Assessment of long-range correlation in animal behaviour time series: the temporal pattern of locomotor activity of Japanese quail (Coturnix coturnix) and mosquito larva (Culex quinquefasciatus)

The aim of this study was to evaluate the performance of a classical method of fractal analysis, Detrended Fluctuation Analysis (DFA), in the analysis of the dynamics of animal behavior time series. In order to correctly use DFA to assess the presence of long-range correlation, previous authors using statistical model systems have stated that different aspects should be taken into account such as: 1) the establishment by hypothesis testing of the absence of short term correlation, 2) an accurate estimation of a straight line in the log-log plot of the fluctuation function, 3) the elimination of artificial crossovers in the fluctuation function, and 4) the length of the time series. Taking into consideration these factors, herein we evaluated the presence of long-range correlation in the temporal pattern of locomotor activity of Japanese quail ({\sl Coturnix coturnix}) and mosquito larva ({\sl Culex quinquefasciatus}). In our study, modeling the data with the general ARFIMA model, we rejected the hypothesis of short range correlations (d=0) in all cases. We also observed that DFA was able to distinguish between the artificial crossover observed in the temporal pattern of locomotion of Japanese quail, and the crossovers in the correlation behavior observed in mosquito larvae locomotion. Although the test duration can slightly influence the parameter estimation, no qualitative differences were observed between different test durations

Information Sharing in Multi-Tier Supply Chains - Moving Beyond the Dyads

As international competition increased towards the end of last century, companies realized the importance of collaborating and sharing information with suppliers and customers to remain competitive. By sharing information such as forecasts of future demand with partners in the supply chain, it was possible to lower inventory holding costs and increase the service level to customers, and thereby increase the competitiveness of the involved companies. Previous research has proposed several benefits related to information sharing in supply chains. Suggested benefits include, for instance, better planning and scheduling of production lines, improved allocation and utilization of resources for transportation and warehousing, and reduced inventory levels and tied-up capital. However, it appears that few companies have been able to implement and benefit from information sharing. Several researchers conclude that information sharing in the supply chain is limited. Particularly, it seems as if companies have not been able to benefit from sharing information across multiple tiers in the supply chain. The lack of information sharing across multiple tiers is a challenge which is important to address considering that companies continue to struggle with problems related to the, so called, bullwhip effect. A supply chain which suffers from the bullwhip effect can experience distorted demand information as it is shared upstream in the chain. Such variations in demand information can lead to incorrect production planning and thereby alternately high inventory levels and increased costs for overtime and rush orders. Against this background, several questions arise: For what reasons do companies refrain from sharing information across multiple tiers despite the fact that literature suggest that it is beneficial? Further, are there any companies that have implemented information sharing across multiple tiers and, if so, what are the documented benefits? Searching the answers to these questions reveals a gap in literature in that the majority of previous research studies have focused on dyadic relationship (i.e. supplier-buyer) instead of multi-tier supply chains (e.g. supplier-manufacturer-customer). The purpose with this dissertation is therefore to move beyond the dyads and explore information sharing in the supply chain, and investigate opportunities and challenges involved with sharing information across multiple tiers. The purpose is addressed in three separate but connected studies. Following a pilot study, a systematic literature review is conducted to establish current knowledge in the research area. Thereafter, two empirical studies are conducted: a case study which maps an entire supply chain where data is collected from multiple tiers; and a Delphi study including a panel of experts who share their insights through multiple questionnaires. The findings indicate that companies, for different reasons, refrain from sharing information across multiple supply chain tiers. One reason is the many challenges involved with implementing information sharing across multiple supply chain tiers. The major challenges include lack of trust between companies; lack of information quality; difficulties to share risks and benefits; lack of business processes; and the lack of a dominant player who can initiate change in the supply chain. Many companies are also preoccupied with internal issues and lack the ability to engage in information sharing across the supply chain. Another reason, from the perspective of contingency theory, seems to be that information sharing across multiple tiers is only beneficial in few, particular contexts. Such contexts relate to planned changes in the supply chain, for example in relation to new product introductions when future demand is uncertain. Findings also suggest a negative inter-relation between important and feasible contexts. In other words, in cases where it is possible to implement information sharing it is perceived to be less valuable and in cases where it is more valuable it is more difficult to implement. The findings further suggest that companies focus their information sharing with supply chain partners that represent high intensity of interdependence. Interdependence theory can thus help to explain why companies mostly share information with dyadic, strategic partners where the partners represent a large percentage of each other’s portfolio and turnover. Moving beyond the dyads, the intensity of interdependence is reduced as firms are embedded in many networks and often have multiple suppliers and customers. The willingness to engage in multi-tier information sharing is therefore reduced. This dissertation, which is one of the first to study information sharing in the extended supply chain, indicates that information sharing across multiple tiers is a rare phenomenon in industry. The dissertation also points out that several aspects must be considered to be able to implement and benefit from information sharing across multiple tiers. One of the contributions of the dissertation is a conceptual framework which can be used to guide future research and also function as decision support for companies to address and implement multi-tier information sharing

