Türkiye’nin Akdeniz Bölgesinde Yetişen Bazı Baklagil Ağaç Yapraklarının Yem Değerleri ve İn Vitro Fermantasyon Özellikleri

Bu çalışma, bazı baklagil ağaçlarından (Robinia pseudoecacia Umbracuifera, Robinia hispida, Robinia pseudoacacia, Albizia julibrissin, Leucaena leucocephala, Gleditsia triacanthos and Ceratonia silique) toplanan yapraklarının besin kompozisyonunu, sindirim derecesini ve in vitro gaz üretimini (GÜ), metan), metan üretimini (MÜ) ve mikrobiyal protein (MP) üretimini belirlenmek için yapılmıştır. Fermantasyon parametreleri belirlemek için, yaprak örnekleri, in vitro GÜ tekniği kullanılarak rumen sıvısı ile anaerobik koşullar altında 39 °C de 24 saat boyunca inkübe edilmiştir. Veriler, tesadüf blokları deneme desenine göre varyans analizine tabi tutulmuştur. Baklagil ağaç yapraklarının ham protein içerikleri %8.43 ile 18.88 arasında değişmiş olup, en yüksek protein içeriğine pembe çiçekli akasya sahip olmuştur. Baklagil ağaç yapraklarının gaz üretimi, metan üretimi ve ME değerleri sırasıyla 51.00 ml ile 70.20 ml, 5.78 ml ile 10.47 ml, 5.69 MJ/kg ile 7.34 MJ/kg değerler arasında değişmiştir. Ağaç yapraklarının GSD %37.36 ile 65.25 arasında değişmiş olup en düşük keçiboynuzu yaprağında bulunurken en yüksek gülibrişim yaprağında bulunmuştur. Ağaç yapraklarının gerçek sindirilebilir kuru madde (GSKM), paritioning faktör (PF), MP ve mikrobiyal protein sentezleme etkinliği (MPSE) sırasıyla 188.63 mg ile 329.92 mg, 3.61 ile 6.02, 73.79 g/KM ile 193.66 g/KM, %38.88 ile 63.25 arasında değişmiştir. Sonuç olarak, baklagil ağaç yapraklarının ruminant hayvanların yaşama ve verim payı protein ve metabolik enerji ihtiyacını karşılayacak potansiyele sahip olduğu belirlenmiştir.

Nutritive Values and In Vitro Fermentation Characteristics Of Some Legume Tree Leaves Grown In Mediterranean Region Of Turkey

The current study was carried out to determine the chemical composition, digestibility, in vitro gas production, methane production and microbial protein production of leaves collected from some legume trees (Robinia pseudoecacia Umbracuifera, Robinia hispida, Robinia pseudoacacia, Albizia julibrissin, Leucaena leucocephala, Gleditsia triacanthos and Ceratonia silique). Tree leaves were incubated with buffered rumen fluid under anaerobic condition at 39 oC h for 24 h to determine the fermentation parameters. Data were subjected to variance analysis using randomised block design. The crude protein content of the studied leaves ranged between 8.43% and 18.88% and the highest protein content was found in the leaves of Robinia hispida. Gas production, methane production and metabolizable energy of the leaves ranged from 51.00 ml to 70.20 ml, 5.78 ml to 10.47 ml, 5.69 MJ /kg DM to 7.34 MJ / kg DM, respectively. The in vitro true digestibility of tree leaves ranged from 37.36 to 65.25% and the lowest true digestibility was found in the Ceratonia siliqua leaves while the highest was found in the Albizia julibrissin leaves. True digestible dry matter, partitioning factor, microbial protein and efficiency of microbial protein synthesis of tree leaves ranged from 188.63 mg to 329.92 mg, 3.61 to 6.02, 73.79 g/DM to 193.66 g/DM, 63 to 38.88%, respectively. It was found that tree leaves studied in the current experiment have the potential to meet the metabolisable energy and protein requirements of the maintenance and production of a ruminant animal.

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