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Journal articles on the topic 'Sheep stable'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Friend, M. A., and G. E. Robards. "Wool production and quality of three strains of Merino in a semi-arid environment under different grazing strategies." Australian Journal of Experimental Agriculture 46, no. 1 (2006): 37. http://dx.doi.org/10.1071/ea04018.

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Three strains of Merino wethers (strong, medium and fine wool; n = 30 each; 3 years old) were grazed under 3 different management regimes (10 from each strain) in a semi-arid environment to test the hypothesis that attempting to keep liveweight stable at upper and lower levels would improve staple strength relative to sheep in which no attempt was made to limit liveweight fluctuations, and that strength and wool colour would not differ between strains. Sheep in the low grazing regime were managed in an attempt to keep liveweight stable at a level below that of sheep in the high grazing regime,

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2

JURAEVA, U. SH. "Assessment of different systems of keeping Hissar sheep that have developed in Tajikistan regently." Sheep, goats, wool business, no. 3 (2023): 47–50. http://dx.doi.org/10.26897/2074-0840-2023-2-47-50.

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The article provides an assessment of the different systems of keeping Hissar sheep that have developed in the farms of Tajikistan in recent years. The first system is the year-round pasture keeping of Hissar sheep in winter and early spring periods on valley and foothill pastures, and in summer and early autumn - in the mountains on alpine and subalpine pastures. The second system is the pasture keeping of Hissar sheep only in summer and early autumn in the mountains, and in other periods - stable and semi-stable keeping. Pasture maintenance is practically absent. The third system is the year

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3

Vilarino, Marcela, Delia Alba Soto, Yanina Soledad Bogliotti, et al. "Derivation of sheep embryonic stem cells under optimized conditions." Reproduction 160, no. 5 (2020): 761–72. http://dx.doi.org/10.1530/rep-19-0606.

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Until recently, it has been difficult to derive and maintain stable embryonic stem cells lines from livestock species. Sheep ESCs with characteristics similar to those described for rodents and primates have not been produced. We report the derivation of sheep ESCs under a chemically defined culture system containing fibroblast growth factor 2 (FGF2) and a tankyrase/Wnt inhibitor (IWR1). We also show that several culture conditions used for stabilizing naïve and intermediate pluripotency states in humans and mice were unsuitable to maintain ovine pluripotency in vitro. Sheep ESCs display a smo

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4

KORNIENKO, P. P. "Skin-wool cover of sheep during pasture and year-round stable keeping of animals." Sheep, goats, wool business, no. 4 (2023): 38–41. http://dx.doi.org/10.26897/2074-0840-2023-4-38-41.

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The positive influence of year-round stabling (in comparison with stabling-pasture) on the formation of skin and wool cover: the total thickness of skin and its separate layers, the density of hair follicles, physical and technical properties and wool shearing has been established in sheep of the Prekos breed. The studied technology in growing of repair young sheep is acceptable in conditions of sheep breeding farms of the Central Black Earth zone.

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5

Buxton, B. A., N. C. Hinkle, and R. D. Schultz. "Role of insects in the transmission of bovine leukosis virus: Potential for transmission by stable flies, horn flies, and tabanids." American Journal of Veterinary Research 46, no. 1 (1985): 123–26. https://doi.org/10.2460/ajvr.1985.46.01.123.

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SUMMARY The ability of stable flies (Stomoxys calcitrans, horn flies (Haematobia irritans), and tabanids (Diptera: Tabanidae) to transmit bovine leukosis virus (blv) was investigated. Stable flies and horn flies were fed on blood collected from an infected cow, and the flies’ mouthparts were immediately removed, placed in RPMI-1640 medium, ground, and inoculated into sheep and calves. Infection of sheep occurred with mouthparts from as few as 25 stable flies or 25 horn flies. However, sheep were not infected when removal of stable fly mouthparts was delayed ≥ 1 hour after blood feeding. Infect

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Tran, Nam D., Christopher D. Porada, Graça Almeida-Porada, Hudson A. Glimp, W. French Anderson та Esmail D. Zanjani. "Induction of stable prenatal tolerance to β-galactosidase by in utero gene transfer into preimmune sheep fetuses". Blood 97, № 11 (2001): 3417–23. http://dx.doi.org/10.1182/blood.v97.11.3417.

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The successful transduction of hematopoietic stem cells and long-term (28 months) transgene expression within the hematopoietic system following the direct injection of high-titer retroviral vectors into preimmune fetal sheep was previously demonstrated. The present studies extended these analyses for 40 months postinjection and evaluated whether the longevity of transgene expression in this model system was the result of induction of prenatal tolerance to the transgene product. The intraperitoneal injection of retroviral vectors into preimmune sheep fetuses transduces thymic epithelial cells

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7

Wilson, Richard D., and Kenneth R. Beerwinkle. "Somatosensory-evoked potential induced by stimulation of the caudal tibial nerve in awake and barbiturate-anesthetized sheep." American Journal of Veterinary Research 47, no. 1 (1986): 46–49. https://doi.org/10.2460/ajvr.1986.47.01.46.