Complex oscillatory redox dynamics with signaling potential at the edge between normal and pathological mitochondrial function

Fil: Kembro, Jackelyn. Universidad Nacional de Córdoba. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Kembro, Jackelyn. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Química. Cátedra de Química Biológica; Argentina.The time-keeping properties bestowed by oscillatory behavior on functional rhythms represent an evolutionarily conserved trait in living systems. Mitochondrial networks function as timekeepers maximizing energetic output while tuning reactive oxygen species [ROS] within physiological levels compatible with signaling. In this work, we explore the potential for timekeeping functions dependent on mitochondrial dynamics with the validated two-compartment mitochondrial energetic-redox (ME-R) computational model, that takes into account (a) four main redox couples (NADH, NADPH, GSH, Trx(SH)2), (b) scavenging systems (glutathione, thioredoxin, SOD, catalase) distributed in matrix and extra-matrix compartments, and (c) transport of ROS species between them.Fil: Kembro, Jackelyn. Universidad Nacional de Córdoba. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Kembro, Jackelyn. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Química. Cátedra de Química Biológica; Argentina.Biofísic

Complex oscillatory redox dynamics with signaling potential at the edge between normal and pathological mitochondrial function

The time-keeping properties bestowed by oscillatory behavior on functional rhythms represent an evolutionarily conserved trait in living systems. Mitochondrial networks function as timekeepers maximizing energetic output while tuning reactive oxygen species (ROS) within physiological levels compatible with signaling. In this work, we explore the potential for timekeeping functions dependent on mitochondrial dynamics with the validated two-compartment mitochondrial energetic-redox (ME-R) computational model, that takes into account (a) four main redox couples [NADH, NADPH, GSH, Trx(SH)2], (b) scavenging systems (glutathione, thioredoxin, SOD, catalase) distributed in matrix and extra-matrix compartments, and (c) transport of ROS species between them. Herein, we describe that the ME-R model can exhibit highly complex oscillatory dynamics in energetic/redox variables and ROS species, consisting of at least five frequencies with modulated amplitudes and period according to power spectral analysis. By stability analysis we describe that the extent of steady state—as against complex oscillatory behavior—was dependent upon the abundance of Mn and Cu, Zn SODs, and their interplay with ROS production in the respiratory chain. Large parametric regions corresponding to oscillatory dynamics of increasingly complex waveforms were obtained at low Cu, Zn SOD concentration as a function of Mn SOD. This oscillatory domain was greatly reduced at higher levels of Cu, Zn SOD. Interestingly, the realm of complex oscillations was located at the edge between normal and pathological mitochondrial energetic behavior, and was characterized by oxidative stress. We conclude that complex oscillatory dynamics could represent a frequency- and amplitude-modulated H2O2 signaling mechanism that arises under intense oxidative stress. By modulating SOD, cells could have evolved an adaptive compromise between relative constancy and the flexibility required under stressful redox/energetic conditions.Fil: Kembro, Jackelyn Melissa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Cortassa, Sonia del Carmen. University Johns Hopkins; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Aon, Miguel A.. University Johns Hopkins; Estados Unido

