Variability in daily urinary nitrogen excretion of gestating gilts does not affect estimates of nitrogen retention

E.G. Miller; L. Huber; C.L. Levesque; C.F.M. de Lange

doi:10.1139/cjas-2017-0062

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E.G. Miller,¹ L. Huber,¹ C.L. Levesque,^2,* C.F.M. de Lange^1,**

¹Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada.
²Department of Animal Science, South Dakota State University, Brookings, SD 57006, USA.

^*Corresponding author: C.L. Levesque (email: crystal.levesque@sdstate.edu).
^**Author is deceased.

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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Citation Download Citation

E.G. Miller, L. Huber, C.L. Levesque, and C.F.M. de Lange "Variability in daily urinary nitrogen excretion of gestating gilts does not affect estimates of nitrogen retention," Canadian Journal of Animal Science 98(3), 603-605, (9 March 2018). https://doi.org/10.1139/cjas-2017-0062

Received: 5 May 2017; Accepted: 18 December 2017; Published: 9 March 2018