World Grain - May 2023 - 41
this law. One of them being food that was intended for human
consumption. This is because of the extensive food safety
precautions set in place to certify a safe food supply for the
consumers as well as cooking and further processing. On the
other hand, there is no guarantee that food waste did not come
into contact with uncooked mammalian products. Additionally,
producers and feed mills may not want to take on the risk
for fear of disease or public opinion.
The other eminent concern is the variability in nutrient content.
A study conducted at Kansas State University wanted to
test the amount of variability by determining metabolizable
energy and amino acid digestibility trials with broilers (Beckman
et al., unpublished). Food waste nutrient availability was
determined by feeding weekly collections of food waste to
test if there were differences by time periods.
All food waste collections were mixed with soybean meal
and dry-extruded at a minimum of 284℃. This process created
a kill step for any bacterial concern while simultaneously
reducing moisture content to allow the food waste to be shelf
stable. Of the four time periods that were collected, they found
that the first week of food waste had a greater protein digestibility
of all amino acids than the second week. Additionally,
the third- and fourth-week food waste collections were intermediate
to the first and second weeks.
Lysine digestibility of the four week-long collection periods
ranged from 70.68% to 77.08% digestible while methionine
ranged from 67.42% to 76.48% digestible. Metabolizable energy
also was determined of the same four week-long collection
periods and ranged from 2,259 to 3,295 kcal/kg. The third
week had a greater metabolizable energy content than weeks
one and two with week four being intermediate. This shows
that variability may not be as much as initially thought and
that if enough food waste is composited together and monitored
for nutrient content, it could create a reliable feedstuff.
When comparing these thermally processed food waste products
to soybean meal, they had a similar protein digestibility
and energy content.
Previous research also has been conducted to determine the
value of different collection streams when fed to pigs. Pigs
fed food waste specifically sourced from a supermarket had
a greater methionine and tryptophan digestibility compared
to soybean meal while lysine digestibility was similar to soybean
meal (Fung et al., 2019). Recycling energy and nutrients
from various food waste sources into swine feeding programs
is constrained by the high variability and lack of data on the
digestibility of energy and nutrients. Therefore, the objectives
of this study were to evaluate the digestibility of energy,
amino acids, and phosphorus in thermally dried food waste
World-Grain.com / World Grain / May 2023
41
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World Grain - May 2023
Table of Contents for the Digital Edition of World Grain - May 2023
World Grain - May 2023 - Intro
World Grain - May 2023 - 1
World Grain - May 2023 - 2
World Grain - May 2023 - 3
World Grain - May 2023 - 4
World Grain - May 2023 - 5
World Grain - May 2023 - 6
World Grain - May 2023 - 7
World Grain - May 2023 - 8
World Grain - May 2023 - 9
World Grain - May 2023 - 10
World Grain - May 2023 - 11
World Grain - May 2023 - 12
World Grain - May 2023 - 13
World Grain - May 2023 - 14
World Grain - May 2023 - 15
World Grain - May 2023 - 16
World Grain - May 2023 - 17
World Grain - May 2023 - 18
World Grain - May 2023 - 19
World Grain - May 2023 - 20
World Grain - May 2023 - 21
World Grain - May 2023 - 22
World Grain - May 2023 - 23
World Grain - May 2023 - 24
World Grain - May 2023 - 25
World Grain - May 2023 - 26
World Grain - May 2023 - 27
World Grain - May 2023 - 28
World Grain - May 2023 - 29
World Grain - May 2023 - 30
World Grain - May 2023 - 31
World Grain - May 2023 - 32
World Grain - May 2023 - 33
World Grain - May 2023 - 34
World Grain - May 2023 - 35
World Grain - May 2023 - 36
