Betul Zehra SARİCİCEK, Birgül YILDIRIM, Zahide KOCABAS, Emel Ozgumus DEMİR

Effect of Storage Time on Nutrient Composition and Quality Parameters of Corn Silage

Bu çalışma; mısır silajının besin madde kompozisyonu ve silaj kalite parametreleri üzerine depolama süresinin etkisinin belirlenmesi amacıyla yapılmıştır. Silaj materyali olarak mısır kullanılmıştır. Mısır hamur olumu devresinde (%31.41 kuru madde) hasat edilmiş ve 90, 104, 118, 132, 146, 160, 174, 188 ve 202 gün 3 hendek siloda fermentasyona bırakılmıştır. Örnekler 14 günde bir alınarak analiz için laboratuvara getirilmiştir, işlem 9 kere tekrarlanmıştır. Silajın ham protein (HP), ham yağ (HY), ham kül (HK) ve ham sellüloz (HS) içeriğinde 120 günden sonra azalma, NÖM içeriğinde ise artış olmuştur. Silajın laktik asit (LA) konsantrasyonu 108 güne kadar artmasına rağmen 108-150. günlerde düşmüştür. Depolama süresine bağlı olarak LA içeriğinde azalmanın aksine asetik asit (AA) konsantrasyonunda artış olmuştur. Silajın amonyak azotu ve CO2 konsantrasyonu depolama süresine bağlı olarak artış göstermiştir. Flieg puanı bakımından depolama süresinin etkisi önemli bulunmamıştır. Bu çalışmada, silajın depolama süresi uzadıkça besin madde içeriği ve fermentasyon özelliklerinde değişim gözlenmiştir

Mısır Silajının Besin Madde Kompozisyonu ve Silaj Kalite Parametreleri Üzerine Depolama Süresinin Etkileri

This study was carried out to determine the effects of storage duration on nutrient composition and silage quality parameters. Corn was used as silage material. Corn (31.41% dry matter) was harvested at the dough stage and fermented for 90, 104, 118, 132, 146, 160, 174, 188 and 202 daysin three trench silos. The samples were brought to laboratory every 14 days. This process was repeated 9 times. After the 132thday, whereas silage crude protein (CP), ether extract (EE), ash and crude fiber (CF) contents decreased, nitrogen free extract (NFE) content increased. Lactic acid concentration of corn silage increased until the 118thday but decreased between the 118th and the 160thdays. On the contrary, of decrease in LA concentration, acetic acid concentration increased depending on storage time. Ammonia nitrogen and CO2concentration of silage increased decreased with progressing time. Storage time had significant influence on Flieg scores. The lowest score was found between days the 104th-118th. In this research, it was observed that there was a change in silage nutrient contents and fermentation characteristics with increasing storage time.

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