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https://www.readbyqxmd.com/read/29223873/molecular-characterization-and-expression-profiles-of-lpxrfa-at-the-brain-pituitary-gonad-axis-of-half-smooth-tongue-sole-cynoglossus-semilaevis-during-ovarian-maturation
#1
Bin Wang, Quan Liu, Xuezhou Liu, Yongjiang Xu, Bao Shi
Gonadotropin-inhibitory hormone (GnIH) has been characterized by its ability to inhibit either basal or gonadotropin-releasing hormone (GnRH)-induced gonadotropin synthesis and release in birds and mammals. However, the physiological role of GnIH on the reproductive axis in fish remains inconclusive, with most studies focusing on the orders Cypriniformes and Perciformes. To gain insight into the role of GnIH in the regulation of reproduction in the order Pleuronectiformes, we first cloned the LPXRFa gene, the piscine ortholog of GnIH, in the half-smooth tongue sole...
December 6, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29223739/domain-general-and-domain-specific-neural-changes-underlying-visual-expertise
#2
Farah Martens, Jessica Bulthé, Christine van Vliet, Hans Op de Beeck
Visual expertise induces changes in neural processing for many different domains of expertise. However, it is unclear how expertise effects for different domains of expertise are related. In the present fMRI study, we combine large-scale univariate and multi-voxel analyses to contrast the expertise-related neural changes associated with two different domains of expertise, bird expertise (ornithology) and mineral expertise (mineralogy). Results indicated distributed expertise-related neural changes, with effects for both domains of expertise in high-level visual cortex and effects for bird expertise even extending to low-level visual regions and the frontal lobe...
December 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/29223551/recent-advances-in-delivery-of-antifungal-agents-for-therapeutic-management-of-candidiasis
#3
REVIEW
Bhakti Sawant, Tabassum Khan
Candidiasis is a fungal infection caused by yeasts that belong to the genus Candida. There are over twenty species of Candida yeasts that can cause infection in humans, the most common of which is Candida albicans. Candida yeasts normally reside in the intestinal tract and can be found on mucous membranes and skin without causing infection; however, overgrowth of these organisms can cause symptoms to develop. Presence of other diseases that compromises the patient's immunity makes it more difficult to treat...
December 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29223282/the-hypothalamic-pituitary-thyroid-axis-and-biological-rhythms-the-discovery-of-tsh-s-unexpected-role-using-animal-models
#4
REVIEW
Keisuke Ikegami, Takashi Yoshimura
Thyroid hormones (TH) are important for development, growth, and metabolism. It is also clear that the synthesis and secretion of TH are regulated by the hypothalamic-pituitary-thyroid (HPT) axis. Animal models have helped advance our understanding of the roles and regulatory mechanisms of TH. The animals' bodies develop through coordinated timing of cell division and differentiation. Studies of frog metamorphosis led to the discovery of TH and their role in development. However, to adapt to rhythmic environmental changes, animals also developed various endocrine rhythms...
October 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29223107/recreation-economics-to-inform-migratory-species-conservation-case-study-of-the-northern-pintail
#5
Brady J Mattsson, James A Dubovsky, Wayne E Thogmartin, Kenneth J Bagstad, Joshua H Goldstein, John B Loomis, James E Diffendorfer, Darius J Semmens, Ruscena Wiederholt, Laura López-Hoffman
Quantification of the economic value provided by migratory species can aid in targeting management efforts and funding to locations yielding the greatest benefits to society and species conservation. Here we illustrate a key step in this process by estimating hunting and birding values of the northern pintail (Anas acuta) within primary breeding and wintering habitats used during the species' annual migratory cycle in North America. We used published information on user expenditures and net economic values (consumer surplus) for recreational viewing and hunting to determine the economic value of pintail-based recreation in three primary breeding areas and two primary wintering areas...
December 6, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29223087/oxidative-stress-in-birds-along-a-nox-and-urbanisation-gradient-an-interspecific-approach
#6
Pablo Salmón, Emilie Stroh, Amparo Herrera-Dueñas, Maria von Post, Caroline Isaksson
Urbanisation is regarded as one of the most threatening global issues for wildlife, however, measuring its impact is not always straight forward. Oxidative stress physiology has been suggested to be a useful biomarker of health and therefore, a potentially important indicator of the impact that urban environmental stressors, especially air pollution, can have on wildlife. For example, nitrogen oxides (NOx), released during incomplete combustion of fossil fuels, are highly potent pro-oxidants, thus predicted to affect either the protective antioxidants and/or cause oxidative damage to bio-molecules...
December 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29222145/what-role-does-diet-play-in-the-decline-of-puffins
#7
Eleanor Taylor
Eleanor Taylor explains how bird lovers are helping conservation charity RSPB understand puffin populations.
