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Effects Of Diet During The First Winter On Replacement Heifer Weight Gain And Body Condition Score During The Subsequent Grazing Season, Emer Kennedy, Fergal Coughlan, Steven Fitzgerald, John Paul Murphy

IGC Proceedings (1977-2023)

In seasonal calving dairy production systems it is important that heifers attain puberty in an appropriate timeframe especially when they are bred to calve at 2 years of age and in systems that impose restricted breeding periods (Ferrell, 1982). Achieving target weights at key time points is critical because, for example, the onset of puberty usually occurs in dairy heifers at 30-40% of their expected mature BW (Heinrichs 1993) which corresponds to approximately 240-320 kg in Holstein heifers. Furthermore, heifers should be managed to achieve 55% to 60% of mature bodyweight (BW) at mating start date (MSD; Patterson et al …

Developing And Implementing Animal Welfare Assessments On Extensive And Intensive Grassland Systems: An Overview, Nguyen Xuan Trach, Bob Kilgour

IGC Proceedings (1977-2023)

While several definitions of animal welfare exist, in this paper we use the concept of the Five Freedoms. The Five Freedoms are freedom from hunger, thirst and malnutrition; freedom from discomfort; freedom from pain, injury and disease; freedom from fear and distress; freedom to perform normal behavior. While the idea of the Five Freedoms has limitations, it is still a widely-used conceptualization of animal welfare and we use it here to discuss the welfare of cattle in intensive and extensive management systems in Vietnam and Australia. Compared to extensive pasture systems, intensive management systems do result in heightened animal welfare …

The Evolving Beef Industry And Its Sustainability In Western China, J. P. Wu, Z. M. Lei, L. P. Zhang, X. R. Wang, S. G. Zhao, C. Q. Zhang, G. H. Sun, S. G. Li

IGC Proceedings (1977-2023)

The beef industry in China has started to develop since the 1980s. Since then, its production system has been evolving significantly from subsistence production towards business operation in farmer households. As demands continue to grow, China will become the largest beef consumption country in the world by the year of 2025. The beef production in China’s western agriculture regions is gaining significant role in the beef industry of China. Utilization of corn stover and other agriculture aftermath is seen as the competitive advantage of development of the beef industry. Over the last 30 years the beef production efficiency has been …

The Place Of Crossbred Lambs In Australian Lamb Production, David L. Hopkins, Suzanne I. Mortimer, Jessica S. Richards

IGC Proceedings (1977-2023)

The Australian sheep industry, particularly the lamb meat sector has undergone a major change in focus, such that consumer requirements are a paramount determinant for production and processing developments. This change has been facilitated by the use of cross breeding production systems where the benefits of heterosis are captured and the implementation of a performance recording system amongst initially, breeders of terminal sires. This sector of the industry has strongly embraced genetic selection using objectively measured traits and this is one of the contributors to the superior growth rate of crossbred progeny over pure bred progeny. A crossbreeding system does …

Developing A Diet Authentication System From The Composition Of Meat In Ruminants, F. J. Monahan, A. P. Moloney, O. Schmidt

IGC Proceedings (1977-2023)

As consumer interest in the link between diet and human health and in the ethics of food production increases assurances about the background origin of food are sought. In the case of animal-derived foods, such as meat, the animal’s diet is an intrinsic component of the food’s production and of its subsequent nutritional quality. Thus, there is a need to develop ways of validating the authenticity of the animal diet. Among the approaches to authenticate the background diet of ruminants is the measurement of components in meat (muscle and adipose tissue) and other tissues that are directly influenced by the …

Effect Of Harvest Stage On Forage Yield And Nutritional Value Of Winter And Spring Triticale Genotypes, Abidi Sourour, Ben Youssef Salah, Jlidi Refka

IGC Proceedings (1977-2023)

Triticale grain is the first human made cereal created by 1875. It grows in most climates on acidic soils and in extreme temperature conditions. Moreover, the low value of triticale flour makes it a cereal mainly for animal feed as grain or forage (Varughese et al. 1987). It is well suited for dual purpose use (forage + grain + fodder or fodder, Ben Youssef et al. 2000) and as green forage, silage or hay (Delogu et al. 2001). In Tunisia, triticale was introduced by INRAT but its utilization has not been fully developed in Tunisia. The maximum …

Performance Of Medicago Varia Cv. Gannong No.1 And Onobrychis Viciaefolia Cv. Gansu In The Mixed Agricultural And Pastoral Zone Of Western China, X. R. Wang, J. P. Wu, Z. M. Lei, Y. Liu, T. Liu, B. J. Chen

