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Upgrading the fixed-time artificial insemination (FTAI) protocol in Romanian buffaloes
No full textThe present study describes the challenges of assisted reproduction in Romanian buffaloes while increasing the efficacy of artificial insemination by choosing the most suitable method. The modified fixed-time artificial insemination (FTAI) protocol with sexed semen was used to increase the conception rate. This study included a total of 80 buffalo heifers that received ovarian stimulation using the OvSynch protocol. Two groups (n = 40), namely, a control group, in which the classic FTAI method was performed, and an experimental group, in which deep intrauterine AI was performed in cows that had developed a dominant follicle (US+UcFTAI), were randomly selected. The conception rate (CR) was 63.6% in the experimental group, which was statistically higher (P < 0.05) than the control group (30%). The ultrasound examination indicated that, using the OvSynch protocol, 82.5% (33 out of 40) of buffaloes developed a dominant follicle (DF) while the distribution between the warm and cold seasons was 75 and 90%, respectively. The CR was 60% during the hot season and 66.6% during the cold season. At calving, 92.5% female fetuses were born. The improved FTAI method in this study enhanced the results by reducing the waste of sexed semen and maximizing the response to OvSynch, making it a recommendation for practitioners. This study presents preliminary results and highlights that genetic progress is difficult to achieve. A systematic approach is needed in order to choose the most suitable biotechnological method for each farm
Some agrobiological peculiarities and the economical value of chia Salvia hispanica L. in Moldova
No full textThe aim of this study was to evaluate some agrobiological peculiarities, the quality of the harvested fresh mass and prepared
haylage of the genotypes of chia – Salvia hispanica, cultivated under the conditions of the Republic of Moldova. The studied
genotypes of chia were characterized by optimal growth and development rates. It was determined that the nutrients of the dry
matter of Salvia hispanica whole plants cut in the flowering period were: 87-107 g/kg CP, 77-83 g/kg ash, 347-377g/kg CF, 348-
362 g/kg ADF, 517-533 g/kg NDF, 62-65g/kg ADL, 283-331 g/kg Cel, 166-174g/kg HC, 107-123 g/kg TSS, with nutritive value:
60.70-61.79% DMD, RFV= 106-111, 12.00-12.19 MJ/kg DE, 9.85-10.1 MJ/kg ME, 5.87-6.03 MJ/kg NEl. The fermentation
quality and the nutritive value of the haylage prepared from chia plants were characterized by the following indices: pH= 4.81,
18.5 g/kg lactic acid, 2.3 g/kg acetic acid, 0.3 g/kg butyric acid, 100 g/kg CP, 80g/kg ash, 400 g/kg CF, 419 g/kg ADF, 593 g/kg
NDF, 72 g/kg ADL, 347 g/kg Cel, 199 g/kg HC, with nutritive value: 56.3% DMD, RFV= 88, 11.21 MJ/kg DE, 9.20 MJ/kg ME,
5.22MJ/kg NEl. The studied fresh and ensiled substrates from Salvia hispanica have C/N=29.2-36.8 and the biochemical
methane potential reaches 285-298 l/kg ODM. Chia – Salvia hispanica – can serve as multi-purpose crops for forage production
and feedstock for renewable energy production
Effect of moisture contents and compression axes on some physical and mechanical properties of Dioclea reflexa seed
No full textInterest in unconventional seeds such as Dioclea reflexa is growing in the tropical regions, with the potential for utilisation as food or industrial materials. Researchers confirmed that Dioclea reflexa seed has the potential for clinical use, use as a food source, and as industrial raw material. This research studies the effect of moisture content on the physical properties of Dioclea reflexa seed and the effect of moisture content and compression axes its mechanical properties. Standards methods were used to determine the physical properties, while the mechanical properties were derived from force-deformation curves for the moisture content range 4.8 to 12.1% (wet basis). The mean values of the seed’s length increased by 3.55% (from 31.01 mm), the width increased by 4.13% (from 26.64 mm), and the thickness decreased by 2.48% (from 21.75 mm). The geometric mean diameter increased by 1.68%, surface area increased by 3.68%, sphericity decreased by 1.54% and individual seed mass increased by 10.46%. The physical properties exhibit linear relationships with moisture content. Rupture force increased by 75% (from 0.80 kN) for loading along the major axis; by 84% (from 0.72 kN) for the intermediate axis; and by 41% (from 0.78 kN) for the minor axis. Rupture energy increased from 0.18 J to 1.25 J for compression along the major axis, from 0.087 J to 0.43 J for the intermediate axis, and from 0.080 J to 0.18 J for the minor axis. The mechanical properties were found to be moisture content and loading orientation-dependent. Reducing moisture content reduced both the force and the energy required to rupture the seeds. The data generated will be useful in the design of processing machinery and storage facilities for the seeds
Research on the pathogen complex causing sugar beet root rot in the north-east of Moldova
Get PDFThe root rot diseases of sugar beet (Beta vulgaris L.) caused by a complex of pathogens includes Rhizoctonia solani,
Macrophomina phaseolina, Phoma betae, Aphanomyces cochlioides, Pythium aphanidermatium, Phytophthora
drechsleri, Rhizopus stolonifer, Sclerotium rolfsii, Fusarium oxysporum, F. solani, F. avenaceum, etc. The disease
leads to significant economic losses associated with a decrease in root yield (up to 50-60%), a drop in the percentage of
sugar and a deterioration of sugar juice purity (low white sugar recovery). Many of these pathogens also cause postharvest losses in storage piles (up to 100%). Until now, there is no disease resistant cultivars and the pathogens causes
beet root rot in hybrids of all breeding companies on the market. Heat and drought contribute to the spread of the
disease. The fight against the disease is very complicated by the fact that the fungus, under certain conditions, switches
to saprotrophic nutrition, thereby maintaining its population
Bibliometric analysis of the incidence of non-Covid respiratory disease under NPI conditions during the pandemic
No full textPublications associated with
the incidence of respiratory diseases in light
of the COVID-19 pandemic have skyrocketed.