Accelerometers as a tool to characterize reproductive behavior within social groups in long term experiments: The case of the Japanese Quail

Accelerometers are devices that convert movement into three signals belonging to each component of the acceleration vector at a high acquisition rate, up to 25 data per second. When they are fixed to an animal, each action performed by the individual leads to a particular shape in these signals that, when depicted in a computer, can be isolated and classified. Hence, accelerometer recordings can be combined with machine learning techniques in order to automatically classify signals into behavioral categories. This is particularly useful in the context of long-term social behavior studies in large or natural environments were recording from visual observation is difficult and time consuming. Herein, we placed accelerometers on the back of adult male quails (Coturnix japonica) to register their activity when they are released into a home box containing two female quails during a 1-hour period. At the same time, the experiment was video-recorded to obtain a time series of the different behaviors performed by the male and their corresponding duration by direct inspection. The accelerometric signals and behavioral time series obtained were used to train a neuronal network. Our neuronal network was able to classify reproductive behavior of males at high temporal resolution. In particular, we showed, first, that the duration of some reproductive events can be much shorter than those reported previously and transitions between different behaviors are very fast (of the order of ~100ms). Second, reproductive behavior appears to begins earlier and finish later than it is possible to observe visually using video recordings. Our results show that combining accelerometer recordings with neural network processing is a powerful method to automatically register reproductive behaviors within social groups with high accuracy. This is of particular importance given that it has the potential to replace registering from visual observation of social behavior. Moreover, the long, high resolution reproductive time series obtained by this approach can be useful for studding long-term reproductive behavioral rhythms in poultry.Fil: Kembro, Jackelyn Melissa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaSMB 2020 Annual MeetingEstados UnidosSociety for Mathematical Biolog

Japanese quail classified by their permanence in proximity to a high or low density of conspecifics: a search for underpinning variables

Test of sociality in poultry is mainly based on the bird's individual ability to make quick social discriminations. In recent years, a density-related permanence (DRP) test has been developed that enables us to classify young birds (while in groups) according to their individual permanence in proximity to either a high or low density of conspecifics (HD or LD, respectively). Thus, the result of the classification depends not only on the bird's individual response but also on the outcome of the social interactions within the whole group. The birds' performance in DRP was associated with underlying differences in social responses of their individuals. Quails in homogeneous groups of LD residents responded with less compact groups and higher levels of agonistic interactions to the presence of an intruder and showed higher levels of agonistic interactions among cage-mates than the homogeneous groups of HD birds. An acute stressor also induced a higher corticosterone response in the LD birds than in their HD counterparts. The present study addressed the question of whether contrasting DRP performance by Japanese quail can also reflect underlying differences in fearfulness and social reinstatement responses. Thus, LD and HD categorized juvenile birds underwent one of the following tests: tonic immobility (TI), open-field (OF), or a one-way runway. Results showed that HD birds required more inductions and developed shorter responses (P ≤ 0.05) in the TI test and walked more, faster, and greater distances in the OF (P ≤ 0.05) than their LD counterparts. No differences between groups were found in short social reinstatement responses. The present findings suggest that underlying fearfulness is lower in the HD than in the LD birds. A reduced fearfulness could be regarded as an additional favorable trait of the HD-classified quail to cope with environmental challenging situations.Fil: Guzmán, Diego Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; ArgentinaFil: Kembro, Jackelyn Melissa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; ArgentinaFil: Marin, Raul Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; Argentin

Den Svenska Handelslogistik-Panelen: Beslutsfaktorer och effekter för lagerautomation