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SUMMARY The somatosensory-evoked potential (sep) from caudal tibial nerve stimulation was recorded in sheep, using surgically implanted electrodes. Peak latencies of the sep remained stable throughout the 3- to 5-month recording period. Wave-form and peak latencies from awake sheep and concomitant changes during barbiturate anesthesia were compared with those reported for other animal species, including man. Wave form components representing activities from the primary somesthetic cortex, association cortex, and nonspecific diffuse projections were differentially susceptible to barbiturate ane

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8

He, Yiwei, Qianqian Cui, and Zengyun Hu. "Modeling and analysis of the transmission dynamics of cystic echinococcosis: Effects of increasing the number of sheep." Mathematical Biosciences and Engineering 20, no. 8 (2023): 14596–615. http://dx.doi.org/10.3934/mbe.2023653.

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<abstract><p>A transmission dynamics model with the logistic growth of cystic echinococcus in sheep was formulated and analyzed. The basic reproduction number was derived and the results showed that the global dynamical behaviors were determined by its value. The disease-free equilibrium is globally asymptotically stable when the value of the basic reproduction number is less than one; otherwise, there exists a unique endemic equilibrium and it is globally asymptotically stable. Sensitivity analysis and uncertainty analysis of the basic reproduction number were also performed to sc

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9

Grandal-d’Anglade, Aurora, Ana García-Vázquez, Marta Moreno-García, Leonor Peña-Chocarro, Jorge Sanjurjo-Sánchez, and Juan Luís Montero-Fenollós. "Stable Isotopes and Herding Strategies in Middle Uruk Period in Tell Humeida (Syrian Euphrates Valley)." Diversity 15, no. 6 (2023): 709. http://dx.doi.org/10.3390/d15060709.

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The techniques of agriculture and animal husbandry at Tell Humeida, a Middle Uruk Period (Late Chalcolithic) site on the middle Syrian Euphrates, were studied using stable isotopes of bone collagen of domestic and wild mammals and from cereal and ruderal plant seeds. Two archaeological campaigns in 2009 and 2011 yielded a small collection of bones, most of which were taxonomically indeterminable. The work had to be interrupted due to the political conflict. The faunal study comprised collagen peptide fingerprinting for taxonomic identification, followed by isotopic analysis. Multiple 14C datin

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De LANGE, M. M. A., B. SCHIMMER, P. VELLEMA, J. L. A. HAUTVAST, P. M. SCHNEEBERGER, and Y. T. H. P. VAN DUIJNHOVEN. "Coxiella burnetii seroprevalence and risk factors in sheep farmers and farm residents in The Netherlands." Epidemiology and Infection 142, no. 6 (2013): 1231–44. http://dx.doi.org/10.1017/s0950268813001726.

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SUMMARYIn this study, Coxiella burnetii seroprevalence was assessed for dairy and non-dairy sheep farm residents in The Netherlands for 2009–2010. Risk factors for seropositivity were identified for non-dairy sheep farm residents. Participants completed farm-based and individual questionnaires. In addition, participants were tested for IgG and IgM C. burnetii antibodies using immunofluorescent assay. Risk factors were identified by univariate, multivariate logistic regression, and multivariate multilevel analyses. In dairy and non-dairy sheep farm residents, seroprevalence was 66·7% and 51·3%,

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11

Kitching, R. P., P. P. Bhat, and D. N. Black. "The characterization of African strains of capripoxvirus." Epidemiology and Infection 102, no. 2 (1989): 335–43. http://dx.doi.org/10.1017/s0950268800030016.

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SUMMARYIsolates of capripoxvirus collected from sub-Saharan Africa were compared in sheep, goats and cattle and by restriction endonuclease digestion of their purified DNA. Biochemical techniques were used to precisely identify strains of capripoxvirus for epidemiological investigations. Strains of capripoxvirus infecting cattle have remained very stable over a 30-year period and are closely related to strains recovered from sheep in Africa.

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Lira, Kariny Cavalcante de, José Carlos Batista Dubeux, Mário de Andrade Lira та ін. "Tracing sheep binary C3–C4 diet using stable isotope ratio (δ13C)". Italian Journal of Animal Science 20, № 1 (2021): 288–94. http://dx.doi.org/10.1080/1828051x.2021.1881413.

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13

Piccione, Giuseppe, Claudia Giannetto, Stefania Casella, and Giovanni Caola. "Circadian Activity Rhythm in Sheep and Goats Housed in Stable Conditions." Folia Biologica 56, no. 3 (2008): 133–37. http://dx.doi.org/10.3409/fb.56_3-4.133-137.

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14

Martins, M. B., C. Ducatti, C. L. Martins, et al. "Stable isotopes for determining carbon turnover in sheep feces and blood." Livestock Science 149, no. 1-2 (2012): 137–42. http://dx.doi.org/10.1016/j.livsci.2012.07.004.

