Türk Tarım ve Doğa Bilimleri Dergisi

Yazarlar: Emre GÜLEÇYÜZ, Ünal KILIÇ

Konular:-

Anahtar Kelimeler:Gas production,Digestibility,Soybean straw,Wheat straw,Methane,Molasses,Guar meal

Özet: In this study, it was aimed to determine the effects of pelletting on the in vitro gas productions (IVGP), in vitro digestibilities and methane productions of wheat straw and soy straw pelletted with different additives such as molasses, guar meal and sepolite. In the study, 2x2x4 factorial experimental design was used and total 16 groups (2 straws (wheat-soybean), 2 different sepiolite applications (absent-present) and 4 additives (control, guar meal,molasses and guar meal +molasses) were formed.The gas productions, gas production parameters, organic material digestibilities (OMD), metabolizable energy (ME) and net energy lactation (NEL) contents of feeds were determined by using in vitro gas production tecnique. Methane productions were determined by using infrared methane analizator. The sepiolite addition increased in vitro gas production (IVGP) in soybean straws as opposed to wheat straw (P<0.01). The molasses addition did not affect IVGP in soybean straws, but sepiolite addition increased IVGP at all incubation times in groups supplemented with guar meal+molasses. The sepiolite addition decreased OMD in wheat straws, but in soy straws OMD increased in groups supplemented with guar meal+molasses due to sepiolite addition. Sepiolite addition increased IVGP and methane production in soybean straws and decreased in wheat straws (P<0.01). In conclusion, it can be said that molasses and guar meal added in wheat and soy straws increased their feed values and that these feed sources can be used to close the forage shortage in winter. It was also concluded that, 2% sepiolite addition in wheat straws provide environmental benefits by decreasing methane production.

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