The Effect of Graded Levels of Crude Glycerin in BRS Capiaçu Grass Silage: Fermentation Profile and Bromatological Composition

الموضوعات :

م.سی.آ. سیلوا ¹ (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
ن.م. کستا ² (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
جی.پی.اس. ریگوریا ³ (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
د.ل.اس. جسوس ⁴ (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
ن.ب.اس. سیلوا ⁵ (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
و.اس. سیلوا فیلهو ⁶ (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
جی.ت. سیلوا ⁷ (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
جی.جی.اس. آرایوجو ⁸ (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
وی.ر. روچا جونیور ⁹ (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
د.د. آلوز ¹⁰ (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
جی.م.آ. چامون ¹¹ (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)
اف.پی. مونکااُ ¹² (Department of Animal Science, Faculty of Agricultural Science, State University of Montes Claros (Unimontes), Avenida Reinaldo Vianna, Morada do Sol, Janaúba, Minas Gerais, Brazil)

تاريخ الإرسال : 05 الأربعاء , ربيع الثاني, 1440 تاريخ التأكيد : 25 السبت , جمادى الثانية, 1440 تاريخ الإصدار : 04 الأحد , ربيع الثاني, 1441

الکلمات المفتاحية: dry matter, glycerol, effluent loss, total digestible nu-trients, <i>Pennisetum purpureum</i>,

ملخص المقالة :

The objective of this study was to evaluate the effect of crude glycerin inclusion levels on BRS Capiaçu grass (Pennisetum purpureum) silage on the parameters of fermentation and chemical-bromatological composition. Experimental treatments consisted of BRS Capiaçu grass silage with five levels of inclusion of crude glycerin (0, 1, 5, 10 and 15% inclusion in the natural matter) during ensiling. In this study, a completely randomized design was used along with five treatments and six replicates. The inclusion of crude glycerin in BRS capiaçu grass silage linearly reduced pH (P<0.01) and effluent losses (P<0.01). For each percentage unit of glycerin addition, there was a reduction of 0.013 pH units and 0.0485% of the effluent losses. There was no effect of crude glycerin on the ammoniacal nitrogen content (P=0.82, an average of 6.65% of the total nitrogen). The variation in the dry matter content between the highest glycerin inclusion dose (15% of natural matter) and the control group (without glycerin) was 30.5%. The crude protein content (P=0.01), ash (P<0.01), neutral detergent fiber (NDF; P<0.01), neutral detergent fiber corrected for ash and crude protein (NDFap; P<0.01) and acid detergent fiber (ADF; P<0.01) linearly reduced with the inclusion of crude glycerin compare to the control group. In the same order, there was a reduction of 0.115%, 0.08%, 1.95%, 1.84% and 1.06%, respectively, for each percentage unit of glycerin added. The addition of crude glycerin in elephant grass silage vs. BRS Capiaçu up to 15% of the natural material had improved the fermentation profile and the chemical-bromatological composition.

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