ИММУНОГЕНЕТИЧЕСКИЕ ОСОБЕННОСТИ КОРОВ КРАСНО-ПЁСТРОЙ ПОРОДЫ В ЗАВИСИМОСТИ ОТ ИХ ЛИНЕЙНОЙ ПРИНАДЛЕЖНОСТИ

The paper explores the urgency of increasing efficiency of breeding Red-and-White dairy cattle that take the main part of the population in the Krasnoyarsk region (69.7%), the immunogenetic characteristics of animals that belong to Montwick Chiftein and Pabst Hoverner (n=52) lines. The research on the blood groups of cows were conducted in the laboratory of immunogenetic analysis of Krasnoyarskagroplem. The authors revealed the differences in the incidence of specific antigens in the cows of two lines. The article found out that antigens A’2, B2, E’3, O3, and T2 (P>0.95-0.99) were found to be more frequent in Montwick Chiftein line cows, and antigen P2 (P>0.95) wasfound in Pabst Governer line cows. It was also revealed that the most rare antigens in the Montwick Chifthein line are antigens A’, A’1, O2, O4, Y1, R1, X1, M and E’2, and antigens B’’, O4, U and U’’in the Pabst Governer line. Interestingly, the authors identified the antigens that were not present in the animals of both lines and in each line separately. The average index of antigen incidence in the cows of each line showed a relatively low value. Due to this the authors made a conclusion about a high degree of heterozygosity of the studied individuals. The index of genetic similarity among the animals of two lines demonstrates a high value of 0.863. The polymorphism of the antigens in the EAF-V locus was studied and a significant incidence predominance in cows of the F allele over the V allele was found out. The impact of genotype according to the EAF-V locus on dairy productivity and live weight of the cows was determined: in the Montwick Chifthein line, cows with the FF genotype (5986,60172,41 kg) had a higher yield, in the Pabst Governer line - with the FV genotype (5914,20208,19 kg). Animals of both lines that had genotype V/V had higher live weight parmeters than animals with genotypes F/V and F/F. The comparative analysis of the obtained results was carried out with the results of other Russian authors who conducted similar studies.В связи с актуальностью повышения эффективности селекции молочного скота красно-пестрой породы, занимающего основную долю популяции в Красноярском крае (69,7%), изучены иммуногенетические особенности животных, принадлежащих к линиям Монтвик Чифтейн и Пабст Говернер (n=52). Исследования по определению групп крови коров проведены в лаборатории иммуногенетической экспертизы Краснояркагроплема. Выявлены отличия по частоте встречаемости отдельных антигенов у коров двух линий. Установлено, что у коров линии Монтвик Чифтейн значительно чаще встречались антигены Aʹ 2, В2 , Bʹ, E′3 , O3 , Pʹ 2 , T2 иUʹ (P>0,95–0,99), а у коров линии Пабст Говернер – антигены Eʹ 2 , G2 , P2 , T1 и X1 (P>0,95). Также выявлено, что в линии Монтвик Чифтейн наиболее редко встречаются антигены A′1 , O2 , O4 , Y1 , R1 и X1 , а в линии Пабст Говернер – антигены O4 , Pʹ 2 Q, U и U′. Помимо этого определены антигены, отсутствующие у животных каждой линии. Средний индекс встречаемости антигенов у коров каждой линии показал относительно низкое значение, из чего был сделан вывод о высокой степени гетерозиготности исследуемых особей. Индекс генетического сходства между животными двух линий показал высокое значение – 0,937. Изучен полиморфизм антигенов в локусе EAF-V и установлено значительное преобладание частоты встречаемости у коров аллеля F над аллелем V. Определено влияние генотипа по локусу EAF-V на молочную продуктивность и показатели живой массы коров: в линии Монтвик Чифтейн более высокий удой имели коровы с генотипом FF (5986,60±172,41 кг), разница с коровами генотипа FV составила 556,6 кг (P>0,95). Проведен сравнительный анализ полученных результатов с результатами других российских авторов, которые проводили аналогичные исследования

Transient Grating Spectroscopy in Magnetic Thin Films:Simultaneous Detection of Elastic and Magnetic Dynamics

