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Animal welfare

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https://www.readbyqxmd.com/read/28444756/e7-1057%C3%AE-ta-mutation-of-the-acidic-%C3%AE-glucosidase-gene-causes-pompe-s-disease-in-droughtmaster-cattle
#1
R E Lyons, D J Johnston, M R McGowan, A Laing, B Robinson, H Owen, B D Hill, B M Burns
OBJECTIVE: To determine whether known loss-of-function alleles of the acidic α-glucosidase gene (GAA) are present in the Droughtmaster breed and, if so, whether the clinical signs and pathology of generalised glycogenosis (Pompe's disease) previously reported in other affected cattle are also seen in homozygous Droughtmasters. DESIGN: Existing genomic and other diagnostic tests developed for generalised glycogenosis in cattle were used to test for the presence of the three known loss-of-function alleles of GAA in a herd of Droughtmaster cattle...
May 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28444251/effect-of-eu-electrical-stunning-conditions-on-breast-meat-quality-of-broiler-chickens
#2
F Sirri, M Petracci, M Zampiga, A Meluzzi
Electrical stunning is still the main stunning method used worldwide in commercial poultry plants. The stunning procedures in water bath stunners affect both bird welfare and meat quality attributes. The European Union (EU) Council Regulation 1099/2009 on the protection of the animal at the time of killing established the minimum current flow through an individual bird at a specified frequency to assure an effective stun that must last until the bird's death. The aim of this study was to compare the effect of the application of different stunning current flows on the prevalence of hemorrhages (classified as 1 = no lesion, 2 = moderate, and 3 = severe lesion) and some quality traits (pHu, color, drip and cooking losses, and shear force) of chicken breast meat...
April 24, 2017: Poultry Science
https://www.readbyqxmd.com/read/28444189/environmental-enrichment-in-the-21st-century
#3
Kristine Coleman, Melinda A Novak
More than a quarter of a century has elapsed since the Animal Welfare Act mandated that research facilities develop and follow a plan to promote the psychological well-being of captive primates. Since passage of this law, considerable effort and resources have been directed to designing environmental enrichment strategies in an effort to improve animal welfare. These plans typically consist of environmental enrichment and socialization efforts. While environmental enhancement has undergone a great deal of improvement in the past 25 years, it should be viewed as a continual work in progress, which takes advantage of emergent and future technologies...
April 21, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28443289/frequency-and-duration-of-fecal-shedding-of-salmonella-enteritidis-by-experimentally-infected-laying-hens-housed-in-enriched-colony-cages-at-different-stocking-densities
#4
Richard K Gast, Rupa Guraya, Deana R Jones, Kenneth E Anderson, Darrin M Karcher
Human infections with Salmonella Enteritidis are often attributed to the consumption of contaminated eggs, so the prevalence of this pathogen in egg-laying poultry is an important public health risk factor. Numerous and complex environmental influences on Salmonella persistence and transmission are exerted by management practices and housing facilities used in commercial egg production. In recent years, the animal welfare implications of poultry housing systems have guided the development of alternatives to traditional cage-based housing, but their food safety consequences are not yet fully understood...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28436163/social-defeat-models-in-animal-science-what-we-have-learned-from-rodent-models
#5
REVIEW
Atsushi Toyoda
Studies on stress and its impacts on animals are very important in many fields of science, including animal science, because various stresses influence animal production and animal welfare. In particular, the social stresses within animal groups have profound impact on animals, with the potential to induce abnormal behaviors and health problems. In humans, social stress induces several health problems, including psychiatric disorders. In animal stress models, social defeat models are well characterized and used in various research fields, particularly in studies concerning mental disorders...
April 24, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28435201/association-of-claw-disorders-with-subclinical-intramammary-infections-in-egyptian-dairy-cows
#6
Walid Refaai, Medhat Gad, Yasser Mahmmod
AIM: Bovine mastitis and lameness are the most common production diseases affecting dairy farms worldwide resulting in huge economic impact and impaired animal welfare. The objective of this field study was to investigate the association of infectious and non-infectious claw disorders with the occurrence of subclinical intramammary infections (IMIs) diagnosed by California mastitis test (CMT) in dairy cows under Egyptian conditions. MATERIALS AND METHODS: A total of 43 dairy cows were included in this field study...
March 2017: Veterinary World
https://www.readbyqxmd.com/read/28433720/establishment-of-a-non-invasive-method-for-stress-evaluation-in-farmed-salmon-based-on-direct-fecal-corticoid-metabolites-measurement
#7
Yanran Cao, Ann-Kristin Tveten, Anne Stene
Fish welfare is an important issue for growth of the aquaculture industry. Stress responses represent animal's natural reactions to challenging conditions and could be used as a welfare indicator. Cortisol level is relevant to fish welfare condition, and is a readily measured component of the primary stress response system. Generally, cortisol is measured by blood sampling. However, fish blood cortisol level could be instantly influenced by handling-stress at sampling. Fecal corticoid metabolites (FCM) are a mixture of several different metabolites with a wide range of polarities...
