Effects of Defaunation and Urea on Glutathione and Malondialdehyde Levels in Blood and Ruminal Fluid of Ramlıç Lambs

Yılmaz DÜNDAR

Makale detayları

Effects of Defaunation and Urea on Glutathione and Malondialdehyde Levels in Blood and Ruminal Fluid of Ramlıç Lambs

Yazarlar:

Yılmaz DÜNDAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Veterinary and Animal Sciences 2004 Vol.28 Issue 2, pp.265-269

Belge Tipi:

Makale

Yayın Tarihi:

1/2004

Belge Dili:

Türkçe

Document ID (Org No.):

2000769564

Sıklık:

İki Aylık

eISSN:

1303-6181

pISSN:

1300-0128

Anahtar kelimeler:

Özet:

 

The objective of this study was to investigate ruminal fluid and whole blood oxidant-antioxidant status in normal and fauna-free small ruminants. Forty male Ramlıç lambs, a local breed in the Afyon area, with an average body weight of 32-36 kg and approximately 210 days old were  used. The lambs were divided equally into 4 groups (faunated (F), defaunated (D), faunated + urea (FU) and defaunated + urea (DU)). Malondialdehyde (MDA) and glutathione (GSH) concentrations in the ruminal fluid and blood were measured. In comparison with the controls, all parameters were significantly higher in the fauna-free animals. The ruminal fluid MDA concentration decreased and the GSH level increased when 2.9% urea was added to rations. The defaunation procedure causes MDA formation to increase in the blood and ruminal fluid. The presence of 2.9% urea in rations may lead to lower oxidative stress and an augmented  GSH level in rumen of fauna-free animals. Therefore, urea can be an important local antioxidant for the rumen of ruminants. As a result, defaunation may make the animals more susceptible to oxidative stress. Urea supplementation appears to reduce oxidative stress status and to support the antioxidant defense system in the rumen. Urea supplementation may be of major importance for fauna-free ruminants, whose ruminal antioxidant status  may not be sufficiently well prepared to enhance performance.

 

The objective of this study was to investigate ruminal fluid and whole blood oxidant-antioxidant status in normal and fauna-free small ruminants. Forty male Ramlıç lambs, a local breed in the Afyon area, with an average body weight of 32-36 kg and approximately 210 days old were  used. The lambs were divided equally into 4 groups (faunated (F), defaunated (D), faunated + urea (FU) and defaunated + urea (DU)). Malondialdehyde (MDA) and glutathione (GSH) concentrations in the ruminal fluid and blood were measured. In comparison with the controls, all parameters were significantly higher in the fauna-free animals. The ruminal fluid MDA concentration decreased and the GSH level increased when 2.9% urea was added to rations. The defaunation procedure causes MDA formation to increase in the blood and ruminal fluid. The presence of 2.9% urea in rations may lead to lower oxidative stress and an augmented  GSH level in rumen of fauna-free animals. Therefore, urea can be an important local antioxidant for the rumen of ruminants. As a result, defaunation may make the animals more susceptible to oxidative stress. Urea supplementation appears to reduce oxidative stress status and to support the antioxidant defense system in the rumen. Urea supplementation may be of major importance for fauna-free ruminants, whose ruminal antioxidant status  may not be sufficiently well prepared to enhance performance.

Makale detayları

Effects of Defaunation and Urea on Glutathione and Malondialdehyde Levels in Blood and Ruminal Fluid of Ramlıç Lambs

Yazarlar:

Yılmaz DÜNDAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Veterinary and Animal Sciences 2004 Vol.28 Issue 2, pp.265-269

Belge Tipi:

Makale

Yayın Tarihi:

1/2004

Belge Dili:

Türkçe

Document ID (Org No.):

2000769564

Sıklık:

İki Aylık

eISSN:

1303-6181

pISSN:

1300-0128

Defaunation

urea

oxidative stress

glutathione

malondialdehyde

antioxidants

Sayı

Makale detayları

Effects of Defaunation and Urea on Glutathione and Malondialdehyde Levels in Blood and Ruminal Fluid of Ramlıç Lambs

Yazarlar: Yılmaz DÜNDAR

Yayıncı: TUBITAK

Dergi: Turkish Journal of Veterinary and Animal Sciences 2004 Vol.28 Issue 2, pp.265-269

Belge Tipi: Makale

Yayın Tarihi: 1/2004

Belge Dili: Türkçe

Document ID (Org No.): 2000769564

Sıklık: İki Aylık

eISSN: 1303-6181

pISSN: 1300-0128

Defaunation

urea

oxidative stress

glutathione

malondialdehyde

antioxidants

Sayı

Yazarlar:

Yılmaz DÜNDAR

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Veterinary and Animal Sciences 2004 Vol.28 Issue 2, pp.265-269

Belge Tipi:

Makale

Yayın Tarihi:

1/2004

Belge Dili:

Türkçe

Document ID (Org No.):

2000769564

Sıklık:

İki Aylık

eISSN:

1303-6181

pISSN:

1300-0128