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https://www.readbyqxmd.com/read/29223896/environmental-status-of-livestock-and-poultry-sectors-in-china-under-current-transformation-stage
#1
Yi Qian, Kaihui Song, Tao Hu, Tianyu Ying
Intensive animal husbandry had aroused great environmental concerns in many developed countries. However, some developing countries are still undergoing the environmental pollution from livestock and poultry sectors. Driven by the large demand, China has experienced a remarkable increase in dairy and meat production, especially in the transformation stage from conventional household breeding to large-scale industrial breeding. At the same time, a large amount of manure from the livestock and poultry sector is released into waterbodies and soil, causing eutrophication and soil degradation...
December 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29223308/what-we-have-lost-mastitis-resistance-in-holstein-friesians-and-in-a-local-cattle-breed
#2
Giulio Curone, Joel Filipe, Paola Cremonesi, Erminio Trevisi, Massimo Amadori, Claudia Pollera, Bianca Castiglioni, Lauretta Turin, Vittorio Tedde, Daniele Vigo, Paolo Moroni, Andrea Minuti, Valerio Bronzo, M Filippa Addis, Federica Riva
In Holstein Friesian dairy cows, selective pressure for increased milk production has led to a higher propensity to disease, including mastitis, when compared to less selected and lower producing dairy breeds. The biology underpinning the higher resistance to disease of such "local breeds" is not fully understood. With the aim of investigating the factors associated to this phenomenon, we applied a multidisciplinary approach to compare innate immune response patterns, metabolic parameters, milk protein profiles and the milk microbiota in Holstein Friesian and Rendena cows reared in the same farm and under the same management conditions...
November 29, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29222843/association-of-california-mastitis-test-scores-with-intramammary-infection-status-in-lactating-dairy-cows-admitted-to-a-veterinary-teaching-hospital
#3
S A Kandeel, D E Morin, C D Calloway, P D Constable
BACKGROUND: Subclinical mastitis is of concern in veterinary hospitals because contagious mastitis pathogens might be unknowingly transmitted to susceptible cows and then back to their farm of origin. OBJECTIVES: To evaluate the California mastitis test (CMT) as an indicator of intramammary infection (IMI) in lactating dairy cows admitted to a veterinary hospital. ANIMALS: A total of 139 admissions of 128 lactating dairy cows admitted to the University of Illinois Veterinary Teaching Hospital over a 2-year period...
December 9, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29222815/evaluation-and-comparison-of-2-on-farm-tests-for-estimating-somatic-cell-count-in-quarter-milk-samples-from-lactating-dairy-cattle
#4
S A Kandeel, A A Megahed, F K Arnaout, P D Constable
BACKGROUND: The somatic cell count (SCC) is commonly used to monitor udder health and diagnose subclinical intramammary infection (IMI) in dairy cattle. HYPOTHESIS: The Somaticell test (ST) and California mastitis test (CMT) are clinically useful cow-side tests for diagnosing subclinical IMI. ANIMALS: One hundred and eleven dairy cows at dry-off and 92 cows within 4-7 days postcalving. METHODS: Quarter foremilk samples were obtained and analyzed with a DeLaval cell counter (DCC, reference method), ST, and CMT...
December 9, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29222098/longitudinal-study-of-the-occurrence-persistence-and-contamination-routes-of-listeria-monocytogenes-genotypes-on-three-finnish-dairy-cattle-farms
#5
Hanna Castro, Anniina Jaakkonen, Marjaana Hakkinen, Hannu Korkeala, Miia Lindström
The molecular epidemiology of Listeria monocytogenes was investigated in a longitudinal study of three Finnish dairy farms during 2013 -- 2016. Totals of 186 bulk tank milk (BTM) samples, 224 milk filter socks (MFS), and 1702 samples of the barn environment were analyzed and isolates of L. monocytogenes were genotyped using pulsed-field gel electrophoresis. L. monocytogenes occurred throughout the year in all sample types, and the prevalence in MFS increased significantly during the indoor season. L. monocytogenes was more prevalent in MFS (29%) than in BTM samples (13%)...
