Uterine activity after induction of hypocalcaemia in the ovariectomized camel (Camelus dromedarius).
Bilateral ovariectomy was performed in three parous, non-pregnant camels. Intrauterine and intraabdominal pressure changes were recorded using balloon-tipped catheters. Uterine contractions were induced and maintained in the ovariectomized camels by daily intramuscular injections of 5 mg oestradiol benzoate throughout the experimental period. The frequency of uterine contractions varied from 6 to 9 per minute, whereas the amplitude varied from 2 to 3 kPa in all the animals. Inducing hypocalcaemia to a level of 0.5 mmol/L by Na2EDTA reduced the amplitude of the contractions to below 1 kPa (p < 0.001). The frequency of the contractions was not affected.
al-Eknah
M M
MM
Camel Research Centre, College of Veterinary Medicine and Animal Resources, King Faisal University, Al-Ahsa, Saudi Arabia.
Homeida
A M
AM
Dafalla
E A
EA
Galil
A K
AK
al-Tahir
A Y
AY
D000704:Analysis of Variance; D000818:Animals; D002118:Calcium / Q000097:blood; D002162:Camelus; D004492:Edetic Acid; D004958:Estradiol / Q000494:pharmacology; D005260:Female; D006996:Hypocalcemia / Q000139:chemically induced / Q000503:physiopathology*; D010052:Ovariectomy / Q000662:veterinary*; D010710:Phosphates / Q000097:blood; D014590:Uterine Contraction / Q000187:drug effects; D014599:Uterus / Q000187:drug effects / Q000502:physiology / Q000503:physiopathology*
D010710:Phosphates; D004958:Estradiol; D004492:Edetic Acid; D002118:Calcium