Publication: Melas ve Mikrobiyal İnokülant İlaveli Guar Fasulyesi ve Sorgum Silajlarının Yem Değerinin İn Vitro Yöntemlerle Belirlenmesi
Abstract
Bu çalışmada mikrobiyal inokülant ve melasın guar fasulyesi (GFS), sorgum (SS) ve guar fasulyesi+sorgum (GSS, 1:1) ekim alanlarından elde edilen materyallerden yapılan silajlarda, besin madde içerikleri, silaj kalitesi, in vitro gaz üretim parametreleri, metan üretimleri ve in vitro sindirilebilirlikleri üzerindeki etkisi araştırılmıştır. Silajların gaz üretimlerinin ve sindirilebilirliklerin belirlenmesinde sırasıyla in vitro (Hohenheim) gaz üretim tekniği ve Daisy inkübatör kullanılmıştır. Ham protein (HP) içeriği ve nispi yem değeri (NYD) bakımından GFS diğer silajlardan daha yüksek bir değere sahip olmuştur (P<0.05). Karışık ekimde beklenildiği gibi HP içeriği tek başına sorgum içeren gruplara kıyasla daha yüksek bulunmuştur. Silaj katkı maddeleri bakımından da melas ve melas+inokülant ilaveli gruplar daha yüksek HP içeriğine (P<0.05) sahip olmuştur. Melas ve melas +inokülant ilavesinin sadece inokülant ilavesine göre silaj kalitesini artırdığı belirlenmiştir. Metan üretimi bakımından inokülant ilaveli GFS'nin, diğer tüm silajlardan daha düşük değere sahip olduğu saptanmıştır (P<0.05). Melas+inokülant, GFS'nin in vitro gerçek sindirilebilirlik değerini diğer silaj katkı maddelerine kıyasla daha fazla arttırırken; guar+sorgum karışık ekim sadece inokülant ilaveli silajlar ise diğer silajlara kıyasla düşürmüştür (P<0.05). Bu çalışma sonuçları kullanılan silaj katkı maddelerinin (özellikle melas+inükulant) GFS'nin incelenen silaj parametrelerinin üzerinde daha etkin olduğu ve dolayısıyla bu katkı maddesi ile guar fasulyesinden başarıyla silaj yapılabildiğini göstermiştir. Ayrıca sorgum ve guar fasülyesi karışık ekiminin hem yem değerini hem de yapılan silajların kalitesini artırdığı ve baklagil olması sebebiyle tek başına zor silolanan guar fasulyesinin karışık ekim sayesinde katkı maddesi katılmaksızın silolanabileceği gerek duyusal analizlere gerekse Flieg puanına göre kalite sınıfının yükseldiği görülnüştür. Anahtar Sözcükler: İn vitro gaz üretimi, inokülant, melas, metan, guar fasulyesi, sorgum, silaj
In this study, it was investigated the effect of microbial inoculant and molasses on nutrient content, silage quality, in vitro gas production parameters, methane production, and in vitro digestibility in silages made from the guar bean (GBS), sorghum (SS) and guar bean+sorghum mixed cropping (GSS, 1:1). The in vitro gas production technique (Hohenheim) and Daisy incubator were used to determine the gas production and digestibility of the silages, respectively. In terms of crude protein (CP) content and relative feed value (RFV), GBS had a higher value compared to other silages (P<0.05). As expected, the CP content was found to be higher in the mixed planting compared to groups containing sorghum alone. Regarding silage additives, the groups with molasses and molasses + inoculant showed higher CP content (P<0.05). It was determined that the addition of molasses and molasses+inoculant enhanced silage quality compared to the addition of inoculant alone. It was observed that GBS with inoculant had a lower methane production compared to all other silages (P<0.05). The addition of molasses+inoculant increased the in vitro true digestibility of GBS significantly compared to other silage additives, whereas the intercropping of guar+sorghum with only inoculant decreased it compared to other silages (P<0.05). The results of this study indicate that the silage additives used, especially molasses+inoculant, were more effective on the examined silage parameters of GBS. Consequently, this additive allowed successful silage production from guar beans. Furthermore, the mixed planting of sorghum and guar beans improved both the feed value and the quality of the produced silages. As a leguminous crop, guar beans, which are difficult to ensile alone, could be ensiled without the addition of additives through mixed cropping. The improvement in the quality classification of the silage is evident through both sensory analysis and the Flieg score. Keywords: In vitro gas production, Inoculant, Molasses, Methane, Guar bean, Sorghum, Silage
In this study, it was investigated the effect of microbial inoculant and molasses on nutrient content, silage quality, in vitro gas production parameters, methane production, and in vitro digestibility in silages made from the guar bean (GBS), sorghum (SS) and guar bean+sorghum mixed cropping (GSS, 1:1). The in vitro gas production technique (Hohenheim) and Daisy incubator were used to determine the gas production and digestibility of the silages, respectively. In terms of crude protein (CP) content and relative feed value (RFV), GBS had a higher value compared to other silages (P<0.05). As expected, the CP content was found to be higher in the mixed planting compared to groups containing sorghum alone. Regarding silage additives, the groups with molasses and molasses + inoculant showed higher CP content (P<0.05). It was determined that the addition of molasses and molasses+inoculant enhanced silage quality compared to the addition of inoculant alone. It was observed that GBS with inoculant had a lower methane production compared to all other silages (P<0.05). The addition of molasses+inoculant increased the in vitro true digestibility of GBS significantly compared to other silage additives, whereas the intercropping of guar+sorghum with only inoculant decreased it compared to other silages (P<0.05). The results of this study indicate that the silage additives used, especially molasses+inoculant, were more effective on the examined silage parameters of GBS. Consequently, this additive allowed successful silage production from guar beans. Furthermore, the mixed planting of sorghum and guar beans improved both the feed value and the quality of the produced silages. As a leguminous crop, guar beans, which are difficult to ensile alone, could be ensiled without the addition of additives through mixed cropping. The improvement in the quality classification of the silage is evident through both sensory analysis and the Flieg score. Keywords: In vitro gas production, Inoculant, Molasses, Methane, Guar bean, Sorghum, Silage
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