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
  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  
  Interferon  
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 / Small Animal Practice /     
 
Ultrasound in the prediction of canine litter size and gestational age
Many private owners and breeders want to use this service: sonographic diagnosis of the litter size and the gestational age. This survey determines the accuracy of this technique and gives information about the optimal time of the examination. A very important study for every small animal practitioner!

Different sonographic criteria have been developed to estimate canine fetal age, including fetal mensuration and assessment of fetal organ development.

This retrospective study assessed the accuracy of gestational age and litter size predictions in 76 bitches using one of two techniques.

The first method used the differential features of fetal organ development that occur in early and mid pregnancy, based on published tables for beagles.

The second method used biparietal head and trunk diameters to predict gestational age based on tables published for late gestational Labrador Retrievers.

The accuracy of the two methods was compared and the effect of maternal body weight and litter size evaluated.

Litter size and maternal body weight did not affect the accuracy of gestational age prediction.

Using a combination of both methods, the overall accuracy of predicting parturition date within 65 ± 1 day and ± 2 days was 70.8% and 86.1%, respectively.

The correct litter size was predicted in 65% of cases, and in 89.5% of cases for ± 1 pup. Pearson`s correlation between actual litter size and predicted litter size was high (R = 0.957, P < 0.001).

The organ development method of predicting gestational age was more accurate than late gestational fetal mensuration (P = 0.019). The optimum time for sonographic estimation of fetal age and litter size is early and mid pregnancy.



Source: ZM Lenard, BJ Hopper, NV Lester, JL Richardson, ID Robertson (2007): Accuracy of prediction of canine litter size and gestational age with ultrasound. In: Australian Veterinary Journal 85 (6), 222–225.



Tell a friend   |   Print version   |   Send this article

SMALL ANIMAL PRACTICE

Effects of Flexion and Extension on the Diameter of the Canine Caudal Cervical Vertebral Canal
Radiography is commonly performed in dogs which have orthopedic problems deriving from the cervical spine, and if no contrast is administered, the diameter of the vertebral canal is one of the criteria in the diagnosis of a disc problem. This ex-vivo study was performed to quantify changes in the diameter of the vertebral canal with flexion and extension in the cervical vertebral column.

  • Arthroscopic Treatment of Young Large Breed Dogs With Medial Compartment Disease of the Elbow
  • Topical 1% 5-fluorouracil in a young dog with corneal squamous cell carcinomamembers
  • Perioperative Antimicrobials During Tibial Plateau Leveling Osteotomymembers
  • Serum and urine Blastomyces antigen as markers of clinical remissionmembers
  • Association between vitreous degeneration and cataract in dogsmembers
  • Capsular tension ring use in dogs with phacoemulsification and IOL implantationmembers
  • Minocycline in meticillin-resistant Staphylococcus pseudintermedius infectionsmembers
  • Ultrasound biomicroscopy of the normal canine haired skinmembers
  • Effects of aloe vera on corneal wound closure and collagenase activitymembers
  • Relationship between cataract and vitreous degeneration in dogs
  • Ocular hypertension-induced retinal ischemia-reperfusion injury
  • Therapy of necrotising fasciitis in a cat


  • [ Home ] [ About ] [ Contact / Request ][ Disclaimer ]

    Copyright © 2001-2013 VetContact GmbH
    All rights reserved