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Animal Behaviour

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https://www.readbyqxmd.com/read/28732295/determination-of-54-pesticides-in-waters-of-the-iberian-douro-river-estuary-and-risk-assessment-of-environmentally-relevant-mixtures-using-theoretical-approaches-and-artemia-salina-and-daphnia-magna-bioassays
#1
Catarina Cruzeiro, Sofia Amaral, Eduardo Rocha, Maria João Rocha
As a case study, the estuary of the international Douro River (Iberian Peninsula) was sampled over a year (2010) at six sampling sites to determine the presence of 56 pesticides of different categories (insecticides, herbicides, and fungicides). 96% of measured pesticides were detected in 79% of the quantified samples. Individual average pesticide concentrations ranged from 39 to 1 265ng/L, indicating a ubiquitous presence of the selected compounds; moreover, twelve pesticides were above the 2013/39/EU Directive limits...
July 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28730756/animal-assisted-psychotherapy-for-young-people-with-behavioural-problems-in-residential-care
#2
Alexander Muela, Nekane Balluerka, Nora Amiano, Miguel Angel Caldentey, Jone Aliri
The aim of this study was to evaluate the impact of an animal-assisted psychotherapy (AAP) programme on clinical symptoms, personal adjustment, and adaptive skills in a group of adolescents in residential care who had experienced childhood trauma and who presented mental health problems and difficulties adapting to the care home environment. The 87 participants (Mage  = 15.17, SD = 1.53) were divided into two groups: a treatment group (25 girls and 27 boys; Mage  = 15.00, SD = 1.55) and a control group (9 girls and 26 boys; Mage  = 15...
July 20, 2017: Clinical Psychology & Psychotherapy
https://www.readbyqxmd.com/read/28730707/establishment-and-characterization-of-a-novel-murine-model-of-pancreatic-cancer-cachexia
#3
Katherine A Michaelis, Xinxia Zhu, Kevin G Burfeind, Stephanie M Krasnow, Peter R Levasseur, Terry K Morgan, Daniel L Marks
BACKGROUND: Cachexia is a complex metabolic and behavioural syndrome lacking effective therapies. Pancreatic ductal adenocarcinoma (PDAC) is one of the most important conditions associated with cachexia, with >80% of PDAC patients suffering from the condition. To establish the cardinal features of a murine model of PDAC-associated cachexia, we characterized the effects of implanting a pancreatic tumour cell line from a syngeneic C57BL/6 KRAS(G12D) P53(R172H) Pdx-Cre(+/+) (KPC) mouse...
July 20, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28729626/tool-manipulation-by-rats-rattus-norvegicus-according-to-the-position-of-food
#4
Akane Nagano, Kenjiro Aoyama
Tool-use behaviour has been observed in nonhuman animals in the wild and in experimental settings. In the present study, we investigated whether rats (Rattus norvegicus) could manipulate a tool according to the position of food to obtain the food in an experimental setting. Eight rats were trained to use a rake-shaped tool to obtain food beyond their reach using a step-by-step protocol in the initial training period. Following training, the rake was placed at the centre of the experimental apparatus, and food was placed on either the left or right side of the rake...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728597/interaction-of-direct-and-social-genetic-effects-with-feeding-regime-in-growing-rabbits
#5
Miriam Piles, Ingrid David, Josep Ramon, Laurianne Canario, Oriol Rafel, Mariam Pascual, Mohamed Ragab, Juan P Sánchez
BACKGROUND: Most rabbit production farms apply feed restriction at fattening because of its protective effect against digestive diseases that affect growing rabbits. However, it leads to competitive behaviour between cage mates, which is not observed when animals are fed ad libitum. Our aim was to estimate the contribution of direct ([Formula: see text]) and social ([Formula: see text]) genetic effects (also known as indirect genetic effects) to total heritable variance of average daily gain ([Formula: see text]) in rabbits on different feeding regimens (FR), and the magnitude of the interaction between genotype and FR (G × FR)...
July 20, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/28728387/effects-of-environmental-enrichment-on-behaviour-physiology-and-performance-of-pigs-a-review
#6
Mbusiseni Vusumuzi Mkwanazi, Cyprial Ndumiso Ncobela, Arnold Tapera Kanengoni, Michael Chimonyo
The aim of this paper is to critically analyse and synthesise existing knowledge concerning the use of environmental enrichment and its effect on behaviour, physiology and performance of pigs housed in intensive production systems. The objective is also to provide clarity as to what constitute successful enrichment and recommend on when and how enrichment should be used. Environmental enrichment is usually understood as an attempt to improve animal welfare and to lesser extent, performance. Common enrichment objects used are straw bedding, suspended rope and wood shavings, toys, rubber tubing, coloured plastic keys, table tennis balls, chains and strings...
