Ejaz AHMAD, Ijaz AHMAD, Sana IRUM, Tanveer AHMAD, Muhammad Saleem AKHTAR, Muhammad Mazhar AYAZ, Laeeq Akbar LODHI, Mushtaq Hussain LASHARI, Masood AKHTAR

Nili Ravi Mandalarında Postpartum Östrus Aralıkları Üzerine Boğanın Biyo-uyarıcı Etkisi

Bu çalışmanın amacı Nili Ravi mandalarında buzağılama sonrası boğaya maruz kalmanın postpartum östrus aralıkları üzerine etkisini belirlemektir. Mandalar 4 gruba ayrıldı; BEC: Sürekli olarak boğayla fiziki olarak beraber bulunduruldu, BEI: Aralıklı olarak boğayla fiziki olarak beraber bulunduruldu, EPB: Boğanın atıkları (idrar ve dışkı) ile beraber bırakıldı NE: Boğanın atıkları (idrar ve dışkı) ile beraber bırakılmadı. Boğaya veya atıklarına maruz bırakma doğum sonrası 5. günde gerçekleşti. İlk davranışsal östrus postpartum aralık BEC’de BEI, EPB ve NE gruplarından daha kısaydı. Ortalama progesteron konsantrasyonu BEC ile diğer gruplar (BEI, EPB ve NE) arasında anlamlı bir fark göstermedi. Nili Ravi mandalarında boğa mevcudiyetinin buzağılama aralıklarına olumlu etkisinin olduğu sonucuna varıldı.

Bio-stimulatory Effect of Bull on Postpartum Estrus Interval in Nili-Ravi Buffaloes

The objective of this study was to determine the effect of bull exposure after calving on postpartum interval to estrus, in Nili-Ravi buffalo.Buffaloes were divided into 4 groups; BEC & BEI; exposed continuously or intermittently to the physical presence of bull, EPB & NE; exposed ornot exposed to discharge waste (urine & feces) of bull. Buffaloes were exposed on d 5 after parturition. Postpartum interval to first behaviouralestrus was shorter in BEC than BEI, EPB and NE treatments. The mean serum progesterone concentration did not differ significantly betweenBEC and other (BEI, EPB and NE) treatments. It was concluded that presence of bull has positive effect in reducing calving interval in Nili Ravibuffalo.

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