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Animal Behaviour

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https://www.readbyqxmd.com/read/28804963/effect-of-housing-system-on-reproductive-behaviour-and-on-some-endocrinological-and-seminal-parameters-of-donkey-stallions
#1
A Rota, M Sgorbini, D Panzani, F Bonelli, P Baragli, N Ille, D Gatta, C Sighieri, L Casini, M M Maggiorelli, C Aurich, F Camillo
Reproductive management of male donkeys employed for artificial breeding has been poorly studied. The aim of this study was to evaluate the effect of housing system, with the animals grouped together in a paddock or kept in individual boxes, on sexual behaviour, cortisol and testosterone concentration and seminal characteristics of adult male donkeys. The study included four Amiata donkey jacks (stallions) from which ejaculates, saliva and blood were collected during two distinct 3 weeks periods, one in the group and one in the box housing system...
August 14, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28804508/a-psychology-of-the-human-brain-gut-microbiome-axis
#2
Andrew P Allen, Timothy G Dinan, Gerard Clarke, John F Cryan
In recent years, we have seen increasing research within neuroscience and biopsychology on the interactions between the brain, the gastrointestinal tract, the bacteria within the gastrointestinal tract, and the bidirectional relationship between these systems: the brain-gut-microbiome axis. Although research has demonstrated that the gut microbiota can impact upon cognition and a variety of stress-related behaviours, including those relevant to anxiety and depression, we still do not know how this occurs. A deeper understanding of how psychological development as well as social and cultural factors impact upon the brain-gut-microbiome axis will contextualise the role of the axis in humans and inform psychological interventions that improve health within the brain-gut-microbiome axis...
April 2017: Social and Personality Psychology Compass
https://www.readbyqxmd.com/read/28803534/moving-rehabilitation-research-forward-developing-consensus-statements-for-rehabilitation-and-recovery-research
#3
Julie Bernhardt, Karen Borschmann, Lara Boyd, S Thomas Carmichael, Dale Corbett, Steven C Cramer, Tammy Hoffmann, Gert Kwakkel, Sean Savitz, Gustavo Saposnik, Marion Walker, Nick Ward
Stroke recovery is the next frontier in stroke medicine. While growth in rehabilitation and recovery research is exponential, a number of barriers hamper our ability to rapidly progress the field. Standardized terminology is absent in both animal and human research, methods are poorly described, recovery biomarkers are not well defined, and we lack consistent timeframes or measures to examine outcomes. Agreed methods and conventions for developing, monitoring, evaluating and reporting interventions directed at improving recovery are lacking, and current approaches are often not underpinned by biology...
August 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/28803365/energy-drinks-and-their-component-modulate-attention-memory-and-antioxidant-defences-in-rats
#4
M T Costa Valle, N S Couto-Pereira, C Lampert, D M Arcego, A P Toniazzo, R P Limberger, E Dallegrave, C Dalmaz, M D Arbo, M B Leal
PURPOSE: This study aimed to evaluate the effects of the subchronic consumption of energy drinks and their constituents (caffeine and taurine) in male Wistar rats using behavioural and oxidative measures. METHODS: Energy drinks (ED 5, 7.5, and 10 mL/kg) or their constituents, caffeine (3.2 mg/kg) and taurine (40 mg/kg), either separately or in combination, were administered orally to animals for 28 days. Attention was measured though the ox-maze apparatus and the object recognition memory test...
August 12, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28802914/forced-but-not-free-choice-nicotine-during-lactation-alters-maternal-behaviour-and-noradrenergic-system-of-pups-impact-on-social-behaviour-of-adolescent-isolated-male-rats
#5
Doriana Chirico, Emilia Romano, Marco Famele, Rosa Draisci, Rosanna Mancinelli, Tiziana Pascucci, Walter Adriani
Adverse effects of nicotine during pregnancy have been greatly studied, while nowadays few works are focused on consequences of maternal tobacco smoking after birth. The present study investigated the behavioural and early neurochemical effects of nicotine treatment during first weeks of post-natal life in rats. We used "free choice" treatment (H2O+NIC dams could drink from two bottles, containing 10mg/L nicotine hydrogen tartrate salt, or water) versus "forced choice" (NIC+NIC mothers could drink from two bottles both containing nicotine hydrogen tartrate salt, range from 0...
