Adile TATLIYER, Adem KAMALAK, Durmuş ÖZTÜRK

Sandal Ağacı (Arbutus andrachne) Yapraklarının Potansiyel Besleme Değerinin Belirlenmesi

Bu çalışmanın amacı, hasat zamanının sandal ağacı yapraklarınınkimyasal kompozisyonuna, metabolik enerji değerine (ME) ve in vitrokuru madde sindirim derecesine (IVKMSD) olan etkisinibelirlemektir. Hasat zamanı sandal ağacı yaprağınınkompozisyonunu, İVKMSD ve ME içeriğini önemli derecedeetkilemiştir. Yaprakların İVKMSD %28.56 ile % 67.73 arasındadeğişmiş olup en yüksek İVKMSD’i Ocak ve Nisan aylarında en düşükİVKMSD’ne ise Ekim ayında hasat edilen yapraklarda bulunmuştur.Yaprakların ME içeriği % 3.11 ile %9.02 MJ/kg arasında değişmiş olupen yüksek ME Ocak ayında ve en düşük ME değeri ise Ekim ayındahasat edilen yapraklarda bulunmuştur. Sonuç olarak sandal ağacıyaprağının kimyasal kompozisyonu, IVKMSD ve ME içeriği hasatzamanına bağlı olarak değişmiştir. Dört farklı dönemde hasat edilensandal ağacının yapraklarının protein ve mineral içerikleri düşükolduğundan koyun ve keçilerin ihtiyacını karşılamak için sandalağacının yaprakları protein P, Cu ve Mn kaynakları yemeeklenmelidir.

Determination of Potential Nutritive Value of Leaves of Arbutus andrachne

The objective of this study was to determine the effect of harvest stage on the chemical composition, metabolisable energy and dry matter digestibility of A. andrachne leaves. Harvesting stage had a significant effect on the chemical composition, metabolisable energy and dry matter digestibility of leaves of A. andrachne. The IVDMD of the leaves of A. andrachne ranged from 28.56 to 67.73 %. The highest IVDMD was obtained in January and April whereas the lowest IVDMD was obtained in October. The ME contents of the leaves of A. andrachne ranged from 3.11 to 9.02 MJ/kg DM. The highest IVDMD was obtained in January whereas the lowest IVDMD content was obtained in October. As conclusion the chemical composition, IVDMD and ME content of the leaves ranged with harvesting time. Leaves of A. andrachne should be supplemented with protein, P, Cu and Mn minerals sources to meet the requirement of sheep and goat since the leaves of A. andrachne harvested in four periods were low in crude protein and minerals.

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