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15

Balabanova, Tatyana Boryanova, and Mihaela Georgieva Ivanova. "Effect of stage of lactation on somatic cell count in sheep milk of Pleven Blackhead breed." Food Science and Applied Biotechnology 4, no. 1 (2021): 14. http://dx.doi.org/10.30721/fsab2021.v4.i1.124.

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Milk secretion in small ruminants present some particularities for cytoplasmatic particles which are shed in the milk together with leukocytes and epithelial cells. Therefore, a parameter like a somatic cell count is worldwide used as a measurement indicator of subclinical mastitis. The aim of the present study was to establish the change of chemical and microbiological characteristics on the composition of sheep milk, obtained from Pleven Blackhead sheep breed during different stages of lactation. It was established that the chemical characteristics of sheep milk varied widely according to th

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16

Archer, Fabienne, Corinne Bachelin, Olivier Andreoletti, et al. "Cultured Peripheral Neuroglial Cells Are Highly Permissive to Sheep Prion Infection." Journal of Virology 78, no. 1 (2004): 482–90. http://dx.doi.org/10.1128/jvi.78.1.482-490.2004.

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ABSTRACT Transmissible spongiform encephalopathies arise as a consequence of infection of the central nervous system (CNS) by prions. Spreading of the infectious agent through the peripheral nervous system (PNS) may represent a crucial step toward CNS neuroinvasion, but the modalities of this process have yet to be clarified. Here we provide further evidence that PNS glial cells are likely targets for infection by prions. Glial cell clones originating from dorsal root ganglia of transgenic mice expressing ovine PrP (tgOv) and simian virus 40 T antigen were found to be readily infectible by she

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17

Birhan, Getachew Bitew, Justin Manango W. Munganga, and Adamu Shitu Hassan. "Mathematical Modeling of Echinococcosis in Humans, Dogs, and Sheep." Journal of Applied Mathematics 2020 (November 1, 2020): 1–18. http://dx.doi.org/10.1155/2020/8482696.

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In this paper, a model for the transmission dynamics of cystic echinococcosis in the dog, sheep, and human populations is developed and analyzed. We first model and analyze the predator-prey interaction model in these populations; then, we propose a mathematical model of the transmission dynamics of cystic echinococcosis. We calculate the basic reproduction number R 0 and prove that the disease-free equilibrium is globally asymptotically stable, and hence, the disease dies out if R 0 > 1 . We further show that the endemic equilibrium is globally asymptotically stable, and hence, the disease

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18

Hamzić Gregorčič, Staša, Doris Potočnik, Federica Camin, and Nives Ogrinc. "Milk Authentication: Stable Isotope Composition of Hydrogen and Oxygen in Milks and Their Constituents." Molecules 25, no. 17 (2020): 4000. http://dx.doi.org/10.3390/molecules25174000.

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This paper summarises the isotopic characteristics, i.e., oxygen and hydrogen isotopes, of Slovenian milk and its major constituents: water, casein, and lactose. In parallel, the stable oxygen isotope ratios of cow, sheep, and goat’s milk were compared. Oxygen stable isotope ratios in milk water show seasonal variability and are also 18O enriched in relation to animal drinking water. The δ18Owater values were higher in sheep and goat’s milk when compared to cow milk, reflecting the isotopic composition of drinking water source and the effect of differences in the animal’s thermoregulatory phys

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19

Sproston, Emma L., Iain D. Ogden, Marion MacRae, et al. "Temporal Variation and Host Association in the Campylobacter Population in a Longitudinal Ruminant Farm Study." Applied and Environmental Microbiology 77, no. 18 (2011): 6579–86. http://dx.doi.org/10.1128/aem.00428-11.

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ABSTRACTCampylobacter jejuniandC. coliwere quantified and typed, using multilocus sequence typing (MLST), from fecal samples collected from a mixed cattle and sheep farm during summer. Cattle had a significantly higher prevalence than sheep (21.9% [74/338] and 14.0% [30/214], respectively), but both decreased over time. There were no differences in the averageCampylobacterconcentrations shed by cattle (600 CFU g−1) and sheep (820 CFU g−1), although sheep did show a significant temporal reduction in the number ofCampylobacterorganisms shed in their feces. A total of 21 different sequence types

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20

Kwon, Taeyong, Natasha N. Gaudreault, Konner Cool, Chester D. McDowell, Igor Morozov, and Juergen A. Richt. "Stability of SARS-CoV-2 in Biological Fluids of Animals." Viruses 15, no. 3 (2023): 761. http://dx.doi.org/10.3390/v15030761.

