Stankevičius, Arūnas; Čepulis, Rytis; Buitkuvienė, Jūratė; Pockevičius, Alius; Aleksėjūnienė, Ilona; Stankevičienė, Marija; Žilinskas, Henrikas
March 2009
Veterinarija ir Zootechnika;2009, Vol. 45 Issue 67, p60
Academic Journal
Porcine circovirus type 2 (PCV2) is essential infectious agent of postweaning multisystemic wasting syndrome (PMWS). PMWS has been described in many countries over the world including West Europe countries. However, the importance of PMWS in Lithuanian or Latvian pig populations has never been investigated or reported before. Therefore, the objective of the present study was to report the diagnosis of PMWS and to determine the phylogenetic relationship of PCV2 positive samples in Lithuanian (LT) and Latvian (LV) pig herds. Three LT and 4 LV pig farms with clinical signs (wasting, dyspnoea and pallor of skin) and gross lesions (enlarged inguinal superficial lymph nodes, enlarged kidneys and skin lesions) compatible with PMWS were included in this study. By nested RT-PCR in all selected farms were detected PRRSV. From these farms, 19 animals (8 from LT and 11 from LV) showed characteristic microscopic lesions in lymphoid tissues after histopatological examination. Seventeen out of the 19 (89.5%) tested samples were positive by ISH, showing moderate to high presence of PCV2 within lymphoid lesions. Based on obtained cap gene sequences from LT and LV farms and selected PCV2 sequences available from Gen- Bank, a phylogenetic tree was constructed. A 90.5% of nucleotide identity between LT and LV PCV2 sequences was found. LV sequences had up to 99.3% identity to selected PCV2 sequences from group 1A, while those values were up to 99.5% for LT and PCV2 sequences from group 2D. Obtained our results fulfilled requested criteria to diagnose PMWS in LT and LV farms, including presence of clinical signs (mainly wasting), characteristic microscopic lesions in lymphoid tissues and detection of PCV2 by within these lesions. However, at this time it is not know how widespread the disease is and its relative importance in these countries.


Related Articles

  • Investigation of strategies for the introduction and transportation of replacement gilts on southern Ontario sow farms. Bottoms, Kate; Poljak, Zvonimir; Dewey, Cate; Deardon, Rob; Holtkamp, Derald; Friendship, Robert // BMC Veterinary Research;2012, Vol. 8 Issue 1, p217 

    Background: Porcine reproductive and respiratory syndrome (PRRS) is of major concern to the swine industry; infection with the virus can lead to production losses, morbidity, and mortality within swine operations. Biosecurity practices related to the management of replacement animals are...

  • Controversial PRRS Control Procedure Wins Advocates. Vansickle, Joe // National Hog Farmer;6/15/2004, Vol. 49 Issue 6, p20 

    Reports on the use of serum therapy to control porcine reproductive and respiratory syndrome (PRRS) in the U.S. Outcomes of serum inoculation; Comparison with other PRRS control procedures; Effectiveness in shortening PRRS outbreaks; Serum therapy applications. INSET: Case Study on Serum Therapy.

  • Filters help hog farm prevent PRRS infections. NEREM, JOEL // Dakota Farmer;Jan2016, Vol. 135 Issue 1, p60 

    The article highlights how filter systems help prevent porcine reproductive and respiratory syndrome (PRRS) infections at barns in the Pipestone System in eastern Iowa.

  • Virus del síndrome reproductor y respiratorio porcino (PRRSV) en granjas porcinas tecnificadas del Estado de México. López Heydeck, Sandra Maricruz; Huitrón Bravo, Gabriel Gerardo; Lagunas Bernabé, Salvador; Soriano Vargas, Edgardo; Cabrera Torres, Arturo; de la Cruz Valdés, Fernando // Revista Mexicana de Ciencias Pecuarias;oct-dic2013, Vol. 4 Issue 4, p469 

    A cluster cross sectional study in a single stage was carried out from April to September 2011 on pigs over 11 wk old from 11 farms, to analyze the viral porcine reproductive and respiratory syndrome (PRRSV) status of technified farms of the State of Mexico. Sera samples (n=220) for ELISA, blood...

  • PRRS Symposium. Vansickle, Joe // National Hog Farmer;11/15/2005, Vol. 50 Issue 11, p8 

    The article announces the international symposium on porcine reproductive and respiratory syndrome virus in Saint Louis, Missouri. The venue of the event will be at the Sheraton Westport Chalet Hotel. Producers, researchers, students, swine health specialists and others are invited to attend.

  • What We Know about PRRS. Dee, Scott // National Hog Farmer Expert Blog;4/18/2012, p6 

    The article provides information on the swine disease called porcine reproductive and respiratory syndrome (PRRS). Clinical signs of PRRS include severe reproductive failure, postweaning pneumonia, decreased performance and increased mortality. PRRS virus is transmitted directly from infected...

  • Pork Checkoff Rolls Out PRRS Research Report. Vansickle, Joe // National Hog Farmer Expert Blog;4/18/2012, p7 

    The article offers information on a report published by the Pork Checkoff titled PRRS Initiative Research, 2004-2011. It contains key findings and applications for porcine reproductive and respiratory syndrome (PRRS) based on the research funded during this period. Information is provided on the...

  • Molecular Characterization and Phylogenetic Analysis of New Variants of the Porcine Epidemic Diarrhea Virus in Gansu, China in 2012. Yufei Tian; Zhijun Yu; Kaihui Cheng; Yuxiu Liu; Jing Huang; Yue Xin; Yuanguo Li; Shengtao Fan; Tiecheng Wang; Geng Huang; Na Feng; Zhenguo Yang; Songtao Yang; Yuwei Gao; Xianzhu Xia // Viruses (1999-4915);Aug2013, Vol. 5 Issue 8, p1991 

    Between January 2012 and March 2012, the infection rates of porcine epidemic diarrhea virus (PEDV) increased substantially in vaccinated swine herds in many porcine farms in Gansu Province, China. The spike (S) glycoprotein is an important determinant for PEDV biological properties. To determine...

  • Rabobank Predicts Significant Decline in Pork Production Driven by PEDV.  // National Hog Farmer Expert Blog;3/25/2014, p1 

    The article focuses on the report published by financial services company Rabobank which discusses the impact of porcine epidemic diarrhea virus (PEDV) on hog production and slaughter in North America through 2015. It states that PEDV impacted 60 percent of the U.S. breeding heard and 28 percent...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics