Violaine Colson

ORCID: 0000-0003-0934-7935
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About
Contact & Profiles
Research Areas
  • Aquaculture Nutrition and Growth
  • Animal Behavior and Welfare Studies
  • Fish Ecology and Management Studies
  • Aquaculture disease management and microbiota
  • Animal Behavior and Reproduction
  • Physiological and biochemical adaptations
  • Human-Animal Interaction Studies
  • Agriculture and Rural Development Research
  • Fish Biology and Ecology Studies
  • Primate Behavior and Ecology
  • Animal Nutrition and Physiology
  • Livestock Management and Performance Improvement
  • Agricultural Systems and Practices
  • Agricultural Economics and Policy
  • Marine animal studies overview
  • Fish biology, ecology, and behavior
  • French Urban and Social Studies
  • Insect Utilization and Effects
  • Neurobiology and Insect Physiology Research
  • Aging, Elder Care, and Social Issues
  • Neuroendocrine regulation and behavior
  • Child and Animal Learning Development
  • Plant and animal studies
  • Animal and Plant Science Education
  • Spacecraft and Cryogenic Technologies

Fish Physiology and Genomics Institute
2015-2024

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2022-2024

Sorbonne Université
2012

Physiologie de la Reproduction et des Comportements
2002-2012

Institut National de la Recherche Agronomique
2012

Université de Tours
2007

Centre National de la Recherche Scientifique
2007

Recent studies have demonstrated that horses can recognize humans based simply on visual information. However, none of these investigated whether this involves the recognition face itself, or identifying people from non-complex external clues, such as hair colour. To go beyond we wanted to know certain features were indispensable for (e.g. colours, eyes). The 11 in study had previously learned identify four unfamiliar faces (portrait view and colour) presented repeatedly a screen. We thus...

10.3389/fpsyg.2020.575808 article EN cc-by Frontiers in Psychology 2020-09-15

Fish are sensitive to temperature, but the intergenerational consequences of maternal exposure high temperature on offspring behavioural plasticity and underlying mechanisms unknown. Here we show that a thermal stress induces impaired emotional cognitive responses in rainbow trout ( Oncorhynchus mykiss ). Thermal mothers triggered inhibition locomotor fear-related upon novel environment decreased spatial learning abilities progeny. Impaired phenotypes were associated with dysregulation...

10.7717/peerj.6338 article EN cc-by PeerJ 2019-01-31

The influence of embryonic microclimate on the behavioural development birds remains unexplored. In this study, we experimentally tested whether chronic exposure to suboptimal temperatures engendered plasticity in expression fear-related behaviours and corticotropin-releasing factor brains domestic chicks (Gallus g. domesticus). We compared neurobehavioural phenotypes a control group incubated an optimal thermal environment (37.8 °C) with those experimental exposed chronically ovo (27.2 °C...

10.1038/s41598-018-20319-y article EN cc-by Scientific Reports 2018-01-24

The present study aimed to investigate whether environmental enrichment had significant effects on rainbow trout's welfare through nature-, functions- and feeling-based approaches. Fish group behavior was analyzed during the rearing phase, as well growth performance health status. We assessed individual's emotional reactivity a novel-tank test by measuring fear-related behaviors stress-related physiological responses. boldness neophobia were then evaluated towards novel object. showed that...

10.1016/j.aquaculture.2021.737825 article EN cc-by-nc-nd Aquaculture 2021-12-16

Abstract Horses are capable of identifying individual conspecifics based on olfactory, auditory or visual cues. However, this raises the questions their ability to recognize human beings and basis what This study investigated whether horses could differentiate between a familiar unfamiliar from photographs faces. Eleven were trained discrimination task using computer-controlled screen, which two presented simultaneously (32 trials/session): touching one was rewarded (S+) other not (S−). In...

10.1038/s41598-020-62940-w article EN cc-by Scientific Reports 2020-04-14

Fish welfare is becoming a priority for the fish farming industry. The search practical, easy-to-implement methods to promote farmed therefore essential. Environmental enrichment aims improve psychological and physiological needs of captive animal by increasing complexity its environment. During previous studies, we observed that seemed be positively affected short diffusions air bubbles. In this study, evaluated effects an innovative strategy consisting introducing into tank at earliest...

10.1016/j.aquaculture.2024.740828 article EN cc-by Aquaculture 2024-03-16

The effect of repeated exposure to sensory stimuli, with or without reward is well known induce stimulus-specific modifications behaviour, described as different forms learning. In recent studies we showed that a brief single pre-exposure the female-produced sex pheromone even predator sound can increase behavioural and central nervous responses this in males noctuid moth Spodoptera littoralis. To investigate if sensitivity might be restricted system form general sensitization, studied here...

10.1371/journal.pone.0034141 article EN cc-by PLoS ONE 2012-03-23

Abstract The composition of feed for farmed salmonids has strongly evolved during the last decades due to substitution fishery-derived fish oil and fishmeal by ingredients plant origin. Little information is available regarding effects this transition on adaptive capacities in fish. Two rainbow trout isogenic lines, known their divergent ability grow a plant-based diet (PBD), were fed seven months from first feeding either fully PBD or control marine-resources compared growing survival over...

10.1038/srep35957 article EN cc-by Scientific Reports 2016-11-03

Adult Lepidoptera are capable of associative learning. This helps them to forage flowers or find suitable oviposition sites. Larval learning has never been seriously considered because they have limited foraging capabilities and usually depend on adults as concerns their food choices. We tested if Spodoptera littoralis larvae can learn associate an odor with a tastant using new classical conditioning paradigm. Groups were exposed unconditioned stimulus (US: fructose quinine mixed agar)...

10.1093/chemse/bjr041 article EN Chemical Senses 2011-06-07

Abstract We investigated the effects of an early boost cortisol exposure in rainbow trout ( Oncorhynchus mykiss ) eggs during fertilisation on subsequent behavioural responses when exposed to a sudden stimulus larvae and juveniles. At 55 d post‐fertilisation (dpf), treatment had no effect high accelerations occurring after event. 146 dpf, these were more frequent cortisol‐treated fish than controls. dpf also, swimming activity was increased both before stimulus. This study underlines...

10.1111/eth.12437 article EN Ethology 2015-11-10

Improving the welfare of farm animals depends on our knowledge how they perceive and interpret their environment; latter cognitive abilities. Hence, limited range abilities is a major concern. An effective approach to explore species apply automated testing devices, which are still underdeveloped in animals. In screen-like studies, uses devices few domestic hens. We developed an original fully touchscreen device using digital computer-drawn colour pictures independent sensible cells adapted...

10.1016/j.animal.2022.100607 article EN cc-by-nc-nd animal 2022-08-01

Abstract Occupational enrichment emerges as a promising strategy for improving the welfare of farmed animals. This form aims to stimulate cognitive abilities animals by providing them with more opportunities interact and control their environment. Predictability salient daily events, in particular predictability feeding, is currently one most studied occupational strategies can take several forms. In fish, while temporal feeding has been widely investigated, signalled (based on signal, such...

10.1038/s41598-022-15302-7 article EN cc-by Scientific Reports 2022-07-05

Physical enrichment is known to improve living conditions of fish held in farming systems and has been shown promote behavioral plasticity captive fish. However, the brain's regulatory-mechanism underlying its effects remain poorly studied. The present study investigated impact a three-month exposure an enriched environment (EE vs. barren environment, BE) on modulation brain function rainbow trout (

10.3390/biology11081093 article EN cc-by Biology 2022-07-22
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