August 9, 2017: Neuroscience
https://www.readbyqxmd.com/read/28800633/feeding-fasting-dependent-recruitment-of-membrane-microdomain-proteins-to-lipid-droplets-purified-from-the-liver
#6
Kritika Sadh, Priyanka Rai, Roop Mallik
Lipid droplets (LDs) are cellular stores of neutral fat that facilitate lipid and protein trafficking in response to metabolic cues. Unlike other vesicles, the phospholipid membrane on the LD is a monolayer. Interestingly, this monolayer membrane has free cholesterol, and may therefore contain lipid microdomains that serve as a platform for assembling proteins involved in signal transduction, cell polarity, pathogen entry etc. In support of this, cell culture studies have detected microdomain-associated "raftophilic" proteins on LDs...
2017: PloS One
https://www.readbyqxmd.com/read/28800160/exercise-attenuates-alveolar-bone-loss-and-anxiety-like-behaviour-in-rats-with-periodontitis
#7
Eric F Andrade, Débora R Orlando, Júlia A S Gomes, Renata de C Foureaux, Rafael C Costa, Mary S Varaschin, Gustavo P Rogatto, Rodrigo F de Moura, Luciano J Pereira
AIM: To evaluate the effects of physical training on inflammatory and behavioral parameters of Wistar rats with periodontal disease (PD). MATERIALS AND METHODS: Twenty four animals were distributed in a 2x2 factorial design (with and without exercise, with and without PD). Trained animals swimmed one hour daily during eight weeks. PD was induced by ligature 14 days before the end of experiment and in the last week all animals were submitted to the Marble Burying Test...
August 11, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28797137/stay-at-home-strategy-brings-fitness-benefits-to-migrants
#8
James J Gilroy
In Focus: Lok, T., Veldhoen, L., Overdijk, O., Tinbergen, J. M., & Piersma, T. (2017). An age-dependent fitness cost of migration? Old trans-Saharan migrating spoonbills breed later than those staying in Europe, and late breeders have lower recruitment. Journal of Animal Ecology, 86, 998-1009. In Focus: Grist, H., Daunt, F., Wanless, S., Burthe, S. J., Newell, M. A., Harris, M. P., & Reid, J. M. (2017). Reproductive performance of resident and migrant males, females and pairs in a partially migratory bird. Journal of Animal Ecology, 86, 1010-1021...
September 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28796893/singing-from-north-to-south-latitudinal-variation-in-timing-of-dawn-singing-under-natural-and-artificial-light-conditions
#9
Arnaud Da Silva, Bart Kempenaers
1. Animals breeding at northern latitudes experience drastic changes in daily light conditions during the breeding season with decreasing periods of darkness, whereas those living at lower latitudes are exposed to naturally dark nights throughout the year. Nowadays, many animals are also exposed to artificial night lighting (often referred to as light pollution). 2. Animals strongly rely on variation in light levels to time their daily and seasonal behaviour. Previous work on passerine birds showed that artificial night lighting leads to earlier onset of dawn song...
August 10, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28795901/pine-processionary-caterpillar-thaumetopoea-pityocampa-envenomation-in-11-cats-a-retrospective-study
#10
Céline Pouzot-Nevoret, Maxime Cambournac, Amandine Violé, Isabelle Goy-Thollot, Gilles Bourdoiseau, Anthony Barthélemy
Objectives The aim of this study was to describe the clinical manifestations in cats of contact with caterpillars of the pine processionary moth. Methods Data were retrospectively obtained from the medical records (2004-2016) of cats that had been in contact with caterpillars of the pine processionary moth. Results Eleven cats were included in the study. The prevalence of lepidopterism was 0.13%. Tongue lesions and ptyalism were both present in 10/11 (90%) cats. Systemic signs consisted exclusively of vomiting and were encountered in 4/11 (36%) cats...
