<abstract xmlns="http://www.w3.org/1999/xhtml">Silages of hybrids of napier grass (CO-3 or CO-4) and sorghum and their combinations (50% napier grass hybrid + 50% of sorghum) were tested under three cutting intervals (4, 6 and 8 weeks). Sorghum silage had a leafy and soft texture with a fruity smell, which proved its desirable character with normal lactic acid fermentation. As such, it was with its comparatively higher dry matter content at the 6 or 8 weeks cutting interval, more suitable for ensiling. The crude protein concentration was not modified by the ensiling process, which was proved by the low ammoniacal nitrogen content. Sorghum silage had lower pH values at all three cutting intervals. On the basis of the NH3-N/TN content (&lt;10%), all silages could be considered as of good quality. Sorghum silage could be considered as the best among tested silages as compared with hybrid napier var. CO-3 or CO-4. The optimum quality of the sorghum silage with the highest soluble carbohydrates concentration and lactic acid >3% could be obtained at the 6-week cutting interval.</abstract>

Silages of hybrids of napier grass (CO-3 or CO-4) and sorghum and their combinations (50% napier grass hybrid + 50% of sorghum) were tested under three cutting intervals (4, 6 and 8 weeks). Sorghum silage had a leafy and soft texture with a fruity smell, which proved its desirable character with normal lactic acid fermentation. As such, it was with its comparatively higher dry matter content at the 6 or 8 weeks cutting interval, more suitable for ensiling. The crude protein concentration was not modified by the ensiling process, which was proved by the low ammoniacal nitrogen content. Sorghum silage had lower pH values at all three cutting intervals. On the basis of the NH3-N/TN content (<10%), all silages could be considered as of good quality. Sorghum silage could be considered as the best among tested silages as compared with hybrid napier var. CO-3 or CO-4. The optimum quality of the sorghum silage with the highest soluble carbohydrates concentration and lactic acid >3% could be obtained at the 6-week cutting interval.

Evaluation of silages of hybrids of napier grass and sorghum in the low country wet zone of Sri Lanka

Department of Animal Science, Faculty of Agriculture

Institute of Animal Nutrition and Functional Plant Compounds

<trans-abstract xml:lang="de" xmlns="http://www.w3.org/1999/xhtml">Silagen von Hybriden von Napiergras (CO-3 oder CO-4) und Sorghum und deren Kombinationen (50 % Napiergras-Hybrid + 50 % Sorghum) wurden bei drei Schnittfrequenzen (4, 6 und 8 Wochen) getestet. Sorghumsilage hatte eine blättrige und weiche Textur mit einem fruchtigen Geruch, der seinen wünschenswerten Charakter bei normaler Milchsäuregärung bewies. Als solches war sie mit ihrem vergleichsweise höheren Trockensubstanzgehalt bei den 6- oder 8-wöchigen Schnittfrequenzen besser zum Silieren geeignet. Der Rohproteingehalt wurde durch den Silierprozess nicht verändert, was durch den niedrigen Gehalt an Ammoniumstickstoff belegt wurde. Sorghumsilage hatte bei allen drei Schnittfrequenzen niedrigere pH-Werte. Bezogen auf den NH3-N/TN-Gehalt (&lt;10 %) können alle Silagen als von guter Qualität angesehen werden. Sorghumsilage kann als die beste unter den getesteten Silagen im Vergleich zu Hybrid-Napiersorten angesehen werden. Die optimale Qualität der Sorghumsilage mit der höchsten Konzentration an löslichen Kohlenhydraten und Milchsäure >3 % konnte bei einer Schnittfrequenz von 6 Wochen erzielt werden.</trans-abstract>

Silagen von Hybriden von Napiergras (CO-3 oder CO-4) und Sorghum und deren Kombinationen (50 % Napiergras-Hybrid + 50 % Sorghum) wurden bei drei Schnittfrequenzen (4, 6 und 8 Wochen) getestet. Sorghumsilage hatte eine blättrige und weiche Textur mit einem fruchtigen Geruch, der seinen wünschenswerten Charakter bei normaler Milchsäuregärung bewies. Als solches war sie mit ihrem vergleichsweise höheren Trockensubstanzgehalt bei den 6- oder 8-wöchigen Schnittfrequenzen besser zum Silieren geeignet. Der Rohproteingehalt wurde durch den Silierprozess nicht verändert, was durch den niedrigen Gehalt an Ammoniumstickstoff belegt wurde. Sorghumsilage hatte bei allen drei Schnittfrequenzen niedrigere pH-Werte. Bezogen auf den NH3-N/TN-Gehalt (<10 %) können alle Silagen als von guter Qualität angesehen werden. Sorghumsilage kann als die beste unter den getesteten Silagen im Vergleich zu Hybrid-Napiersorten angesehen werden. Die optimale Qualität der Sorghumsilage mit der höchsten Konzentration an löslichen Kohlenhydraten und Milchsäure >3 % konnte bei einer Schnittfrequenz von 6 Wochen erzielt werden.

Die Bodenkultur: Journal of Land Management, Food and Environment

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Bewertung von Silagen von Hybriden von Napiergrass und Sorghum in der Feuchtzone des Tieflands von Sri Lanka

Silages of hybrids of napier grass (CO-3 or CO-4) and sorghum and their combinations (50% napier grass hybrid + 50% of sorghum) were tested under three cutting intervals (4, 6 and 8 weeks). Sorghum silage had a leafy and soft texture with a fruity smell, which proved its desirable character with normal lactic acid fermentation. As such, it was with its comparatively higher dry matter content at the 6 or 8 weeks cutting interval, more suitable for ensiling. The crude protein concentration was not modified by the ensiling process, which was proved by the low ammoniacal nitrogen content. Sorghum silage had lower pH values at all three cutting intervals. On the basis of the NH3-N/TN content (3% could be obtained at the 6-week cutting interval.

Silages of hybrids of napier grass (CO-3 or CO-4) and sorghum and their combinations (50% napier grass hybrid + 50% of sorghum) were tested under three cutting...

Evaluation of silages of hybrids of napier grass and sorghum in the low country wet zone of Sri Lanka

Article Category: Research Article

Published Online: Jun 22, 2020

Page range: 11 - 18

Received: Aug 21, 2019

Accepted: Jan 13, 2020

DOI: https://doi.org/10.2478/boku-2020-0002

Keywords
ammonia nitrogen, cutting interval, lactic acid, soluble carbohydrates

© 2020 Thakshala Rupanjanie Seresinhe et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Evaluation of silages of hybrids of napier grass and sorghum in the low country wet zone of Sri Lanka

Article Category: Research Article

Published Online: Jun 22, 2020

Page range: 11 - 18

Received: Aug 21, 2019

Accepted: Jan 13, 2020

DOI: https://doi.org/10.2478/boku-2020-0002

Keywordsammonia nitrogen, cutting interval, lactic acid, soluble carbohydrates

© 2020 Thakshala Rupanjanie Seresinhe et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
ammonia nitrogen, cutting interval, lactic acid, soluble carbohydrates