April 19, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28432239/grant-to-support-charity-s-work-to-improve-farm-animal-welfare-in-china
#8
(no author information available yet)
No abstract text is available yet for this article.
April 22, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28430678/laboratory-animal-bite-anaphylaxis-a-national-survey-part-1-case-series-and-review-of-the-literature
#9
Gregg M Stave, Edward H Lee, Dennis J Darcey
OBJECTIVE: This study documents previously unreported cases of laboratory animal bite anaphylaxis in animal laboratory facilities in the United States. METHODS: An online survey was e-mailed to designated institutional officials at laboratory animal facilities identified by the National Institutes of Health Office of Laboratory Animal Welfare. RESULTS: One hundred ninety eight organizations responded and 15 organizations indicated that workers had experienced anaphylaxis following an animal bite...
April 20, 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28429644/a-systematic-review-of-discomfort-due-to-toe-or-ear-clipping-in-laboratory-rodents
#10
Kimberley E Wever, Florentine J Geessink, Michelle A E Brouwer, Alice Tillema, Merel Ritskes-Hoitinga
Toe clipping and ear clipping (also ear notching or ear punching) are frequently used methods for individual identification of laboratory rodents. These procedures potentially cause severe discomfort, which can reduce animal welfare and distort experimental results. However, no systematic summary of the evidence on this topic currently exists. We conducted a systematic review of the evidence for discomfort due to toe or ear clipping in rodents. The review methodology was pre-specified in a registered review protocol...
January 1, 2017: Laboratory Animals
https://www.readbyqxmd.com/read/28429311/improving-animal-welfare-using-continuous-nalbuphine-infusion-in-a-long-term-rat-model-of-sepsis
#11
Victor Jeger, Mattia Arrigo, Florian F Hildenbrand, Daniel Müller, Paulin Jirkof, Till Hauffe, Burkhardt Seifert, Margarete Arras, Donat R Spahn, Dominique Bettex, Alain Rudiger
BACKGROUND: Sepsis research relies on animal models to investigate the mechanisms of the dysregulated host response to infection. Animal welfare concerns request the use of potent analgesics for the Refinement of existing sepsis models, according to the 3Rs principle. Nevertheless, adequate analgesia is often missing, partly because the effects of analgesics in this particular condition are unknown. We evaluated the use of nalbuphine, an opioid with kappa agonistic and mu antagonistic effects, in rats with and without experimental sepsis...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28423871/behavioral-characteristics-of-hanwoo-bos-taurus-coreanae-steers-at-different-growth-stages-and-seasons
#12
Na Yeon Kim, Seong Jin Kim, Se Young Jang, Mi Rae Oh, Yu Jiao Tang, Hye Jin Seong, Yeong Sik Yun, Sang Ho Moon
The purpose of this research was to analyze behavioral characteristics of Hanwoo (Bos taurus coreanae) steers for each season and growth stage to enable measurement of animal welfare level for precision livestock farming. A hundred-eight beef steers were divided into three equal groups at a Hanwoo farm according to their growth stage: growing stage (GS), 8months; early-fattening stage (EFS), 19months; and late-fattening stage (LFS), 30months. Twelve behavioral categories were continuously recorded for 13day-time hours in each four seasons with three replications...
April 19, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28422994/the-sheep-grimace-scale-as-an-indicator-of-post-operative-distress-and-pain-in-laboratory-sheep
#13
C Häger, S Biernot, M Buettner, S Glage, L M Keubler, N Held, E M Bleich, K Otto, C W Müller, S Decker, S R Talbot, A Bleich
The EU Directive 2010/63/EU changed the requirements regarding the use of laboratory animals and raised important issues related to assessing the severity of all procedures undertaken on laboratory animals. However, quantifiable parameters to assess severity are rare, and improved assessment strategies need to be developed. Hence, a Sheep Grimace Scale (SGS) was herein established by observing and interpreting sheep facial expressions as a consequence of pain and distress following unilateral tibia osteotomy...
2017: PloS One
https://www.readbyqxmd.com/read/28420423/a-comprehensive-evaluation-of-an-elisa-for-the-diagnosis-of-the-two-most-common-ascarids-in-chickens-using-plasma-or-egg-yolks
#14
Gürbüz Daş, Mark Hennies, Birgit Sohnrey, Shayan Rahimian, Kalyakorn Wongrak, Manuel Stehr, Matthias Gauly
BACKGROUND: Classical faecal egg counts (FEC) provide less reliable diagnostic information for nematode infections in chickens. We developed an ELISA based on Ascaridia galli antigens and tested two hypotheses, as follows: (i) IgY antibodies developed against A. galli will also be useful to identify Heterakis gallinarum infections, and (ii) circulating antibodies stored in egg yolks are as good as plasma samples, so a non-invasive diagnosis is possible. The aim of this study, therefore, was to compare the diagnostic accuracy of the ELISA system with FEC, using both plasma and egg yolks from experimentally infected hens...