August 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28795236/a-novel-continuous-inhibitory-control-task-variation-in-individual-performance-by-young-pheasants-phasianus-colchicus
#11
Christina Meier, Sara Raj Pant, Jayden O van Horik, Philippa R Laker, Ellis J G Langley, Mark A Whiteside, Frederick Verbruggen, Joah R Madden
Inhibitory control enables subjects to quickly react to unexpectedly changing external demands. We assessed the ability of young (8 weeks old) pheasants Phasianus colchicus to exert inhibitory control in a novel response-inhibition task that required subjects to adjust their movement in space in pursuit of a reward across changing target locations. The difference in latencies between trials in which the target location did and did not change, the distance travelled towards the initially indicated location after a change occurred, and the change-signal reaction time provided a consistent measure that could be indicative of a pheasant's inhibitory control...
August 9, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28794579/temporal-and-geographic-patterns-of-kinship-structure-in-common-dolphins-delphinus-delphis-suggest-site-fidelity-and-female-biased-long-distance-dispersal
#12
Laura Ball, Kypher Shreves, Małgorzata Pilot, André E Moura
ABSTRACT: Social structure plays a crucial role in determining a species' dispersal patterns and genetic structure. Cetaceans show a diversity of social and mating systems, but their effects on dispersal and genetic structure are not well known, in part because of technical difficulties in obtaining robust observational data. Here, we combine genetic profiling and GIS analysis to identify patterns of kin distribution over time and space, to infer mating structure and dispersal patterns in short-beaked common dolphins (Delphinus delphis)...
2017: Behavioral Ecology and Sociobiology
https://www.readbyqxmd.com/read/28792955/a-robotic-system-for-researching-social-integration-in-honeybees
#13
Karlo Griparić, Tomislav Haus, Damjan Miklić, Marsela Polić, Stjepan Bogdan
In this paper, we present a novel robotic system developed for researching collective social mechanisms in a biohybrid society of robots and honeybees. The potential for distributed coordination, as observed in nature in many different animal species, has caused an increased interest in collective behaviour research in recent years because of its applicability to a broad spectrum of technical systems requiring robust multi-agent control. One of the main problems is understanding the mechanisms driving the emergence of collective behaviour of social animals...
2017: PloS One
https://www.readbyqxmd.com/read/28792485/operational-details-of-the-five-domains-model-and-its-key-applications-to-the-assessment-and-management-of-animal-welfare
#14
REVIEW
David J Mellor
In accord with contemporary animal welfare science understanding, the Five Domains Model has a significant focus on subjective experiences, known as affects, which collectively contribute to an animal's overall welfare state. Operationally, the focus of the Model is on the presence or absence of various internal physical/functional states and external circumstances that give rise to welfare-relevant negative and/or positive mental experiences, i.e., affects. The internal states and external circumstances of animals are evaluated systematically by referring to each of the first four domains of the Model, designated "Nutrition", "Environment", "Health" and "Behaviour"...
August 9, 2017: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28791522/pre-processing-and-transfer-entropy-measures-in-motor-neurons-controlling-limb-movements
#15
Fernando P Santos, Carlos D Maciel, Philip L Newland
Directed information transfer measures are increasingly being employed in modeling neural system behavior due to their model-free approach, applicability to nonlinear and stochastic signals, and the potential to integrate repetitions of an experiment. Intracellular physiological recordings of graded synaptic potentials provide a number of additional challenges compared to spike signals due to non-stationary behaviour generated through extrinsic processes. We therefore propose a method to overcome this difficulty by using a preprocessing step based on Singular Spectrum Analysis (SSA) to remove nonlinear trends and discontinuities...
