Laparoscopic artificial insemination in dairy sheep with hilled semen stored for up to 26 h

Carlos Gimenez-Diaz, Ebru Emsen, Sezen Ocak, Fatih Aslan

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Adult East Freisan crossbred (n = 220) and Chios ewes (n = 105) were divided into four groups and inseminated with chilled semen, which had been stored for 7, 13, 20 or 26 h at 5°C. Unilateral intrauterine insemination (50 x 106 spermatozoa in 0.25 ml) was performed with the aid of a laparoscope. Inseminations were carried out 48 - 52 h after pessary removal (30 mg FGA) without detecting estrus. The lambing rates after intrauterine insemination with chilled semen were found to be similar in East Fresian crossbred (40%) and Chios ewes (30%). Intrauterine insemination with chilled semen stored up to 26 h resulted in similar lambing rates; whereas, fertility of Chios ewes tended to decline with increased holding time of chilled semen. From this study, it is concluded that decreasing the storage time of chilled semen at 5°C improves pregnancy in Chios ewes and that East Fresian crossbred ewe's conception rates to intrauterine insemination with chilled semen was relatively higher than Chios ewes.

Original languageEnglish
Pages (from-to)5812-5814
Number of pages3
JournalAfrican Journal of Biotechnology
Volume10
Issue number30
Publication statusPublished - Jun 27 2011
Externally publishedYes

Keywords

  • Chilled semen
  • Dairy sheep
  • Lambing rate
  • Time of insemination

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Genetics
  • Agronomy and Crop Science

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