December 8, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29221591/eradicating-bvd-reviewing-irish-programme-data-and-model-predictions-to-support-prospective-decision-making
#6
H-H Thulke, M Lange, J A Tratalos, T A Clegg, G McGrath, L O'Grady, P O'Sullivan, M L Doherty, D A Graham, S J More
Bovine Viral Diarrhoea is an infectious production disease of major importance in many cattle sectors of the world. The infection is predominantly transmitted by animal contact. Postnatal infections are transient, leading to immunologically protected cattle. However, for a certain window of pregnancy, in utero infection of the foetus results in persistently infected (PI) calves being the major risk of BVD spread, but also an efficient target for controlling the infection. There are two acknowledged strategies to identify PI animals for removal: tissue tag testing (direct; also known as the Swiss model) and serological screening (indirect by interpreting the serological status of the herd; the Scandinavian model)...
November 23, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/29218772/signals-for-identifying-cows-at-risk-of-subacute-ruminal-acidosis-in-dairy-veterinary-practice
#7
REVIEW
E Humer, J R Aschenbach, V Neubauer, I Kröger, R Khiaosa-Ard, W Baumgartner, Q Zebeli
Controlling rumen disorders is critical to ensure successful dairy herd health management. Lactation diets of dairy cows are commonly rich in concentrates and low in physically effective fibre. Feeding of these diets increases the risk of rumen disorders with far-reaching consequences for cattle health, welfare and sustainability of dairy production. The term subacute ruminal acidosis or SARA is often used as a synonym for poor rumen health. Being subclinical, SARA lacks of clear symptoms and is therefore difficult to diagnose and to control in the practice...
December 8, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29217829/genome-wide-genotyping-uncovers-genetic-profiles-and-history-of-the-russian-cattle-breeds
#8
Andrey Yurchenko, Nikolay Yudin, Ruslan Aitnazarov, Alexandra Plyusnina, Vladimir Brukhin, Vladimir Soloshenko, Bulat Lhasaranov, Ruslan Popov, Ivan A Paronyan, Kirill V Plemyashov, Denis M Larkin
One of the most economically important areas within the Russian agricultural sector is dairy and beef cattle farming contributing about $11 billion to the Russian economy annually. Trade connections, selection and breeding have resulted in the establishment of a number of breeds that are presumably adapted to local climatic conditions. Little however is known about the ancestry and history of Russian native cattle. To address this question, we genotyped 274 individuals from 18 breeds bred in Russia and compared them to 135 additional breeds from around the world that had been genotyped previously...
December 8, 2017: Heredity
https://www.readbyqxmd.com/read/29217378/serological-evidence-of-bovine-herpesvirus-1-bovine-viral-diarrhea-virus-and-schmallenberg-virus-infections-in-relation-to-reproductive-disorders-in-dairy-cattle-in-ethiopia
#9
Kassahun Asmare, Berhanu Sibhat, Gelagay Ayelet, Endrias Zewdu Gebremedhin, Kassaye Aragaw Lidete, Eystien Skjerve
Reproductive disorders in dairy cattle have been noted to be common in urban and peri-urban dairy production system in Ethiopia. The available reports on the causes of these disorders however, are not conclusive. A case-control study was designed to investigate the possible association of major reproductive disorders in dairy cattle with exposure status to bovine herpesvirus-1 (BHV-1), bovine viral diarrhea virus (BVDV) and Schmallenberg virus (SBV). Cows with history of abortion/stillbirth were considered as cases (n=204) while, those cows with no such history were taken as control (n=359)...
December 4, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29210523/activities-of-11-azaartemisinin-and-n-sulfonyl-derivatives-against-neospora-caninum-and-comparative-cytotoxicities
#10
Rozanne Harmse, Ho Ning Wong, Frans J Smit, Joachim Müller, Andrew Hemphill, David D N'Da, Richard K Haynes
Neosporosis caused by the apicomplexan parasite Neospora caninum is an economically important disease that induces abortion in dairy and beef cattle. There are no vaccines or drugs available on the market for control or treatment of the disease in bovines. The peroxide artemisinin and its derivatives used clinically for treatment of malaria are active against N. caninum and other apicomplexan parasites. We have now evaluated the activities of the readily accessible and chemically robust 11-azaartemisinin 5 and selected N-sulfonyl derivatives prepared as described in the accompanying paper against N...
