DENİZ ALIÇ URAL

The relationships among some udder traits and somatic cell count in Holstein-Friesian cows

Bu araştırma, Aydın ili Bozdoğan ilçesi Kamışlar Köyündeki 3 süt sığırcılığı işletmesinde yetiştirilen 129 baş Siyah Alaca ineğin (laktasyonun 1. ve 5. ayları arasında) somatik hücre sayısı ile bazı meme özellikleri arasindaki ilişkileri incelemek amacıyla yapılmıştır. İşletmelere Temmuz 2011 ve Haziran 2012 tarihler arasında, ayda bir gidilerek laktasyonun 50±20 gün, 90±20 gün, 130±20. günlerinde yaklaşık 1108 adet süt örneği ile farklı meme ölçüleri alınmıştır. Ortalama log10SHS 4.9 ± 0.003 (87.923) olarak hesaplanmış, log10SHS üzerine işletme ve ayın istatistiki olarak önemli bir etkisi olduğu tespit edilmiştir (P

Siyah alaca ineklerdeki somatik hücre sayısı ile bazı meme özellikleri arasındaki ilişkiler

This study was carried out to investigate the relationships between somatic cell count (SCC) and some udder traits in 129 head Holstein-Friesian cows (1st and 5th month of lactation) raised at 3 dairy farm in Kamislar Village in Bozdogan county of Aydin province, Turkey. Farms were visited monthly between July 2011 and June 2012, and about 1108 milk samples and different udder measures were taken in 50±20 days, 90±20 days, 130±20 days of lactation of each cow studied. Mean log10SCC were calculated as 4.9±0.003 (87.923). The overall results showed that dairy farms and month of year groups had a significant effect on log10SCC (P<0.01). Positive correlations among fore teats perimeter and log10SCC (0.11) in farm A and among and log10SCC distance between fore teats (0.12) and distance between rear teats (0.10) in farm B, were found at the level of P<0.01, respectively. The correlation between rear teats perimeter and log10SCC (-0.12) was found to be negative and statistically significant in farm C (P<0.01). Consequently, udder traits relevant to minimization or elevation of SCC should be carefully evaluated in selection studies.

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