Effects of urea-calcium mixture levels in high-quality feed block on feed intake, digestibility, rumen ecology and fermentation pattern in Thai-native beef cattle
1. To develop high-quality feed block with urea-calcium mixture as a new product.
2. To evaluate the effects of different levels of urea-calcium mixture in HQFB on ruminal ammonia concentration, nutrients digestibility, microbial population using the in vitro gas techniques.
3. To evaluate the effects of different levels of urea-calcium mixture in HQFB on rumen ecology, rumen microorganisms, microbial protein synthesis, and digestibility of nutrients of Thai-native beef cattle.