December 6, 2017: ChemMedChem
https://www.readbyqxmd.com/read/29208586/mastitis-associated-with-mycobacterium-smegmatis-complex-members-in-a-swiss-dairy-cattle-herd-compost-bedding-material-as-a-possible-risk-factor
#11
G Ghielmetti, S Corti, U Friedel, E Hübschke, C Feusi, R Stephan
No abstract text is available yet for this article.
December 2017: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/29206855/linking-disease-epidemiology-and-livestock-productivity-the-case-of-bovine-respiratory-disease-in-france
#12
Alexis Delabouglise, Andrew James, Jean-François Valarcher, Sara Hagglünd, Didier Raboisson, Jonathan Rushton
Concerns are growing over the impact of livestock farming on environment and public health. The livestock industry is faced with the double constraint of limiting its use of natural resources and antimicrobials while ensuring its economic sustainability. In this context, reliable methods are needed to evaluate the effect of the prevention of endemic animal diseases on the productivity of livestock production systems. In this study, an epidemiological and productivity model was used to link changes in Bovine Respiratory Disease (BRD) incidence with the productivity of the beef and dairy cattle sectors in France...
2017: PloS One
https://www.readbyqxmd.com/read/29205858/foot-and-mouth-disease-virus-transmission-dynamics-and-persistence-in-a-herd-of-vaccinated-dairy-cattle-in-india
#13
S S Hayer, K VanderWaal, R Ranjan, J K Biswal, S Subramaniam, J K Mohapatra, G K Sharma, M Rout, B B Dash, B Das, B R Prusty, A K Sharma, C Stenfeldt, A Perez, A H Delgado, M K Sharma, L L Rodriguez, B Pattnaik, J Arzt
Foot-and-mouth disease (FMD) is an important transboundary disease with substantial economic impacts. Although between-herd transmission of the disease has been well studied, studies focusing on within-herd transmission using farm-level outbreak data are rare. The aim of this study was to estimate parameters associated with within-herd transmission, host physiological factors and FMD virus (FMDV) persistence using data collected from an outbreak that occurred at a large, organized dairy farm in India. Of 1,836 regularly vaccinated, adult dairy cattle, 222 had clinical signs of FMD over a 39-day period...
December 5, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29205193/molecular-characterization-of-locus-of-enterocyte-effacement-pathogenicity-island-in-shigatoxic-escherichia-coli-isolated-from-human-cattle-in-west-bengal-india
#14
Suresh Chandra Das, Thandavanaryanalu Ramamurthy, Santanu Ghosh, Gururaja Perumal Pazhani, Tista Sen, Raghubir Singh
BACKGROUND & OBJECTIVES: Shigatoxic Escherichia coli (STEC) recovered from dairy animals of Kolkata, India, harboured the putative virulence genes; however, the animals did not exhibit clinical symptoms. Similarly, human isolates in this locality also showed variations in degree of symptoms. Hence, this study was designed to know the presence of recognized gene(s) in the locus of enterocyte effacement (LEE) pathogenicity island in these STEC isolates and functional status of the cardinal gene (eae) related to pathogenicity...
July 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29203192/herd-level-monitoring-and-prevention-of-displaced-abomasum-in-dairy-cattle
#15
REVIEW
Luciano S Caixeta, Julia A Herman, Greg W Johnson, Jessica A A McArt
Displaced abomasum (DA) is a postpartum disease that causes significant economic losses in the dairy industry. Abomasal atony and excessive production of gas have been reported as prerequisites for the development of DA. The exact cause of DA is unknown, yet infectious and metabolic disease, diet composition and physical form, cow comfort, and management of dairy cows during the transition period have been associated with the occurrence of this disorder. This review article discusses different factors that lead to the development of DA and strategies for monitoring DA and its comorbidities at the herd level...