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Since its first emergence in 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has continued to evolve genetically, jump species barriers, and expand its host range. There is growing evidence of interspecies transmission including infection of domestic animals and widespread circulation in wildlife. However, knowledge of SARS-CoV-2 stability in animal biological fluids and their role in transmission is still limited as previous studies focused on human biological fluids. Therefore, this study aimed to determine the SARS-CoV-2 stability in biological fluids from three animal sp

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21

Bazzy, A. R., and D. F. Donnelly. "Diaphragmatic failure during loaded breathing: role of neuromuscular transmission." Journal of Applied Physiology 74, no. 4 (1993): 1679–83. http://dx.doi.org/10.1152/jappl.1993.74.4.1679.

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To determine whether central or peripheral mechanisms are responsible for diaphragmatic failure during loaded breathing, phrenic nerve activity (iENG), diaphragm muscle electromyogram (iEMG), and transdiaphragmatic pressure (Pdi) were measured in unanesthetized chronically instrumented sheep during inspiratory flow-resistive (IFR) loaded breathing. After placement of the IFR load, Pdi increased initially and remained relatively stable for 10–30 min [Pdi = 69.9 +/- 6.3 (SE) cmH2O, n = 6]; arterial PCO2 also increased from baseline (35.8 +/- 0.9 Torr) to 55.1 +/- 4.7 Torr. During IFR loading, iE

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22

BOBRYSHOVA, G. T. "THE FUTURE OF SHEEP BREEDING IN THE DEVELOPMENT OF INTENSIVE TECHNOLOGIES." Sheep, goats, woolen business, no. 3 (2021): 14–19. http://dx.doi.org/10.26897/2074-0840-2021-3-14-19.

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The article analyzes and identifi es problematic points on the way of development of domestic sheep breeding. The cost-eff ective development of sheep breeding depends on many factors: correctly selected zoned sheep breeds, the maintenance system, the feed base, breeding work carried out on the farm, mechanization and automation of technological processes, etc. A step-by-step review of the formation and development of one of the most important branches of animal husbandry – sheep breeding, showed that even in the period 1960-1990 last century, it was industrial and profi table, but by 2000, du

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23

Ling, W. D., D. P. Brooks, J. T. Crofton, L. Share, and D. F. Bohr. "Pressor responses to vasopressin in pigs and sheep with DOCA hypertension." American Journal of Physiology-Heart and Circulatory Physiology 256, no. 1 (1989): H101—H104. http://dx.doi.org/10.1152/ajpheart.1989.256.1.h101.

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Pressor responses to vasopressin were determined in pigs and sheep during three experimental periods: 1) before deoxycorticosterone acetate (DOCA) treatment, 2) 21 days after DOCA implantation (100 mg/kg) when a stable hypertension had developed, and 3) after reversal of the hypertension by removing the implant in the sheep or by decreasing the dietary sodium intake in the pigs. The infusion of lysine (LVP) or arginine (AVP) vasopressin into pigs and sheep, respectively, resulted in dose-dependent increases in plasma vasopressin concentration. The levels of plasma LVP or AVP achieved by these

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Coil, David A., John H. Strickler, Sharath K. Rai, and A. Dusty Miller. "Jaagsiekte Sheep Retrovirus Env Protein Stabilizes Retrovirus Vectors against Inactivation by Lung Surfactant, Centrifugation, and Freeze-Thaw Cycling." Journal of Virology 75, no. 18 (2001): 8864–67. http://dx.doi.org/10.1128/jvi.75.18.8864-8867.2001.

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ABSTRACT Jaagsiekte sheep retrovirus (JSRV) replicates in the lungs of sheep and causes the secretion of copious lung fluid containing the virus. Adaptation of JSRV to infection and replication in the lung and its apparent resistance to the denaturing activity of lung fluid suggest that vectors based on JSRV would be useful for gene therapy targeted to the lung. We show here that a retrovirus vector bearing the JSRV Env is stable during treatment with lung surfactant while an otherwise identical vector bearing an amphotropic Env is inactivated. Furthermore, the JSRV vector was stable during ce

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Zasemchuk, Inna Vladimirovna, and Anna Vasilyevna Kopaeva. "THE EFFECT OF DIETS WITH DIFFERENT LEVELS OF METABOLIC ENERGY AND DRY MATTER ON THE WOOL PRODUCTIVITY OF SHEEP." SCIENTIFIC LIFE 19, no. 6 (2024): 1117–22. https://doi.org/10.35679/1991-9476-2024-19-6-1117-1122.

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Sheep of the Karachai breed have a combined productivity and have good meat and wool qualities. In this article, the wool productivity of Karachay sheep was studied. The animals of the Karachai breed were kept in year-round stable keeping, the conditions of keeping were identical with different levels of feeding. The feeding rations of the experimental sheep were adjusted every 2 months to take into account the consumption of feed and live weight of animals, and in the first group of sheep, the rations exceeded the feeding standards for meat, wool and dairy sheep by 25% (in terms of metabolic

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Yu, Yibo, Yun Wang, Liang Zhong, Hongjuan Zhu, and Jiapeng Qu. "Variations in Behavioral and Physiological Traits in Yearling Tibetan Sheep (Ovis aries)." Animals 11, no. 6 (2021): 1676. http://dx.doi.org/10.3390/ani11061676.

