Pregnancy dependence on ovarian progesterone in the camel (Camelus dromedaries)

M. M. Al-Eknah, Abdelgadir Musa Homeida, R. O. Ramadan, F. A. Al-Modhi, Khalid Al-Busadah

Research output: Contribution to journalJournal articlepeer-review

4 Scopus citations

Abstract

The corpus luteum of pregnancy persists throughout the length of gestation in the dromedary camel and thus it is assumed that the ovarian progesterone is mandatory throughout gestation in this species. The objectives of this study were to test the assumption that maintenance of the pregnancy state is dependent upon ovarian progesterone throughout gestation in the dromedary camel. Thirteen parous, 10-11 months pregnant camels were used. The female camels were divided randomly into three groups. Group I animals (3) were control. Group II animals (7) were ovariectomised. Group III animals (3) were ovariectomised and received daily subcutaneous injection of 100 mg progesterone powder prepared in sesame oil for 60 days. Jugular blood samples were taken in heparinised syringes before and after ovariectomy throughout the experimental period and plasma was obtained and stored at -30"c until analyzed for progesterone and oestradiol-17β by radioimmunoassay. Removal of the ovaries containing corpora lutea in group II was immediately followed by abortion or premature birth. The chronic administration of progesterone succeeded in maintaining pregnancy with normal gestation length. However, fetal viability in the group maintained on progesterone was lower than in the normal controls.

Original languageEnglish
Pages (from-to)27-32
Number of pages6
JournalEmirates Journal of Food and Agriculture
Volume13
Issue number1
DOIs
StatePublished - 2001

Keywords

  • Camel
  • Corpus luteum
  • Gestation
  • Progesterone

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