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Feeding Practices and Use of Lysine and Methionine in Pigrationing on Intensified Pig Breeding in the West Center and hauts Bassins Regions of Burkina Faso

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Open Journal of Animal Sciences 2024年第1期14卷 23-38页

作者： Isidor Zangbéwindin Ouedraogo Timbilfou Kiendrebeogo Aboubacar Toguyeni Chantal Yvette Kabore-Zoungrana laboratoire d’Etudes et de Recherches sur les Ressources Naturelles et les Sciences de l’Environnement (LERNSE) Universit&#233 Nazi Boni Bobo-Dioulasso Burkina Faso laboratoire de Recherche et d’Etudes en Production et Santé Animales (LAREPSA) D&#233partement Productions Animales (DPA) l’Institut de l’Environnement et de Recherches Agricoles (INERA) Station de Farako-B&#226 Bobo-Dioulasso Burkina Faso laboratoire Central d’Horticulture (LCH) Station de Recherche de Farako-B&#226 Institut de l’Environnement et de Recherches Agricoles (INERA) Bobo-Dioulasso Burkina Faso Ministère de l’Agriculture des Ressources Animales et Halieutiques (MARAH) Ouagadougou Burkina Faso

The aim of the study was to assess feeding practices and the use of lysine and methionine in pig rationing on intensified and semi-intensive pig breeding in the Koudougou and Bobo-Dioulasso areas. To this end, a cross-sectional survey was carried out on 87 breeding in these towns. A Discriminant Factorial Analysis (DFA) confirming a k-means classification of the data collected was used to retain 71 breeding divided into three breeding classes: Class A (32.4% of breeding), Class B (14.08%) and Class C (53.52%). The results show that the majority of pig breeders were men between the ages of 36 and 59. Average herd sizes were 35 ± 28;79 ± 42 and 89 ± 21 pigs for Classes A, B and C respectively. The main breeds of pig found on the breeding were crossbred, Large white, local, Landrace and Duroc. Class A (26.1%), B (30%) and C (15.8%) breeders were familiar with both lysine and methionine. Class A breeders distributed feed staggered (65.2%) and in rations (34.8%). Lysine (13%) and methionine (8.7%) were purchased at 5250 FCFA/kg. Those in class B distributed feed staggered (50%) and in the form of rations (50%), in which they incorporated lysine (30%) and methionine (30%) purchased at a cost of 2500 FCFA/kg and 3000 FCFA/kg respectively. Rationing and staggered feeding were practiced by 23.7% and 76.3% of Class C breeders respectively. Only lysine purchased at 3400 FCFA/kg was incorporated into rations by 10.5% of breeders. The high cost of lysine and methionine was incriminated by Class A (100%), B (33.3%) and C (50%) breeders. In conclusion, intensive pig breeding, the practice of rationing and the incorporation of the amino acids lysine and methionine are of ascending importance from classes C, A to B. The high cost of feedstuffs, particularly lysine and methionine, compromises their use in rations, which could have a negative impact on expected breeding performance. The screening and use of feeds rich in and/or enriched with these amino acids, through the development

关键词： Feeding Practices Lysine Methionine Intensive Pig Breeding Burkina Faso

PBT/Epoxide-containing rubber polymer blends: Development of performance material through the control of the melt reactivity

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PBT/Epoxide-containing rubber polymer blends: Development of...

Preface for Cyber‑Attack Detection and Resilient Control of Intelligent and Connected Vehicles

工程塑料国际学术研讨会

作者： P.Martin R.Legras M.van Gurp M.van Duin L.Leemans laboratoire des hauts polymeres Universite Catholique de Louvain 1 Place Croix du Sud B- 1348 Louvain-la-Neuve Belgium. DSM Research P.O. Box 18 NL-6160 MD Geleen The Netherlands

Polyesters, like polybutyleneterephthalate (PBT) and polyethyleneterephthalate (PET), exhibit very goodintrinsic properties, such as good thermal resistance, dimensional stability, water absorptio

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Automotive Innovation 2023年第2期6卷 143-145页

作者： Hui Zhang Manjiang Hu Anh‑Tu Nguyen Yunpeng Wang Yang Shi School of Transportation Science and Engineering Beihang UniversityBeijingChina College of Mechanical and Vehicle Engineering Hunan UniversityChangshaChina laboratoire d’Automatique de Mécanique et d’Informatique Industrielles et Humaines UMR CNRS 8201UniversitéPolytechnique des Hauts-de-FranceValenciennesFrance Department of Mechanical Engineering University of VictoriaVictoriaBCCanada

Intelligent and connected vehicles(ICVs),as a critical future product of the automotive industry,have developed rapidly in recent *** insertion of a cyber chain between vehicles can bring considerable benefits,including shared perception information,improved traffic efficiency,enhanced vehicle safety,optimized energy utilization,and reduced carbon emissions.