Den andra enkäten i den Svenska Handelslogistik-panelen understryker lagrets strategiska betydelse för att möta förväntningar från kunder, och visar på flera intressanta trender för utveckling och automatisering av handelns logistiknätverk och lager. Vi undersökte vilka strategiska logistikutmaningar som är viktigast för lagret i dagsläget och fem år framåt. Bland de som rankar högst och/eller ökar mest fem år framåt ingår:- Hastighet och ledtidskrav: att vara ledande i kundledtider och därför ha kortast tider i lagerhantering; - Skalekonomi: att utnyttja stordriftsfördelar i lagerlogistiken;- Marknads- och efterfrågedynamik: att hantera förändringar och svängningar i lagrets kapacitetsbehov;- Tillväxt och skalbarhet: att ha lagerlösningar som kan stödja kraftig expansion av försäljning- Miljöfrågor: energi, återvinning och utsläpp kopplat till materialhanteringen i lagret;- Sociala hållbarhetsfrågor: att attrahera rätt kompetenser och skapa god arbetsmiljöVi konstaterar att dagens fokus på tillväxt och skalbarhet passeras av hastighet, skalekonomi och efterfrågedynamik. Samtidigt noterar vi att miljö och social hållbarhet ökar i betydelse medan traditionella lagerutmaningar såsom kostnadsfokus, lagerutrymme och kapitalbindning rankas lägre av panelen.I takt med kontinuerlig föränderlighet och efterfrågesvängningar ökar fokus på investeringar i flexibla kapaciteter, resurser och system i lager eller i överkapacitet. Samtidigt ökar decentralisering av logistiknätverk (fler och olika typer av materialhanterings-noder). Decentralisering – som möjliggör kortare ledtid till slutkund – representeras dels av ökat antal småskaliga lager såsom online fulfilment center (OFC) och micro fulfilment center (MFC) dels av ökade logistiktjänster som erbjuds i butik (antalet butiker är relativt konstant):- Vi har haft en tendens att orderplock i butik ökar. Vi ser i huvudsak två renodlade alternativ för handelsföretag med butiksplock: att alla butiker används för plock eller att handelskedjorna har ett fåtal (under 20%) av butikerna där man koncentrerar sin butiksplockning.- Vidare lämnar majoriteten ut online-order i butik. Likt orderplock ser vi två huvudsakliga alternativ: handelsföretag med utlämning i enstaka, utvalda butiker; och handelsföretag som i princip låter alla sina butiker lämna ut online-order.- Vi noterar också ett delvis nytt fenomen, så kallad ship-from-store, där butiken används som startpunkt för hemleverans; en viss ökning sker de närmaste fem åren där 20% av handelsföretagen satsar i stor utsträckning. Framför allt är det många (förutom rena e-handlare) som inte säger uttalat nej och många som ”inte vet”.- Automationsteknologi i butik och småskaliga lager hittills fått begränsad uppmärksamhet. Fem år framåt ser vi en handfull pionjärer som kommer satsa på automationsteknologi i alla sina butiker. Parallellt planerar drygt 20% att automatisera utvalda butiker. Motsvarande siffror för småskaliga lager är något högre.Högre grad av decentralisering resulterar i ökat fokus på transparent och distribuerat order- och lagerstyrningssystem (DOM). Tillsammans med en förväntad snabbt ökande användning av artificiell intelligens (AI) pekar studien på ökad betydelse av dataanalys och integrerade informationssystem, vilket delvis driver behovet av nya kompetenser i logistikorganisationen. Vi ser också att handelsföretagen satsar mer på lösningar som frigör kapacitet i centrallager och möjligtvis kortar ledtid till slutkund. Framför allt ökar användning av så kallade drop-shipment och postponement.En intressant aspekt i och med snabb utveckling