Surface magnetoelastic waves are coupled elastic and magnetic excitations that propagate along the surface of a magnetic material. Ultrafast optical techniques allow for a non-contact excitation and detection scheme while providing the ability to measure both elastic and magnetic components individually. Here we describe a simple setup suitable for excitation and time resolved measurements of high frequency magnetoelastic waves, which is based on the transient grating technique. The elastic dynamics are measured by diffracting a probe laser pulse from the long-wavelength spatially periodic structural deformation. Simultaneously, a magnetooptical measurement, either Faraday or Kerr effect, is sensitive to the out-of-plane magnetization component. The correspondence in the response of the two channels probes the resonant interaction between the two degrees of freedom and reveals their intimate coupling. Unraveling the observed dynamics requires a detailed understanding of the spatio-temporal evolution of temperature, magnetization and thermo-elastic strain in the ferromagnet. Numerical solution of thermal diffusion in two dimensions provides the basis on which to understand the sensitivity in the magnetooptic detection

Investigation of InP etching mechanisms in a Cl<SUB>2</SUB>/H<SUB>2</SUB> inductively coupled plasma by optical emission spectroscopy

International audienceOptical emission spectroscopy (OES) has been used in order to investigate the InP etching mechanisms in a Cl2H2 inductively coupled plasma. The authors have previously shown that anisotropic etching of InP could be achieved for a H2 percentage in the 35%45% range where the InP etch rate also presents a local maximum [ J. Vac. Sci. Technol. B 24, 2381 (2006) ], and that anisotropic etching was due to an enhanced passivation of the etched sidewalls by a silicon oxide layer [ J. Vac. Sci. Technol. B 26, 666 (2008) ]. In this work, it is shown that this etching behavior is related to a maximum in the H atom concentration in the plasma. The possible enhancement of the sidewall passivation process in the presence of H is investigated by comparing OES measurements and etching results obtained for Cl2H2 and Cl2Ar gas mixtures

Time-resolved study of a pulsed dc discharge using quantum cascade laser absorption spectroscopy : NO and gas temperature kinetics

In a pulsed dc discharge of an Ar–N2 mixture containing 0.91% of NO the kinetics of the destruction of NO has been studied under static and flowing conditions, i.e. in a closed and open discharge tube (p = 266 Pa). For this purpose quantum cascade laser absorption spectroscopy (QCLAS) in the infrared spectral range has been applied as a new approach for fast in situ plasma diagnostics which is capable of achieving a time resolution below 100 ns. The time decay of the NO concentration was measured in single discharge pulses of 1 ms duration. Additionally, the temporal behaviour of the electric field and the applied power was followed during the pulse. The comparison of the time evolution of the NO concentration under static and flowing conditions and simplified model calculations enabled an analysis of the dynamics of the plasma heating to be made. The temperature increase during the pulse is below 40 K, but has a strong influence on the line strength of the NO absorption line. The apparent decrease in the NO concentration in a single pulse of about 20% is due to the heating of the gas which in turn makes the line strength vary while the concentration remains constant for several successive pulses. Therefore the QCLAS measurements combined with model calculations are a powerful non-invasive temperature probe with a remarkable time resolution approaching the sub-microsecond time scale

Inductive plasmas in Cl<SUB>2</SUB>/Ar : Comparison of hybrid model results with experimental measurements

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Plasma inductif en Cl<SUB>2</SUB>/Ar : comparaison entre simulations hybrides et expériences

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Photocatalyst activation in a pulsed low pressure discharge

The effect of combining plasma and photocatalyst for Volatile Organic Compounds (VOC) removal was investigated in a pulsed low-pressure dc discharge. The photocatalyst was TiO2 while the VOC was acetylene (1000 ppm) diluted in dry air. The temporal evolution of C2H2 concentration was measured by Tunable Diode Laser Absorption Spectroscopy (TDLAS) in the mid-infrared region during the plasma pulse (one second). The contribution of external ultraviolet radiation and plasma exposure were quantified, both with and without a photocatalyst. The synergetic effect was clearly demonstrated

Electron densities and temperatures in a Cl<SUB>2</SUB>/Ar ICP

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