关键词： insertion Preface benefits

Synthesis and Properties of Polythiophene Benzylidene and Their Photovoltaic Applications

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Materials Sciences and Applications 2011年第8期2卷 1014-1021页

作者： Reguig Bendoukha Abdelkarim Ahmed Yahiaoui Aicha Hachemaoui Mohammed Belbachir Abdelbasset Khelil laboratoire de chimie Organique Macromoleculaire et des Materiaux(LCOMM)Universite de MascaraFaculte des Sciences et de la TechnologieMascaraAlgerie laboratoire de Chimie des polymeres Universite d’OranOranAlgerie LPCM2E Universited’Oran Es-SeniaAlgerie

Research on organic solar cells has a craze importance because they show very interesting properties including their flexibility and the opportunity to be made into large surfaces. However, their stability and performance should be significantly improved compared to their current state. A nominal output of around 10% will be the goal for the coming years. The use of organic materials for photovoltaic applications is the subject of intense research in recent years. This work is based in part on the development of new conjugated polymers. In this paper, we present the synthesis and characterization of poly [(thiophene-2,5-diyl)-co-(benzylidene)] PTB catalysed by Maghnite-H+, used in the active layer of the solar cell organic heterojunction with PCBM (derivative of C60) was used as a junction of the solar cell: Glas/ITO/BCP/C60/PTB/Au/Al. A current density of short circuit of about Jcc 0.1mA/cm2 was obtained for this structure with a yield of around 0.15%.

关键词： Polymerization Conjugated Polymers UV-Vis Spectroscopy IR Spectroscopy Yield Calculation Solar Cell Organic Heterojunction

Moisture-Induced Non-Equilibrium Phase Segregation in Triple Cation Mixed Halide Perovskite Monitored by In Situ Characterization Techniques and Solid-State NMR

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Energy & Environmental Materials 2023年第2期6卷 185-194页

作者： Mohammad Ali Akhavan Kazemi Nicolas Folastre Parth Raval Michel Sliwa Jean Marie Vianney Nsanzimana Sema Golonu Arnaud Demortiere Jean Rousset Olivier Lafon Laurent Delevoye G.N.Manjunatha Reddy Frédéric Sauvage laboratoire de Réactivité et Chimie des Solides(LRCS) UMR CNRS 7314-Institut de Chimie de Picardie FR 3085Université de Picardie Jules Verne33 rue Saint LeuAmiens Cedex FR-80039France CNRS Centrale LilleUMR 8181UCCSUnitéde Catalyse et Chimie du SolideUniversité de LilleUniversitéd’ArtoisLille F-59000France UMR 8516-LASIRE-laboratoire de Spectroscopie pour les Interactions la Réactivité et l’EnvironnementCNRSUniversitéde LilleLille F-59000France EDF R&D EDF LabBoulevard Gaspard MongePalaiseau 91120France

Environmental stability is a major bottleneck of perovskite solar *** a handful of studies are investigating the effect of moisture on the structural degradation of the *** mostly rely on ex situ experiments and on completely degraded samples,which restrict the assessment on initial and final *** combining in situ X-ray diffraction under controlled 85%relative humidity,and live observations of the water-induced degradation using liquid-cell transmission electron microscopy,we reveal two competitive degradation paths leading on one hand to the decomposition of state-of-theart mixed cation/anion(Cs_(0.05)(MA_(0.17)FA_(0.83))_(0.95)Pb(Br_(0.17)I_(0.83))_(3)(CsMAFA)into PbI_(2) through a dissolution/recrystallization mechanism and,on the other hand,to a non-equilibrium phase segregation leading to CsPb_(2)Br_(5) and a Cesium-poor/iodide-rich Cs_(0.05)-x(MA_(0.17)FA_(0.83))_(0.95)Pb(Br_(0.17-2y)I_(0.83)+2y)_(3) *** degradation mechanism is corroborated at atomic-scale resolution through solid-state ^(1)H and ^(133)Cs NMR *** to moisture leads to a film containing important heterogeneities in terms of morphology,photoluminescence intensities,and *** results provide new insights and consensus that complex perovskite compositions,though very performant as champion devices,are comparatively metastable,a trait that limits the chances to achieve long-term stability.

