Addition of Different Levels of Humic Substances Extracted from Worm Compost in Broiler Feeds.

In the present study, due to the reduction in FI with increasing dietary HS, highly significant linear reductions in ME and digestible lysine intake were also found from 1–14, 29–42, and 1–42 days (data not shown), which could explain the lack of effect of HS on body weight, WG, breast and carcass weight and yield.

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