In Vitro Rumen Fermentation of Maize Hay and Bajra Straw Based Total Mixed Ration Containing Different Feed Additives
DOI:
https://doi.org/10.48165/ijvsbt.21.1.05Keywords:
Feed additives, Goat, Rumen fermentation, Total mixed rationAbstract
The present study was conducted to investigate the efficacy of different feed additives on rumen fermentation of total mixed ration. TMR was prepared by taking maize hay, bajra straw and concentrate in the ratio of 30:30:40, and additives monensin 30 mg/kg (T1), cellulase 0.5%, (10,00,000 IU/g) (T2), xylanase 0.5% (1,50,000 IU/g) (T3), chitosan 1% (T4), sodium bicarbonate 1% (T5), magnesium oxide 1% (T6), combination of sodium bicarbonate + magnesium oxide 0.5% each (T7) and combination of cellulose + xylanase 0.5% each (T8) were added as eight treatments. Rumen liquor was collected from two adult Surti goats 2 h of post-feeding. All post-fermentation parameters were measured after 24 h of incubation. pH was significantly (p<0.01) increased in T7 (6.87±0.03) as compared to control and it was at par with T5 (6.83±0.03) and T6 (6.83±0.03). TVFAs (mMol/dL) was significantly (p<0.01) increased in T8 (11.64±0.24) as compared to other treatments and control. This was followed by T2 (9.87±0.48), T3 (9.16±0.16) and T4 (9.47±0.61) which also had significantly (p<0.01) higher TVFAs. NH3-N (mg/dL) was significantly (p<0.01) increased in T8 (48.67±3.52) as compared to control and it was at par with T2 (43.33±2.40). Total-N was significantly (p<0.01) increased in T8 (99.87±5.19) as compared to control and it was at par with T2 (96.13±5.19), T3 (91.47±4.06) and T4 (92.40±4.27). TCA-N was significantly (p<0.01) increased in T8 (70.93±4.93) as compared to control and it was at par with T2 (65.33±3.36) and T4 (60.67±4.06). Looking to the overall results it could be inferred that combination of cellulase and xylanase is the best feed additives among all and can be incorporated in the feed at the level of 0.5% each to alter the rumen fermentation & efficient nutrient utilization.Downloads
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