The Yaroslavl State Agricultural Academy (Yaroslavl SAA; Russian: Ярославская государственная сельскохозяйственная академия, ЯГСХА) is a public high educational institution in Yaroslavl, Russia. It trains specialists for agricultural industry, as well as dog handlers, veterinarians, and landscape designers.
The urolithiasis disease of cats, urolithiasis, which is currently increasingly common in mongrel cats, as well as in cats of the Maine Coon, British, Persian, Bengal, and Scottish breeds, has been studied. A number of factors contributing to the development of this disease have been identified. Recommendations for proper care of cats to avoid the development of this disease have been given.
1. Keel bone damage, such as deformations and fractures, is a severe problem regarding animal welfare in layers. To identify risk factors under commercial conditions, 33 layer flocks (22 barn, 11 free range) with white (n = 18), brown (n = 11) and mixed (n = 4) genotypes were examined. 2. Keel bone status was frequently scored by palpation throughout the laying period. Data on housing and management conditions were collected. Multiple regression and Generalized Estimating Equations procedure were used for analysis. 3. At 65-74 weeks of age, the prevalence of keel bone damage ranged between 26% and 74%. White genotypes and those kept in multi-tier systems developed significantly (p < 0.05) more keel bone damage than brown genotypes or those kept in single-tier systems. Wing feather condition was associated with keel bone damage (p < 0.05), while other investigated variables regarding health, housing and management were not associated. 4. In conclusion, housing and management should be adapted to meet the birds' specific needs in multi-tier systems, which may vary for brown and white genotypes. Whether those differences result from genotype associated predispositions or other individual traits remains to be determined.
Thermokarst troughs formed on ice-rich ground in Central Yakutia harbor contrasting soils that have developed from lake silt through a marsh stage to meadow and steppe-like soils. Associated processes result in radical transformations of an important component of the decomposer community in the biological cycle-the oribatid mites community. During the transition of soil from a Histic Reductaquic Cryosol to a Gleyic Cryosol and, finally, to a Turbic Chernic Cryosol, the number of species increased from three to six to thirteen. Total abundance of oribatid mites increased from 1,600 m-2 (+/- 265) to 2,442 m-2 (+/- 328) to 8,640 (+/- 588) m-2. A characteristic feature of these permafrost soils was the considerable similarity of the populations in the Gleyic Cryosol and the Turbic Chernic Cryosol and their negligible overlap with the oribatids population of the Histic Reductaquic Cryosol. The peculiarity of the Histic Reductaquic Cryosol is manifested both in quantitative parameters of the communities and in their qualitative characteristics, such as the dominance structure and the sets of species with different ecological preferences.
The purpose of the research is to study the influence of various crop cultivation technologies on the structure of micromycete complexes and the level of microbial soil toxicosis. Extensive, organic and intensive crop cultivation technologiesin a six-field crop rotation on soddy-podzolic gleyic soil for 2021–2022 have been studied. To study the structure of the micromycete complex the deep seeding method, the spatial occurrence index of species, the Syorensen-Chekanovsky similarity coefficient and the significance indexwere used. To determine the microbial toxicosis, the method of the initiated microbial community according to V.S. Guzev was used. According to the results of the experiments, fungi from the departments of Zygomycota and Ascomycota were discovered, in 2021 – 10 species, in 2022 – 16 species. In 2022, the largest number of micromycetes was recorded under cereals with extensive and intensive technologies, in 2021, a high number of fungi was recorded in variants with annual and perennial grasses using the same technologies. The greatest manifestation of microbial toxicosis was noted in 2021: the germinating ability of test crop seeds on control variants –76.67-92.67%, when initiating a microbial community – 44.67-76.67%. The cultivation of grain crops by extensive and intensive technologies contributed to the greater manifestation of soil microbial toxicosis.
