Effects of Nano Selenium on Some Metabolic and Rumen Parameters in Dorper Sheep

Öz

The aim of the study was to investigate the effects of nano selenium (N-Se) supplementation on some metabolik parameters and rumen fermentation in sheep. In the study, twenty female Dorper sheep, average 60.1±0.44 kg of body weight were used and blood samples and rumen fluid were taken at the end of trial. The animals were randomly divided into two trial groups (n=10). The control animals received the basal ration without Se supplementation, containing a native Se content of 0.06 mg/kg DM. The other sheep were fed the same basal ration supplemented with 3 g/head/day N-Se. Trial were 66 days with 10 days of adaptation to feed and 56 days of feeding period. Serum total protein (p=0.514) and albumin (p=0.126) levels did not change by feeding N-Se. Serum T-cholesterol, triglycerides, AST (p=0.001) and ALT (p=0.030) levels were decreased in the N-Se-treated group when compared with the control. Supplementation of N-Se did not effect ruminal pH values (p=0.792), the molar concentration of acetic acid (p=0.133) and butyric acid (p=0.089), but the ammonia concentration (p=0.001) was decreased, and total VFA concentration (p=0.003) was increased. The ratio of acetate to propionate decreased due to the increasing of propionate concentration (p=0.034). The obtained results indicated that N-Se supplementation positively improved ruminal fermentation and metabolic status. It was concluded that N-Se can be used as an alternatively available selenium source in sheep.

Anahtar Kelimeler

• Dorper sheep
• Nanomineral
• Nano selenium
• Rumen

Dorper Koyunlarında Bazı Metabolik ve Rumen Parametreleri Üzerine Nano Selenyumun Etkileri

Öz

Çalışmanın amacı koyunlarda nano selenyum (N-Se) ilavesinin bazı metabolik parametreler ve rumen fermantasyonu üzerindeki etkilerini araştırmaktır. Çalışmada canlı ağırlıkları ortalama 60.1±0.44 kg olan 20 adet dişi Dorper koyunu ve bu koyunlardan deneme sonunda alınan kan örnekleri ve rumen sıvısı kullanıldı. Hayvanlar rastgele iki deneme grubuna (n=10) ayrıldı. Kontrol hayvanları, Se takviyesi olmadan, 0,06 mg/kg DM'lik doğal Se içeriği içeren temel rasyonla, diğer koyunlar, 3 g/baş/gün N-Se ilaveli temel rasyonla beslendi. Deneme, 10 gün yeme adaptasyon ve 56 gün besi dönemi olmak üzere 66 gün sürdürüldü. Serum toplam protein (p=0.514) ve albümin (p=0.126) düzeyleri N-Se takviyesiyle değişmedi. Serum T-kolesterol, trigliseritler, AST (p=0.001) ve ALT (p=0.030) seviyeleri, N-Se ilave edilen grupta kontrol grubu ile karşılaştırıldığında azaldı. N-Se ilavesi ruminal pH değerlerini (p=0.792), asetik asit (p=0.133) ve bütirik asidin molar konsantrasyonunu (p=0.089) etkilemezken, amonyak konsantrasyonu (p=0.001) azaldı ve toplam VFA konsantrasyonu (p=0.003) arttı. Asetatın propiyonata oranı, propiyonat konsantrasyonunun artmasına bağlı olarak azaldı (p=0.034). Elde edilen sonuçlar, N-Se takviyesinin rumen fermantasyonunu ve metabolik durumu olumlu yönde iyileştirdiğini gösterdi. N-Se'nin koyunlarda alternatif bir selenyum kaynağı olarak kullanılabileceği sonucuna varıldı.

Anahtar Kelimeler

• Dorper koyunu
• Nanomineral
• Nano selenyum
• Rumen

Kaynakça

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