Alimentos alternativos utilizados para codornas de corte: revisão

In coturniculture nutrition is the factor that most burdens production costs, thus studies with the use of foods alternative to corn and soybean meal, has grown considerably throughout Brazil, due to the great potential of agroindustry production of parents who generates numerous co-products or by-products that have sufficient nutritional quality to be placed in the rations without interfering with the performance or quality of the final product, making it possible to reduce the polluting potential of these co-products when discarded inappropriately. In this context, the aim of this review is to address some alternative foods that are used in the feeding of cutting quails, as well as their effects on zootechnical performance in the different stages of breeding of these birds and also their effects on the quality of the final product. To perform this review, an analysis of scientific studies that used alternative foods in diets of quail was made, showing their effects. It can be concluded that various alternative foods such as acerola residue, licuri bagasse, guava meal, crambe meal, passion fruit residue, cashew nut meal, soybean husk and fodder palm meal can be used to feed meat-type quails, assisting in the reduction of diet costs without influence on the zootechnical characteristics.En coturnicultura  la nutrición es el factor que más carga los costos de la producción, de esta manera, los estudios con  el uso de alimentos alternativos al maíz y salvado de soja, ha crecido considerablemente en todo Brasil, debido al gran potencial de producción agroindustrial del país que genera numerosos coproductos o subproductos que tienen suficiente calidad nutricional para ser colocados en las raciones sin interferir en el rendimiento o la calidad producto, lo que permite reducir el potencial contaminante de estos coproductos cuando se desechan incorrectamente.  En este contexto, el objetivo es abordar algunos alimentos alternativos que se utilizan en la alimentación de codornices de corte, así como sus efectos en  el rendimiento zootécnico en las diferentes etapas de la cría de estas aves y también sus efectos en la calidad del producto final. Para realizar esta revisión, se realizó un análisis de estudios científicos que utilizaron alimentos alternativos en las dietas de codorniz, mostrando sus efectos. Se puede concluir que varios alimentos alternativos como los residuos de acerola, el bagazo de licuri, la harina de guayaba, la harina de crambe, los residuos de maracuyá, la harina de anacardos, la cáscara de soja y la harina de palma forrajera pueden usarse para alimentar codornices de engorda, ayudando a reducir los costos de la dieta sin influencia en las características zootécnicas.Na coturnicultura a nutrição é o fator que mais onera os custos de produção, deste modo, estudos com a utilização alimentos alternativos ao milho e farelo de soja, tem crescido consideravelmente em todo o Brasil, devido ao grande potencial de produção agroindustrial do pais que gera inúmeros coprodutos ou subprodutos que possuem qualidade nutricional suficiente para serem colocados nas rações sem interferir no desempenho ou na qualidade do produto final, possibilitando reduzir o potencial poluidor destes coprodutos quando descartados de forma inadequada. Neste contexto, objetiva-se com está revisão abordar alguns alimentos alternativos que são utilizados na alimentação de codornas de corte, assim como seus efeitos sobre o desempenho nas diferentes fases de criação destas aves e também seus efeitos sobre a qualidade do produto final. Para a realizar esta revisão foi feita análise de trabalhos científicos que utilizaram alimentos alternativos em rações de codornas de corte, evidenciando os seus efeitos. Podendo concluir que diversos alimentos alternativos como resíduo de acerola, bagaço de licuri, farelo de goiaba, farelo de crambe, resíduo do maracujá, farelo da castanha do caju, casca de soja e o farelo da palma forrageira podem ser utilizados na alimentação de codornas de corte, auxiliando na redução dos custos da dieta sem influência sobre as características zootécnicas

