Süt İneklerinde Görülen Subklinik ve Kinik Ketozisin Bazı Hematolojik Parametreler, Mastitis, Metritis İnsidensleri ile Sürü Dışı Kalma Oranına Etkileri

Öz

Bu çalışma 950 adet süt sığırı  içerisinden rastgele seçilen 197 adet süt sığırı üzerinde yürütülmüştür. Hayvanlar doğum yaptıkları günden itibaren takibe alınmış olup ilk 8 hafta boyunca kan sayımı ve serum BHBA analizleri haftalık olarak yapılmıştır. Elde edilen BHBA sonuçlarına göre çalışmadaki tüm hayvanlar aşağıdaki şekilde üç gruba ayrılmıştır; a) Kontrol Grubu “K”; çalışma boyunca serum BHBA seviyesi 1.2 mmol/l’nin altında seyredenler b) Subklinik Ketozis Grubu “SK”; serum BHBA seviyesi 1.2 ile 2.9 mmol/l arasında seyredenler c) Klinik Ketozis Grubu “KK”; serum BHBA seviyesi 2.9 mmol/l’nin üzerinde seyredenler. Çalışmada kullanılan tüm parametreler sürü yönetim programından (Dairy Plan, Gea, Westfalia/Almanya) alınmıştır. Çalışmada kullanılan tüm hayvanlar aynı rasyonla beslenmiş olup hiçbir hayvana özel bir koşul uygulanmamıştır. Yapılan analizler sonrasında TLS, LS ve NS’nın en yüksek olduğu grup KK, en düşük olduğu grup K olarak tespit edilmiştir. Özellikle TLS ve BHBA seviyeleri arasında güçlü bir  ilişki tespit edilmiştir (p<0,000). Bununla birlikte hem mastitis hem metritis hem de bu iki enfeksiyonun birlikte seyretme insidensi subklinik ve klinik ketozis gruplarında kontrol grubuna göre çok yüksek bulunmuştur. Bununla birlikte subklinik ve klinik ketozis geçiren hayvanlarda sürü dışı bırakma oranı kontrol grubuna göre çok daha yüksek bulunmuş aynı zamanda ketozisin şiddetinin artması ile bu oranının da doğru orantılı bir şekilde yükseldiği görülmüştür. Bu bulgular göstermektedir ki gerek klinik gerekse subklinik ketozis geçiren hayvanlarda hematolojik parametreler ciddi oranda değişmekte, mastitis ve metritis gibi periparturient dönemin önemli enfeksiyöz hastalıklarına yatkınlık artmakta ve tüm bunların bir sonucu olarak sürü dışı kalma oranı yükselmektedir. 

Anahtar Kelimeler

• Ketozis
• Mastitis
• Metritis
• Sürü Dışı Bırakma Oranı
• Süt Sığırı

Effects of Subclinical and Clinical Ketosis on The Incidence of Mastitis, Metritis, Culling Rate and Some Hematological Parameters in Dairy Cows

Öz

The study was conducted on 197 milk dairy cattle randomly selected from 950 breeding dairy cattle. These animals were monitored immediately after delivery and blood count and serum BHBA analyzes were performed weekly for the first 8 weeks. According to the results of the BHBA obtained, all animals in the study were divided into three groups as follows; a) Control Group “C”; serum BHBA levels below 1.2 mmol/l during the study b) Subclinical Ketosis Group “SK”; serum BHBA levels between 1.2 and 2.9 mmol/l c) Clinical Ketosis Group “CK”; serum BHBA levels were above 2.9 mmol/l. All performance parameters such as milk yield and reproductive efficacy obtained from the herd management program (Dairy Plan, Gea / Germany). TLS, LS, NS, MS levels were found to be higher in the SK and CK compared to the C. Especially, a strong positive interaction between TLS and blood BHBA level was determined (P <0,000). In addition, the incidence of mastitis, metritis and coexistence of these two infections was significantly higher in the SK and CK than in the C (p <0,013). Furthermore, the rate of culling was significantly higher in the SK and CK than C and it was also observed that this ratio increased in parallel with the severity of the ketosis (p <0.008). These findings show that hematologic parameters change significantly in animals that have undergone clinical or subclinical ketosis and that susceptibility to significant infectious diseases during the periparturient period such as mastitis and metritis increases and as a result, the rate of culling increases.

Anahtar Kelimeler

• Ketosis
• Mastitis
• Metritis
• Culling Rate
• Dairy Cows

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