ZELP

How it works

Key Benefits

Applications

Publications

FAQs

Validation of ZELP Sense™ for Quantifying Enteric Methane and Carbon Dioxide Emissions under Feed Additive Conditions in Cattle

White paper available here

Key findings

  • CH4 measurement: Overall, ZELP Sense demonstrated strong agreement with RC values (r = 0.899, CCC = 0.844, MAPE = 7.45%)
  • Treatment detection: ZELP Sense detected a comparable reduction in CH4 after the feed additive was introduced (ZELP Sense: −36.9 g/day, p < 0.001; RC: −40.7 g/day, p = 0.004).
  • CO2 measurement: Mean CO2 outputs from ZELP Sense were broadly comparable to RC, although greater variability was observed (RC: 9335 ± 418 g/day; ZELP Sense: 9330 ± 1465 g/day).

Evaluating ZELP Sense™ and GreenFeed™ Performance for Measuring Enteric Methane in Lactating Cattle

White paper available here

Key findings

  • CH4 measurement: There was no statistical difference between the CH4 estimates provided by ZELP Sense and GreenFeed, after accounting for DMI and dietary treatment (p = 0.116).
  • CH4 measurement sensitivity: Neither DMI (p = 0.124) nor dietary treatment (p = 0.275) significantly influenced the comparability of results.
  • Animal welfare: ZELP Sense device wear was well tolerated, with no removals required.