Aditivos fitogênicos: óleos essenciais para frangos de corte - revisão

Phytogenic additives have been shown to act as a substitute for antibiotics because of their functionality in breaking up bacterial membranes, being effective in combating microorganisms and acting as antioxidants. Used in a strategic way, in promoting action, it will mainly favor the intestinal condition, increasing the zootechnical gains and increasing the prevention of pathologies associated with bacteria or fungi. Therefore, the aim of this review was to seek scientific information on what are the phytogenic additives, their compositions and mode of action and the applicability with the results obtained through their use in broiler feed. For this review an analysis was made of scientific studies that studied which are the main additives and their active principles, as well as their mode of action of essential oils and which plants have potential to be used as phytogenic additives, evidencing their effects on food. of broiler chickens. It is concluded that the use of phytogenic actives in the form of essential oils can be used in chicken feed, providing improvements in the intestinal health of birds and consequently improvement in their productive performance. Even if its positive points are shown, some conditions still need to be elucidated, such as dose / action relationship and association of the various active principles belonging to the phytogenic additives, which may provide several new studies.Incluir o resumo em espanhol. Se ha demostrado que los aditivos fitogénicos actúan como un sustituto de los antibióticos debido a su funcionalidad para romper las membranas bacterianas, siendo efectivos en la lucha contra los microorganismos y actuando como antioxidantes. Utilizado de manera estratégica, en la promoción de la acción, favorecerá principalmente la condición intestinal, aumentando las ganancias zootécnicas y aumentando la prevención de patologías asociadas con bacterias u hongos. Por lo tanto, nos propusimos opinión es la búsqueda de información científica sobre lo que los aditivos fitogénicos, su composición y modo de acción y la aplicabilidad de los resultados obtenidos por su uso en los cortes de energía de pollo. Para esta revisión, se realizó un análisis de estudios científicos que estudiaron cuáles son los principales aditivos y sus principios activos, así como su modo de acción de los aceites esenciales y qué plantas tienen el potencial de ser utilizados como aditivos fitogénicos, lo que evidencia sus efectos en los alimentos. de pollos de engorde. Se concluye que el uso de los activos fitogénicos en forma de aceites esenciales puede ser utilizado en la alimentación de pollos, que proporciona mejoras en la salud intestinal de las aves y, por consiguiente, mejora en su rendimiento productivo. Incluso se demostraron, sus puntos buenos, algunas condiciones todavía necesitan ser aclarado, como la dosis / acción y asociación de los diversos ingredientes activos que pertenecen a los aditivos fitogénicos, que pueden proporcionar varios estudios nuevos.Os aditivos fitogênicos, demostram condição científica para agir como substituto aos antibióticos, pela sua funcionalidade em romper membranas bacterianas sendo efetivo ao combate contra os microrganismos, além de atuarem como antioxidantes. Utilizado de uma forma estratégica, em ação promotora, favorecerá principalmente a condição intestinal, elevando os ganhos zootécnicos e incrementando a prevenção de patologias, associadas a bactérias ou fungos. Portanto, objetivou-se com está revisão buscar informações cientificas, sobre quais são os aditivos fitogênicos, suas composições e modo de ação e as aplicabilidades com os resultados obtidos através do seu uso na alimentação de frangos de cortes. Para a realização desta revisão foi feita análise de trabalhos científicos que estudaram quais são os principais aditivos e seus princípios ativos, assim como seu modo de ação dos óleos essenciais e quais plantas possuem potencial para serem utilizados como aditivos fitogênicos , evidenciando os seus efeitos na alimentação de frangos de corte. Conclui-se que a utilização de ativos fitogênicos na forma de óleos essenciais pode ser utilizados nas rações de frangos, proporcionando melhorias na saúde intestinal das aves e consequentemente melhoria em seu desempenho produtivo. Mesmo sendo demostrado, seus pontos positivos, algumas condições ainda necessitam de ser elucidadas, como relação dose/ação e associação dos vários princípios ativos pertencentes aos aditivos fitogênicos, o que poderá proporcionar diversos novos estudos

Measurement of the cross-section and charge asymmetry of WW bosons produced in proton-proton collisions at s=8\sqrt{s}=8 TeV with the ATLAS detector

This paper presents measurements of the $W^+ \rightarrow \mu^+\nu$ and $W^- \rightarrow \mu^-\nu$ cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS experiment at the LHC and correspond to a total integrated luminosity of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the 1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured with an uncertainty between 0.002 and 0.003. The results are compared with predictions based on next-to-next-to-leading-order calculations with various parton distribution functions and have the sensitivity to discriminate between them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13

Combined measurement of differential and total cross sections in the H → γγ and the H → ZZ* → 4ℓ decay channels at s=13 TeV with the ATLAS detector

A combined measurement of differential and inclusive total cross sections of Higgs boson production is performed using 36.1 fb−1 of 13 TeV proton–proton collision data produced by the LHC and recorded by the ATLAS detector in 2015 and 2016. Cross sections are obtained from measured H→γγ and H→ZZ*(→4ℓ event yields, which are combined taking into account detector efficiencies, resolution, acceptances and branching fractions. The total Higgs boson production cross section is measured to be 57.0−5.9 +6.0 (stat.) −3.3 +4.0 (syst.) pb, in agreement with the Standard Model prediction. Differential cross-section measurements are presented for the Higgs boson transverse momentum distribution, Higgs boson rapidity, number of jets produced together with the Higgs boson, and the transverse momentum of the leading jet. The results from the two decay channels are found to be compatible, and their combination agrees with the Standard Model predictions

Measurement of jet fragmentation in Pb+Pb and pp collisions at √s NN =5.02 TeV with the ATLAS detector