Using bibliometric analysis, this study
assessed the characteristics of published
articles regarding non-pharmaceutical
interventions (NPIs) on other respiratory
infections during the COVID-19 pandemic.
On July 06, 2023, a systematic review of
literature on the incidence of respiratory
diseases was conducted using the Scopus
database. VOS viewer software was used to
visualize the network. This study yielded a
total of 910 articles, which were eventually
narrowed down to 148 articles. The findings
of the bibliometric analysis revealed a trend
in research that included not only the
investigation of the incidence of other
respiratory diseases but also that of
gastrointestinal infections during the
COVID-19 pandemic. Most of the research
output was created by American and Chinese
authors. Kim J. H. was the most productive
and cited researcher, with three research
articles. There is a scarcity of data on the
effectiveness of NPI in preventing the spread
of other respiratory diseases among various
age groups, including children, adults, and
vulnerable populations. Countries should
consider increasing their support for
COVID-19 research, to generate knowledge
pertaining to NPIs and, by extension, other
infectious diseases with similar transmission
mechanisms
Quality indicators for combines with different threshing systems
Get PDFThe operation of cereal and oilseed crop combines is based on several key factors: increased reliability, prolonged
mechanical endurance, accessible maintenance for every farmer, timely and cost-effective harvesting to reduce
expenses, and meeting quality, energy, and operational standards. The manner in which combines are used, operated,
and maintained is of utmost importance in achieving higher productivity and maximum economic efficiency.
Knowledge of the operational potential of these machines can significantly influence productivity and result in peak
production performance. The cereal harvesting process involves several complex stages, including cutting the plants,
threshing (separating the seeds from the rest of the plant), collecting, and transporting the resulting products (grains,
chaff, plant residue). Self-propelled combines offer several advantages, including higher maneuverability, greater
working width, increased working speed, and the ability to be adapted for harvesting different crops
Effects of lumbar intervertebral disc herniation on adjacent musculature on computed tomography (CT) examination
Get PDFIn the late 1800s Dexler used for the first time the term IVDD (Intervertebral disc disease), which was described as the
presence of cartilaginous material in vertebral canal. Intervertebral disc herniation (IVD) refers to the part of the disc that
is within vertebral canal.
The aim of the paper was to highlight the morphometric changes of the dorso-lumbar musculature occurring in dogs
diagnosed with the presence of hyperattenuating material in vertebral canal by CT.
Thirteen dogs from varying breeds of dogs (French bulldog, Dachshund, Bichon, Pekingese) age from 2 to 8 years old,
with hind limbs locomotory disease were scan with a Somatom Scope 16-slices CT scan. Results: Pronounced muscle
contracture was seen on CT scan thus: 1,4 mm (+-0,6mm) in Bichon on left multifidus muscle in the area of the protrusion,
1.6 mm (+- 0,6mm) in Dachshund on left multifidus muscle in the area of the protrusion, 2,1 mm (+- 3 mm) in Pekingese on left
multifidus muscle in the area of the protrusion and 1,2 mm (+- 0,5 mm) in French bulldogs on the right multifidus muscle in
the area of the protrusion.
An increased muscle contracture was seen in all patients in the area of the herniation
Influence of crop species on soil microbial abundance and diversity
No full textAgricultural crop species can influence the soil microbial population through the influence of root exudates, which compounds released by plant roots into the soil. Some crop species exude compounds that are more beneficial for certain groups of microbes, while others exude compounds that inhibit the growth of certain groups. Additionally, different crop species have different root systems, which can affect the physical structure of the soil and the availability of water and nutrients, which in turn can influence the soil microbial population. Moreover, crop species can also influence the soil microbial population by changing the soil pH and the level of organic matter. Crop species that produce large amounts of biomass can increase the amount of organic matter in the soil, which can support a greater diversity of microorganisms. Maize and soybean are some of the most important agricultural crop globally. Both corn and soybean are important crop species for the global food system and also for the economy of many countries, including Romania. A study was conducted to determine the composition of the soil microbial community in the rhizosphere of maize (Zea mays L.) and soybean (Glycine max (L.) Merrill.) at different phenological stages and to determine whether the two crops influence the microbiological abundance and diversity in the soil
