175 research outputs found
An Activity Classifier based on Heart Rate and Accelerometer Data Fusion
The European project ProeTEX realized a novel set of prototypes based on smart garments
that integrate sensors for the real-time monitoring of physiological, activity-related and environmental
parameters of the emergency operators during their interventions. The availability of these parameters
and the emergency scenario suggest the implementation of novel classification methods aimed at
detecting dangerous status of the rescuer automatically, and based not only on the classical activityrelated
signals, rather on a combination of these data with the physiological status of the subject. Here
we propose a heart rate and accelerometer data fusion algorithm for the activity classification of
rescuers in the emergency context
Determination of fatty acids profile in original brown cows dairy products and relationship with alpine pasture farming system
This study aimed to evaluate the relationships between fatty acids and the pattern that most contributes to discriminate between two farming systems, in which the main difference was the practice, or not, of alpine summer-grazing. Milk and cheese were sampled every month in two farms of Original Brown cows identical under geographical location and management during no grazing season point of view in the 2018 season. Fatty acids concentrations were determined by gas chromatography. The principal component analysis extracted three components (PCs). Mammary gland de novo synthetized fatty acids (C14:0, C14:1 n9, and C16:0) and saturated and monosaturated C18 fatty acids (C18:0, C18:1 n9c) were inversely associated in the PC1; PC2 included polyunsaturated C18 fatty acids (C18:2 n6c, C18:3 n3) and C15:0 while conjugated linoleic acid (CLA n9c, n11t) and fatty acids containing 20 or more carbon atoms (C21:0, C20:5 n3) were associated in the PC3. The processes of rumen fermentation and de novo synthesis in mammary gland that are, in turn, influenced by diet, could explain the relationships between fatty acids within each PC. The discriminant analyses showed that the PC2 included the fatty acids profile that best discriminated between the two farming systems, followed by PC3 and, lastly, PC1. This model, if validated, could be an important tool to the dairy industry
Prevalence of Anisakis Larvae in Different Fish Species in Southern Albania: Five-Year Monitoring (2016-2020)
Anisakidae are nematodes that commonly parasitize in the coelomic cavity and viscera of several fish species. They can be found in flesh, which is why they have an important economic and public health impact. The aim of the current work was to assess the presence and prevalence of Anisakis larvae in fish species caught in the coastal area of the Karaburun Peninsula in Vlora Bay (Albania). A total of 856 of wild teleosts and 219 specimens of farmed fish were collected over a 5-year period (from 2016 to 2020). The results showed that out of a total of 1075 analyzed samples, 361 (33.58%) were parasitized with L3 larvae. In particular, only Solea vulgaris returned negative results, while Sparus aurata, Dicentrarchus labrax, and Sardinella aurita showed the lowest prevalence (4.55%, 9.17%, and 10.53%, respectively) and mean abundance (0.84, 1.19, and 0.92, respectively). Conversely, Scomber japonicus and Scomber scombrus showed the highest prevalence (74.07% and 68.00%, respectively) and mean abundance (188.24 and 249.82, respectively). The data suggest that the coastal area of the Karaburun Peninsula (southern Albania) may be a high-risk area for zoonotic diseases, and the consumption of raw or undercooked fish caught in the Vlora district could result in the acquisition of human anisakiasis. For these reasons, it is necessary to improve the surveillance plan
Evaluation of the difference in contamination by per- and poly-fluorinated substances (PFASs) in wild boar and swine tissues sampled in the same area
Pentraxin 3 is up-regulated in epithelial mammary cells during Staphylococcus aureus intra-mammary infection in goat
Pentraxin 3 is the prototypic long pentraxin and is produced by different cell populations (dendritic cells, monocytes/macrophages, endothelial cells, and fibroblasts) after pro-inflammatory stimulation. Different studies demonstrated the up-regulation of PTX3 during mastitis in ruminants, but its role is still unknown. We first investigated the conservation of PTX3 sequence among different species and its pattern of expression in a wide panel of organs from healthy goats. We studied the role modulation of PTX3 during natural and experimental mammary infection, comparing its expression in blood, milk and mammary tissues from healthy and Staphylococcus aureus infected animals. We confirmed the high conservation of the molecule among the different species. Goat PTX3 was expressed at high levels in bone marrow, mammary gland, aorta, rectum, pancreas, skin and lungs. PTX3 was up-regulated in epithelial mammary cells and in milk cells after S. aureus infection, suggesting that it represents a first line of defense in goat udder
Dietary supplementation with n-3 polyunsaturated fatty acids: Effects on reproductive and productive performance and meat quality in rabbit breeding
Rabbit breeding has many critical aspects related to reproduction, production, and animal welfare, which reduce its profitability as well as consumer attractiveness. Dietary supplementation with n-3 polyunsaturated fatty acids (PUFA) seems to be a good nutritional strategy to improve several aspects of rabbit breeding, enhance animal welfare and produce a new functional food considered healthy for human consumption. For this reason, the main available scientific research regarding the physiological effects of n-3 PUFA rich products supplemented to the rabbit diet will be reviewed. In particular, consequences on the reproductive performances of both doe and buck, the productive parameters, and the meat quality will be analysed
