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Can ruminant methane be reduced by genetic selection, vaccines or feeding seaweed? Garry Waghorn

Gary discussed three methodologies currently being worked on as mitigation strategies for methane reduction: Genetics Certain sheep have been identified as having low methane emisions. These are also sheep whtat are low yielding so there is a trade-off with performance. This is explained that lower performance comes from lower VFA production so less energy for

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Overseer Modelling Case Study – Alastair Taylor

This active run through of Overseer included demo software that was not public at the time of the session. Alastair takes a step by step approach to showcase how the FM programme functions, what information to put into each section and the latest in easy to use features. Highlighting that in the “Overview” section there

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Demystifying the New Freshwater Regulations – Adrian Brocksopp, Principal Consultant – Ravensdown

The new National Policy Statement for Freshwater Management 2020 (Aug 2020) (NPS) sets out the objectives and polices for freshwater management under the Resource Management Act 1991. It provides direction and is implemented through regional and district plans. There are different speeds of implementation for different councils. The new NPS sets tougher national bottom lines.

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OverseerFM – What is new, and the path ahead Alastair Taylor, Overseer Ltd.

OverseerFM is an online software that connects farmers to science to support sustainable farm businesses that protect the environment. OverseerFM is built on 30 years of science. The OverseerFM model has been updated to make nutrient budgeting more user friendly, and puts the farmer and the farm at the centre of the discussion. Overseer predicts

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Nitrogen and Feeds – David Pacheco, AgResearch

Farmers use Nitrogen (N) to increase forage yields and increase profitability, however, there has been increasing requirements to minimise environmental impact and for this reason N use on farms is under scrutiny. N that is not used in an animal must be excreted as, unlike with energy, there is no capacity to store N. The

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Enteric Methane and Feeds – Arjan Jonker, AgResearch

Methane (CH4) is mainly formed in the rumen (87-92%) by methanogens which utilise microbially hydrogen produced in the rumen during fermentation of ingested feed. CH4 from animals is measured via gas exchange using flux methods like respiration chambers and marker methods in research trials and is expressed as production per time, per unit of intake (yield)

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