IGC Proceedings (1977-2023)

Western China is mostly covered with natural grasslands, particularly in mountainous and alpine areas. Here agriculture and grazing pastures with livestock are widely integrated. Overgrazing and forage shortages are prominent problems for animal production. Cold weather and long drought periods can also lead to serious feed shortages, especially of high quality protein forages (Liu et al. 2010). Planting perennial forages with high nutritive value is an important way of increasing forage supply and relieving grassland degradation. Medicago varia L. cv. Gannong No.1 (Medicago) and Onobrychis viciaefolia Scop. cv. Gansu (sainfoin) are examples of perennial legumes with high …

Successful Establishment Of Oversown Chicory And Plantain On Uncultivatable Hill Country, Grant B. Douglas, Katherine N. Tozer, Catherine Cameron, Tom J. Fraser, Paul D. Muir, Ray A. Moss, Grant M. Rennie, Trevor L. Knight

IGC Proceedings (1977-2023)

All-year grazing of livestock on steep, non-arable hill country (> 20^o slope angle, < 1,000 m elevation) is a significant feature of New Zealand agriculture. Hill country pastures are in various states of improvement depending on factors such as extent of subdivision, fertiliser inputs, plant species introduction, and grazing management. Numerous introduced grass, legume and herb species are available to match the many micro-sites in steep hill country (Kemp et al. 1999).

There has been increasing use of the perennial herbs chicory (Chicorium intybus L.) and plantain (Plantago lanceolata L.) in seed mixtures used on a range of topographies, mostly flat to undulating terrain. Advantages of these species include tolerance of drought and high summer temperatures, highly palatable foliage, enhanced mineral content, and high animal growth rates (Stewart 1996; Li and Kemp 2005). Farmers have sown these species on hill country but there is negligible information on their establishment in such landscapes. …

Evaluation Of Crop Production And Water Use Efficiency Of Autumn-Sown Annual Forage Crops On The Rainfed Region Of Loess Plateau China, Qingping Zhang, Lihua Tian, Yuanbo Liu, Lindsay W. Bell, Jeremy P. M. Whish, Yuying Shen

IGC Proceedings (1977-2023)

The Loess Plateau is one of the most important rainfed regions in China, but rainfall is the most significant factor limiting crop production. In this region rainfall from July to September accounts for 56% of the annual total, providing enough water resources for the growth of autumn-sown crops. Although increasing forage production with autumn sown crops is considered an important means of balancing crop forage and livestock management, suitable species with high yields and good water use efficiency (WUE) are not well defined.

The relationship between yield and water use efficiency has been shown to vary with plant species and …

Characterizing Feeds And Feed Availability In Sud-Kivu Province, Dr Congo, Samy B. Bacigale, Birthe K. Paul, Fabrice L. Muhimuzi, Neville Mapenzi, Michael Peters, Brigitte L. Maass

IGC Proceedings (1977-2023)

Animal husbandry in the Sud-Kivu province of the Democratic Republic of the Congo (DRC) is gradually moving towards stall feeding, due to demographic pressure (Battistin et al. 2009) and scarcity of collectable forages (DSRP-RDC 2005). Therefore, feed is considered one of the main constraints faced by livestock production, especially in the dry season (Katunga et al. 2009; Maass et al. 2012). Unaffordable, fluctuating prices and inaccessibility of feed concentrates and the lack of improved forages adapted to marginal conditions, making them non-competitive with food crops, further exacerbate the livestock feeding situation. This study within the African Food …

Features Of The Physical Properties Of The Modified Surface Of The P-Cdte – Znse Film Heterostructure With Deep Impurity Levels, Yuozas Y. Vaytkus, Nodir E. Alimov, Salim M. Otajonov

Scientific Bulletin. Physical and Mathematical Research

This article analyzes the spectrum of the photocurrent in a layered film heterostructure CdTe-ZnSe with deep primesnymi levels. The experimental results demonstrated that the heterostructure CdTe-ZnSe observed a new effect in the measurement of the photoconductivity spectra, depending on the direction of the applied electric field, and the applied field stimulates the emergence of photo-emf. The spectrum of the photocurrent in a layered CdTe- ZnSe heterostructure film with deep impurity levels are considered in the article. It follows from the experimental results that a new effect is observed in the CdTe-ZnSe heterostructure when measuring the photoconductivity spectra depending on the …