December 2017: Veterinary Record
https://www.readbyqxmd.com/read/29221852/captive-bred-neotropical-birds-diagnosed-with-cryptosporidium-avian-genotype-iii
#8
Ricardo Silva Novaes, Marcus Sandes Pires, Adriana Pittella Sudré, Teresa Cristina Bergamo do Bomfim
Currently, there are only three valid species of Cryptosporidium infecting avian hosts, namely, Cryptosporidium meleagridis, Cryptosporidium baileyi, and Cryptosporidium galli, in addition to 13 genotypes of unknown species status, such as Avian genotypes I-VI, the black duck genotype, the Eurasian woodcock genotype, and goose genotypes I-V. The objectives of this study were to microscopically diagnose the presence of Cryptosporidium in birds from a commercial aviary located in Rio de Janeiro, Brazil; genotypically characterize species and/or genotypes of genus Cryptosporidum; and conduct sequencing and phylogenetic analyses to compare the obtained DNA sequences with those deposited in GenBank...
December 5, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29220405/maaqwi-cascadensis-a-large-marine-diving-bird-avialae-ornithurae-from-the-upper-cretaceous-of-british-columbia-canada
#9
Sandy M S McLachlan, Gary W Kaiser, Nicholas R Longrich
Mesozoic bird fossils from the Pacific Coast of North America are rare, but small numbers are known from the Late Cretaceous aged sediments of Hornby Island, British Columbia. Most are unassociated fragments that offer little information, but additional preparation of a large coracoid has revealed more details of its structure, as well as three associated wing bones. Phylogenetic analysis suggests that Maaqwi cascadensis, gen. et sp. nov. represents a derived crown or near-crown member of Ornithurae, and specifically suggests affinities with Vegaviidae...
2017: PloS One
https://www.readbyqxmd.com/read/29219378/lattice-model-to-derive-the-fluctuating-hydrodynamics-of-active-particles-with-inertia
#10
A Manacorda, A Puglisi
We derive the hydrodynamic equations with fluctuating currents for the density, momentum, and energy fields for an active system in the dilute limit. In our model, nonoverdamped self-propelled particles (such as grains or birds) move on a lattice, interacting by means of aligning dissipative forces and excluded volume repulsion. Our macroscopic equations, in a specific case, reproduce a transition line from a disordered phase to a swarming phase and a linear dispersion law accounting for underdamped wave propagation...
November 17, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29218952/-research-strategies-for-feed-additives-and-veterinary-medicines-from-side-products-of-chinese-medicine-resources-industrialization
#11
Ming Zhao, Jin-Ao Duan, Sen Zhang, Sheng Guo, Shu-Lan Su, Qi-Nan Wu, Yu-Ping Tang, Jian-Guo Zeng
The global antimicrobial resistance has been a big challenge to the human health for years. It has to make balance between the safety of animal products and the use of antimicrobials in animal husbandry. Any methods that can minimize or even phase out the use of antimicrobials in animal husbandry should be encouraged. We herein describe the research strategies for feed additives and veterinary medicines from the side products of Chinese medicine resources industrialization. Killing two birds with one stone-besides the major purposes, the rational utilization of non-medicinal parts and wastes of industrialization of Chinese herbal medicines is also achieved under the proposed strategies...
September 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29218742/prevalence-of-foot-disorders-in-captive-sardinian-partridges-alectoris-barbara-barbara-bonnaterre-1790-as-useful-indicators-of-fitness-to-natural-environment
#12
M G Cappai, A Abd El-Wahab, G Arru, M Muzzeddu, W Pinna
Foot health represents an issue in wild avifauna breeding practices. In particular, prevalence of digital ulceration (DU) and foot pad dermatitis (FPD) are valid indicators of welfare in wildlife conservation centres and may be interpreted as to fitness for bird's reintroduction into the wild. This study meant to test the effects of raising practices on foot pad health in captive Sardinian partridges (Alectoris barbara barbara Bonnaterre, 1790) reared for biodiversity conservation, to assess welfare and fitness to reintroduction into nature...
December 8, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29218741/a-test-of-the-substitution-habitat-hypothesis-in-amphibians
#13
Alejandro Martínez-Abraín, Pedro Galán
Most examples that support the substitution-habitat hypothesis (human-made habitats act as substitutes of original habitat) deal with birds and mammals. We tested this hypothesis in 14 amphibians by using percentage occupancy as a proxy of habitat quality (i.e., higher occupancy percentages indicate higher quality). We classified water body types as original habitat (no or little human influence) depending on anatomical, behavioral, or physiological adaptations of each amphibian species. Ten species had relatively high probabilities (0...
December 8, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/29218330/interactive-effects-of-parental-age-on-offspring-fitness-and-age-assortative-mating-in-a-wild-bird
#14
E Keith Bowers, Scott K Sakaluk, Charles F Thompson
Variation in parental age can have important consequences for offspring fitness and the structure of populations and disease transmission. However, our understanding of the effects of parental age on offspring in natural populations is limited. Here, we investigate consequences of parental age for offspring fitness and test for age-assortative mating in a short-lived bird, the house wren (Troglodytes aedon). Offspring immunoresponsiveness increased with maternal age and decreased with paternal age, but the strength of these effects varied with the age of one's mate...
