Abstract
In vitro trials were conducted to study the effect of supplementation of different levels (0, 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0%) of K. alvarezii based seaweed product ( K. Alvarezii powder: Gracilaria salicornia powder : K. alvarezii sap powder in 1: 1: 1 ratio) to basal substrate on digestibility and rumen fermentation parameters. The results showed that supplementation of different levels (0, 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0%) of K. alvarezii based seaweed product to the basal substrate (sugargraze fodder and concentrate mixture in 60: 40 ratio) did not affect in vitro true DM and OM digestibility, total gas production, methane production, ammonia-N, microbial biomass production and metabolisable energy values to any significant extent.
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