Ghulam Qasim Khan

Research Scientist

(+47) 462 59 705
ghulam.khan@nibio.no

Place
Steinkjer

Visiting address
Ogndalsveien 2, 7713 Steinkjer

Abstract

The study evaluated the effects of replacing whole-plant grass silage with ensiled grass pulp on dairy cow performance and enteric methane emissions. Using a controlled feeding experiment with 40 cows, the results showed reduced dry matter intake but maintained milk production and similar methane intensity due to improved feed efficiency in cows fed pulp. These findings highlight the potential for grass pulp as a viable forage component in green biorefinery value chains.

To document

Abstract

This article synthesizes evidence on how screw-extrusion followed by pelleting can tailor compound feeds to improve nutrient use in ruminants. Extrusion can produce pellets with targeted density and fluid stability by altering starch gelatinization, protein functionality, and fiber structure, potentially shifting rumen degradation kinetics and nutrient flow to the intestine. This article identifies extruder settings needed to achieve the desired pellet density and fluid stability for rumen control, and defines and evaluates ruminant-specific physical properties of extruded feed pellets.