The Effects of Progesterone and Estrogen Hormone Levels on Some Reproductive Characteristics of The Akkaraman Sheep

In this study, progesterone and estrogen hormone levels ofAkkaraman (White Karaman/WK) sheep and their effects on somereproductive traits were investigated. The data obtained, from 31ewes, as 90.32% for lambing, 53.57% for a single birth, 46.42% fortwinning, 132.25% for lamb production and 1.46 for litter size.Between the first and second estrus, progesterone levels were foundto be between 3.69-12.20 ng/ml for singles and 3.04-10.44 ng/ml fortwins; estrogen levels were determined to be between 39.40-84.03pg/ml for singles and 52.44-72.77 pg ml for twins. The equivalentvalues at anestrus period of progesterone were 0.20-10.20 ng/ml, andestrogen levels were 6.30-169.60 pg/ml. The effects of birth type onestrogen level were not-significant, while progesterone levels weredetermined to be significant on the second and third days before thesecond estrus (P

Akkaraman Koyunlarının Bazı Üreme Özellikleri Üzerine Progesteron ve Östrojen Hormon Seviyelerinin Etkileri

Bu çalışmada, Akkaraman koyunlarının üreme döneminde progesteron ve östrojen hormon düzeylerini ve bu hormonların bazı üreme özellikleri üzerine etkileri incelenmiştir. İncelenen 31 baş koyunda doğum oranı %90.32; tek doğum oranı %53.57; ikizlik oranı %46.42; kuzu verimi %132.25 ve tek doğuma kuzu oranı ise 1.46 olmuştur. Birinci ikinci östrus arası progesteron seviyeleri tek doğuran koyunlarda 3.69-12.20 ng/ml; ikiz doğuran koyunlarda 3.04- 10.44 ng/ml; östrojen miktarları tek doğuran koyunlarda 39.40-84.03 pg/ml ve ikiz doğuran koyunlarda 52.44-72.77 pg/ml olarak bulunmuştur. Progesteronun anöstrus dönemindeki seviyesi 0.20- 10.20 ng/ml; östrojenin 6.30-169.60 pg/ml olmuştur. Östrojen hormonunun doğum tipi üzerine etkisi önemsiz; progesteron seviyelerinin ikinci östrustan önceki ikinci ve üçüncü günlerde doğum tipine etkisinin önemli olduğu (P

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