This paper presents a measurement of jet fragmentation functions in 0.49 nb −1 of Pb+Pb collisions and 25 pb −1 of pp collisions at √ sNN =5.02 TeV collected in 2015 with the ATLAS detector at the LHC. These measurements provide insight into the jet quenching process in the quark-gluon plasma created in the aftermath of ultra-relativistic collisions between two nuclei. The modifications to the jet fragmentation functions are quantified by dividing the measurements in Pb+Pb collisions by baseline measurements in pp collisions. This ratio is studied as a function of the transverse momentum of the jet, the jet rapidity, and the centrality of the collision. In both collision systems, the jet fragmentation functions are measured for jets with transverse momentum between 126 GeV and 398 GeV and with an absolute value of jet rapidity less than 2.1. An enhancement of particles carrying a small fraction of the jet momentum is observed, which increases with centrality and with increasing jet transverse momentum. Yields of particles carrying a very large fraction of the jet momentum are also observed to be enhanced. Between these two enhancements of the fragmentation functions a suppression of particles carrying an intermediate fraction of the jet momentum is observed in Pb+Pb collisions. A small dependence of the modifications on jet rapidity is observed

Search for Higgs bosons produced via vector-boson fusion and decaying into bottom quark pairs in √s =13 TeV pp collisions with the ATLAS detector

A search for the bb ¯ decay of the Standard Model Higgs boson produced through vector-boson fusion is presented. Three mutually exclusive channels are considered: two all-hadronic channels and a photon-associated channel. Results are reported from the analysis of up to 30.6 fb −1 of pp data at s √ =13 TeV collected with the ATLAS detector at the LHC. The measured signal strength relative to the Standard Model prediction from the combined analysis is 2.5 +1.4 −1.3 for inclusive Higgs boson production and 3.0 +1.7 −1.6 for vector-boson fusion production only

Operation and performance of the ATLAS Tile Calorimeter in Run 1

The Tile Calorimeter is the hadron calorimeter covering the central region of the ATLAS experiment at the Large Hadron Collider. Approximately 10,000 photomultipliers collect light from scintillating tiles acting as the active material sandwiched between slabs of steel absorber. This paper gives an overview of the calorimeter’s performance during the years 2008–2012 using cosmic-ray muon events and proton–proton collision data at centre-of-mass energies of 7 and 8TeV with a total integrated luminosity of nearly 30 fb−1. The signal reconstruction methods, calibration systems as well as the detector operation status are presented. The energy and time calibration methods performed excellently, resulting in good stability of the calorimeter response under varying conditions during the LHC Run 1. Finally, the Tile Calorimeter response to isolated muons and hadrons as well as to jets from proton–proton collisions is presented. The results demonstrate excellent performance in accord with specifications mentioned in the Technical Design Report

Search for pair production of heavy vector-like quarks decaying into high-pT W bosons and top quarks in the lepton-plus-jets final state in pp collisions at √s = 13 TeV with the ATLAS detector

A search is presented for the pair production of heavy vector-like B quarks, primarily targeting B quark decays into a W boson and a top quark. The search is based on 36.1 fb −1 of pp collisions at √s = 13 TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Data are analysed in the lepton-plus-jets final state, characterised by a high-transverse-momentum isolated electron or muon, large missing transverse momentum, and multiple jets, of which at least one is b -tagged. No significant deviation from the Standard Model expectation is observed. The 95% confidence level lower limit on the B mass is 1350 GeV assuming a 100% branching ratio to Wt. In the SU(2) singlet scenario, the lower mass limit is 1170 GeV. This search is also sensitive to a heavy vector-like B quark decaying into other final states (Zb and Hb ) and thus mass limits on B production are set as a function of the decay branching ratios. The 100% branching ratio limits are found to be also applicable to heavy vector-like X production, with charge +5/3, that decay into Wt

Study of the hard double-parton scattering contribution to inclusive four-lepton production in pp collisions at √s=8 TeV with the ATLAS detector

The inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2fb−1of data recorded in the ATLAS detector at the LHC at centre-of-mass energy √s=8TeV. In the four-lepton invariant-mass range of 80 <m4<1000GeV, an artificial neural network is used to enhance the separation between single-and double-parton scattering based on the kinematics of the four leptons in the final state. An upper limit on the fraction of events originating from double-parton scattering is determined at 95% confidence level to be fDPS=0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0mb

Electron and photon energy calibration with the ATLAS detector using 2015–2016 LHC proton-proton collision data

This paper presents the electron and photon energy calibration obtained with the ATLAS detector using about 36 fb−1 of LHC proton-proton collision data recorded at √s = 13 TeV in 2015 and 2016. The different calibration steps applied to the data and the optimization of the reconstruction of electron and photon energies are discussed. The absolute energy scale is set using a large sample of Z boson decays into electron-positron pairs. The systematic uncertainty in the energy scale calibration varies between 0.03% to 0.2% in most of the detector acceptance for electrons with transverse momentum close to 45 GeV. For electrons with transverse momentum of 10 GeV the typical uncertainty is 0.3% to 0.8% and it varies between 0.25% and 1% for photons with transverse momentum around 60 GeV. Validations of the energy calibration with J/ψ → e + e − decays and radiative Z boson decays are also presented