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https://www.readbyqxmd.com/read/29452854/assessment-of-the-temperature-cut-off-point-by-a-commercial-intravaginal-device-to-predict-parturition-in-piedmontese-beef-cows
#1
A Ricci, V Racioppi, B Iotti, A Bertero, K F Reed, O B Pascottini, L Vincenti
Dystocic parturitions have an adverse impact on animal productivity and therefore the profitability of the farm. In this regard, accurate prediction of calving is essential since it allows for efficient and prompt assistance of the dam and the calf. Numerous approaches to predict parturition have been studied, among these, measurement of intravaginal temperature (IVT) is the most effective method at the field level. Thus, objectives of this experiment were, 1) to find an IVT cut-off to predict calving within 24 h, and 2) to clarify the use of IVT as an automated method of calving detection in housed beef cows...
February 10, 2018: Theriogenology
https://www.readbyqxmd.com/read/29451878/control-fast-or-control-smart-when-should-invading-pathogens-be-controlled
#2
Robin N Thompson, Christopher A Gilligan, Nik J Cunniffe
The intuitive response to an invading pathogen is to start disease management as rapidly as possible, since this would be expected to minimise the future impacts of disease. However, since more spread data become available as an outbreak unfolds, processes underpinning pathogen transmission can almost always be characterised more precisely later in epidemics. This allows the future progression of any outbreak to be forecast more accurately, and so enables control interventions to be targeted more precisely...
February 16, 2018: PLoS Computational Biology
https://www.readbyqxmd.com/read/29451115/understanding-the-complexities-of-food-safety-using-a-one-health-approach
#3
Kalmia E Kniel, Deepak Kumar, Siddhartha Thakur
The philosophy of One Health is growing in concept and clarity. The interdependence of human, animal, and environmental health is the basis for the concept of One Health. One Health is a comprehensive approach to ensure the health of people, animals, and the environment through collaborative efforts. Preharvest food safety issues align with the grand concept of One Health. Imagine any food production system, and immediately, parallel images from One Health emerge: for example, transmission of zoonotic diseases, antibiotic residues, or resistance genes in the environment; environmental and animal host reservoirs of disease; challenges with rearing animals and growing fresh produce on the same farm; application and transport of manure or diseased animals...
February 2018: Microbiology Spectrum
https://www.readbyqxmd.com/read/29450980/prediction-of-enteric-methane-production-yield-and-intensity-in-dairy-cattle-using-an-intercontinental-database
#4
Mutian Niu, Ermias Kebreab, Alexander N Hristov, Joonpyo Oh, Claudia Arndt, André Bannink, Ali R Bayat, André F Brito, Tommy Boland, David Casper, Les A Crompton, Jan Dijkstra, Maguy A Eugène, Phil C Garnsworthy, Md Najmul Haque, Anne L F Hellwing, Pekka Huhtanen, Michael Kreuzer, Bjoern Kuhla, Peter Lund, Jørgen Madsen, Cécile Martin, Shelby C McClelland, Mark McGee, Peter J Moate, Stefan Muetzel, Camila Muñoz, Padraig O'Kiely, Nico Peiren, Christopher K Reynolds, Angela Schwarm, Kevin J Shingfield, Tonje M Storlien, Martin R Weisbjerg, David R Yáñez-Ruiz, Zhongtang Yu
Enteric methane (CH 4 ) production from cattle contributes to global greenhouse gas emissions. Measurement of enteric CH 4 is complex, expensive and impractical at large scales; therefore, models are commonly used to predict CH 4 production. However, building robust prediction models requires extensive data from animals under different management systems worldwide. The objectives of this study were to (1) collate a global database of enteric CH 4 production from individual lactating dairy cattle; (2) determine the availability of key variables for predicting enteric CH 4 production (g/d per cow), yield [g/kg dry matter intake (DMI)], and intensity (g/kg energy corrected milk) and their respective relationships; (3) develop intercontinental and regional models and cross-validate their performance; and (4) assess the trade-off between availability of on-farm inputs and CH 4 prediction accuracy...
February 16, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29446704/effect-of-sodium-molybdate-supplementation-on-high-concentrations-of-cu-in-liver-of-yearling-bulls
#5
E L Cuttance, R A Laven, A Watts
AIM: To determine the impact of sodium molybdate treatment, given weekly, on concentrations of Cu in liver, activity of liver enzymes, and weight gain over 4 weeks, in yearling bulls with elevated concentrations of Cu in liver. METHODS: The study was carried on two commercial grazing farms in the Otago region of New Zealand in yearling Friesian bulls (n=150 on Farm A and n=49 on Farm B) with mean concentration of Cu in liver >3,000µmol/kg fresh weight. On Day 0, all animals were weighed and half were systematically allocated to treatment with sodium molybdate (3 mg/kg liveweight on Farm A and 7 mg/kg liveweight on Farm B); the remainder received no treatment (Control)...