Definition Of Extended Structural Defects In Epitaxial Films Of Znteg‘Gaas Grown By Mbe, Muratbay B. Sharibaev, Kanatbay A. Ismailov, Ibrohim N. Karimov, Murodjon Z. Nosirov

Scientific Bulletin. Physical and Mathematical Research

The last three decades of the development of solid state physics are characterized by the fact that the main objects of research are increasingly not massive crystals, but thin films, multilayer thin-film systems, conducting filaments and crystallites of small size. Epitaxial films are grown on a substrate of a single crystal of the same or another material. In the first case, the epitaxial layer with the correct technology becomes a natural extension of the substrate. Epitaxial film can be doped with various impurities. To introduce an alloying admixture into the epitaxial film, three methods are used. According to the first …

Spectral Characteristics Of The Absorption Coefficient And Energy Position Of Defects, Sirojiddin Z. Zaynobidinov, Rustamjon G. Ikramov, Mashhurahon A. Nuriddinova, Khurshid A. Muminov

Scientific Bulletin. Physical and Mathematical Research

In this paper, a theoretical method to study the spectral characteristics of the absorption coefficient, namely the area of ​​defective absorption of amorphous hydrogenated silicon according to the Davis-Mott approximation from the Kubo-Greenwood formula. It is shown that using the experimental spectral characteristic of the defect absorption coefficient, one can determine the energy position of defects in the mobility gap. Optical transitions of electrons, in which electronic states participate in defects, indicate that there are three types of optical transitions of electrons: between defects, between defects and tails of allowed zones, and also between defects and allowed zones. It was …

Sub-Barrier And Above-Barrier Electron Transport Through Multilayer Semiconductors, Vohob R. Rasulov, Rustam Y. Rasulov, Ikbol M. Eshboltaev, Ravshan R. Sultonov

Scientific Bulletin. Physical and Mathematical Research

In the article the transparency coefficients of the semiconductor structure, consisting of alternating asymmetric potential barriers and wells, where the Bastard condition is taken into account, are calculated. It is shown that in the structure there should be an oscillation of the transmission coefficient of electrons depending on their energy, which is due to the interference of the de Broglie waves reaching the barrier and reflected from the potential barrier. The electronic states of a multilayer semiconductor structure consisting of alternating potential wells and barriers are analyzed. It has been shown that both in the above-barrier and in the barrier …

Scientific Foundation Of The Rate Of Falling Of Raw Materials On Walnut Breakage Device, Otabek A. Mirzaev, Xolhuzha A. Sobirov, Nusratillo R. Barakaev

Scientific Bulletin. Physical and Mathematical Research

Today, there are many types of fruits that are separated the kernel from the shell: walnuts, almonds, filberts, chestnuts, pistachios and cashews. Nuts have a high calorific value and a rich nutrient composition. The most critical and delicate operation is shell cracking to extract the fragile whole kernel from the shell. Studies on nut rupturing are particularly focused on the following three aspects: the physical characteristics of nuts, the mechanical properties of nut rupturing, and nut rupturing equipment. Determining the velocity of the nut entered into the apparatus will allow the machine to operate normally, but will also increase its …

Eigenvalue Problems For An Elliptic Equation With Two Singular Coefficients, Asror M. Shokirov

Scientific Bulletin. Physical and Mathematical Research

For the elliptic type of differential equation with two singular coefficients, the quadratic values of the Dirixle and Dirixle-Neumann problems were found in the quarter in that work. The field and boundary conditions for solving these problems are described in the polar coordinate system. The result is a rectangle in the polar coordinate system. Then, we used the method of separating variables in the right rectangle, that is, divided the variables by the equation and divided the problem into two distinct values for ordinary differential equations. The first of the ordinary differential equations is the substitution of , where the …

Studies Of Tribotechnical Properties Of Composite Polymeric Materials Of Machine Designation, Tojiboy O. Almataev, Nozimbek T. Almataev

Scientific Bulletin. Physical and Mathematical Research

In the given work are experimentally investigated tribotechnical properties as intensity of wear process and factor of a friction composite epoxy the polymeric materials processed by ultrasound. Results of influence of a kind and the maintenance loading on tribotechnical properties composite epoxy polymeric materials depending on modes of ultrasonic processing are received. Correlation dependence of intensity of wear process and factor of a friction composite epoxy coverings from modes of ultrasonic processing is established. It is shown in the work that with an increase in the duration of ultrasonic exposure, the wear rate and the friction coefficient of the coatings …

The Task Of Prosecuting Simple Differential Games On The Rectangle, Azizhon O. Zunnunov

