https://repository.utm.md/handle/5014/8301 2026-07-21T04:44:18Z 2026-07-21T04:44:18Z TOPCHIN-MATEI, Rodica CHIȘNICEAN, Lilia EREMIA, Nicolae MACAEV, Fliur ZNAGOVAN, Alexandru https://repository.utm.md/handle/5014/36873 2026-07-20T10:14:13Z 2025-01-01T00:00:00Z

Stevia rebaudiana (Bertoni) cultivată în condițiile Republicii Moldova: contribuții la studiul compoziției chimice TOPCHIN-MATEI, Rodica; CHIȘNICEAN, Lilia; EREMIA, Nicolae; MACAEV, Fliur; ZNAGOVAN, Alexandru Stevia rebaudiana B. este o plantă perenă cu efecte antidiabetice și antioxidante, datorate glicozidelor diterpenice. Originară din Paraguay specia Stevia rebaudia B. este studiată și în Republica Moldova, unde cercetările s-au axat pe adaptare, multiplicare și compoziție în condiții noi de mediu. Scopul studiului a fost determinarea conținutului de glicozide diterpenice în produsele vegetale de Stevia rebaudiana Bertoni pentru confirmarea calității condițiilor locale de cultivare. Părțile aeriene au fost recoltate din eșantioane ale colecției speciei Stevia rebaudiana B. cultivate în condiții de câmp deschis în zona de Centru a Republicii Moldova. Profilul de glicozide diterpenice din produsul vegetal a fost determinat prin metoda HPLC. Valorile obținute constituie media aritmetică a cinci determinări succesive; Stevia rebaudiana B. is a perennial plant known for its antidiabetic and antioxidant effects, primarily attributed to diterpene glycosides. Native to Paraguay, this species is also studied in the Republic of Moldova, where research focuses on adaptation, propagation, and phytochemical composition analysis. The aim of the study was to determine the content of diterpene glycosides in Stevia rebaudiana Bertoni plant products in order to confirm the quality of the local cultivation conditions. The aerial parts were harvested from samples of the Stevia rebaudiana B. collection cultivated under open field conditions in the central region of the Republic of Moldova. The diterpene glycoside profile of the plant material was determined using the HPLC method. The obtained values represent the arithmetic mean of five successive determinations

2025-01-01T00:00:00Z RUSU, Ștefan ERHAN, Dumitru ZAMORNEA, Maria CHIHAI, Oleg RUSU, Viorelia GOLBAN, Rita GOLOGAN, Ion CIBOTARU, Elena https://repository.utm.md/handle/5014/36872 2026-07-20T07:18:51Z 2026-01-01T00:00:00Z

Ectoparasite fauna of domestic waterfowl in the northern region of the Republic of Moldova RUSU, Ștefan; ERHAN, Dumitru; ZAMORNEA, Maria; CHIHAI, Oleg; RUSU, Viorelia; GOLBAN, Rita; GOLOGAN, Ion; CIBOTARU, Elena A study on the ectoparasite fauna of domestic waterfowl (ducks and geese) from the Anatidae family in the northern region of the Republic of Moldova showed that domestic ducks (Anas platyrhynchos domesticus, Linnaeus, 1758) were infested with six species of chewing lice: Trinoton querquedulae, Anatoecus icterodes, Anatoecus dentatus, Anaticola crassicornis, Anaticola anserinum, and Menopon obscurum, as well as the gamasid mite Dermanyssus gallinae. Domestic geese (Anser anser domesticus, Linnaeus, 1758) were found to host ten species of ectoparasites, including eight species of chewing lice: Trinoton querquedulae, Trinoton anserinum, Anatoecus icterodes, Anaticola crassicornis, Anaticola anserinum, Anatoecus adustus, Menopon obscurum, and Lipeurus caponis. In addition, geese were infested with the gamasid mite Dermanyssus gallinae and the argasid tick Argas persicus.These findings indicate a high diversity of ectoparasites infesting domestic ducks and geese in the northern region of the Republic of Moldova, with differences between host species. The presence of lice, mites, and ticks highlights the need for monitoring and controlling ectoparasite populations in order to maintain the health of domestic waterfowl in this region.

2026-01-01T00:00:00Z EREMIA, Nicolae JEREGHI, Vitalie CATARAGA, Ivan https://repository.utm.md/handle/5014/36871 2026-07-20T07:02:14Z 2026-01-01T00:00:00Z

The role of stimulative feeding of nurse bees in queen rearing technology EREMIA, Nicolae; JEREGHI, Vitalie; CATARAGA, Ivan The aim of this study was to evaluate the role of stimulative feeding of nurse bees in the technological process of queen rearing. Under conditions of absent maintenance nectar flow, nurse colonies were fed 50% sugar syrup supplemented with the biostimulator Cloramicob. Supplemental feeding improved the physiological condition of the bees and stimulated royal jelly secretion for grafted larvae, which increased larval acceptance for rearing. It also promoted queen cell development, particularly length and diameter, and increased the body mass of both unmated and mated queens. The best overall response was generally obtained at the dose of 2.0 ml/L, while all stimulated groups outperformed the unstimulated control.

2026-01-01T00:00:00Z RUSU, Ștefan ERHAN, Dumitru ZAMORNEA, Maria RUSU, Viorelia GOLBAN, Rita GOLOGAN, Ion CIBOTARU, Elena NAFORNIȚA, Nicolae https://repository.utm.md/handle/5014/36870 2026-07-20T06:37:58Z 2026-01-01T00:00:00Z

Innovative biological technology for the prevention and control of endoparasites in domestic waterfowl RUSU, Ștefan; ERHAN, Dumitru; ZAMORNEA, Maria; RUSU, Viorelia; GOLBAN, Rita; GOLOGAN, Ion; CIBOTARU, Elena; NAFORNIȚA, Nicolae This study investigates the diversity of endoparasites in domestic waterfowl (ducks and geese) of the family Anatidae, raised in anthropized environments in the Republic of Moldova, and evaluates the potential of a plant-based preparation for their control. Parasitological examinations revealed a diverse endoparasitic fauna, including class Trematoda (Echinostoma revolutum, E. robustum), class Secernentea (Amidostomum acutum, A. anseris, Ascaridia galli, Heterakis gallinarum, Ganguleterakis dispar), and class Conoidasida (Eimeria anseris, E. nocens, E. truncata). Given the prevalence of these parasites, a plant-derived product, Endopalmivet, based on extracts of Tanacetum vulgare, was tested. The product was administered in aqueous solutions of different concentrations, with the 20% solution showing the most promising results under the conditions of this study. Administration was carried out orally via drinking water, either as a single dose (prophylactic approach) or as two administrations at a 14-day interval (therapeutic approach). The results indicate a reduction in parasitic burden, varying depending on the parasite group and experimental conditions. Although the findings suggest promising potential, further rigorous studies are required to confirm efficacy, safety, and practical applicability.

2026-01-01T00:00:00Z