The Prophylactic Use of Bovine Colostrum in a Murine Model of TNBS-Induced Colitis
This study investigated the eects of a short-term administration of bovine colostrum (BC)
in a TNBS model of induced colitis. Colitis was induced by TNBS treatment after seven days of BC (BC
group, n = 12) or saline (control group, n = 12) administration in mice. Clinical signs, histopathological
characteristics, expression levels of Toll-like receptor 4 (TLR4), pro- and anti-inflammatory cytokines,
and microbial composition were assessed. BC was well tolerated and did not induce any histological
damage or clinical symptoms. After TNBS treatment, the BC group showed a reduction in body
weight (BW) loss compared to Control (p < 0.05). Moreover, expression levels of TLR4 (p < 0.01),
Interleukin-1 (IL-1; p < 0.001), Interleukin-8 (IL-8; p < 0.001), and Interleukin-10 (IL-10; p < 0.001)
were lower in mice administered with BC. Finally, Escherichia coli were higher (p < 0.05), while
Enterococci (p < 0.001), Lactobacillus spp. (p < 0.001), and Bifidobacterium spp. (p < 0.05) were lower in
Control than BC group. This study confirms that pre-treatment with BC modulates the expression of
genes and the count of microbes involved in the etiopathogenesis of colitis
Identification of rabbit main leukocyte populations based on scatter properties: A flow cytometric approach
The complete blood count analysis is of great importance in animals, as it can help in the initial diagnosis and the subsequent follow-up for these patients. For this purpose, the manual count is mainly used in rabbits to identify different cell populations and their respective percentages. Different studies have shown that complete blood count can also be performed using automatic methods to analyse rabbit cell populations. Flow cytometry is a relatively new technique in veterinary medicine that has been used for the diagnosis and staging of many medical disorders in many species. In this study, sixty-one peripheral blood samples were collected from healthy rabbits and analysed using both classic manual method and flow cytometry to evaluate the usefulness of flow cytometry in identifying different cell populations based only on their scatter properties. The results showed that flow cytometry is a reliable method to detecting different cell populations, such as granulocytes, small and large lymphocytes (for all: intra-class correlation coefficient >0.75) with high accuracy based on their scatter properties. Biases calculated using the Bland-Altman approach ranged from-0.1118to-1.256 for large lymphocytes and monocytes, respectively. However, further research with a larger number of cases and the implication of other helping techniques such as cell sorting, is necessary to fully confirm these results
Do personality traits diverge in different communally housed captive penguin species?
Research into animal personality has grown over the last decade as its relevance to animal health and welfare has become more apparent. Personality has been used also for aspects of captive management, including decreasing stress, increasing positive health outcomes, successful breeding also in terms of infant survival. For wildlife management, determining inter-species differences in the personality traits of communally housed animals could be of great help to optimize the use of resources, in order to improve animal welfare. In group-living species, integrated decisions made by individuals result in collective behaviors which may, in turn, influence interactions between individuals and shape the resulting social system. There is evidence that animal groups may exhibit coordinated behavior and make collective decisions based on simple interaction rules. It has been described that in a flock or a colony, birds tend to exhibit behavioral synchrony, maintaining similar behavior at approximately the same time throughout the group, and also wild penguins have exhibited within-group synchrony.
In this study we have considered three species of penguins, housed together at RZSS Edinburgh Zoo, Scotland, UK. The exhibit houses a colony of Gentoo penguins (Pygoscelis papua), a bachelor group of King penguins (Aptenodytes patagonicus) and a small colony of Northern rockhopper penguins (Eudyptes moseleyi). In a mixed species enclosure, animals are far more intermingled than they would be in the wild and have a limited area in which to maintain different territories.
A keeper questionnaire (coding method) was used to produce personality profiles for each penguin. A multivariate analysis (Multiple Factor Analysis) on the mean values of the variables was used to analyze the data. The quantitative variables were all the measured characteristics; gender and species were included as qualitative variables. Results outlined a distinct personality in each animal, distinguishing each species in personality traits. The three species are almost sharply separated in the multidimensional space. In Gentoo and in Northern rockhopper penguins the prevailing components include some aggressiveness, fear, and insecurity. King penguins seem to be the \u201cmildest\u201d species, with components related to activity, playfulness, friendliness, and curiosity. We advocate that a deeper understanding of each animal\u2019s personality and behavior can offer practical help to zoological institutions to facilitate daily husbandry, animal welfare, tailor training or enrichment and ultimately increase reproductive success
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