Scientific Bulletin. Physical and Mathematical Research

The theory of differential games is developed and resulted from modeling technical problems. Some of the problems in differential games theory can be described as controlling two moving objects, i.e. one of them is the follower that tries to catch the other object, and obviously the other object is the runner. The runner tries to run away from the follower. Most of the practical and theoretical IT problems, planning, technical and other challenges will be derived to the differential games theory for resolution. Thus researching this theory is one of most important topics currently. A lot of researchers contributed enormous …

Structure And Electro Physical Properties Of Solid Solution (Si2)1-X(Cds)X (0 £ X £ 0.01), Xurshidjon M. Madaminov

Scientific Bulletin. Physical and Mathematical Research

This paper shows the possibility of obtaining a single-crystal solid solution for the substitution of p-Si-n-(Si2)1-x (CdS)x (0 £ x £ 0.01) on silicon substrates with a diameter of 20 mm and thickness » 400, with a crystallographic orientation (111) n-types of conductivity with a specific resistance of 1 Ω cm, by the method of liquid phase epitaxy from Sn – Si – CdS solution – melt in a hydrogen atmosphere purified by palladium. Perfect epitaxial layers with mirror surfaces and with the best parameters are grown under the following technological conditions: temperatures start crystallization –1150 ОС, speed of forced …

Modeling It Of Discourse Analysis And The Ussues Machine Translation, Nilufar Z. Abdurakhmonova, Allayorzhon G. Teshabayev

Scientific Bulletin. Physical and Mathematical Research

The aim of the research work is to analyze theories on the formation of linguistic database of the translation program of simple texts from English into Uzbek and to create program foundations. The object of the research work is word combinations and simple sentences of English and Uzbek languages, grammatical expressions as well. Scientific novelty of the research work is as follows: Drawn conclusions provide exactness of translation on creating linguistic database of machine translation. created linguistic database of phrasal verbs, morphological lexicon, affixes of English and Uzbek languages and their morphological and syntactic models; identified coordination of simple sentence …

Description Of 2-Local Two Sided Multiplication On An Algebra Of Matrices, Farhodjon N. Arzikulov, Kamola A. Solijanova

Scientific Bulletin. Physical and Mathematical Research

The present paper is devoted to 2-local derivation on associative and Jordan matrix rings. In 1997, P. Semrl introduced the notion of 2-local derivations and described 2-local derivations on the algebra ¬B(H) of all bounded linear operators on the infinite-dimensional separable Hilbert space H. A similar description for the finite-dimensional case appeared later in 2004. In the paper Y. Lin and T. Wong 2-local derivations have been described on matrix algebras over finite dimensional division rings. In 2012 Sh. Ayupov, K. Kudaybergenov suggested a new technique and have generalized the above mentioned results for abritrary Hilbert spaces. Namely they considered …

Application Of Optoelectron Converters Of Reflective Type For Automation Of Liquid And Gas Version Test Measuring Units, Yuriy G. Shipulin, Otabek T. Almataev

Scientific Bulletin. Physical and Mathematical Research

This work is devoted to the use of reflective optoelectronic converters for the automation of liquid and gas calibration flowmeter installations. Liquid and gas calibration flowmeter devices are widely used for verification and certification of various liquid and gas flowmeters and meters. The analysis of the principles of construction of a reflective optoelectronic converter for calibration devices is carried out and the basic principles of their construction are determined. A functional diagram of an experimental automated programmable calibration test setup of flow meters, liquid meters developed on the basis of ROC is presented. High accuracy requirements are imposed on the …

Domain-Wall Tunneling Electroresistance Effect, M. Li, L. L. Tao, Evgeny Y. Tsymbal

Department of Physics and Astronomy: Faculty Publications

Ferroelectric tunnel junctions (FTJs) utilizing an in-plane head-to-head ferroelectric domain wall (DW) have recently been realized, showing interesting physics and new functionalities. However, the DW state in these junctions was found to be metastable and not reversible after applying an electric field. In this work, we demonstrate that a stable and reversible head-to-head DW state can be achieved in FTJs by proper engineering of polar interfaces. Using density functional theory (DFT) calculations and phenomenological modeling, we explore the DW stability by varying stoichiometry of the La_1−xSr_xO=TiO₂ interfaces in FTJs with La_0.5Sr_{0.5 …}

تحالف العلامة التجارية وعلاقته بأدراك الزبائن العراقيين لمنتجات شركات السيارات دراسة تحليلية لعينة من زبائن شركتي هيونداي وكيا من العراقيين, احمد منخي كشيش

Muthanna Journal of Administrative and Economics Sciences

No abstract provided.

