Abstract: Daily urinary nitrogen excretion (UN, g d-1) was quantified in gestating gilts during 5 d nitrogen (N) balance periods. Abbreviated collection days ( Click to show full abstract
Abstract: Daily urinary nitrogen excretion (UN, g d-1) was quantified in gestating gilts during 5 d nitrogen (N) balance periods. Abbreviated collection days (<22 h) can be used in N balance calculations when extrapolated to reflect a complete 24 h collection. Variation in daily UN did not affect overall N retention calculations.
               
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