Betül Zera SARIÇİÇEK, Birgül YILDIRIM, Zahide KOCABAŞ, Emel ÖZGÜMÜŞ DEMİR

Laboratuvar Koşullarında Mini Siloda yapılan Mısır Silajının Besin Madde Kompozisyonu ve Silaj Kalite Parametrelerindeki Değişimi Üzerine Depolama Süresinin Etkisi

Bu çalışma; laboratuvar koşullarında plastik mini siloda yapılan mısır silajının, besin madde kompozisyonu vesilaj kalite parametreleri üzerine depolama süresinin etkisini belirlemek amacıyla yapılmıştır. Silaj materyali olarakmısır kullanılmıştır. % 31.87 Kuru madde (KM) içerikli Mısır hamur olumu devresinde hasat edilmiş, laboratuvarkoşullarında PVC mini silolarda 90, 104, 118, 132, 146, 150, 164, 178, 182, 196 ve 202 gün silolanmıştır. Silajındepolama süresi uzadıkça kuru madde (KM) içeriğinde azalma görülmüştür. Silajın ham protein (HP), ham kül (HK)ve ham sellüloz (HS) içeriğinde depolama süresi uzadıkça azalma, NÖM içeriğinde ise artış olmuştur (P<0.05).Depolama süresi mısır silajının ham yağ (HY) içeriğinde önemli bir değişime neden olmamıştır. Silajın laktikasit (LA) konsantrasyonu depolama süresinin 104. gününe kadar artmış, 104-188. günler arasında düşmüş, 188.günden sonra tekrar artış göstermiştir (P<0.05). Depolama süresinin uzaması LA konsantrasyonunda dalgalanmayaneden olmuştur. Depolama süresine bağlı olarak AA konsantrasyonu, LA konsantrasyonunun tam tersi bir durumgöstermiştir. Silajın NH3-N konsantrasyonu 146. günde en yüksek değeri göstermiş, CO2 konsantrasyonu 160.güne kadar artmış sonra azalmıştır (P<0.05). Silajın SÇK konsantrasyonu en düşük 118. günde, en yüksek ise202 günde elde edilmiştir. Silajın pH değeri her depolama periyodu için normal sınırlar arasında kalmıştır. Mısırsilajının Flieg puanı depolama zamanı ile etkilenmiştir. Bu çalışmada, laboratuvar koşullarında mini siloda yapılanmısır silajının, depolama süresi uzadıkça besin madde kompozisyonu ve fermentasyon karakteristiklerinde değişimolduğu görülmüştür.

Anahtar Kelimeler:

Besin madde kompozisyonu, depolama zamanı, kalite parametreleri, mini silo, silaj

The Effects of Storage Time on Nutrient Composition and Silage Quality Parameters of Corn Silage Made in Plastic Mini Silo in Laboratory Conditions

This study was carried out to determine the effects of storage duration on nutrient composition andsilage quality parameters of corn silage made in plastic mini silo under laboratory conditions. Corn was used as asilage material. Corn (31.87% of dry matter) was harvested at the dough stage, and ensiled at laboratory conditionsin PVC mini silos, for 90, 104, 118, 132, 146, 160, 174, 188 and 202 days. The dry matter, crude protein, etherextract, ash and crude fber content of corn silage decreased with the longer storage time (P<0.05). However,nitrogen free extract (NFE) content showed an increase througout the storage time. Storage time didn’t signifcantlylead to change on EE content of corn silage. Lactic acid (LA) concentration of corn silage increased until the 104thday, but it decreased between 104th and 188th days (P<0.05), after which it increased again. Prolongation of storagetime gave rise to ﬂuctuation of LA concentration. Contrary to the decrease in LA concentration, acetic acid (AA)concentration increased depending on storage time. Silage NH3-N concentration was highest at the 146th day, CO2concentration increased until the 160th day, then, decreased in the other storage time (P<0.05). The lowest WSCconcentration of corn silage was found at the 118th day, but the highest at the 202th day (p<0.05). Silage pH valueswere remained at normal levels. Flieg scores of corn silage were signifcantly affected by storage time. In thisresearch, changes were observed in nutrient composition and silage fermentation characteristics with the prolongedstorage time of corn silage made in mini silos in laboratory conditions

Keywords:

Mini silo, nutrient composition, silage, storage time, quality parameters,

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