การใช้เมล็ดทุเรียนบดเป็นแหล่งพลังงานในอาหารข้นสำหรับแพะพื้นเมืองไทยเพศผู้

Abstract

The objective of this research was to evaluate effect of durian seed meal (DSM) substitution for ground corn (GC) in concentrate with oil palm frond silage as roughage source on feed intake, digestibility coefficient, volatile fatty acid in rumen, nitrogen balance and blood metabolite in Thai-Native male goats. Five goats with 1 years old and average body weight 24.20 ± 1.15 kg, were arranged in 5x5 Latin square design for 105 days study. The goats was fed with concentrate containing DSM at 0, 25, 50, 75 or 100% substitution for GC. The results showed that the DM, OM, CP, EE, NFE, NDF, ADF and ADL of DSM were 32.93, 95.90, 8.48, 0.26, 81.50, 43.76, 24.09 and 14.32%. The chemical composition of concentrate containing DSM at 0, 25, 50, 75 or 100% substitution for GC as DM basis was 95.25-96.71% OM, 15.08-16.50% CP, 1.49- 5.93% EE, 4.13-5.60% CF, 70.64-72.16% NFE, 35.48-46.52% NDF, 5.93-22.54 ADF, 0.79- 12.15% ADL and 4.29-4.56 Mcal/g GE. The DMI (1,318.81 g/h/d), OMI (1,252.49 g/h/d or 5.01 %BW) and CPI (143.72 g/h/d) in goat fed concentrate containing DSM at 50% substitution for GC was higher than goat fed concentrate containing DSM at 0, 25, 75 and 100% substitution for GC, But not significance was found among treatments (P>0.05). Digestibility coefficient of DM, OM, CP, EE, CF, NDF and TDN of goat fed concentrate containing DSM at 0, 25, 50, 75 and 100% substitution for GC was not significant (P>0.05). Nitrogen balance in goat fed concentrate containing DSM at 25, 75 and 100% substitution for GC were significantly higher than goat fed concentrate containing DSM at 0% (P<0.05). ME of goat fed concentrate containing DSM at 0, 25, 75 and 100% substitution for GC was not significant (P>0.05). pH in rumen in goat fed concentrate containing DSM at 75 and 100% substitution for GC were significantly higher than goat fed concentrate containing DSM at 0% (P<0.05). NH3 -N, VFA, percent of acetic acid (C2), propionic acid (C3) and butyric acid (C4) and C2:C3 ratio in rumen fluid of goat fed concentrate containing DSM at 0, 25, 50, 75 and 100% substitution for GC was not significant (P>0.05). Furthermore, PCV, glucose and urea-nitrogen in blood of goat fed concentrate containing DSM at 0, 25, 50, 75 and 100% substitution for GC was not significant (P>0.05). In conclusion, can be use concentrate containing DSM high level at 100% substitution for GC did not affect feed intake, digestibility coefficient, status in rumen, nitrogen balance and blood metabolite in goat.