Şeker Pancarı Posasında Bulunan Oksalatın Toksik Etkisinin Silolama ve Ca ilavesi ile Giderilmesi

Öz

Bu çalışma, şeker pancarı posasının (ŞPP) silolama ve silolama sırasında kalsiyum (Ca) ilavesinin çözünebilir oksalat üzerine etkilerini belirlemek ve bu silajın koyunlar üzerindeki etkilerini belirlemek amacıyla yapılmıştır. Çalışma iki deneme halinde yürütülmüştür. İlk deneme tek başına ŞPP silajı ile farklı kuru madde ve Ca seviyelerinde üre, melas ve saman ilavesi ile laboratuvar silajları olarak hazırlanmıştır. 120 günlük fermentasyondan sonra Fleig puanları, fiziksel özellikler, Weende analizleri ve oksalat analizleri yapılmıştır. Bu laboratuvar denemesi, silolama ve Ca ilavesinin çözünür oksalat miktarının, ruminantlar için toksik olmayan seviyelere düşürülebileceğini göstermiştir. İkinci deneme için birinci denemenin sonuçlarına göre %30 kuru madde (DM) ve 45 mg/kg ŞPP Ca içeren ŞPP silajı hazırlanmıştır. Bu silaj altı gruba ayrılan 36 koyuna yedirilmiştir. Deneme süresince 14 günde bir kan örnekleri ve rumen sıvısı alınmış, vücut ağırlıkları kontrol edilmiştir. Yapılan iki denemenin sonuçları, ŞPP'nin çözünür oksalat miktarının rumen tarafından tolere edilebilir bir düzeye düşürülebileceğini göstermiştir. Bu nedenle, ŞPP’na arpa samanı, melas, üre ve kalsiyum kaynağı olarak dikalsiyum fosfat (DCP) ilavesi ile silajlanarak çözünür oksalat düzeylerinin toksik seviyelerin altına düşürülebileceği ve koyun rasyonlarına %60 oranında katılabileceği kanaatine varılmıştır.

Anahtar Kelimeler

• okzalat
• toksik
• şeker pancarı posası
• silaj

Inhibition of Toxic Effects of Oxalate in Sugar Beet Pulp with Adding Ca During Ensiling

Öz

This study was carried out to eliminate the toxic effect of soluble oxalate in sugar beet pulp (SBP) by ensiling and adding Ca during ensiling and to determine the effects of the obtained silage on sheep. The study was based on two experiments. For the first experiment, the laboratory silages were prepared as SBP alone with the addition of molasses and straw at different levels of dry matter and Ca. After fermentation for 120 days, the Fleig scores, physical properties, Weende analysis, and oxalate analysis were performed. This laboratory trial showed that the content of the soluble oxalate could be reduced to nontoxic levels by ensiling and adding Ca. For the second experiment, SBP silage with 30% dry matter (DM) and 45 mg/kg SBP were prepared according to the results of the first experiment. This silage was fed to 36 sheep divided into six groups. During the experiment, blood samples and rumen fluid was collected every 14 days during the experiment, and the body weights were controlled. The results of this experiment showed that the soluble oxalate amount of SBP decreased to a tolerable level by the rumen. Thus, ensiling SBP with barley straw, molasses, urea, and di-calcium phosphate (DCP), as a calcium source, showed that soluble oxalate levels of SBP could be reduced levels below the toxic levels, and added to sheep ratio as 60%.

Anahtar Kelimeler

• oxalate
• toxic
• şeker pancarı posası
• silage

Kaynakça

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