“What’s the guts??”. Deep within the interior of ruminant animals is a fascinating digestion system that enables animals to digest fibrous feeds that we as humans can’t. Focusing on how ruminants work, The Rumen Room Podcasts cover a broad range of topics that bring together the nutrition, health, reproductive performance and well-being of ruminant animals. Presented in a practical, down to earth manner by New Zealand veterinarian and nutritionist Dr Charlotte Westwood, The Rumen Room Podcasts are a must for anyone with an interest in ruminant animals. Based largely on topics contained in the Facebook group ”Then Rumen Room”, these podcasts also include new content not published previously on Facebook. Proudly supported by PGG Wrightson Seeds New Zealand, the Rumen Room Podcasts are well worth a subscribe so you can be the first to tune in to the latest episodes. Thanks for joining us.
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“What’s the guts??”. Deep within the interior of ruminant animals is a fascinating digestion system that enables animals to digest fibrous feeds that we as humans can’t. Focusing on how ruminants work, The Rumen Room Podcasts cover a broad range of topics that bring together the nutrition, health, reproductive performance and well-being of ruminant animals. Presented in a practical, down to earth manner by New Zealand veterinarian and nutritionist Dr Charlotte Westwood, The Rumen Room Podcasts are a must for anyone with an interest in ruminant animals. Based largely on topics contained in the Facebook group ”Then Rumen Room”, these podcasts also include new content not published previously on Facebook. Proudly supported by PGG Wrightson Seeds New Zealand, the Rumen Room Podcasts are well worth a subscribe so you can be the first to tune in to the latest episodes. Thanks for joining us.
46. Metabolisable Energy in Ruminant Nutrition - it’s an interesting topic, we promise!
The Rumen Room Podcasts
48 minutes
1 year ago
46. Metabolisable Energy in Ruminant Nutrition - it’s an interesting topic, we promise!
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
The Rumen Room Podcasts
“What’s the guts??”. Deep within the interior of ruminant animals is a fascinating digestion system that enables animals to digest fibrous feeds that we as humans can’t. Focusing on how ruminants work, The Rumen Room Podcasts cover a broad range of topics that bring together the nutrition, health, reproductive performance and well-being of ruminant animals. Presented in a practical, down to earth manner by New Zealand veterinarian and nutritionist Dr Charlotte Westwood, The Rumen Room Podcasts are a must for anyone with an interest in ruminant animals. Based largely on topics contained in the Facebook group ”Then Rumen Room”, these podcasts also include new content not published previously on Facebook. Proudly supported by PGG Wrightson Seeds New Zealand, the Rumen Room Podcasts are well worth a subscribe so you can be the first to tune in to the latest episodes. Thanks for joining us.
