Shouping ZHANG, Xiaojing XIA, Lirong WANG, Renfeng LI, Meng YANG, Sanhu WANG

Associations Between Forkhead Box L2 Expression and Ovary Development in Laying Hens

Make sure healthy ovary or follicle is critical for extending egg laying performance in poultry. Transcription factor forkhead box L2 (FOXL2) gene have key role in regulate development of ovary. In the present research, diffrent aged Hy-line Brown hens were maintained to explore relationships between ovarian developing and FOXL2 expression. Through histological observation, diffrent quantities of follicles from various phases of age were observed. It was displayed that FOXL2 expression and number mature follicle were increased as the days of age increased and then decreased. In comparison, the expression of FOXL2 in hypothalamus and eyelid were remained in a relative stable level. Taken together, these data in our research establish a framework for understanding the potential functions of FOXL2 in regulate chicken ovarian developing and may provide a new perspective on the theory and practice to increase egg production or others.

Yumurtacı Tavuklarda Ovaryum Gelişimi İle Forkhead Box L2 Ekspresyonu Arasındaki İlişki

Kanatlılarda yumurtlama performansını artırmada sağlıklı ovaryum veya foliküller kritik öneme sahiptir. Transkripsiyon faktörü forkhead box L2 (FOXL2) geni, ovaryum gelişimini düzenlemede anahtar rol oynamaktadır. Bu araştırmada, ovaryum gelişimi ile FOXL2 ekspresyonu arasındaki ilişkiyi araştırmak için farklı yaşlarda Hy-line Brown tavuklar kullanılmıştır. Histolojik olarak, değişik yaş evrelerindeki folikül miktarları incelendi. FOXL2 ekspresyonu ve olgunlaşmış folikül sayısının, yaşla birlikte arttığı ve sonrasında ise azaldığı gözlemlenmiştir. Hipotalamus ve gözkapağında FOXL2 ekspresyonu karşılaştırıldığında göreceli olarak sabit kaldıkları belirlenmiştir. Sonuçlar birlikte değerlendirildiğinde, çalışmada elde edilen veriler tavuklarda ovaryum gelişimini düzenlemede FOXL2’nin muhtemel fonksiyonunu anlamada bir çerçeve oluşturabilir, teorik ve uygulamada yumurta üretimini artırmada yeni bir bakış açısı geliştirmeye yardımcı olabilir.

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