Urea-nitrate coating with zeolite reduces in vitro ammonia concentration in the rumen
This title has been presented on Thursday, December 14, 2023 at 14.10-14.20 GMT+7.
Keywords:
ammonia, coating, in vitro, protein, urea-nitrate, zeoliteAbstract
This title has been presented on Thursday, December 14, 2023 at 14.10-14.20 GMT+7.
The present study aimed to evaluate the effect of urea-nitrate coated with zeolite on in vitro rumen fermentation parameters. The zeolite used comprised of two types, i.e., activated zeolite and unactivated zeolite. A randomized complete block design was utilized in this study, consisted of five treatments and four replications. The treatments were: T0 = control diet; T1 = T0 + uncoated urea; T2 = T0 + uncoated urea-nitrate; T3 = T0 + urea-nitrate with unactivated zeolite coating; T4 = urea-nitrate with activated zeolite coating. The urea-nitrate supplementation with zeolite coating was set to enhance dietary crude protein by 2% of the control diet. Results revealed that T4 treatment reduced in vitro ruminal ammonia concentration compared to T0, T1, T2, and T3 (P<0.05). However, other rumen fermentation parameters such as rumen pH, volatile fatty acid concentration, microbial protein synthesis, dry matter digestibility, organic matter digestibility, total gas production, and methane production were similar among the treatments. In conclusion, the urea-nitrate supplementation with activated zeolite coating in ruminant diet is able to slow down the formation of ammonia in the rumen in vitro.
