Feeding milled rapeseed as a lipid and protein supplement for lactating dairy cows reduced methane production per day, per unit of dry matter intake and per unit of milk yield.
The environmental assessment of the raising of fattening pigs on the welfare-friendly straw-flow system seems to conflict, with lower manure N content and lower greenhouse gas emissions but higher NH3 emissions in comparison with the conventional slatted-floor system.
Increasing the proportion of forage in the diet of dairy-origin bulls has only a marginal effect on carbon footprint.
Dietary inclusion of benzoic acid linearly reduced urinary nitrogen and total nitrogen excretion, as well as linearly reduced manure ammonia emissions.
Both soya and linseed oil have the potential to reduce enteric CH4 emissions from grazing dairy cows.
Global warming is predicted to have a negative impact on the welfare of UK livestock.
In terms of trace gases, indirect N2O emissions sourced from ammonia losses comprised the largest proportion of land-spreading emissions when slurry was spread in warm conditions
Take Home Message: Methane output from dairy cows can be decreased by up to 40% by including 150 g/kg DM extruded linseeds in the diet without affecting intake or milk yield.
It is possible to feed cattle using extruded linseeds to reduce methane production without altering milk yield. That was the finding of two studies, carried [...]
Take Home Message: Agricultural green house gas emissions can be reduced by 5% by altering management, particularly by the wider use of genetic improvement in the beef and dairy industries.
There are a range of cost-effective options – either nil or low cost – for the UK livestock sector that will abate greenhouse gas (GHG) emissions. [...]
Take Home Message: Breeding dairy cows for increased yield will reduce the CO2 output from dairy farming by 0.6% for every 1% increase in yield.
A non-market or ‘shadow’ environmental value can be incorporated into selection indices, using increased milk yield to reduce the herd size required to maintain herd output as the goal trait.
“And a [...]
