Effects of Silage Soluble Nitrogen Components on Metabolizable Protein Concentration: A Meta-Analysis of Dairy Cow Production Experiments

From: Journal of Dairy Science | Date: March 1, 2008| Author: | Copyright information

ABSTRACT

A meta-analysis based on 253 treatment means from 80 dairy cow production experiments was conducted to estimate the effects of the silage water-soluble N components on milk production, milk urea N concentration, and the efficiency of N utilization in milk production. The original experiments were conducted to study forage treatments (e.g., digestibility, fermentation quality, or wilting). Both the level and composition of concentrates were fixed within an experiment. Silage soluble N (g/kg of N) was divided into ammonia N and soluble nonammonia N, which was determined without the use ...

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