April 18, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28419361/effect-of-electrical-stunning-frequency-and-current-waveform-in-poultry-welfare-and-meat-quality
#15
T S Siqueira, T D Borges, R M M Rocha, P T Figueira, F B Luciano, R E F Macedo
This study aimed to evaluate the effects of different stunning frequencies and electrical current waveforms on chicken welfare and meat quality. Two-hundred-thirty-two Cobb broilers, 48 d of age and 2.76 ± 0.47 live-weight, were randomly assigned into 4 stunning treatments - 2 frequencies (300 Hz and 650 Hz) and 2 current waveforms (direct current [DC] and alternating current [AC]). Broilers were electrically stunned in a water bath in a commercial slaughterhouse (70 V, 100 mA). The electronarcosis and stunning efficiency were confirmed by assessment of visual parameters (absence of rhythmic breathing, ocular reflex, and coordinated wing flapping) and blood parameters (lactate, glucose, creatine kinase, sodium, and potassium), which were measured after bleeding...
April 17, 2017: Poultry Science
https://www.readbyqxmd.com/read/28416039/pig-cognitive-bias-affects-the-conversion-of-muscle-into-meat-by-antioxidant-and-autophagy-mechanisms
#16
Y Potes, M Oliván, A Rubio-González, B de Luxán-Delgado, F Díaz, V Sierra, L Arroyo, R Peña, A Bassols, J González, R Carreras, A Velarde, M Muñoz-Torres, A Coto-Montes
Slaughter is a crucial step in the meat production chain that could induce psychological stress on each animal, resulting in a physiological response that can differ among individuals. The aim of this study was to investigate the relationship between an animal's emotional state, the subsequent psychological stress at slaughter and the cellular damage as an effect. In all, 36 entire male pigs were reared at an experimental farm and a cognitive bias test was used to classify them into positive bias (PB) or negative bias (NB) groups depending on their decision-making capabilities...
April 18, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28414723/prevalence-and-determinants-of-stereotypic-behaviours-and-physiological-stress-among-tigers-and-leopards-in-indian-zoos
#17
Janice Vaz, Edward J Narayan, R Dileep Kumar, K Thenmozhi, Krishnamoorthy Thiyagesan, Nagarajan Baskaran
India's charismatic wildlife species are facing immense pressure from anthropogenic-induced environmental perturbations. Zoos play a major role in the conservation of threatened species, but their adaptation in captivity is posing a major challenge globally. Stress from inadequate adaptation could lead to suppression of cognitive functioning and increased display of stereotypic behaviour. It is thus necessary to measure biological traits like behaviour, stress physiology, and contextual factors driving the animals maintained at zoos...
2017: PloS One
https://www.readbyqxmd.com/read/28413046/heat-stress-decreases-expression-of-the-cytokines-avian-%C3%AE-defensins-4-and-6-and-toll-like-receptor-2-in-broiler-chickens-infected-with-salmonella-enteritidis
#18
W M Quinteiro-Filho, A S Calefi, D S G Cruz, T P A Aloia, A Zager, C S Astolfi-Ferreira, J A Piantino Ferreira, S Sharif, J Palermo-Neto
A high ambient temperature is a highly relevant stressor in poultry production. Heat stress (HS) has been reported to reduce animal welfare, performance indices and increase Salmonella susceptibility. Salmonella spp. are major zoonotic pathogen that cause over 1 billion of human infections worldwide annually. Therefore, the current study was designed to analyze the effect of heat stress on Salmonella infection in chickens through modulation of the immune responses. Salmonella Enteritidis was inoculated via gavage at one day of age (10(6)cfu/mL)...
April 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28412281/assessing-the-exploratory-and-anxiety-related-behaviors-of-mice-do-different-caging-systems-affect-the-outcome-of-behavioral-tests
#19
Alexia Polissidis, Sofia Zelelak, Maria Nikita, Pavlos Alexakos, Marianna Stasinopoulou, Zacharias-Ioannis Kakazanis, Nikolaos Kostomitsopoulos
Ample studies have shown that housing can affect the health, welfare and behavior of mice and therefore, the outcomes of certain experiments. The aim of this study was to investigate if three widely used housing systems, Open Top Cages (OTC), Motor Free Ventilated Cages (MFVC) and Individually Ventilated Cages (IVC) may affect exploratory and anxiety-related behaviors in mice. Subjects were 8week-old male C57Bl/6J mice (n=36) divided into three groups, OTC, IVC and MFVC groups, respectively. The experimental procedure consisted of two behavioral tests: the open field and the elevated plus maze test...
April 13, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28409527/animal-welfare-officers-in-australian-higher-education-3r-application-work-contexts-and-risk-perception
#20
Peter J Chen
Acceptance of the concept of replacement, refinement, and reduction (the 3Rs) and the need for their implementation is widespread in the research community, and is also backed by local governance requirements in many key jurisdictions. Yet concerns about underutilization of these concepts and practices remain. From a survey of animal welfare officers (AWOs) in Australia, the attitudes to, and the adoption of, 3Rs in Australian public universities is explored. The survey finds that Australian AWOs have considerable concerns about 3R uptake, with 44% agreeing that '3R possibilities often remain unused'...
January 1, 2017: Laboratory Animals
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