February 15, 2018: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/29446153/eating-fish-and-farm-life-reduce-allergic-rhinitis-at-the-age-of-twelve
#6
Styliana Vasileiadou, Göran Wennergren, Frida Strömberg Celind, Nils Åberg, Rolf Pettersson, Bernt Alm, Emma Goksör
BACKGROUND: The prevalence of allergic rhinitis has increased, but the cause of this rise is partly unknown. Our aim was to analyse the prevalence, risk factors and protective factors for allergic rhinitis in 12-year-old Swedish children. METHODS: Data were collected from a prospective, longitudinal cohort study of children born in western Sweden in 2003. The parents answered questionnaires when the children were six months to 12 years. The response rate at 12 years was 76% (3,637/4,777) of the questionnaires distributed...
February 15, 2018: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/29445929/prevalence-of-leptospira-serogroup-specific-antibodies-in-cattle-associated-with-reproductive-problems-in-endemic-states-of-india
#7
Vinayagamurthy Balamurugan, Anusha Alamuri, K Bharathkumar, Sharanagouda Siddanagouda Patil, Gurrappa Naidu Govindaraj, Mohandoss Nagalingam, Paramanandham Krishnamoorthy, Habibur Rahman, Bibek Ranjan Shome
In this study, the seroprevalence and distribution of Leptospira in dairy cattle in endemic states of India were investigated in association with reproductive problems of the cattle. A total of 373 cattle serum samples from 45 farms in Maharashtra, Gujarat, Andhra Pradesh, Telangana, Karnataka, Tamil Nadu, Punjab, Haryana, Chhattisgarh, Sikkim and Uttarakhand states were collected from animals with a history of reproductive disorders like abortion, repeat breeding, anoestrus and endometritis, and also from apparently healthy animals...
February 14, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29445014/effect-of-on-farm-interventions-in-the-aftermath-of-an-outbreak-of-hypervirulent-verocytotoxin-producing-escherichia-coli-o157-h7-in-sweden
#8
Lena-Mari Tamminen, Helena Fransson, Madeleine Tråvén, Anna Aspán, Stefan Alenius, Ulf Emanuelson, Ilmars Dreimanis, Mats Törnquist, Erik Eriksson
In 2007, human infections with a hypervirulent strain of verocytotoxin-producing Escherichia coli O157:H7 increased in Sweden and especially in the Halland County. A connection between the cases and a local beef cattle farm with an on-farm abattoir and meat processing plant was established. In this observational study the control measures implemented on the infected farm and the dynamics of infection in the herd are described. In May 2008, when measures were initiated and animals put to pasture, the prevalence of positive individuals was 40 per cent and 18 carcasses out of 24 slaughtered animals were contaminated...
February 14, 2018: Veterinary Record
https://www.readbyqxmd.com/read/29444319/beneficial-effects-of-water-soluble-chestnut-castanea-sativa-mill-tannin-extract-on-chicken-small-intestinal-epithelial-cell-culture
#9
M Brus, L Gradišnik, M Trapecar, D Škorjanc, R Frangež
Feed and water supplementation with powdered hydrolyzable tannins from chestnut represents a valuable alternative strategy to antibiotics in animal nutrition. In this study, we evaluated the effects and safety of a water-soluble form of chestnut tannin (WST) in an in vitro model of chicken small intestinal epithelial cells (CSIEC). A chicken cell culture was established, and WST in concentrations of 0.025, 0.05, 0.1, and 0.2% were tested for cytotoxicity, cell proliferation, metabolic activity, production of reactive oxygen species, intracellular antioxidative potential, genotoxicity, and influence on the epithelia cell cycle...
February 12, 2018: Poultry Science
https://www.readbyqxmd.com/read/29444101/development-and-characterization-of-two-cell-lines-from-gills-of-atlantic-salmon
#10
Mona C Gjessing, Maria Aamelfot, William N Batts, Sylvie L Benestad, Ole B Dale, Even Thoen, Simon C Weli, James R Winton
Gill disease in Atlantic salmon, Salmo salar L., causes big losses in the salmon farming industry. Until now, tools to cultivate microorganisms causing gill disease and models to study the gill responses have been lacking. Here we describe the establishment and characterization of two cell lines from the gills of Atlantic salmon. Atlantic salmon gill cell ASG-10 consisted of cells staining for cytokeratin and e-cadherin and with desmosomes as seen by transmission electron microscopy suggesting the cells to be of epithelial origin...
