Effects of selenium-vitamin E or Progestagen-PMSG injections on reproductive performance of ewes

Koyuncu M., Uzun S., Ozis Ş., Yerlikaya H.

JOURNAL OF APPLIED ANIMAL RESEARCH, vol.29, no.2, pp.137-140, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 2
  • Publication Date: 2006
  • Doi Number: 10.1080/09712119.2006.9706589
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.137-140
  • Keywords: Progestagen, PMSG, vitamin E, Se, Karacabey Merino, ewe
  • Bursa Uludag University Affiliated: Yes


The experiment was conducted on 120 Karacabey Merino ewes divided into four groups. Two groups consisted of 2-year-old ewes, before their first lambing and two groups of the 3-year-old ewes after the first lambing. Within each age category, one group of ewes was treated with 5 ml 0.1% sodium selenate and 250 mg vitamin E, the other group progestagen sponge + 500 IU PMSG. The progestagen sponge + PMSG treated groups demonstrated oestrus symptoms earlier than the Vit E + Se injected groups. The progestagen sponge + PMSG treated group significantly increased fertility (100%, P < 0.01) and prolificacy (146.7%, P < 0.01) in 3 year-old ewes compared to other groups. The injections Vit E + Se significantly increased lamb birth weight (4.4 kg, P < 0.05) and daily weight gain for 60 days (290.0g, P < 0.01) in 3-year-old ewes compared with 2-year-old ewes treated with Vit E + Se and progestagen sponge + PMSG ewes.