The effects of exogen hormone treatment during the anoestrus period on fertiliy in crossbred ewes carrying Booroola genes (F and f)

Ozturk B., Elicin A.

TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, cilt.23, sa.6, ss.615-620, 1999 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 6
  • Basım Tarihi: 1999
  • Dergi Adı: TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.615-620
  • Anahtar Kelimeler: Booroola Merino, PMSG, reproductive traits, SHEEP
  • Ankara Üniversitesi Adresli: Hayır

Özet

In this study, the effects of progestagen and different doses of PMSG (250 I.U and 400 I.U) treatment on pregnancy, lambing and multiple birth rates in Border Leicester x Boorooia (Ff) x Merinos and Border Lecister x Boorooia (ff) x Merinos ewes in the anoestrus cycle were examined. It was found that in ewes with Ff genotype, 250 I.U PMSG dose had a positive but nonsignificant effect on the pregnancy rate and it was significant (p<0.01) on lambing and twinning rate. On the other hand, in ewes with ff genotype, it was found that the effect of progestagen + 400 I.U PMSG treatment on the same traits was significant (p<0.01). it was determined that the pregnancy, lambing and multiple birth rates in ewes with Ff and ff genotypes which were treated with exogen hormone were higher (p<0.01) than ewes with ff genotype which wereot treated with exogen hormone.