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Temperament is a consistent behavioral difference among individuals over time or in different contexts. A comprehensive understanding of temperament and complex behavioral interactions enhances knowledge on animal evolution, welfare, and productivity. However, reports on the development of behavioral consistency over ontogeny are vague. Here, we tested the ontogeny of the temperament and physiological traits of Tibetan sheep (Ovis aries) in three crucial age stages. The mean level of the risk-taking variable increased, while that of the vocalizations variable decreased. The exploration variabl

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Witt, GB, EJ Moll, and RJS Beeton. "Sheep Faeces Under Shearing Sheds: a Documentary of Vegetation Change Using Stable Carbon Isotope Analysis." Rangeland Journal 19, no. 1 (1997): 109. http://dx.doi.org/10.1071/rj9970109.

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In this study we report on a new technique for reconstructing long-tgrm vegetation changes in the Australian rangelands. Sheep faeces, which accumulate annually beneath shearing sheds, provide an untapped and potentially continuous record of vegetation change at a property scale. From stable carbon isotope analysis, inferences about the available vegetation can be made. Our analysis revealed vegetation changes slnce the construction of two sheds, a period of approximately 40 years. Results indicated a significant reduction in the availability of C, grasses on Currawinya (south-west Queensland)

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Topczewska, Jadwiga, and Anna Rogowska. "Assessment of housing conditions in selected horse stables." Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego 13, no. 4 (2017): 67–75. http://dx.doi.org/10.5604/01.3001.0013.5204.

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The objective of the study was to assess housing conditions for horses. Both new and adapted stables were selected for the study. Measurements of the buildings were made, the area of the boxes was calculated, and the equipment was evaluated. The microclimate of the stables was evaluated by means of direct measurements in the boxes and in the corridors in six replications, at 7 am, 2 pm and 7 pm, taking into account the season of the year. The temperature, relative humidity and air speed were measured with a Kastrel 3000 anemometer, and light intensity with a TES-1335 light meter. The concentra

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González, Lorenzo, Francesca Chianini, Nora Hunter, et al. "Stability of murine scrapie strain 87V after passage in sheep and comparison with the CH1641 ovine strain." Journal of General Virology 96, no. 12 (2015): 3703–14. http://dx.doi.org/10.1099/jgv.0.000305.

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Breed- and prion protein (PRNP) genotype-related disease phenotype variability has been observed in sheep infected with the 87V murine scrapie strain. Therefore, the stability of this strain was tested by inoculating sheep-derived 87V brain material back into VM mice. As some sheep-adapted 87V disease phenotypes were reminiscent of CH1641 scrapie, transgenic mice (Tg338) expressing ovine prion protein (PrP) were inoculated with the same sheep-derived 87V sources and with CH1641. Although at first passage in VM mice the sheep-derived 87V sources showed some divergence from the murine 87V contro

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Sumer, Huseyin, Jun Liu, Luis Malaver Ortega, and Paul J. Verma. "INDUCING PLURIPOTENCY IN RUMINANTS." Reproduction, Fertility and Development 24, no. 1 (2012): 285. http://dx.doi.org/10.1071/rdv24n1ab245.

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The generation of ES cell lines in ruminants, including cattle and sheep, has been inefficient with putative ESCs undergoing rapid spontaneous differentiation. Recently direct reprogramming of rodent and primate somatic cells to induced Pluripotent Stem Cells (iPSC) is possible simply by forcing expression of a handful of transcription factors, typically OCT3/4, SOX2, KLF4 and cMYC (OSKM). Using a similar approach we have identified that addition of NANOG to the reprogramming cocktail was essential for the generation of stable bovine induced pluripotent stem cells (biPSC). Conversely, generati

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Zhang, Yufei, Jing Shi, and Shuying Liu. "Establishment and Characterization of a Telomerase-Immortalized Sheep Trophoblast Cell Line." BioMed Research International 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/5808575.

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The primary sheep trophoblast cells (STCs) have a finite lifespan in culture. This feature limits the scope for long-termin vitrostudies with STCs. This study was an attempt to establish and characterize a telomerase-immortalized sheep trophoblast cell line. STCs were isolated and purified by using Percoll and specific immunoaffinity purification, respectively. The purified STCs were transfected with a plasmid carrying sequences of human telomerase reverse transcriptase (hTERT) to create immortalized sheep trophoblast cell line (hTERT-STCs). hTERT-STCs showed a stable expression of hTERT gene,

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Zhao, Yao, Jia Sun, Mengqi Ding, Romaan Hayat Khattak, Liwei Teng, and Zhensheng Liu. "Growth Stages and Inter-Species Gut Microbiota Composition and Function in Captive Red Deer (Cervus elaphus alxaicus) and Blue Sheep (Pseudois nayaur)." Animals 13, no. 4 (2023): 553. http://dx.doi.org/10.3390/ani13040553.

