Effect of level of dry matter and source of soluble carbohydrate on chemical composition of corn Stover silage

الملخص EN

The study was conducted in the nutrition laboratory belongs to the Animal Production Department - College of Agriculture/Al-Qasim Green University to investigate the effect of the level of dry matter (DM) of yellow corn stover (YCS), 25, 30, 35 and 40% and the soluble carbohydrates sources (SCS), cane molasses (C-M), date molasses (D-M) and corn flour (C-F) on the chemical composition of produced silage.

The results showed that the increase in the level of DM of those materials led to a significant increase (P<0.01) in the DM and ash contents of silage samples produced, while its crude protein (CP) content was decreased (P<0.01) especially in the samples made with a level of 35% DM in which this content was decreased to 5.86% .

The percentages of cell wall components were also decreased with the increasing of the DM level, samples of silage made with the levels of 35 and 40% DM were characterized by the lower (P<0.01) content of the neutral detergent fiber (NDF) of 63.64 and 64.71% respectively.

The lower (P<0.01) content of the acid detergent fiber extract (ADF, 33.33% ) was found in samples made with a level of 35% DM.

While the higher (P<0.01) content of hemicellulose (33.20% ) was associated with the samples made with a level of 25% DM.

With regard to the effect of the SCS, the results showed that a higher (P<0.01) DM content was associated with the silage samples made by the addition of C-F, while the CP content was significantly (P<0.01) increased to 6.25 and 6.34% in the samples made by the addition of C-M and C-F respectively.

It was also observed that the addition of C-M and D-M led to a significant decrease (P<0.01) in the NDF, ADF and hemicellulose contents.

While the addition of C-F led to a significant decrease (P<0.01) in the content of lignin (ADL) to 17.11% and cellulose to The study was conducted in the nutrition laboratory belongs to the Animal Production Department - College of Agriculture/Al-Qasim Green University to investigate the effect of the level of dry matter (DM) of yellow corn stover (YCS), 25, 30, 35 and 40% and the soluble carbohydrates sources (SCS), cane molasses (C-M), date molasses (D-M) and corn flour (C-F) on the chemical composition of produced silage.

The results showed that the increase in the level of DM of those materials led to a significant increase (P<0.01) in the DM and ash contents of silage samples produced, while its crude protein (CP) content was decreased (P<0.01) especially in the samples made with a level of 35% DM in which this content was decreased to 5.86% .

The percentages of cell wall components were also decreased with the increasing of the DM level, samples of silage made with the levels of 35 and 40% DM were characterized by the lower (P<0.01) content of the neutral detergent fiber (NDF) of 63.64 and 64.71% respectively.

The lower (P<0.01) content of the acid detergent fiber extract (ADF, 33.33% ) was found in samples made with a level of 35% DM.

While the higher (P<0.01) content of hemicellulose (33.20% ) was associated with the samples made with a level of 25% DM.

With regard to the effect of the SCS, the results showed that a higher (P<0.01) DM content was associated with the silage samples made by the addition of C-F, while the CP content was significantly (P<0.01) increased to 6.25 and 6.34% in the samples made by the addition of C-M and C-F respectively.

It was also observed that the addition of C-M and D-M led to a significant decrease (P<0.01) in the NDF, ADF and hemicellulose contents.

While the addition of C-F led to a significant decrease (P<0.01) in the content of lignin (ADL) to 17.11% and cellulose to 11.17% .