2018: PloS One
https://www.readbyqxmd.com/read/29444092/the-impact-of-early-life-nutrition-and-housing-on-growth-and-reproduction-in-dairy-cattle
#11
G Curtis, C McGregor Argo, D Jones, D Grove-White
Contentious issues in calf rearing include milk feeding practices and single versus group housing. The current study was performed on a high producing 170 Holstein cow dairy farm, to investigate the impact of nutrition and housing on growth and reproduction. Heifer calves (n = 100) were allocated in birth order to one of two commonly used management strategies. All calves received 3-4 litres of dam specific colostrum within 6 hours of birth. Group A calves were group housed from birth and fed milk replacer (MR) ad libitum via a computerised machine utilising a single teat, with weaning commencing at 63 days of age...
2018: PloS One
https://www.readbyqxmd.com/read/29440276/accurate-depth-of-radiofrequency-induced-lesions-in-renal-sympathetic-denervation-based-on-a-fine-histological-sectioning-approach-in-a-porcine-model
#12
Atsushi Sakaoka, Hisako Terao, Shintaro Nakamura, Hitomi Hagiwara, Toshihito Furukawa, Kiyoshi Matsumura, Kenichi Sakakura
BACKGROUND: Ablation lesion depth caused by radiofrequency-based renal denervation (RDN) was limited to <4 mm in previous animal studies, suggesting that radiofrequency-RDN cannot ablate a substantial percentage of renal sympathetic nerves. We aimed to define the true lesion depth achieved with radiofrequency-RDN using a fine sectioning method and to investigate biophysical parameters that could predict lesion depth. METHODS AND RESULTS: Radiofrequency was delivered to 87 sites in 14 renal arteries from 9 farm pigs at various ablation settings: 2, 4, 6, and 9 W for 60 seconds and 6 W for 120 seconds...
February 2018: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29439741/antibiotic-mediated-changes-in-the-fecal-microbiome-of-broiler-chickens-define-the-incidence-of-antibiotic-resistance-genes
#13
Wenguang Xiong, Yulin Wang, Yongxue Sun, Liping Ma, Qinglin Zeng, Xiaotao Jiang, Andong Li, Zhenling Zeng, Tong Zhang
BACKGROUND: Antimicrobial agents have been widely used in animal farms to prevent and treat animal diseases and to promote growth. Antimicrobial agents may change the bacterial community and enhance the resistome in animal feces. We used metagenome-wide analysis to investigate the changes in bacterial community, variations in antibiotic resistance genes (ARGs), and their bacterial hosts in the feces of broiler chickens over a full-treatment course of chlortetracycline at low and therapeutic dose levels...
February 13, 2018: Microbiome
https://www.readbyqxmd.com/read/29438928/trees-are-all-around-us-farmers-management-of-wood-pastures-in-the-light-of-a-controversial-policy
#14
Mattias Sandberg, Simon Jakobsson
Wood pastures are some of the most species-rich environments found in Europe and therefore essential habitats for biodiversity conservation. Society also puts faith in multiple values of trees, ranging from climate change mitigation to socio-cultural traditions. Therefore, the seemingly arbitrary tree density limit for pasture environments imposed by the EU through its Common Agricultural Policy (CAP) threatened both biological and societal values. In this study on farmers' perspectives, we target the effects of the CAP tree density limit on management of wood pastures in a low-intensively managed agricultural landscape of southern Sweden...
February 10, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29435704/risk-factors-and-indicators-of-reduced-welfare-of-grazing-dairy-cows-from-selected-smallholder-dairy-farms-in-midlands-province-zimbabwe
#15
Z Matore, P Woods, S Kagler
Zimbabwe's smallholder dairying faces many challenges that affect the welfare of dairy cows; however, the status of this welfare has not yet been determined. A cross-sectional study was conducted in Midlands Province on 41 active smallholder dairy farms with 86 cows in winter and summer to determine the risk factors and indicators to impaired cow welfare. These objectives were achieved using farmer questionnaires and direct observations. Eleven percent of the observed cows were severely lame in summer while only 5% were severely lame in winter...
