THE EFFECT OF PREPARTUM ANTIOXIDANT ADMINISTRATIONS ON BLOOD BHBA CONCENTRATION IN COWS

Yıl 2019, , 147 - 153, 01.06.2019

Serdal Kurt , Mert Pekcan Rıfat Vural , Şükrü Küplülü

https://doi.org/10.33483/jfpau.538179

Öz

Objective: The presented study was aimed that investigation effect of the prepartum antioxidant administration on blood Beta-hydroxybutyric acid (BHBA) concentrations at day 7th postpartum in Holstein dairy cows.

Antioxidants are defined as substances that delay or inhibits oxidative damage. Oxidantssuch as reactive oxygen species (ROS) are created as a consequence of adenosine triphosphate(ATP) production in mitochondria. Oxidants can cause tissue damage by damaging cells' macromolecules, such as DNA, proteins, and lipids. Lipids are the most sensitive macromolecule against oxidative damage. Oxidative stress can both disrupt the mechanism of insulin and induce more lipolysis. And so, ROS overproduction can enhance non‐esterified fatty acids (NEFA) and BHBA production.

Material and Method:Eighty multiparous Holstein breed pregnant dairy cows were used in this study. The cows were divided into two groups astreatment (G1; n=40) and control groups (G2; n=40). In the G1, solutions containing of vitamins (A, D, E) and trace elements (Cu, Zn, Se, Mn) were performed intramuscularly at 21±5 and 10±5 days before expected parturition (280 days). In the G2, it was performed the same amounts of saline injections as a placebo.

Result and Discussion: Blood BHBA levels were found that lower in the G1 group (0.73±0.20 mmol/L) compared to the G2 group (0.84±.29 mmol/L). In conclusion, it was determined that prepartum antioxidant administrations decrease blood BHBA concentration in the postpartum period in dairy cows.

Anahtar Kelimeler

Antioxidant, BHBA, Cow, oxidative stres

Proje Numarası

18L0239022

Teşekkür

This article was produced from the Ph.D. thesis titled ‘Investigation Effect of Prepartum Antioxidant Administration on Oxidative Stress Energy Metabolism and Colostrum Quality in Cows’ which belongs to Serdal Kurt. Ankara University-Scientific Research Projects (BAP) Coordinator project number: 18L0239022.

İNEKLERDE PREPARTUM ANTİOKSİDAN UYGULAMALARININ KAN BHBA KONSANTRASYONU ÜZERİNE ETKİSİ

Öz

Amaç: Sunulan çalışmada, Holstein sütçü ineklerde prepartum antioksidan uygulamalarının postpartum 7. günde kan Beta-hidroksibütirik asid (BHBA) konsantrasyonu üzerine etkisinin araştırılması amaçlandı.  Antioksidanlar oksidatif hasarı geciktiren veya engelleyen maddeler olarak tanımlanmaktadır. Reaktif oksijen türleri (ROS) gibi oksidan maddeler mitokondrilerde adenozin trifosfat (ATP) üretiminin bir sonucu olarak oluşturulur. Oksidan maddeler hücrelerin dezoksiribonükleik asit, proteinler ve lipidler gibi makromoleküllerine zarar vererek doku hasarına neden olabilir. Lipitler oksidatif hasara karşı en hassas makromoleküllerdir. Oksidatif stres insülin mekanizmasını bozarak daha fazla lipolize neden olabilir. Böylece, aşırı derecede ROS üretimi esterleşmemiş yağ asitlerini (NEFA) ve BHBA üretimini artırabilir.  Gereç ve Yöntem: Bu çalışmada 80 adet multipar Holstein ırkı gebe sütçü inek kullanıldı. İnekler, tedavi (G1; n = 40) ve kontrol grubu (G2; n = 40) olmak üzere iki gruba ayrıldı. G1'e vitamin (A, D, E) ve iz element (Cu, Se, Mn, Zn) içeren solüsyonlar beklenen doğum tarihinden (280 gün) önce 21±5 ve 10±5 günlerde intramuskuler yolla uygulandı. G2'ye, plasebo ile aynı miktarda serum fizyolojik enjeksiyonu yapıldı.  Sonuç ve Tartışma: Kan BHBA konsantrasyonları G2’ye (0.84±0.29 mmol/L) göre G1’de (0.73±0.20 mmol/L) daha düşük bulundu. Sonuç olarak, sütçü ineklerde prepartum antioksidan uygulamalarının, postpartum dönemde kan BHBA konsantrasyonunu azalttığı tespit edildi.

Anahtar Kelimeler

antioksidan, BHBA, inek, oksidatif stres

Proje Numarası

18L0239022

Kaynakça

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