December 1, 2017: Veterinary Clinics of North America. Food Animal Practice
https://www.readbyqxmd.com/read/29202756/pestivirus-infection-in-cattle-dairy-farms-e2-glycoprotein-elisa-reveals-the-presence-of-bovine-viral-diarrhea-virus-type-2-in-northwestern-italy
#16
Chiara Nogarol, Nicola Decaro, Luigi Bertolotti, Barbara Colitti, Bryan Iotti, Stefano Petrini, Maria Stella Lucente, Gabriella Elia, Giovanni Perona, Margherita Profiti, Canio Buonavoglia, Sergio Rosati
BACKGROUND: Bovine viral diarrhea virus (BVDV) types 1 and 2 are members of the Pestivirus genus of the Flaviviridae family. This genus also includes the HoBi-like virus, tentatively classified as BVDV type 3. BVDV-1 is widely distributed in Italy despite the extensive use of BVDV-1-based vaccines, while BVDV-2 and HoBi-like Pestivirus have been detected occasionally. Monitoring the occurrence of sporadic or atypical pestiviruses is a useful approach to evaluate the need for additional vaccine strains that can be used in BVDV control programs...
December 4, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29202671/natural-lymphatic-atypical-actinobacillosis-in-cattle-caused-by-actinobacillus-lignieresii
#17
Rubén D Caffarena, Ana Rabaza, Laura Casaux, Melissa Macías Rioseco, Carlos O Schild, Cecilia Monesiglio, Martín Fraga, Federico Giannitti, Franklin Riet-Correa
Bovine actinobacillosis is typically characterized by pyogranulomatous glossitis (wooden tongue). The involvement of other tissues, generally the skin or lymph nodes, has been regarded as atypical or cutaneous. We describe herein 2 outbreaks of actinobacillosis affecting primarily the lymph nodes of the head and neck. The disease affected 40 of 540 lactating cows in a dairy herd and 5 of 335 two-y-old steers in a beef herd. Multiple or single, occasionally ulcerated nodules were observed in the region of the mandible, neck, and shoulder, including the parotid, submandibular, retropharyngeal, and prescapular lymph nodes...
December 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29202250/systemic-granulomatous-disease-in-dairy-cattle-during-a-dicyandiamide-feeding-trial
#18
J Cayzer, K N Buckle, J S Munday, S F Ledgard, A Heiser, A Thatcher
CASE HISTORY: Mature, in-calf, non-lactating, Friesian or Friesian-cross cows were fed dicyandiamide (DCD) at daily doses of 0.15 g/kg (Group 1; n=31), 0.45 g/kg (Group 2; n=21) and 0.75 g/kg (Group 3; n=12), as part of a safety trial, which also included a control group (n=15). Daily health observations were carried out on each cow until Day 86 of the study. On Day 28 one cow from Group 3 was observed with signs of disease, and subsequently in other cows. CLINICAL FINDINGS: Clinical signs in the first case included depression, pyrexia (40...
December 4, 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/29191491/a-nested-pcr-strategy-for-molecular-diagnosis-of-mollicutes-in-uncultured-biological-samples-from-cows-with-vulvovaginitis
#19
Daniele Cristina Voltarelli, Brígida Kussumoto de Alcântara, Michele Lunardi, Alice Fernandes Alfieri, Raquel de Arruda Leme, Amauri Alcindo Alfieri
Bacteria classified in Mycoplasma (M. bovis and M. bovigenitalium) and Ureaplasma (U. diversum) genera are associated with granular vulvovaginitis that affect heifers and cows at reproductive age. The traditional means for detection and speciation of mollicutes from clinical samples have been culture and serology. However, challenges experienced with these laboratory methods have hampered assessment of their impact in pathogenesis and epidemiology in cattle worldwide. The aim of this study was to develop a PCR strategy to detect and primarily discriminate between the main species of mollicutes associated with reproductive disorders of cattle in uncultured clinical samples...
November 24, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29186864/brazilian-citizens-expectations-regarding-dairy-cattle-welfare-and-awareness-of-contentious-practices
#20
Clarissa S Cardoso, Marina A G von Keyserlingk, Maria José Hötzel
The primary aim of this study was to explore attitudes of urban Brazilian citizens about dairy production. A secondary aim was to determine their knowledge and attitudes about four potentially contentious routine dairy cattle management practices: early cow-calf separation; zero-grazing; culling of newborn male calves; and dehorning without pain mitigation. To address the first aim 40 participants were interviewed using open-ended semi-structured questions designed to probe their views and attitudes about dairy production in Brazil, and 300 participants answered a questionnaire that included an open-ended question about the welfare of dairy cattle...
November 26, 2017: Animals: An Open Access Journal From MDPI
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