Urine sensor development
Authors: Keith Betteridge, Peter Cross
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Executive summary
Objectives
- Prove the concept that a urine sensor can be developed for sheep that is capable of predicting nitrogen (N) content of urine as it is excreted
- Evaluate the urine sensor on six sheep indoors over a period of up to six days.
Concept
Refractive Index (RI) is one of the few methods we know of which offers the opportunity to indirectly estimate N% of urine in situ. The RI sensor is to be calibrated against standard solutions covering the expected range of urinary N concentration, and is validated against actual urine samples collected as they are excreted by sheep, constrained within a pen indoors. These samples will be assayed for total N in a laboratory test.
Contact for Enquiries
Sustainable Land Management and Climate Change
MAF
Pastoral House
25 The Terrace
PO Box 2526, Wellington
Tel: 0800 CLIMATE (254 628)
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