June 2017: Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology
https://www.readbyqxmd.com/read/29217325/protocatechuic-acid-pca-induced-a-better-antiviral-effect-by-immune-enhancement-in-spf-chickens
#15
Yongxia Guo, Qiang Zhang, Zonghui Zuo, Jun Chu, Hongzhi Xiao, M Tariq Javed, Cheng He
Protocatechuic acid (PCA) is an antiviral agent against Avian Influenza virus (AIV) and Infectious Bursal Disease (IBD) virus but its antiviral mechanism is unknown. In this study, we evaluated the humoral and cellular responses to PCA in specific pathogen-free (SPF) chickens. One hundred forty 35-day-old SPF chickens were randomly divided into 7 groups. The birds were inoculated with the commercial, attenuated Newcastle Disease Virus (NDV) vaccine and then received orally with 10, 20 or 40 mg/kg body weight of PCA for 21 days...
December 4, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29216533/assessing-the-zoonotic-potential-of-arboviruses-of-african-origin
#16
REVIEW
Marietjie Venter
Several African arboviruses have emerged over the past decade in new regions where they caused major outbreaks in humans and/or animals including West Nile virus, Chikungunya virus and Zika virus. This raise questions regarding the importance of less known zoonotic arboviruses in local epidemics in Africa and their potential to emerge internationally. Syndromic surveillance in animals may serve as an early warning system to detect zoonotic arbovirus outbreaks. Rift Valley fever and Wesselsbronvirus are for example associated with abortion storms in livestock while West Nile-virus, Shuni virus and Middelburg virus causes neurological disease outbreaks in horses and other animals...
December 4, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/29216256/dna-methylation-levels-in-candidate-genes-associated-with-chronological-age-in-mammals-are-not-conserved-in-a-long-lived-seabird
#17
Ricardo De Paoli-Iseppi, Andrea M Polanowski, Clive McMahon, Bruce E Deagle, Joanne L Dickinson, Mark A Hindell, Simon N Jarman
Most seabirds do not have any outward identifiers of their chronological age, so estimation of seabird population age structure generally requires expensive, long-term banding studies. We investigated the potential to use a molecular age biomarker to estimate age in short-tailed shearwaters (Ardenna tenuirostris). We quantified DNA methylation in several A. tenuirostris genes that have shown age-related methylation changes in mammals. In birds ranging from chicks to 21 years of age, bisulphite treated blood and feather DNA was sequenced and methylation levels analysed in 67 CpG sites in 13 target gene regions...
2017: PloS One
https://www.readbyqxmd.com/read/29214857/feeding-time-can-alleviate-negative-effects-of-heat-stress-on-performance-meat-quality-and-health-status-of-turkey
#18
M F A Farghly, M Alagawany, M E Abd El-Hack
1. A total of 180 one-day-old chickens were randomly assigned to 6 equal groups to investigate the effect of feeding time on growth performance, carcass characteristics, meat quality, leg problems and physiological responses of growing turkeys under the high temperature conditions of summer. 2. Birds of the first group were ad libitum fed and were considered as the controls (C). The second group (T1) was given 80% of diet in the morning and 20% of diet in the afternoon, The third group (T2) was given 60% of diet in the morning and 40% of diet in the afternoon, The fourth group (T3) was given 40% of diet in the morning and 60% of diet in the afternoon, The fifth group (T4) was given 20% of diet in the morning and 80% of diet in the afternoon and the sixth group (T5) was given 100% of diet in the afternoon...
December 7, 2017: British Poultry Science
https://www.readbyqxmd.com/read/29214706/growth-performance-carcass-traits-and-meat-quality-of-yellow-feathered-broilers-fed-graded-levels-of-alfalfa-meal-with-or-without-wheat
#19
Shouqun Jiang, Zhongyong Gou, Long Li, Xiajing Lin, Zongyong Jiang
The effects of 0, 40 and 80 g/kg alfalfa meal on growth performance, carcass traits and meat quality of Chinese yellow-feathered broilers fed diets containing or lacking wheat (0 or 200 g/kg) as part of the energy source, were examined using random design with a 2 × 3 factorial arrangement of treatments. Dressing percentage and semi-eviscerated proportion were lower, and meat color a* (redness) value was higher in birds fed diets containing wheat than diets lacking wheat (P < 0.05). Drip loss was reduced by the addition of alfalfa meal to diets containing or lacking wheat (P < 0...
December 7, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29212749/treating-hummingbirds-as-feathered-bees-a-case-of-ethological-cross-pollination
#20
REVIEW
D J Pritchard, M C Tello Ramos, F Muth, S D Healy
Hummingbirds feed from hundreds of flowers every day. The properties of these flowers provide these birds with a wealth of information about colour, space and time to guide how they forage. To understand how hummingbirds might use this information, researchers have adapted established laboratory paradigms for use in the field. In recent years, however, experimental inspiration has come less from other birds, and more from looking at other nectar-feeders, particularly honeybees and bumblebees, which have been models for foraging behaviour and cognition for over a century...
December 2017: Biology Letters
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