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Blue sheep and red deer, second-class key protected animals in China, are sympatric species with a high degree of overlap of food resources in the Helan Mountains, China. Previous studies with blue sheep and red deer in nature have shown that their physiology is closely related to their gut microbiota. However, growth stages and changes occurring in these species in captivity are still unknown. Thus, 16S rRNA gene sequencing was used to explore diversity, composition and function of the gut microbiota in these two animal species. The diversity and structure of the gut microbiota in captive blu

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Liu, Shu-Min, Zhenguo Bai, and Gui-Quan Sun. "Global dynamics of a reaction-diffusion brucellosis model with spatiotemporal heterogeneity and nonlocal delay." Nonlinearity 36, no. 11 (2023): 5699–730. http://dx.doi.org/10.1088/1361-6544/acf6a5.

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Abstract The increase of animal transportation and livestock lead to repeated outbreaks of brucellosis, and its transmission process is extremely complex. According to the clinical symptoms and infectious differences of the diseased sheep, it is further divided into acute infection and chronic infection, and a reaction-diffusion SLICB (susceptible-latent-acute infected-chronic infected-brucella) model with seasonality, spatial heterogeneity and nonlocal delay is proposed to understand the transmission law of brucellosis and analyze its transmission risk. Based on the basic reproduction number

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Mason, J., M. Lamand, J. C. Tressol, and G. Mulryan. "Studies of the changes in systemic copper metabolism and excretion produced by the intravenous administration of trithiomolybdate in sheep." British Journal of Nutrition 59, no. 2 (1988): 289–300. http://dx.doi.org/10.1079/bjn19880036.

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1. The effects of intravenous trithiomolybdate administration on the fate of 64Cu and on stable Cu metabolism were examined in sheep held in metabolism cages and fed on a low-Cu diet supplying 2·95 mg Cu/animal per d.2. In Expt 1 the injection of trithiomolybdate, 30 mg molybdenum/sheep per d for 5 d, greatly increased plasma Cu levels and more than doubled the faecal Cu excretion. Urinary Cu excretion was unaffected. The disappearance from plasma of 64Cu injected during the trithiomolybdate administration was slowed although faecal 64Cu excretion was increased more than threefold.3. In Expt 2

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Nogin, Sergey, Bagama Bagamaev, and Viktor Mikhailenko. "COMPARATIVE EXTENSITY AND INTENSITY OF ESTROSIS IN SHEEP DEPENDING ON ANTIPARASITIC TREATMENTS." Agrarian Bulletin of the North Caucasus 52, no. 4 (2023): 14–17. https://doi.org/10.31279/2949-4796-2023-4-52-14-17.

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The period from the beginning of spring to the end of October is the most dangerous period for sheep. It is at this time that sheep gadflies (Oestrus ovis) are activated, which lay larvae in the nasal cavity of animals. In the future, parasites attack the nasal mucosa, frontal, horny and maxillary sinuses. In the body of a sheep, more than 100 larvae can remain from the vital activity of just one female gadfly, which bother the animal throughout the year. Infection with larvae of sheep gadfly is called «estrosis of sheep». It is dangerously high risk of infection, inflammation of the nasal cav

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Kachalin, Mikhail D., Sergey V. Posyabin, and Elena N. Borkhunova. "Method for inducing generalized gonarthrosis in sheep: clinical and morphological data." Veterinariya, Zootekhniya i Biotekhnologiya 8, no. 117 (2023): 6–17. http://dx.doi.org/10.36871/vet.zoo.bio.202308001.

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The article presents data on the results obtained when creating a model of induced gonarthrosis in sheep. Creating a model of osteoarthritis, which is easily executable, gives a stable result and corresponds to osteoarthritis in clinical and morphological terms – an important task of arthrology. We adapted the method of modeling osteoarthritis. The method previously used in dogs and laboratory animals is implemented in sheep.The technique consists in desmotomy of the anterior cruciate ligament, which makes it possible to obtain instability in the knee joint, leading to destructive changes in t

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Paterson, Adrienne C., Graham S. Baldwin, and Arthur Shulkes. "Metabolism of recombinant progastrin in sheep." American Journal of Physiology-Endocrinology and Metabolism 283, no. 3 (2002): E449—E456. http://dx.doi.org/10.1152/ajpendo.00042.2002.

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Precursor forms of peptide hormones may be biologically active with effects distinct from the mature end product. Nonamidated progastrin-derived peptides stimulate growth of colonic epithelium and are elevated in the circulation of patients with colorectal carcinomas, whereas the amidated end product is the major regulator of gastric acidity. Using region-specific radioimmunoassays, we here compared the in vitro and in vivo metabolism of recombinant human progastrin-(6–80) and two other nonamidated gastrins, gastrin-17-Gly and Tyr70-progastrin-(71–80). Although progastrin-(6–80) was very stabl

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Scheidweiler, Karl B., Jalil Shojaie, Mark A. Plessinger, Ronald W. Wood, and Tai C. Kwong. "Stability of Methylecgonidine and Ecgonidine in Sheep Plasma in Vitro." Clinical Chemistry 46, no. 11 (2000): 1787–95. http://dx.doi.org/10.1093/clinchem/46.11.1787.

