Measuring enteric methane in beef and dairy cattle using PAC

<p dir="ltr"><b>Cattle PAC</b></p><ul><li>Highly successful in sheep, >5,000 commercial measures per year in NZ</li><li>Rank animals on their methane emissions</li><li>Low cost </li><li>1-hour measure per animal </li><li>Measure in groups of 4-6, => 32 – 48 per day</li></ul><p dir="ltr"><b>Conclusions</b></p><ul><li>Successfully developed and tested PAC units for cattle (Beef and dairy heifers)</li><li>Results comparable with sheep PAC</li><li>Cattle PAC traits repeatability and heritable</li><li>Recommend 6 units for cattle PAC collections</li></ul><p></p>