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46. Metabolisable Energy in Ruminant Nutrition - it’s an interesting topic, we promise!

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Manage episode 407021141 series 3344726
Kandungan disediakan oleh cwestwood. Semua kandungan podcast termasuk episod, grafik dan perihalan podcast dimuat naik dan disediakan terus oleh cwestwood atau rakan kongsi platform podcast mereka. Jika anda percaya seseorang menggunakan karya berhak cipta anda tanpa kebenaran anda, anda boleh mengikuti proses yang digariskan di sini https://ms.player.fm/legal.

A fundamental basic of ruminant nutrition – energy density of feeds – is covered in this latest Rumen Room Podcast.

Expressed as Megajoules of Metabolisable Energy per kilogram of dry matter (MJME/kgDM), energy density is an important driver of animal productivity and profitability.

In a down to earth, practical “gumboot level” manner, Dr Charlotte Westwood explores the basics of MJME as a concept and covers how feed testing laboratories measure MJME. How we use MJME values of a feed on farm on a day to day basis is explained. The strengths and possible limitations with the use of MJME in our day to day farm-level decisions is discussed.

Don’t be put off by what is often thought to be a rather "dry" topic of MJME - actually, it’s a straightforward concept - we’re sure you’ll learn a lot from this latest podcast!

Here’s where to find the various sections within the MJME podcast, below:

2.02 Outline of this MJME podcast

3.40 What is “energy”?

6.30 Defining Megajoules and Metabolisable Energy

7.50 Megajoules compared to Megacalories – what’s the difference?

10.25 What is gross energy and why might we be interested?

14.25 Why ruminants can’t use all of gross energy in feeds for useful things

15.10 Faecal energy – what a waste! (#1)

16.10 Digestible energy

17.25 Methane – what a waste! (#2)

18.10 Finally arriving at the MJME number…. How this is calculated

19.00 How different feeds change energy losses as methane

21.00 Measuring MJME – inside the sheep

23.00 Feed testing laboratories estimates of MJME

25.40 Using the digestibility value to calculate MJME

26.20 NIRS technology - digestibility and MJME

31.15 Strengths and weaknesses of MJME as a measure of feed quality – an overview

32.00 Typical MJME values of feed

34.40 Valuing our feeds on a cents per MJME basis – a simple task on farm! Valuing a bale of pasture baleage on an MJME basis as an example

38.00 Using MJME as part of your feed budgeting – MJME demand vs. MJME supply. A 30kg liveweight lamb as an example

40.30 Limitations of MJME as an indicator of suitability of a feed for animals

41.30 MJME is a calculated measure only!

42.00 MJME doesn’t tell us about all of the other interesting stuff in feeds

44.10 Summing up the MJME topic

  continue reading

54 episod

Artwork
iconKongsi
 
Manage episode 407021141 series 3344726
Kandungan disediakan oleh cwestwood. Semua kandungan podcast termasuk episod, grafik dan perihalan podcast dimuat naik dan disediakan terus oleh cwestwood atau rakan kongsi platform podcast mereka. Jika anda percaya seseorang menggunakan karya berhak cipta anda tanpa kebenaran anda, anda boleh mengikuti proses yang digariskan di sini https://ms.player.fm/legal.

A fundamental basic of ruminant nutrition – energy density of feeds – is covered in this latest Rumen Room Podcast.

Expressed as Megajoules of Metabolisable Energy per kilogram of dry matter (MJME/kgDM), energy density is an important driver of animal productivity and profitability.

In a down to earth, practical “gumboot level” manner, Dr Charlotte Westwood explores the basics of MJME as a concept and covers how feed testing laboratories measure MJME. How we use MJME values of a feed on farm on a day to day basis is explained. The strengths and possible limitations with the use of MJME in our day to day farm-level decisions is discussed.

Don’t be put off by what is often thought to be a rather "dry" topic of MJME - actually, it’s a straightforward concept - we’re sure you’ll learn a lot from this latest podcast!

Here’s where to find the various sections within the MJME podcast, below:

2.02 Outline of this MJME podcast

3.40 What is “energy”?

6.30 Defining Megajoules and Metabolisable Energy

7.50 Megajoules compared to Megacalories – what’s the difference?

10.25 What is gross energy and why might we be interested?

14.25 Why ruminants can’t use all of gross energy in feeds for useful things

15.10 Faecal energy – what a waste! (#1)

16.10 Digestible energy

17.25 Methane – what a waste! (#2)

18.10 Finally arriving at the MJME number…. How this is calculated

19.00 How different feeds change energy losses as methane

21.00 Measuring MJME – inside the sheep

23.00 Feed testing laboratories estimates of MJME

25.40 Using the digestibility value to calculate MJME

26.20 NIRS technology - digestibility and MJME

31.15 Strengths and weaknesses of MJME as a measure of feed quality – an overview

32.00 Typical MJME values of feed

34.40 Valuing our feeds on a cents per MJME basis – a simple task on farm! Valuing a bale of pasture baleage on an MJME basis as an example

38.00 Using MJME as part of your feed budgeting – MJME demand vs. MJME supply. A 30kg liveweight lamb as an example

40.30 Limitations of MJME as an indicator of suitability of a feed for animals

41.30 MJME is a calculated measure only!

42.00 MJME doesn’t tell us about all of the other interesting stuff in feeds

44.10 Summing up the MJME topic

  continue reading

54 episod

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