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Abstract Background: Crack smokers are exposed to a pyrolysis product, methylecgonidine (MEG), which can be used as an analytical marker for crack smoking. Ecgonidine (EC), a hydrolytic product of MEG, has been identified in urine of crack smokers. MEG undergoes conversion to EC, complicating analysis and perhaps explaining a lack of forensic blood specimens containing MEG. Methods: We developed gas chromatography–mass spectrometry (GC-MS) assays for MEG and EC. Plasma was collected from sheep blood containing 0, 0.06, or 0.24 mol/L (0%, 0.25%, or 1%) NaF. MEG was added to these plasmas, and t

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Sulistio, Joko, and Nagusta Tri Budiawan. "Kelayakan Usaha Peternakan Domba Padukuhan Wonosobo, Sardonoharjo, Ngaglik, Sleman, DI Yogyakarta." Journal of Approriate Technology for Community Services 5, no. 2 (2024): 121–28. http://dx.doi.org/10.20885/jattec.vol5.iss2.art2.

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Increased public consciousness regarding the significance of meeting nutritional needs, such as calories and animal protein, causes the demand for food from livestock to increase, one of which is sheep meat. The rising population contributes to a continual increase in the demand for sheep. This study aims to assess the viability of the livestock industry in the Sardonoharjo Sub-Village of Wonosobo, Ngaglik Kapanewon, Sleman Regency. This study uses different models in animal husbandry, namely the first (X1) sheep farming in general and the second (X2) farming with farmer partners. Then the inv

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Liang, Yu, Bishi Zhao, Yan Shen, et al. "Elucidating the Role of circTIAM1 in Guangling Large-Tailed Sheep Adipocyte Proliferation and Differentiation via the miR-485-3p/PLCB1 Pathway." International Journal of Molecular Sciences 25, no. 9 (2024): 4588. http://dx.doi.org/10.3390/ijms25094588.

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Fat tissue—a vital energy storage organ—is intricately regulated by various factors, including circular RNA, which plays a significant role in modulating fat development and lipid metabolism. Therefore, this study aims to clarify the regulatory mechanism of sheep adipocyte proliferation and differentiation by investigating the involvement of circTIAM1, miR-485-3p, and its target gene PLCB1. Through previous sequencing data, circTIAM1 was identified in sheep adipocytes, with its circularization mechanism elucidated, confirming its cytoplasmic localization. Experimental evidence from RNase R tre

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Huang, Yifei, Stephen N. Hunyor, Lele Jiang, et al. "Remodeling of the chronic severely failing ischemic sheep heart after coronary microembolization: functional, energetic, structural, and cellular responses." American Journal of Physiology-Heart and Circulatory Physiology 286, no. 6 (2004): H2141—H2150. http://dx.doi.org/10.1152/ajpheart.00829.2003.

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The mandatory use of pharmacotherapy in human heart failure (HF) impedes further study of natural history and remodeling mechanisms. We created a sheep model of chronic, severe, ischemic HF [left ventricular (LV) ejection fraction (LVEF) <35% stable over 4 wk] by selective coronary microembolization under general anesthesia and followed hemodynamic, energetic, neurohumoral, structural, and cellular responses over 6 mo. Thirty-eight sheep were induced into HF (58% success), with 23 sheep followed for 6 mo (21 sheep with sufficient data for analysis) after the LVEF stabilized (median of 3 emb

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Sun, Chen, Ningning Dong, Yaowu Hu, et al. "Sheep for the soldiers: Stable isotope evidence for sheep management at the Shichengzi fort, Xinjiang and its implications for Han frontier interaction." Journal of Archaeological Science: Reports 46 (December 2022): 103715. http://dx.doi.org/10.1016/j.jasrep.2022.103715.

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Oliva, Gabriel, Daniela Ferrante, Silvina Puig, and Marcos Williams. "Sustainable sheep management using continuous grazing and variable stocking rates in Patagonia: a case study." Rangeland Journal 34, no. 3 (2012): 285. http://dx.doi.org/10.1071/rj12016.

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Adaptive rangeland management based on continuous grazing by sheep was implemented at Los Pozos station, on the Magellan tussock steppes of southern Patagonia, between 1990 and 2010. The numbers of sheep were adjusted annually following a stocking strategy tracking the herbage mass. Herbage mass was assessed by harvesting short grass species at peak herbage mass and grazing capacity was estimated based on sheep requirements. Historic production records under a traditional continuous grazing management (1930–89) were contrasted with those of the adaptive management period (1990–2010). Stocking

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Romero-Figueroa, Guillermo, Enrique de Jesús Ruiz-Mondragón, Eahsan Shahriary, et al. "Population and Conservation Status of Bighorn Sheep in the State of Baja California, Mexico." Animals 14, no. 3 (2024): 504. http://dx.doi.org/10.3390/ani14030504.