av arbetssätt, logistiknätverk och automationsteknologi är företagens innovationsvilja (d.v.s. är man först på bollen, eller avvaktar för att se hur andra företag gör och vad som fungerar). Resultaten indikerar att företagens generella innovationsvilja rankas högre än innovationsviljan för lagerverksamheten – men det finns undantag där lagerlogistiken ser sig som mer innovativa. En möjlig förklaring till lägre grad av innovationsvilja för lager är att teknologiutvecklingen går snabbt och företag kan uppleva att man saknar organisation, erfarenhet och/eller beslutsunderlag för att våga ta tidiga steg. En annan möjlig förklaring är, som vår studie visar, att automationsbeslut i lager är mycket komplext (d.v.s. många faktorer att ta hänsyn till) och automatiserade lager kan vara svårändrade, och därmed kan påverka framtida strategival och distributionsnätverk. Med andra ord får man leva med sin konfiguration många år framåt, samtidigt som handeln är föränderlig, med stor osäkerhet och ändrade förväntningar från slutkund.- Vad gäller komplexitet visar studien att utvärdering av och investering i automationsteknologi tar hänsyn till en stor mängd faktorer (totalt 21). De viktigaste utvärderingsaspekterna idag är: Tillförlitlighet, skalbarhet, precision, effektivitet, flödeskapacitet och flexibilitet. Dessa motsvarar många av de logistikutmaningar som omnikanal och e-handel medfört, till exempel att möjliggöra snabb tillväxt, hantera stora och varierade flöden, växla upp/ner kapacitet över tid, och att hantera svängningar i kundefterfrågan. Fem år framåt ser vi signifikanta ökningar både för lägre rankade faktorer såsom miljö/hållbarhet, implementeringstid, helhetslösning och driftshjälp och högre rankade som flexibilitet och orderprecision.- Vad gäller påverkan på framtida strategival undersökte vi kopplingen mellan ett antal strategiska frågor och automationsteknologi. Den visar att strategi och automationslösning påverkar varandra men på olika sätt för olika företag. För vissa aspekter och företag är valet av automationsnivå och teknologi en konsekvens av olika strategier, samtidigt som vald automationsnivå och teknologi i andra situationer påverkar framtida strategival. Detta pekar på vikten av att lyckas matcha portföljen av automationsteknologi med både nuvarande och framtida möjliga strategivägar.Vi undersökte även lärdomar från implementering av automationsprojekt. Studien visar en blandad bild av erfarenheter. Medan vissa handlare ser problem med implementeringstid och igångsättning, samt tjänsteleverantörernas kapacitet, har andra handelsföretag inte alls upplevt dessa problem. Generellt är det samma handlare som har problem med överskriden tidsplan OCH tiden att få full potential, respektive en annan grupp som håller tidsplan och får ut effekt i tid. Detta är värt att studera närmare för att bättre förstå vilka faktorer som varit avgörande för att lyckas bättre eller sämre med automationsprojekt.Avslutningsvis undersökte vi panelens bedömning av handelsföretagens logistikprestation i nuläget och fem år framåt. Den övergripande bilden är att dagens prestation anses vara i paritet med konkurrenternas, men att fem år framåt ser de flesta företagen sig som mycket bättre än övriga företag inom respektive bransch. Framför allt vill man bli ledande på information till kund och att erbjuda ett integrerat omnikanal-erbjudande; men ökningen gäller också klassiska logistiska prestationer som kostnadseffektivitet och snabbhet (framför allt till online-kunder). Detta pekar på en fortsättningsvis hård konkurrenssituation mellan handelsföretagen

