat conditioning determines a series of transformations of the mechano-structural and biochemical properties of the grains. Proper wetting of the wheat grain on the outside succeeds in the peeling process in removing the upper layers of its coating without water entering the endosperm, so that in the end high quality flours will be obtained. In this study, two influencing factors were followed: the temperature in the grain mass and the rest time of grains after wetting, finally obtaining a multifactorial experience with 72 experimental variants. The experiments, performed in the present paper, revealed a close connection between the rest time of grains and their humidity after the hydrothermal treatment. Also, the three temperature ranges (10°C - 15°C, 15°C - 20°C and 20°C - 25°C) of the cereal mass for which the study was performed, had a direct influence on the water speed penetration from the outside of the grains to the inside. By establishing individually, the optimal conditioning recipe for each batch of wheat with different characteristics, the wetting period is significantly reduced in the technological process of preparing wheat grains for milling