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The bighorn sheep in Mexico is classified as at-risk by the Mexican federal government. In the state of Baja California, wild sheep can be observed throughout the length of the state from the USA–Mexico border south to the Agua de Soda mountain range. This research aimed to document the historical trend of the bighorn population based on aerial surveys conducted in 1992, 1995, 1999, 2010, and 2021, and the abundance, distribution, and structure of bighorn sheep populations in Baja California, based on an aerial survey conducted from 8–14 November 2021, covering thirteen mountain ranges. The es

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DYUSEGALIYE, MUKHIT, UTENBERGEN BISENOV, AYMAN NURGALIYEVA, and ELMIRA ADIETOVA. "Index selection of Kazakh karakul sur-type sheep with platinum shades." Medycyna Weterynaryjna 77, no. 01 (2021): 6492–2021. http://dx.doi.org/10.21521/mw.6492.

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Aim of the study: Karakul sheep farming is one of the effective subsectors of animal breeding in the southwestern region of Kazakhstan. Sheep coloring is a result of genetic factors. Breeding can provide farmers with offspring of the desired color through the selection of parental couples. Materials: This research introduces an index method for breeding sur-type sheep with the proportion of underfur fibers under 25%. Such a proportion of underfur fibers provides a 15.25% deeper color within the breed at the 25.3% higher chance of getting platinum shades. Methods: Platinum coloring in sheep mak

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Bazzy, A. R., L. M. Pang, S. R. Akabas, and G. G. Haddad. "O2 metabolism of the sheep diaphragm during flow resistive loaded breathing." Journal of Applied Physiology 66, no. 5 (1989): 2305–11. http://dx.doi.org/10.1152/jappl.1989.66.5.2305.

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To determine whether O2 availability limited diaphragmatic performance, we subjected unanesthetized sheep to severe (n = 11) and moderate (n = 3) inspiratory flow resistive loads and studied the phrenic venous effluent. We measured transdiaphragmatic pressure (Pdi), systemic arterial and phrenic venous blood gas tensions, and lactate and pyruvate concentrations. In four sheep with severe loads, we measured O2 saturation (SO2), O2 content, and hemoglobin. We found that with severe loads Pdi increased to 74.7 +/- 6.0 cmH2O by 40 min of loading, remained stable for 20–30 more min, then slowly dec

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Mandapati, Ravi, Allan Skanes, Jay Chen, Omer Berenfeld, and José Jalife. "Stable Microreentrant Sources as a Mechanism of Atrial Fibrillation in the Isolated Sheep Heart." Circulation 101, no. 2 (2000): 194–99. http://dx.doi.org/10.1161/01.cir.101.2.194.

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Pearson, Jessica, and Matt Grove. "Counting sheep: sample size and statistical inference in stable isotope analysis and palaeodietary reconstruction." World Archaeology 45, no. 3 (2013): 373–87. http://dx.doi.org/10.1080/00438243.2013.820646.

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Pavlo, Andrew, Matthew Butrovich, Lin Ma, et al. "Make your database system dream of electric sheep." Proceedings of the VLDB Endowment 14, no. 12 (2021): 3211–21. http://dx.doi.org/10.14778/3476311.3476411.

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Database management systems (DBMSs) are notoriously difficult to deploy and administer. Self-driving DBMSs seek to remove these impediments by managing themselves automatically. Despite decades of DBMS auto-tuning research, a truly autonomous, self-driving DBMS is yet to come. But recent advancements in artificial intelligence and machine learning (ML) have moved this goal closer. Given this, we present a system implementation treatise towards achieving a self-driving DBMS. We first provide an overview of the NoisePage self-driving DBMS that uses ML to predict the DBMS's behavior and optimize

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Jarmuji, Jarmuji. "Kurva Laktasi Induk Domba Jonggol (Domba Ekor Tipis) Berdasarkan Umur Induk yang Dipelihara dengan Sistem Penggembalaan Grazing System." Jurnal Sain Peternakan Indonesia 9, no. 1 (2014): 51–59. http://dx.doi.org/10.31186/jspi.id.9.1.51-59.

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ABSTRACTThe objectives of this research were to know the effect of ewe’s age on curve of milk yield reared on grazing. This research was done in The Jonggol Animal Science Teaching, and Research Unit (JASTRU) located in Singasari Village, Jonggol, Bogor district. As many 100 local sheep comprises of pregnant and lactating ewes on average 1-4 years old were used in this research. The sheeps were grazed from 9 a.m. to 4 p.m. and housed on night. The result showed that ewe’s age different effect its of curve milk yield. Lactation peak is expected within 1-2 weeks of lambing, followed by a decreas

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