June 26, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28726319/ultrastructure-of-lingual-papillae-in-common-chimpanzee-pan-troglodytes-foetus-newborn-and-adult-specimens
#7
J F Pastor, M Barbosa, F J De Paz, I San José, M Levanti, J M Potau, J A Vega, R Cabo
Among primates, the two recognized species of chimpanzees (common chimpanzee, Pan troglodytes; pygmy chimpanzee, Pan paniscus) are considered to be the most similar to humans. Importantly, in mammals, the food intake behaviour largely determines the tongue morphology, including the type, proportion and distribution of gustatory and non-gustatory tongue papillae. The lingual papillae form during its development and mature in post-natal life depending on the different feeding. In this study, we have used scanning electron microscopy to analyse the age-related changes in the lingual papillae of foetal, newborn and adult P...
July 20, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28725453/development-of-an-implementation-intention-based-intervention-to-change-children-s-and-parent-carers-behaviour
#8
Karen Davies, Christopher J Armitage, Yin-Ling Lin, James Munro, Tanya Walsh, Peter Callery
BACKGROUND: Implementation intentions enable individuals to translate good intentions into action. Parents and children can find maintaining oral health difficult, as evidenced by the presence of tooth decay. This is a common condition in children in spite of being preventable through the use of regular tooth brushing, fluoride protection and avoiding sugar intake. Even when parents and children are positive about looking after the teeth, they can face challenges in maintaining consistent habits...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28724739/distinct-spinning-patterns-gain-differentiated-loading-tolerance-of-silk-thread-anchorages-in-spiders-with-different-ecology
#9
Jonas O Wolff, Arie van der Meijden, Marie E Herberstein
Building behaviour in animals extends biological functions beyond bodies. Many studies have emphasized the role of behavioural programmes, physiology and extrinsic factors for the structure and function of buildings. Structure attachments associated with animal constructions offer yet unrealized research opportunities. Spiders build a variety of one- to three-dimensional structures from silk fibres. The evolution of economic web shapes as a key for ecological success in spiders has been related to the emergence of high performance silks and thread coating glues...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28724689/california-scrub-jays-reduce-visual-cues-available-to-potential-pilferers-by-matching-food-colour-to-caching-substrate
#10
Laura A Kelley, Nicola S Clayton
Some animals hide food to consume later; however, these caches are susceptible to theft by conspecifics and heterospecifics. Caching animals can use protective strategies to minimize sensory cues available to potential pilferers, such as caching in shaded areas and in quiet substrate. Background matching (where object patterning matches the visual background) is commonly seen in prey animals to reduce conspicuousness, and caching animals may also use this tactic to hide caches, for example, by hiding coloured food in a similar coloured substrate...
July 2017: Biology Letters
https://www.readbyqxmd.com/read/28724221/impact-of-the-nsaid-diclofenac-on-survival-development-behaviour-and-health-of-embryonic-and-juvenile-stages-of-brown-trout-salmo-trutta-f-fario
#11
Simon Schwarz, Hannah Schmieg, Marco Scheurer, Heinz-R Köhler, Rita Triebskorn
The NSAID diclofenac is controversially discussed with respect to its environmental relevance. Since further information is need to assess whether diclofenac should be included as substance of priority in the EU water framework directive, we investigated the impact of this analgesic on the embryonic development of brown trout (Salmo trutta f. fario) from fertilized egg until the end of sac-fry stage and studied effects in juvenile fish six months post hatch. Embryos were exposed to five test concentrations (0...
July 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28720859/increased-male-male-mounting-behaviour-in-desert-locusts-during-infection-with-an-entomopathogenic-fungus
#12
Lisa M Clancy, Amy L Cooper, Gareth W Griffith, Roger D Santer
Same-sex sexual behaviour occurs across diverse animal taxa, but adaptive explanations can be difficult to determine. Here we investigate male-male mounting (MMM) behaviour in female-deprived desert locust males infected with the entomopathogenic fungus Metarhizium acridum. Over a four-week period, infected locusts performed more MMM behaviours than healthy controls. Among infected locusts, the probability of MMM, and the duration of time spent MMM, significantly increased with the mounting locust's proximity to death...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28719603/the-%C3%A2-100-lab-a-3d-printable-open-source-platform-for-fluorescence-microscopy-optogenetics-and-accurate-temperature-control-during-behaviour-of-zebrafish-drosophila-and-caenorhabditis-elegans
#13
Andre Maia Chagas, Lucia L Prieto-Godino, Aristides B Arrenberg, Tom Baden
Small, genetically tractable species such as larval zebrafish, Drosophila, or Caenorhabditis elegans have become key model organisms in modern neuroscience. In addition to their low maintenance costs and easy sharing of strains across labs, one key appeal is the possibility to monitor single or groups of animals in a behavioural arena while controlling the activity of select neurons using optogenetic or thermogenetic tools. However, the purchase of a commercial solution for these types of experiments, including an appropriate camera system as well as a controlled behavioural arena, can be costly...
