Home
http://www.virbac.fr/ http://www.boehringer-ingelheim.com/ http://www.novartis.com/ http://www.animalhealth.bayerhealthcare.com/
vetcontact
Vetrinär
Tiermedizin
  WELCOME  
vetcontact
Vetrinär
Tiermedizin
  Privacy Policy  
  Home  
  Login / Newsletter  
vetcontact
Vetrinär
Tiermedizin
  CONTACTS  
vetcontact
Vetrinär
Tiermedizin
  Classifieds  
  New Products  
  VetCompanies  
  VetSchools  
vetcontact
Vetrinär
Tiermedizin
  PROFESSION  
vetcontact
Vetrinär
Tiermedizin
  Edutainment  
  VetAgenda  
  Presentations  
  Posters  
  ESAVS  
  Specialisation  
vetcontact
Vetrinär
Tiermedizin
  INSIGHT  
vetcontact
Vetrinär
Tiermedizin
  Congress News  
  Picture Galleries  
vetcontact
Vetrinär
Tiermedizin
  PRODUCTS  
vetcontact
Vetrinär
Tiermedizin
  Bayer  
  Boehringer Ing.  
  Novartis  
  Virbac

 
  Simply book for less...  
    

Bovine    Equine    Small Animal Practice    Swine Practice    Articles    Vetjournal    
deutsch english español polski francais
Home / WELCOME / Archiv / Swine Practice /     
 
Linear versus sector probe for abdominal pregnancy diagnosis in dogs
The assessment of an early and reliable pregnancy diagnosis in sows is very important for limiting the number of non-productive days in sow herds. Transabdominal ultrasound pregnancy diagnosis has become very popular not only in small animals but also in sows. Which method is the most accurate in this species? An important question!

The aim of the present study was to investigate the accuracy of trans-abdominal ultrasound detection for early pregnancy diagnosis in sows under field conditions.

Particular attention was paid to the time when a reliable diagnosis can be made, and to possible differences between two commonly used types of scanners.

In total, 202 sows from two herds were tested daily with scanners A (linear transducer of 5 MHz) and B (sector transducer of 3.5 MHz) from day 16 until 25 after insemination.

Ninety-three percentage of the sows were pregnant 36 days after insemination.

Using ultrasound, the first pregnancy could be detected already 18 days after insemination.

The sensitivity, specificity and overall accuracy were higher than 95% from day 24 (scanner A) or day 23 (scanner B) post-insemination onwards.

The positive predictive values from day 19 onwards were consistently higher than 95% with both types of scanners, whereas the negative predictive values were consistently low for both scanners during the entire period.

The sensitivity of testing tended to be slightly lower in sows with a litter size of <10 total born piglets, compared to sows with 10 or more piglets.

In conclusion, pregnancy diagnosis in sows using trans-abdominal ultrasound testing can be assessed quickly and reliably under field conditions from day 23 of gestation onwards.

Predictive values of positive test results were high in these herds, whereas those of negative test results were low. This implies that sows with a negative test result early in pregnancy should be retested later.



Source: Maes, D, Dewulf, J, Vanderhaeghe, C, Claerebout, K & de Kruif, A (2006): Accuracy of Trans-abdominal Ultrasound Pregnancy Diagnosis in Sows using a Linear or Sector Probe. In: Reproduction in Domestic Animals 41 (5), 438-443.




Tell a friend   |   Print version   |   Send this article

SWINE PRACTICE

Pasteurella multocida diversity in poultry and pigs in Australiamembers
This recently published study investigates the genotype and diversity of Pasteurella multocida present in pig herds and determines the extent of overlap with isolates from poultry flocks in Australia. Do the isolates vary? A very interesting study not only for Australia.

  • Enrofloxacin and the porcine livermembers
  • Outbreak of PEDV in Italymembers
  • Actinobacillus rossii as cause of abortion in a piglet members
  • Association between genome and aggression in group-housed pigsmembers
  • Oral fluid and plasma oxytetracycline concentrations after intramuscular administration in pigsmembers
  • Pharmacokinetics and behavioral effects of a liquid transdermal fentanyl solution in pigsmembers
  • Beta hydroxy beta methyl butyrate and the muscle fibre composition in growing pigsmembers
  • L-carnitine as a feed additive in pigs and poultrymembers
  • PCV-3 in pig serum samples from Spainmembers
  • Oral fluid and plasma oxytetracycline concentrations after i.m. administration in pigsmembers
  • Novel highly pathogenic porcine reproductive and respiratory syndrome virus in Chinamembers
  • Calibration of the TonoVet and Tono-Pen Vet tonometers in pigs´ eyesmembers


  • [ Home ] [ About ] [ Contact / Request ] [ Privacy Policy ]

    Copyright © 2001-2018 VetContact GmbH
    All rights reserved