Articole din publicaţii naţionalehttp://repository.utm.md/handle/5014/83032024-03-29T13:25:04Z2024-03-29T13:25:04ZIncidența bacteriilor din genul Salmonella spp la unele unități de creștere a puiilor broiler și a găinilor ouătoareJUNCU, Olgahttp://repository.utm.md/handle/5014/267262024-03-29T13:20:10Z2023-01-01T00:00:00ZIncidența bacteriilor din genul Salmonella spp la unele unități de creștere a puiilor broiler și a găinilor ouătoare
JUNCU, Olga
As a goal of this investigations was to establish the incidence of the circulation of pathogenic serotipes of the Salmonella spp. bacteria in the poultry enterprises specialized in the growth of broiler chickens and in the poultry factoris specialized in production of eggs for current consumption. As material for the research were taken sampels from the poultry rooms, and eguipment, the faecal sampels, shoe, surface washes from the equipment and the eggs for current consumption. The isolation and identification of bacteria from the genus Salmonella spp. were performed to the methodology in force at nationl level. For serotyping of bacteria from the genus Salmonella spp., were used the monovalent O and H sera. The results of bacteriological investigations of faecal sampels colected from broiler chickens, demonstrated that the highest index of bacteria of the genus Salmonella spp. at the age of 1-2 days was 2.09±0.18 log CFU/g , with variations to 2.49±0.19 log CFU/g at the age of 20 days and with an increase up to 3.52±0.20 log UFC/g, at the 40 days age of chickens. Simultaneously with the faecal samples, were taken the sampels from chicken corpses. The obtained indices demonstrated that the number of conditionally pathogenic microorganisms in the chickens corpses is higher with 2 log units, compared to this index obtained from faecal samples of live chickens. Bacteriological research performed at faecal samples of the flocks of laying hens have demonstrated that the index of bacteria of the genus Salmonella spp. at the age of hens of 145-165 days had relatively low variations (0.65±0.16 log CFU/g). At the beginning of the laying period (290-310 days) this index had a parametres of 0,71±0,08 log CFU/g, but of the end of the laying period (450-470 days), the index had a double increasing and constituted 1.66±0.24* log CFU/g. The mentioned indexes demonstrated that the veterinary sanitary and preventive curative measures undertaken at the poultry units do not fully prevent the risks of contamination with bacteria of the genus Salmonella spp. and still remain an important problem for the health of poultry flocks. Bacteriological investigations confirmed that the index of Salmonella spp. bacteria in broiler flocks constituted 8.6%, with the predominance of serotype Salmonella pullorum gallinarum, and in laying hen flocks this index constituted 4.2%, with the predominance of Salmonella pullorum gallinarum and Salmonella typhimurium serotypes, which presents a risk of contamination both for poultry flocks and for human health.
2023-01-01T00:00:00ZStudiul aspectelor bacteriene a unor sortimente de peșteGOLBAN, Ritahttp://repository.utm.md/handle/5014/267252024-03-29T13:12:35Z2023-01-01T00:00:00ZStudiul aspectelor bacteriene a unor sortimente de pește
GOLBAN, Rita
The scientific research reflected in this study aimed to identify the bacterial microflora in different varieties of fish of different commercial categories through microbiological investigation. The microbiological assessment conditions of the examined fish varieties determined the presence of saprophytic germs, affirming a normal microflora according to the requirements of microbiological investigation standards and the identification of existing microbial species. The microbiological aspects of the assessment of the examined fish varieties confirmed the presence of saprophytic germs, confirming a normal microflora favorable to the requirements of the microbiological investigation standards and the identification of existing microbial species.
2023-01-01T00:00:00ZAspecte privind implicarea speciilor microbiene în fermentațiile din produsele lactateGOLBAN, Ritahttp://repository.utm.md/handle/5014/267242024-03-29T12:38:24Z2023-01-01T00:00:00ZAspecte privind implicarea speciilor microbiene în fermentațiile din produsele lactate
GOLBAN, Rita
In the present research were investigated some microbiological aspects of the microflora of some assortments of dairy products regarding the involvement of microbial species in fermentation processes in various periods of refrigeration according to the scheme of laboratory microbiological conduct.The registered results through the evaluations of the number of colonies in dairy products determined by the species Streptococcus lactis, in various refrigeration periods regarding the quantitative study as well as its importance in the lactic fermentation, allowed us to obtain relevant knowledge specific to the microbiology of food products.Isolation of the species from dairy products of different varieties determined a favorable saprophytic microflora in the bacteriological study of microbial cultures on culture media in different periods of refrigeration and microscopic indices of streptococcal cells specific to the species.
2023-01-01T00:00:00ZInvazia cu Stenostomum leucops aquariorum în acvariu cu pești decorativi și metodă de combatereDUMITRIU, AntoninaMELNIC, Sabrina-Emiliahttp://repository.utm.md/handle/5014/267232024-03-29T12:28:14Z2023-01-01T00:00:00ZInvazia cu Stenostomum leucops aquariorum în acvariu cu pești decorativi și metodă de combatere
DUMITRIU, Antonina; MELNIC, Sabrina-Emilia
This study includes data about Stenostomum leucops aquariorum obtained during one month after researching a 45l common aquarium with Pterophyllum scalare black spawn, in which were decorative fishes of different species. Microorganism research was carried out by the optical microscopy method at the Faculty of Veterinary Medicine of the Technical University of Moldova. For the microscopic study, pieces of plants were collected from the aquarium and the individuals themselves were collected in glass containers, detecting several species of microorganisms. Also, in this work, it will be mentioned about morphological aspects, some particularities, their resistance to different environmental conditions, drug control through the use of a single preparation, its action and effectiveness in the fight against invasion by Stenostomum leucops aquariorum and obviously the results which was obtained.
2023-01-01T00:00:00Z