July 2017: PLoS Biology
https://www.readbyqxmd.com/read/28718892/methoxetamine-affects-brain-processing-involved-in-emotional-response-in-rats
#14
M T Zanda, P Fadda, S Antinori, M di Chio, W Fratta, C Chiamulera, L Fattore
BACKGROUND AND PURPOSE: Methoxetamine (MXE) is a novel psychoactive substance that is emerging on the Internet and induces dissociative effects and acute toxicity. Yet, its pharmacological effects are still poorly investigated. EXPERIMENTAL APPROACH: We examined a range of behavioural effects induced by acute intraperitoneal administration of MXE (0.5-5 mg/kg) in rats, and whether it causes rapid neuroadaptive molecular changes. KEY RESULTS: MXE (0...
July 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28716096/optimizing-reproducibility-of-operant-testing-through-reinforcer-standardization-identification-of-key-nutritional-constituents-determining-reward-strength-in-touchscreens
#15
Eun Woo Kim, Benjamin U Phillips, Christopher J Heath, So Yeon Cho, Hyunjeong Kim, Jemeen Sreedharan, Ho-Taek Song, Jong Eun Lee, Timothy J Bussey, Chul Hoon Kim, Eosu Kim, Lisa M Saksida
Reliable and reproducible assessment of animal learning and behavior is a central aim of basic and translational neuroscience research. Recent developments in automated operant chamber technology have led to the possibility of universal standard protocols, in addition to increased translational potential, reliability and accuracy. However, the impact of regional and national differences in the supplies of available reinforcers in this system on behavioural performance and inter-laboratory variability is an unknown and at present uncontrolled variable...
July 17, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28714887/characterization-of-enterotoxigenic-bacillus-cereus-sensu-lato-and-staphylococcus-aureus-isolates-and-associated-enterotoxin-production-dynamics-in-milk-or-meat-based-broth
#16
Laura Walker-York-Moore, Sean C Moore, Edward M Fox
Bacillus cereus sensu lato species, as well as Staphylococcus aureus, are important pathogenic bacteria which can cause foodborne illness through the production of enterotoxins. This study characterised enterotoxin genes of these species and examined growth and enterotoxin production dynamics of isolates when grown in milk or meat-based broth. All B. cereus s. l. isolates harboured nheA, hblA and entFM toxin genes, with lower prevalence of bceT and hlyII. When grown at 16 °C, toxin production by individual B...
July 15, 2017: Toxins
https://www.readbyqxmd.com/read/28714321/zoophilia-in-an-adolescent-with-high-functioning-autism-from-sri-lanka
#17
Miyuru Chandradasa, Layani Champika
OBJECTIVE: Zoophilia is a rare paraphilic disorder with intense sexual urges involving animals. Autism is characterised by impairments in social communication and repetitive, restricted behaviours (RRB). Reported cases of zoophilia are limited worldwide, and zoophilia in autism is rarer. METHOD: This is a case report describing this unique and relatively unrecognised association in a male adolescent from Sri Lanka. RESULTS: A 17-year-old boy diagnosed with autism has average intelligence and academic capabilities...
July 1, 2017: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/28711026/recent-advancement-in-biosensors-technology-for-animal-and-livestock-health-management
#18
REVIEW
Suresh Neethirajan, Satish K Tuteja, Sheng-Tung Huang, David Kelton
The term biosensors encompasses devices that have the potential to quantify physiological, immunological and behavioural responses of livestock and multiple animal species. Novel biosensing methodologies offer highly specialised monitoring devices for the specific measurement of individual and multiple parameters covering an animal's physiology as well as monitoring of an animal's environment. These devices are not only highly specific and sensitive for the parameters being analysed, but they are also reliable and easy to use, and can accelerate the monitoring process...
July 8, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28709915/sex-differences-in-somatic-and-sensory-motor-development-after-neonatal-anoxia-in-wistar-rats
#19
Amrita Jha Kumar, Silvia Honda Takada, Lívia Clemente Motta-Teixeira, Vitor Yonamine Lee, Gilberto Fernando Xavier, Maria Inês Nogueira
Currently, one of the important causes of brain injury in new-borns is the neonatal anoxia which impacts the perinatology services worldwide. Animal models of anoxia have been used to assess its effects at cellular and behavioural levels in all ages, but few studies focus on sex differences. This study aimed to investigate some physical parameters of development, sensorimotor alterations, early neurological reflexes as well as the density of cells in motor and sensorimotor cerebral cortex of adolescent rats submitted to neonatal anoxia...
July 12, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28709398/cannibalism-and-activity-rate-in-larval-damselflies-increase-along-a-latitudinal-gradient-as-a-consequence-of-time-constraints
#20
Szymon Sniegula, Maria J Golab, Frank Johansson
BACKGROUND: Predation is ubiquitous in nature. One form of predation is cannibalism, which is affected by many factors such as size structure and resource density. However, cannibalism may also be influenced by abiotic factors such as seasonal time constraints. Since time constraints are greater at high latitudes, cannibalism could be stronger at such latitudes, but we know next to nothing about latitudinal variation in cannibalism. In this study, we examined cannibalism and activity in larvae of the damselfly Lestes sponsa along a latitudinal gradient across Europe...
July 14, 2017: BMC Evolutionary Biology
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