Measurement Of Neutrino And Antineutrino Neutral-Current Quasielasticlike Interactions On Oxygen By Detecting Nuclear Deexcitation Γ Rays, K. Abe, R. Akutsu, A. Ali, C. Alt, C. Andreopoulos, L. Anthony, M. Antonova, S. Aoki, A. Ariga, Y. Ashida, E. T. Atkin, Y. Awataguchi, S. Ban, M. Barbi, G. J. Barker, G. Barr, C. Barry, M. Batkiewicz-Kwasniak, A. Beloshapkin, F. Bench, V. Berardi, S. Berkman, L. Berns, S. Bhadra, S. Bienstock, A. Blondel, S. Bolognesi, B. Bourguille

Faculty Publications

Neutrino- A nd antineutrino-oxygen neutral-current quasielasticlike interactions are measured at Super-Kamiokande using nuclear deexcitation γ rays to identify signal-like interactions in data from a 14.94(16.35)×1020 protons-on-target exposure of the T2K neutrino (antineutrino) beam. The measured flux-averaged cross sections on oxygen nuclei are âσν-NCQEâ

The Leadership Behavior Of The Professors Of Physical Education And Sports Sciences And Their Relation To The Motivation Of Achievement Among Students In The First Stage In Some Faculties Other Than Specialization During The Lesson Of Physical Education, Imad Aziz Nashmi, Aziz Al-Din Turki, Mohammed Raheem Rakan

Modern Sport

The research aims to identify the successful leadership behavior of the professor of physical education and sports sciences as well as the motives for achievement during the course of physical education in non-specialized colleges. The researchers assume that there is a correlation between the positive behavior of leadership and the motivation of mathematical achievement and the existence of a relationship The behavior of the reward of leadership and the motivation of mathematical achievement, and the researchers chose the sample of the research in a deliberate way, which consisted of 270 students and 42 were excluded for not being committed to …

The Impact Of The Use Of Keller's Strategy And Some Teaching Aids To Teach Some Offensive And Defensive Skills With The Sword Weapon For The Junior Class, Salam Jaber Abdullah, Atheer Abbas Mustafa, Jalal Abdul Zahra

Modern Sport

The sport of fencing is one of the important mathematics that contribute to the upgrading of the physical and skill level, the sport of attack and defense between competitors trying to each of them to record touches on the other, as well as a high-level technical performance and precise technique needs to excellent mobility possibilities. Thus, the importance of research is to benefit from the Keller strategy as a means of competition between the players and to increase the motivation of junior players one of the strategies of the separation of education and the learners here individually according to their …

Comparison Of The Preferences Of Reading According To Multiple Intelligences Among Students Of The Faculty Of Physical Education And Sports Sciences And The Faculty Of Education For Pure Sciences At The University Of Diyala, Nebras Kamil Hidayat, Shaimaa Sami Shehab, Huda Naji

Modern Sport

The importance of this study to investigate the student's readings and compare them in a specialty depends on the content of the learner is constantly learners and the specialization of mathematics and another field where students spend most of their time in learning the skills of motor sports is the subject of education and then go beyond the search for the quality of readings that It takes care of practitioners of different intelligences.

The aim of the research is to find out the best details of reading according to the multiple intelligences practiced by the students of the Faculty of …

The Role Of The School Principal In Activating School Sports Activity From The Point Of View Of The Teachers Of Physical Education In The Schools Of Anbar Province, Naseem Abdulilah Abdulaziz, Anas Abdul Sattar Eid

Modern Sport

The study aims to know the role of the school principal in activating school sports activity from the point of view of the teachers of physical education in the schools of Anbar province.The study attempted to answer the following questions:- What is the role of the school principal in activating school sports activity from the point of view of the teachers of physical education in Anbar province2- Does the role of the school principal differ from the point of view of the physical education teachers according to the different qualifications of the academic (Bachelor of Sports Education, Diploma of Community …

An Analytical Study Of The Reality Of School Sports For The Intermediate Stage In Al-Qadisiyah Governorate, Mudar Abdul-Baqi Salem, Bassem Sami Shaheed, Ola Salam

Modern Sport

School sports are the basic structure of the sports movement that we must pay the greatest attention to in order to ensure our sports movement development and spread, and in line with the visions and goals aimed at raising the level of the sports field, and in line with the needs of the era in which we live and its positive and negative effects, especially within the Egyptian society, and with the aim of Activating and developing work mechanisms in the field of school sports activities, which are among the effective means of training and educating young people, as they …