February 12, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29434116/bactericidal-and-virucidal-efficacies-of-potassium-monopersulfate-and-its-application-for-inactivating-avian-influenza-virus-on-virus-spiked-clothes
#16
Sorawot Sonthipet, Sakchai Ruenphet, Kazuaki Takehara
An acidic agent, potassium monopersulfate (PMPS), was evaluated for bactericidal and virucidal effects against Salmonella Infantis (SI), Escherichia coli, rifampicin-resistant Salmonella Infantis (SI-rif), Newcastle disease virus (NDV), and avian influenza virus (AIV), in the absence or presence of organic materials. In addition, inactivation activity toward a virus on virus-spiked clothes was also examined. PMPS could inactivate SI, E. coli, and SI-rif even in the presence of organic materials under various concentrations and exposure/contact time conditions...
February 12, 2018: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29432430/different-physiological-stages-and-breeding-systems-related-to-the-variability-of-meat-quality-of-indigenous-pantaneiro-sheep
#17
Jéssica de Oliveira Monteschio, Poliana Campos Burin, Ariadne Patricia Leonardo, Daiane Aparecido Fausto, Adrielly Lais Alves da Silva, Hélio de Almeida Ricardo, Marcelo Corrêa da Silva, Márcio Rodrigues de Souza, Fernando Miranda de Vargas Junior
This study configures a first report regarding the variability of meat quality of locally adapted Pantaneiro sheep depending on different physiological stages and breeding systems. Pantaneiro sheep are raised in Brazil under a tropical wetland ecosystem denominated Pantanal. Twenty-nine Pantaneiro sheep from different sex and physiological stages were sorted into three groups, simulating three of the most representative ovine meat products commercialized by South American industries: a) non castrated male lambs (n = 11); b) wethers (n = 9); c) cull ewes (n = 9)...
2018: PloS One
https://www.readbyqxmd.com/read/29429741/the-nematophagous-fungus-duddingtonia-flagrans-reduces-the-gastrointestinal-parasitic-nematode-larvae-population-in-faeces-of-orally-treated-calves-maintained-under-tropical-conditions-dose-response-assessment
#18
Pedro Mendoza-de-Gives, María Eugenia López-Arellano, Liliana Aguilar-Marcelino, Sara Olazarán-Jenkins, David Reyes-Guerrero, Gabriel Ramírez-Várgas, Vicente E Vega-Murillo
This research was performed to assess the Duddingtonia flagrans chlamydospore dose/response administered in gastrointestinal parasitic nematode (GIN) naturally infected calves and its effect in reducing the GIN infective larvae (L3) population in faeces in a cattle farm in the Mexican tropics. This study was carried out at the experimental research station "Las Margaritas" in Hueytamalco Municipality, Puebla State, Mexico. Forty zebu calves, between 6 to 12 months of age were randomly distributed into four groups of ten calves each...
January 31, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29428744/short-communication-cow-and-herd-level-prevalence-of-hypoglycemia-in-hyperketonemic-postpartum-dairy-cows
#19
J Dubuc, S Buczinski
The objective of this study was to quantify the prevalence of hypoglycemia in hyperketonemic dairy cows during the early postpartum period. A prospective observational study was conducted in 100 dairy herds selected by convenience. Within all participating herds, 40 cows (or the entire herd if smaller than 40 cows) were enrolled in the study (total of 3,776 enrolled cows). Herds were visited every 2 wk by an animal health technician. Cows were bled from their coccygeal vessels once between 1 and 14 d in milk, and cow-side testing was performed for ketonemia and glycemia using a device validated in cattle (Precision Xtra, Abbott, Mississauga, ON, Canada)...
February 7, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29427764/identification-and-characterization-of-plasmid-mediated-quinolone-resistance-determinants-in-enterobacteriaceae-isolated-from-healthy-poultry-in-brazil
#20
Joseane Cristina Ferreira, Rafael Antonio Casarin Penha Filho, Ana Paula Yorika Kuaye, Leonardo Neves Andrade, Angelo Berchieri Junior, Ana Lúcia Costa Darini
The expression of plasmid-mediated quinolone resistance (PMQR) genes confers low-level quinolone and fluoroquinolones resistance alone. However, the association to chromosomal resistance mechanisms determines an expressively higher resistance in Enterobacteriaceae. These mechanisms are horizontally disseminated within plasmids and have contributed to the emergence of bacteria with reduced susceptibility or resistant to therapies worldwide. The epidemiological characterization of PMQR dissemination is highly relevant in the scientific and medical context, to investigate the dissemination within enterobacteria, from different populations, including humans and food-producing animals...
February 7, 2018: Infection, Genetics and Evolution
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