Intensive fattening in housing conditions of young sheep Merino type

The intensive fattening in housing conditions of Merino young sheep implies monthey food rations containing approximately 100/110 g RDP/ 1 NMU. Under these conditions the animals can reach almost 48 kg from the initial 28 in about 93 days, so the total growth increase is of 20 kg, accepted by the aliment costs. The second lot which was administrated a mixture of concentrated fodder with an intermediary content of digestive albumin also has the presented average indices

STUDY ON N.T.G. AND ESCHERICHIA COLI CONTAMINATION OF CATTLE AND PIG CARCASSES

The total number of germs (NTG), determined during the technological flow of processing of cattle in the slaughterhouse, provided values between 4.8 - 6.8 log CFU/cm2 after the skinning stage and 3.1-5.2 log CFU/cm2 after the cooling stage.The highest values were recorded after the skinning stage in the inner thigh region, and the lowest after the cooling stage in the chest region .In pigs, NTG recorded higher values, between 4.2 - 5.8 log CFU/m2 after the scalding stage and 4.2 -7.1 log CFU/cm2 after evisceration. The highest values were obtained after the evisceration stage in the external region of the thigh, and the lowest after the scalding stage in the chest region

A new data assimilation procedure to develop a debris flow run-out model

Abstract Parameter calibration is one of the most problematic phases of numerical modeling since the choice of parameters affects the model\u2019s reliability as far as the physical problems being studied are concerned. In some cases, laboratory tests or physical models evaluating model parameters cannot be completed and other strategies must be adopted; numerical models reproducing debris flow propagation are one of these. Since scale problems affect the reproduction of real debris flows in the laboratory or specific tests used to determine rheological parameters, calibration is usually carried out by comparing in a subjective way only a few parameters, such as the heights of soil deposits calculated for some sections of the debris flows or the distance traveled by the debris flows using the values detected in situ after an event has occurred. Since no automatic or objective procedure has as yet been produced, this paper presents a numerical procedure based on the application of a statistical algorithm, which makes it possible to define, without ambiguities, the best parameter set. The procedure has been applied to a study case for which digital elevation models of both before and after an important event exist, implicating that a good database for applying the method was available. Its application has uncovered insights to better understand debris flows and related phenomena

Theory of collective Raman scattering from a Bose-Einstein condensate

Recent experiments have demonstrated superradiant Raman scattering from a Bose-Einstein condensate driven by a single off-resonant laser beam. We present a quantum theory describing this phenomenon, showing Raman amplification of matter wave due to collective atomic recoil from 3-level atoms in a $\Lambda$-configuration. When atoms are initially in a single lower internal state, a closed two-level system is realized between atoms with different internal states, and entangled atom-photon pairs can be generated. When atoms are initially prepared in both the lower internal states, a fraction of atoms recoiling in the backward direction can be generated.Comment: 5 pages, 2 figure

Superradiant light scattering from a moving Bose-Einstein condensate

We investigate the interaction of a moving BEC with a far detuned laser beam. Superradiant Rayleigh scattering arises from the spontaneous formation of a matter-wave grating due to the interference of two wavepackets with different momenta. The system is described by the CARL-BEC model which is a generalization of the Gross-Pitaevskii model to include the self-consistent evolution of the scattered field. The experiment gives evidence of a damping of the matter-wave grating which depends on the initial velocity of the condensate. We describe this damping in terms of a phase-diffusion decoherence process, in good agreement with the experimental results

MiR-205-5p inhibition by locked nucleic acids impairs metastatic potential of breast cancer cells

Mir-205 plays an important role in epithelial biogenesis and in mammary gland development but its role in cancer still remains controversial depending on the specific cellular context and target genes. We have previously reported that miR-205-5p is upregulated in breast cancer stem cells targeting ERBB pathway and leading to targeted therapy resistance. Here we show that miR-205-5p regulates tumorigenic properties of breast cancer cells, as well as epithelial to mesenchymal transition. Silencing this miRNA in breast cancer results in reduced tumor growth and metastatic spreading in mouse models. Moreover, we show that miR-205-5p knock-down can be obtained with the use of specific locked nucleic acids oligonucleotides in vivo suggesting a future potential use of this approach in therapy

RESEARCH REGARDING THE PRESENCE OF LISTERIA SPECIES IN MILK FOOD PRODUCTS

Out of the total 232 analysed samples,12 (5,17%) were Listeriaspp positive., andout of these latter ones 7 (3,02 %) Listeria monocytogenes stems, 4 (1,72 %) Listeria innocua stems and one (0,43 %) Listeria welshimeri stem were isolated. The presence of Listeriaspp was found in the analysed products in the following percentages: in pasteurised cows` milk 6,45 %, in cows` milk obtained from unpasteurised milk 4,25 %,in cream obtained from unpasteurised milk 6,66 %, and in fresh ewe`s curd 6,25 %. Listeria monocytogenes species was prevalent in the positive samples with a percentage of 58,33 %, while the other species were considered as having no pathogenic significance. Listeria monocytogenes was not isolated in the samples coming from pasteurised cows` milk and this makes us think that this thermal proceeding is efficient for destroying the listerias

INFLUENCE TANK SOMATIC CELL COUNT COOLING THE COMPOSITION OF MILK COW

The experiment was done on samples of milk collected from the farm SCDA Simnic bulk tank milk in the summer of 2010. The fallowing parameters were determined: somatic cell count, fat, solid non-fat, protein,urea nitrogen and the test for antibiotic or inhibitory substances. High somatic cell count milk has lower protein and solid non-fat levels and increased levels of fat than low cell count milk. Mean milk urea nitrogen of 12.68 indicates a possible dietary deficiency. No antibiotic or inhibitory substances were detected

QUALITY PARAMETERS MILK IN HOLSTEIN COWS MILLING WITH HIGH YIELDS MILK

The aim of this study was to determine if season of the year influence the new milk quality parameters. The experiment was done on samples of milk collected from 50 high producing Holstein cows.The following  parameters were determined: somatic cell count, fat and protein content, water added, freezing point and test for antibiotic or inhibitory substances. The season of the year is influenced somatic cell count fat and protein content but not , freezing point. No water added and no antibiotic or inhibitory substances were detected.

Parametric optimization for an x-ray Free Electron Laser with a laser wiggler

In this paper we optimize the experimental parameters to operate a Free Electron Laser with a laser wiggler in the Angstrom region. We show that the quantum regime of the Self Amplified Spontaneous Emission (Quantum SASE) may be reached with realistic parameters. The classical SASE regime is also discussed and compared with the quantum regime.Comment: submitted to Phys.Rev.ST-A