World Grain - May 2023 - 37
World Grain - May 2023 - 38
World Grain - May 2023 - 39
World Grain - May 2023 - 40
World Grain - May 2023 - 41
World Grain - May 2023 - 42
World Grain - May 2023 - 43
World Grain - May 2023 - 44
World Grain - May 2023 - 45
World Grain - May 2023 - 46
World Grain - May 2023 - 47
World Grain - May 2023 - 48
World Grain - May 2023 - 49
World Grain - May 2023 - 50
World Grain - May 2023 - 51
World Grain - May 2023 - 52
World Grain - May 2023 - 53
World Grain - May 2023 - 54
World Grain - May 2023 - 55
World Grain - May 2023 - 56
World Grain - May 2023 - 57
World Grain - May 2023 - 58
World Grain - May 2023 - 59
World Grain - May 2023 - 60
World Grain - May 2023 - 61
World Grain - May 2023 - 62
World Grain - May 2023 - 63
World Grain - May 2023 - 64
World Grain - May 2023 - 65
World Grain - May 2023 - 66
World Grain - May 2023 - 67
World Grain - May 2023 - 68
World Grain - May 2023 - 69
World Grain - May 2023 - 70
World Grain - May 2023 - 71
World Grain - May 2023 - 72
World Grain - May 2023 - 73
World Grain - May 2023 - 74
World Grain - May 2023 - 75
World Grain - May 2023 - 76
https://digital.world-grain.com/sosland/wg/world-grain-december-2024
https://digital.world-grain.com/sosland/wg/world-grain-november-2024
https://digital.world-grain.com/sosland/wg/world-grain-october-2024
https://digital.world-grain.com/sosland/wg/world-grain-september-2024
https://digital.world-grain.com/sosland/wg/world-grain-august-2024
https://digital.world-grain.com/sosland/wg/world-grain-july-2024
https://digital.world-grain.com/sosland/wg/world-grain-june-2024
https://digital.world-grain.com/sosland/wg/world-grain-may-2024
https://digital.world-grain.com/sosland/wg/world-grain-april-2024
https://digital.world-grain.com/sosland/wg/world-grain-march-2024
https://digital.world-grain.com/sosland/wg/world-grain-february-2024
https://digital.world-grain.com/sosland/wg/world-grain-january-2024
https://digital.world-grain.com/sosland/wg/world-grain-december-2023
https://digital.world-grain.com/sosland/wg/world-grain-november-2023
https://digital.world-grain.com/sosland/wg/world-grain-october-2023
https://digital.world-grain.com/sosland/wg/world-grain-september-2023
https://digital.world-grain.com/sosland/wg/world-grain-august-2023
https://digital.world-grain.com/sosland/wg/world-grain-july-2023
https://digital.world-grain.com/sosland/wg/world-grain-june-2023
https://digital.world-grain.com/sosland/wg/world-grain-may-2023
https://digital.world-grain.com/sosland/wg/world-grain-april-2023
https://digital.world-grain.com/sosland/wg/world-grain-march-2023
https://digital.world-grain.com/sosland/wg/world-grain-february-2023
https://digital.world-grain.com/sosland/wg/world-grain-january-2023
https://digital.world-grain.com/sosland/wg/world-grain-december-2022
https://digital.world-grain.com/sosland/wg/world-grain-november-2022
https://digital.world-grain.com/sosland/wg/world-grain-october-2022
https://digital.world-grain.com/sosland/wg/world-grain-september-2022
https://digital.world-grain.com/sosland/wg/world-grain-august-2022
https://digital.world-grain.com/sosland/wg/world-grain-july-2022
https://digital.world-grain.com/sosland/wg/world-grain-june-2022
https://digital.world-grain.com/sosland/wg/world-grain-may-2022
https://digital.world-grain.com/sosland/wg/world-grain-april-2022
https://digital.world-grain.com/sosland/wg/world-grain-march-2022
https://digital.world-grain.com/sosland/wg/world-grain-february-2022
https://digital.world-grain.com/sosland/wg/world-grain-january-2022
https://digital.world-grain.com/sosland/wg/world-grain-december-2021
https://digital.world-grain.com/sosland/wg/-world-grain-november-2021
https://digital.world-grain.com/sosland/wg/world-grain-october-2021
https://digital.world-grain.com/sosland/wg/world-grain-september-2021
https://digital.world-grain.com/sosland/wg/world-grain-august-2021
https://digital.world-grain.com/sosland/wg/world-grain-july-2021
https://digital.world-grain.com/sosland/wg/world-grain-june-2021
https://digital.world-grain.com/sosland/wg/world-grain-may-2021
