İki farklı dönemde hasat edilen kenger otunun (Gundelia tournefortii l.) silolanma olanakları
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Dosyalar
Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Ege Üniversitesi, Fen Bilimleri Enstitüsü
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışmanın amacı, farklı dönemlerde hasat edilen kenger otunun (Gundelia tournifortii L.) silaj formunda alternatif kaba yem kaynağı olarak yem değerini ortaya koymaktır. Bu amaçla, kenger otu çiçeklenme öncesi ve sonrasında hasat edilmiş, kabaca parçalanmış ve 2 günlük soldurulmanın ardından, 2 L lik plastik bidonlara silolanmıştır. Denemede tekerrür sayısı 5 ve silolama süresi 60 gün olmuştur. Çalışmadan elde edilen bulgulara göre, çiçeklenme öncesi kenger silajının kuru madde içeriğinin (% 11.95), çiçeklenme sonrasına göre (% 18.15) düşük olduğu görülmüştür (P<0.05). Diğer yandan, silajların OM, HK ve HP içerikleri arasındaki fark önemli (P<0.05), HY, HS, NÖM içerikleri ile ME değerleri arasındaki fark önemsiz bulunmuştur (P>0.05). Buna göre, her iki dönem silajının OM, HK, HP, HY, HS ve NÖM içerikleri sırasıyla; % 66.44-73.06, 23.51-18.69, 13.70-17.52, 4.06-3.12, 33.19-31.66 ve 15.49-20.77, ME değerleri ise 8.80-9.31 MJ/kg KM olmuştur. Silajların her iki dönem için NDF, ADF, ADL içerikleri ise sırasıyla; % 49.22-48.96, 42.22-38.99 ve 5.86-5.01 olup, aralarındaki fark önemsiz bulunmuştur (P>0.05). Fermentasyon kalitesi bakımından, çiçeklenme öncesi kenger silajında pH değeri (p<0.05) ile AA ve BA oranlarının yüksek (p>0.05), LA oranının ise düşük olduğu görülmüştür (P<0.05). Sonuç olarak, kenger otu silajının ortalama besin madde içeriklerinin çayır otu silajına yakın değerde olduğu görülmüştür. Buna göre, kenger otu silajının kışın suca zengin alternatif kaba yem kaynağı olarak kullanılabileceği ve silolama için en uygun zamanın çiçeklenme sonrası olduğu söylenebilir. Bununla birlikte, silajın KM içeriğini artırmak ve fermentasyon kalitesini iyileştirmek için bazı dolgu maddeleri ya da fermente uyarıcılarla silolanması önerilebilir.
The aim of this study was to determine as an alternative forage source the feed value of tumbleweed silage which was harvested at different periods. For this purpose, tumbleweed was harvested pre- and post-bloom, roughly cutted, wilted for 2 days and then ensiling into 2 L plastic drums. The experiment was carried out with 5 replications and ensiling time was 60 days. According to the findings, DM content of pre-bloom silage (11.95%) was lower than from post-bloom (18.15%) (P<0.05). However, the differences between OM, CA and CP content were statistically significant (P<0.05), whereas differences between EE, CF, NFE content and ME value were not significant (P>0.05). Accordingly, for each two periods, OM, CA, CP, EE, CF, NFE were respectively 66.44-73.06, 23.51-18.69, 13.70-17.52, 4.06-3.12, 33.19-31.66, 15.49-20.77 % and ME values were 8.80-9.31 MJ / kg DM contents in the silages. NDF, ADF, ADL were also respectively; 49.22-48.96, 42.22-38.99, 5.86-5.01% contents in the silages and the difference between them were not significant (P> 0.05). As the silages were examined for fermentation quality, it was observed that in pre-bloom silage pH value (p<0.05), AA and BA ratios were higher (P> 0.05) and LA ratio was lower (P <0.05) than from post-bloom. In conclusion, average crude nutrients of tumbleweed silage were found to be close to meadow silage. So that, it was concluded that tumbleweed silage can be used as an alternative source of roughage in winter and the most appropriate time for ensiling is after flowering. In addition this, it is recommended that to ensile with filling material for increasing DM contents in silage and to use fermentation stimulants for improving fermentation quality.
The aim of this study was to determine as an alternative forage source the feed value of tumbleweed silage which was harvested at different periods. For this purpose, tumbleweed was harvested pre- and post-bloom, roughly cutted, wilted for 2 days and then ensiling into 2 L plastic drums. The experiment was carried out with 5 replications and ensiling time was 60 days. According to the findings, DM content of pre-bloom silage (11.95%) was lower than from post-bloom (18.15%) (P<0.05). However, the differences between OM, CA and CP content were statistically significant (P<0.05), whereas differences between EE, CF, NFE content and ME value were not significant (P>0.05). Accordingly, for each two periods, OM, CA, CP, EE, CF, NFE were respectively 66.44-73.06, 23.51-18.69, 13.70-17.52, 4.06-3.12, 33.19-31.66, 15.49-20.77 % and ME values were 8.80-9.31 MJ / kg DM contents in the silages. NDF, ADF, ADL were also respectively; 49.22-48.96, 42.22-38.99, 5.86-5.01% contents in the silages and the difference between them were not significant (P> 0.05). As the silages were examined for fermentation quality, it was observed that in pre-bloom silage pH value (p<0.05), AA and BA ratios were higher (P> 0.05) and LA ratio was lower (P <0.05) than from post-bloom. In conclusion, average crude nutrients of tumbleweed silage were found to be close to meadow silage. So that, it was concluded that tumbleweed silage can be used as an alternative source of roughage in winter and the most appropriate time for ensiling is after flowering. In addition this, it is recommended that to ensile with filling material for increasing DM contents in silage and to use fermentation stimulants for improving fermentation quality.
Açıklama
Anahtar Kelimeler
Kenger Otu, Gundelia Tournefortii, Alternatif Kaba Yem, Silaj, Tumbleweed, Alternative Forage, Silage
