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 / Small Animal Practice /     
 
Temperature gradients within mammalian ovaries before ovulation
The existence of a temperature gradient between the testis and deep body temperature has been accepted for many years. But what about the ovaries? Is there a similar mechanism? Very interesting findings from Scandinavia which are `hot off the press`.

The temeprature gradient in males is based on two simultaneous principles: cooling of the testis through the scrotal wall and transfer of heat between the testicular blood vessels.

The ovary is positioned in the abdomen; a temperature difference parallel to the male system therefore seems less likely.

However, the temperature of large follicles has been found to be 0.5 to 1.5 °C cooler than the ovarian stroma in rabbits, pigs and, probably, women.

The temperature difference seems to be based on a heat-consuming process in the expanding follicullar fluid, and a local transfer of heat between intra-ovarian blood vessels.

The reason for the temperature gradient is not yet known; one may speculate of a common reason for the cooling of the gamete in male and female.




Source: Hunter, R. H. F. & Einer-Jensen, N. (2005): Pre-ovulatory temperature gradients within mammalian ovaries: a review. In: Journal of Animal Physiology and Animal Nutrition 89 (7-8), 240-243.





Tell a friend   |   Print version   |   Send this article

SMALL ANIMAL PRACTICE

Aldosterone-producing adrenocortical carcinoma with myxoid differentiation in a Persian cat
A 10‐year‐old male neutered Persian cat was presented with an abdominal mass and history of weakness. Blood smear examination found marked elliptocytosis, and serum biochemical analysis revealed hypokalemia, hypochloremia, increased creatine kinase activity, and a high aldosterone concentration. Cytologic examination of the mass revealed neoplastic endocrine cells with moderate criteria of malignancy, favoring adrenocortical neoplasia. A very interesting case report!

  • Reference intervals for blood parameters in Shetland Sheepdogs
  • Toceranib phosphate (Palladia®) in canine gastrointestinal stromal tumorsmembers
  • Radioactive iodine uptake in hyperthyroid cats after rh-TSHmembers
  • Punica granatum associated with hepatotoxicosis in cattle
  • Hypoechoic tissue changes in dogs with malignant prostatic lymphomamembers
  • Emphysematous gastritis in dogs and catsmembers
  • Primary pulmonary histiocytic sarcoma in dogsmembers
  • Determining prognosis in canine sepsis members
  • Correlation of plasma and tear glucose, creatinine and urea nitrogen in catsmembers
  • Perineal hernias in dogs - always a bilateral problem?members
  • Pharmacokinetic of gabapentin in catsmembers
  • Follicular development of canine ovaries stimulated by eCG plus hCGmembers


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

    Copyright © 2001-2018 VetContact GmbH
    All rights reserved