Halk Eli Norduz Sürü Kompozisyonlarının Karşılaştırmalı Doğal Aşım ve Yapay Tohumlama Döl Verimleri

Yıl 2024, Cilt: 21 Sayı: 2, 297 - 302, 31.12.2024

Kadir Kırk

https://doi.org/10.25308/aduziraat.1586645

Öz

Bu araştırmada Van İli halk eli Norduz koyun sürü kompozisyonlarının 2017-2020 yılları arasında karşılaştırmalı doğal aşım ve yapay tohumlama döl verimleri belirlenmiştir. Koyun sürüsü kompozisyonlarında, %22.1 ile %24.6 oranında, her yaş ve çağda, kıl, Norduz ve bunların rastgele melezlerinden oluşan keçi ile koyunun karışık yetiştirildiği belirlenmiştir. Aynı Norduz koyun sürüsü, 2020 yılında 3 baş İvesi koçun sperması ile yapay tohumlanarak, 2017-2018 ve 2019 yıllarına ilişkin 3 yıllık doğal aşım döl verimi ile karşılaştırılmıştır. Bu amaçla, 397 baş 2-6 yaşlı Norduz koyun, 3 yaşlı 3 baş İvesi damızlık koç ve 4-7 yaş’lı 14 baş Norduz arama koçu olmak üzere, toplam 414 baş, halk eli erkek ve dişi materyal kullanılmıştır. 2017 - 2018 ve 2019 yıllarına ilişkin Norduz koyun sürüsünün doğal aşım döl verim oranları sırası ile; 436 baş ile %68.6, 413 baş ile %63.7 ve 401 baş ile % 59.9 iken, 2020 yılında 397 baş koyunun yapay tohumlama döl verimi % 90.7 olarak belirlenmiştir. Halk eli Norduz koyun sürüsünün yıllara göre doğal aşım döl verim oranları arasındaki fark sırası ile %3.8-5.1 ve 8.9 istatistiki olarak düşük düzeyde önemli iken (P≤0.05), 2020 yılı yapay tohumlama döl veriminin, doğal aşım döl verimlerine göre sırası ile % 21.9 - 27.0 ve 30.8 ile istatistiki olarak önemli düzeyde yüksek olduğu belirlenmiştir (P≤0.01). Araştırma sonucunda halk elindeki keçi ile karışık Norduz koyun sürülerinin düşük döl verimleri, aynı koşullarda İvesi koçların taze ve sulandırılmamış sperması ile yapay tohumlanmaları ile önemli düzeyde arttırılabileceği tespit edilmiştir.

Anahtar Kelimeler

Norduz, koyun, doğal aşım, yapay tohumlama, döl verimi

Comparative natural meeting to artificial insemination fertility of people Norduz flock compositions

Öz

Comparative natural meeting to artificial insemination fertility yields of Van Province people Norduz flock compositions for the years 2017-2020 were determined. It was determined that 22.1% to 24.6% of the sheep flock compositions were mixed with goats and sheep, consisting of hair, Norduz and their random hybrids, in all ages. The same Norduz sheep flock was artificially inseminated with the fresh semen of 3 Awassi rams in 2020 and compared with the 3-year natural meeting fertility of 2017-2018 and 2019. For this purpose, a total of 414 heads of public male and female materials were used, including 397 heads of 2-6-year-old Norduz sheep, 3 heads of 3-year-old Awasi breeding rams and 14 Norduz teaser rams aged 4-7 For years. Natural meeting fertility rates of the Norduz sheep flock for the years 2017 - 2018 and 2019, respectively; While it was 68.6% with 436 heads, 63.7% with 413 heads and 59.9% with 401 heads, the artificial insemination fertility of 397 sheep in 2020 was determined as 97 %. While the difference between the natural meeting fertility rates of people Norduz sheep flock according to years is 3.8-5.1% and 8.9%, respectively, is statistically low level (P≤0.05), than the artificial insemination fertility rate of 2020 is 21.9%, respectively, compared to natural meeting fertility. It was determined to be statistically significantly higher at 27.0 and 30.8 (P≤0.01). The low fertility of publicly owned Norduz sheep flock mixed with goats can be increased significantly by artificial insemination with fresh and undiluted semen of Awassi rams under the same conditions.

Anahtar Kelimeler

Norduz, sheep, natural meeting, AI, fertility

Kaynakça

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