关键词： liquid-cell transmission electron microscopy moisture degradation perovskite stability phase segregation solid-state NMR

GeTeSb Physical Properties Investigation

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材料科学与工程（中英文B版） 2012年第10期2卷 534-538页

作者： Abelhamid Badaoui Maamar Belhadji Mohamed Belbachir Noureddine Hakiki laboratoire de Chimie des polymeres LCP Es-Senia University Oran 31000 Algeria Physics Department Es-Senia University Oran31000 Algeria

Physical properties, such as coordination number, number of constraints, lone pair electrons, heat of atomization and mean bond energy of Te based chalcogenide (GeTeSb) system are studied for different Te contents, each one with different compositions. We found that all the properties decrease with increasing Sb contents, while the number of the lone pair electrons increases with Sb addition. The glass transition temperature Tg is then deduced with a proper proportionality with the mean bond energy.

关键词：物理特性玻璃化转变温度孤对电子平均键能物理性质硫属化物配位数组合物

Zinc-mediated reactions on salicylaldehyde for Botrytis cinerea control

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Chinese Chemical Letters 2020年第3期31卷 706-710页

作者： Antoine Franche Claire Imbs Antoine Fayeulle Franck Merlier Muriel Billamboz Estelle Léonard Sorbonne University Universitéde technologie de CompiègneESCOMEA TIMR 4297Centre de recherche de RoyallieuCS 6031960203 Compiègne cedexFrance ESCOM UTCEA TIMR 42971 allée du Réseau Jean-Marie Buckmaster60200 CompiègneFrance Sorbonne Universités Universitéde Technologie de CompiègneGénie Enzymatique et Cellulaire(GEC)UMR-CNRS 7025CS 6031960203 Compiègne CedexFrance laboratoire de chimie durable et santé Yncrea Hauts-de-FranceHEI13 rue de Toul59046 Lille CedexFrance

Botrytis cinerea is a necrotrophic fungusth at a ffects various plant *** control is an ecessity and as much as possible,eco-friendly conditions and bioresources to obtain these chemicals should be *** this context,a series of products w as obtained from salicylaldehyde using zinc as a powerful reagent and tested for antifungal activity against Botrytis cinerea.

关键词： Salicylaldehyde Zinc-mediated reactions Green solvents Alkoxymethylphenol PEG-cresol Botrytis cinerea control

Prevalence and Spatial Distribution of Badnavirus in the Banana (Musa spp) Major Growing Areas in Burkina Faso

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American Journal of Plant Sciences 2023年第4期14卷 427-447页

作者： Bakary Ouattara Drissa Sérémé Moustapha Koala Léon Wêndé-m’minèré Nitiéma Kadidia Koïta Emmanuel Kaboré Issa Wonni laboratoire de Protection et Défense des Cultures Institut de l’Environnement et de Recherches Agricoles Centre National de Recherche Scientifique et Technologique Ouagadougou Burkina Faso laboratoire de Biosciences Département de Biologie et Physiologie Végétale Université Joseph KI-ZERBO Ouagadougou Burkina Faso laboratoire Central d’horticulture Institut de l’Environnement et de Recherches Agricoles Centre National de Recherche Scientifique et Technologique Bobo Dioulasso Burkina Faso

Banana streak virus (BSV) and Sugarcane bacilliform virus (SCBV) are two badnaviruses commonly found in all banana growing areas of the world. It is a threat to the production and improvement of Musa germplasm. In Burkina Faso, the presence of badnaviruses was reported in banana producing regions. The objective of this study was to determine the prevalence of BSV and SCBV in banana production areas of Burkina Faso. A survey followed by a symptomatologic study was conducted in banana plantations in 27 localities of the nine main banana producing regions from July to October 2018 and September to December 2020. In all, 251 leaf samples were collected and analysed for BSV and SCBV infection by Indirect Antigen Coated Plate Assay-ELISA followed by amplification of the RT/RNase H region using Polymerase chain reaction with Badna FP/RP and SCBV F/R primers, respectively. A variety of symptoms were observed on almost all plant organs which were revealed due to BSV by symptomatologic study. The results of serological and molecular diagnosis revealed a high overall prevalence of BSV in 80.48% of the samples tested. BSV was distributed in seven survey regions out of nine with prevalence ranging from 10% to 100% in North, Centre, Centre West, hauts Bassins, Cascades, Centre East and Boucle of Mouhoun regions. Very low prevalence was recorded for SCBV in Cascades and East Centre region with 4.35 and 12.5%, respectively. Species detection using specific primers to each species revealed three main species: Banana streak Obino l’ewaï virus (BSOLV), Goldfinger virus (BSGFV) and Imové virus (BSIMV) in the samples tested, respectively in the proportions of 23%, 8% and 0.8%. Co-infection between BSV species was also detected.

关键词： Banana Streak Virus Sugarcane Bacilliform Virus Indirect Antigen Coated Plate Assay Polymerase Chain Reaction Musa spp

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控制溶剂挥发速率方法制备聚辛基噻吩单晶

控制溶剂挥发速率方法制备聚辛基噻吩单晶