August 9, 2017: Journal of Computational Neuroscience
https://www.readbyqxmd.com/read/28791178/kelp-and-dolphin-gulls-cause-perineal-wounds-in-south-american-fur-seal-pups-arctocephalus-australis-at-guafo-island-chilean-patagonia
#16
Mauricio Seguel, Francisco Muñoz, Felipe Montalva, Diego Perez-Venegas, Héctor Pavés, Nicole Gottdenker
During five reproductive seasons, we documented the presence, extent and origin of perineal wounds in South American fur seal pups (Arctocephalus australis) on Guafo Island, Northern Chilean Patagonia. The seasonal prevalence of perineal wounds ranged from 5 to 9%, and new cases were more common at the end of the breeding season (February), when pups were on average two months old and were actively expelling hookworms (Uncinaria sp). Histologically, wounds corresponded to marked ulcerative lymphoplasmacytic and histiocytic dermatitis with granulation tissue and mixed bacterial colonies...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28791135/local-interactions-and-global-properties-of-wild-free-ranging-stickleback-shoals
#17
Ashley J W Ward, Timothy M Schaerf, James E Herbert-Read, Lesley Morrell, David J T Sumpter, Mike M Webster
Collective motion describes the global properties of moving groups of animals and the self-organized, coordinated patterns of individual behaviour that produce them. We examined the group-level patterns and local interactions between individuals in wild, free-ranging shoals of three-spine sticklebacks, Gasterosteus aculeatus. Our data reveal that the highest frequencies of near-neighbour encounters occur at between one and two body lengths from a focal fish, with the peak frequency alongside a focal individual...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28780924/the-influence-of-previous-medical-treatments-on-milking-order-in-dairy-cows
#18
A Littooij, A Butterworth
Animal health issues are a problem on many dairy farms, and much is already known about clinical treatments and the behaviour of sick animals. Animal health issues can influence behaviour seen around the milking parlour, but less is known about the relationship between the number of previous medical treatments and the queuing to be milked, the 'milking order'. Information was collected on five afternoon milking sessions, the individual cows' age and the medical treatment history of each cow in a group of 100 cows...
August 7, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28776950/genetics-of-dispersal
#19
Marjo Saastamoinen, Greta Bocedi, Julien Cote, Delphine Legrand, Frédéric Guillaume, Christopher W Wheat, Emanuel A Fronhofer, Cristina Garcia, Roslyn Henry, Arild Husby, Michel Baguette, Dries Bonte, Aurélie Coulon, Hanna Kokko, Erik Matthysen, Kristjan Niitepõld, Etsuko Nonaka, Virginie M Stevens, Justin M J Travis, Kathleen Donohue, James M Bullock, Maria Del Mar Delgado
Dispersal is a process of central importance for the ecological and evolutionary dynamics of populations and communities, because of its diverse consequences for gene flow and demography. It is subject to evolutionary change, which begs the question, what is the genetic basis of this potentially complex trait? To address this question, we (i) review the empirical literature on the genetic basis of dispersal, (ii) explore how theoretical investigations of the evolution of dispersal have represented the genetics of dispersal, and (iii) discuss how the genetic basis of dispersal influences theoretical predictions of the evolution of dispersal and potential consequences...
August 3, 2017: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/28774241/an-experimental-model-on-the-biomechanical-behaviour-of-the-flexor-tendons-in-new-zealand-rabbits
#20
D Skouteris, E Magnissalis, A Papalois, S Varitimidis, P J Papagelopoulos, A B Zoubos
BACKGROUND: In order to introduce new pharmacological agents with the intent to inhibit the adhesion formation, it is important to test such products on laboratory animals under a protocol that can evaluate the quantitative and qualitative aspects of healing of the tendons. Most experimental models focus on the tensile strength and histological analysis of the tendons, failing to sufficiently quantify the degree of the adhesion formation. METHODS: The experiment included six male New Zealand rabbits that underwent surgery of their right forepaws...
September 2017: Journal of Hand Surgery Asian-Pacific Volume
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