High-resolution behavioral time series of Japanese quail within their social environment

The behavioral dynamics within a social group not only could depend on individual traits and social-experience of each member, but more importantly, emerges from inter-individual interactions over time. Herein, we first present a dataset, as well as the corresponding original video recordings, of the results of 4 behavioral tests associated with fear and aggressive response performed on 106 Japanese quail. In a second stage, birds were housed with conspecifics that performed similarly in the behavioral tests in groups of 2 females and 1 male. By continuously monitoring each bird in these small social groups, we obtained time series of social and reproductive behavior, and high-resolution locomotor time series. This approach provides the opportunity to perform precise quantification of the temporal dynamics of behavior at an individual level within different social scenarios including when an individual showing continued aggressive behaviors is present. These unique datasets and videos are publicly available in Figshare and can be used in further analysis, or for comparison with existing or future data sets or mathematical models across different taxa.Fil: Caliva, Jorge Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Alcala, Rocio Soledad. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; ArgentinaFil: Guzmán, Diego Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Marin, Raul Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; ArgentinaFil: Kembro, Jackelyn Melissa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentin

Data Descriptor: High resolution, week-long, locomotion time series from Japanese quail in a home-box environment

Temporal and spatial patterns of locomotion reflect both resting periods and the movement from one place to another to satisfy physiological and behavioural needs. Locomotion is studied in diverse areas of biology such as chronobiology and physiology, as well as in biomathematics. Herein, the locomotion of 24 visually-isolated Japanese quails in their home-box environment was recorded continuously over a 6.5 days at a 0.5 s sampling rate. Three time series are presented for each bird: (1) locomotor activity, (2) distance ambulated, and (3) zone of the box where the bird is located. These high resolution, week-long, time series consisting of 1.07 × 10 6 data points represent, to our knowledge, a unique data set in animal behavior, and are publically available on FigShare. The data obtained can be used for analyzing dynamic changes of daily or several day locomotion patterns, or for comparison with existing or future data sets or mathematical models across different taxa.publishedVersionFil: Flesia, Ana Georgina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina.Fil: Flesia, Ana Georgina. Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Córdoba. Centro de Investigaciones y Estudios de Matemática; Argentina.Fil: Guzmán, Diego A. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales, Cátedra de Química Biológica; Argentina.Fil: Guzmán, Diego A. Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Guzmán, Diego A. Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Córdoba. Instituto de Ciencia y Tecnología de los Alimentos; Argentina.Fil: Pellegrini, Stefania. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales, Cátedra de Química Biológica; Argentina.Fil: Pellegrini, Stefania. Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Pellegrini, Stefania. Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Córdoba. Instituto de Ciencia y Tecnología de los Alimentos; Argentina.Fil: Aon, Miguel A. Johns Hopkins University. School of Medicine; Estados Unidos de AméricaFil: Marin, Raúl H. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales, Cátedra de Química Biológica; Argentina.Fil: Marin, Raúl H. Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Marin, Raúl H. Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Córdoba. Instituto de Ciencia y Tecnología de los Alimentos; Argentina.Fil: Kembro, Jackelyn M. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales, Cátedra de Química Biológica; Argentina.Fil: Kembro, Jackelyn M. Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina.Fil: Kembro, Jackelyn M. Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Córdoba. Instituto de Ciencia y Tecnología de los Alimentos; Argentina.Fil: Guzmán, Diego A. Aarhus University. Department of Animal Science; Dinamarca

Dynamics of thymol dietary supplementation in quail (Coturnix japonica): Dataset on thymol bioavailability, egg yolk fatty acids profile and performance traits

Dietary supplementation with thymol (2-isopropyl-5-methylphenol) has been proposed as a strategy to improve modern intensive poultry production. Moreover, its antioxidant properties and potential beneficial influence on lipid metabolism have fostered current research focusing on enhancing nutritional quality of meat and egg products. In general, studies have focused on the overall effects of dietary supplementation once the supplementation protocol has finished and using only one potential dose, without actually measuring bioactive compounds' concentration in the diet supplied or target tissues. Herein, we provide a unique dataset of the dynamics of thymol bioavailability and biological action, optimal dosage and duration of supplementation needed to achieve meaningful effects, as well as persistence of induced changes after chronic supplement withdrawal. Specifically, during a month-long supplementation period, 5 sampling points were evaluated separated by at least 1 week. Then, a last sampling point was studied after a 3-week withdrawal period. Three increasing doses of dietary thymol were used, and approximately 80 variables assessed. The measured variables were associated with free thymol concentration in feed, egg yolk and droppings, feed and egg yolk fatty acids profile (saturated, unsaturated, and polyunsaturated fatty acids), performance traits (body weight, feed intake, egg laying rate, egg physical characteristics), general welfare quality assessment (plumage state) and liver histopathology. The data can provide insights on the link between the dynamics of free thymol concentration and the changes in fatty acids profile in quail egg yolk, both during chronic thymol dietary supplementation and after supplement withdrawal. The comprehensive approach used herein for studying thymol supplementation outcome could help understanding the scope of its effects on a whole organism level.Fil: Fernández, María Emilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones en Bioquímica Clínica e Inmunología; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; ArgentinaFil: Kembro, Jackelyn Melissa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; ArgentinaFil: Ballesteros, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Diversidad Biológica y Ecológica; ArgentinaFil: Caliva, Jorge Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; ArgentinaFil: Marin, Raul Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; ArgentinaFil: Lábaque, María Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Diversidad Biológica y Ecológica. Cátedra de Ecología; Argentin