https://digital.world-grain.com/sosland/wg/world-grain-april-2021
https://digital.world-grain.com/sosland/wg/world-grain-march-2021
https://digital.world-grain.com/sosland/wg/world-grain-february-2021
https://digital.world-grain.com/sosland/wg/2021_01_01
https://digital.world-grain.com/sosland/wg/2020_12_01
https://digital.world-grain.com/sosland/wg/2020_11_01
https://digital.world-grain.com/sosland/wg/2020_10_01
https://digital.world-grain.com/sosland/wg/2020_09_01
https://digital.world-grain.com/sosland/wg/2020_08_01
https://digital.world-grain.com/sosland/wg/2020_07_01
https://digital.world-grain.com/sosland/wg/2020_06_01
https://digital.world-grain.com/sosland/wg/2020_05_01
https://digital.world-grain.com/sosland/wg/2020_04_01
https://digital.world-grain.com/sosland/wg/2020_03_01
https://digital.world-grain.com/sosland/wg/2020_02_01
https://digital.world-grain.com/sosland/wg/2020_01_01
https://digital.world-grain.com/sosland/wg/2019_12_01
https://digital.world-grain.com/sosland/wg/2019_11_01
https://digital.world-grain.com/sosland/wg/2019_10_01
https://digital.world-grain.com/sosland/wg/2019_09_01
https://digital.world-grain.com/sosland/wg/2019_08_01
https://digital.world-grain.com/sosland/wg/2019_07_01
https://digital.world-grain.com/sosland/wg/2019_06_01
https://digital.world-grain.com/sosland/wg/2019_05_01
https://digital.world-grain.com/sosland/wg/2019_04_01
https://digital.world-grain.com/sosland/wg/2019_03_01
https://digital.world-grain.com/sosland/wg/2019_02_01
https://digital.world-grain.com/sosland/wg/2019_01_01
http://digital.world-grain.com/sosland/wg/2018_12_01
http://digital.world-grain.com/sosland/wg/2018_11_01
http://digital.world-grain.com/sosland/wg/2018_10_01
http://digital.world-grain.com/sosland/wg/2018_09_01
http://digital.world-grain.com/sosland/wg/2018_08_01
http://digital.world-grain.com/sosland/wg/2018_07_01
http://digital.world-grain.com/sosland/wg/2018_06_01
http://digital.world-grain.com/sosland/wg/2018_05_01
http://digital.world-grain.com/sosland/wg/2018_04_01
http://digital.world-grain.com/sosland/wg/2018_03_01
https://www.nxtbook.com/sosland/wg/2018_02_01
https://www.nxtbook.com/sosland/wg/2018_01_01
https://www.nxtbook.com/sosland/wg/2017_12_01
https://www.nxtbook.com/sosland/wg/2017_11_01
https://www.nxtbook.com/sosland/wg/2017_10_01
https://www.nxtbook.com/sosland/wg/2017_09_01
https://www.nxtbook.com/sosland/wg/2017_08_01
https://www.nxtbook.com/sosland/wg/2017_07_01
https://www.nxtbook.com/sosland/wg/2017_06_01
https://www.nxtbook.com/sosland/wg/2017_05_01
https://www.nxtbook.com/sosland/wg/2017_04_01
https://www.nxtbook.com/sosland/wg/2017_03_01
https://www.nxtbook.com/sosland/wg/2017_02_01
https://www.nxtbook.com/sosland/wg/2017_01_01
https://www.nxtbook.com/sosland/wg/2016_12_01
https://www.nxtbook.com/sosland/wg/2016_11_01
https://www.nxtbook.com/sosland/wg/2016_10_01
https://www.nxtbook.com/sosland/wg/2016_09_01
https://www.nxtbook.com/sosland/wg/2016_08_01
https://www.nxtbook.com/sosland/wg/2016_07_01
https://www.nxtbook.com/sosland/wg/2016_06_01
https://www.nxtbook.com/sosland/wg/2016_05_01
https://www.nxtbook.com/sosland/wg/2016_04_01
https://www.nxtbook.com/sosland/wg/2016_03_01
https://www.nxtbook.com/sosland/wg/2016_02_01
https://www.nxtbook.com/sosland/wg/2016_01_01
https://www.nxtbook.com/sosland/wg/2015_12_01
https://www.nxtbook.com/sosland/wg/2015_11_01
https://www.nxtbook.com/sosland/wg/2015_10_01
http://digital.world-grain.com/sosland/wg/2015_09_01
http://digital.world-grain.com/sosland/wg/2015_08_01
http://digital.world-grain.com/sosland/wg/2015_07_01
http://digital.world-grain.com/sosland/wg/2015_06_01
http://digital.world-grain.com/sosland/wg/2015_05_01
https://www.nxtbook.com/sosland/wg/2015_04_01
https://www.nxtbook.com/sosland/wg/2015_03_01
https://www.nxtbook.com/sosland/wg/2015_02_01
http://digital.world-grain.com/sosland/wg/2015_01_01
http://digital.world-grain.com/sosland/wg/2014_12_15
https://www.nxtbook.com/sosland/wg/2014_12_01
https://www.nxtbook.com/sosland/wg/2014_11_01
https://www.nxtbook.com/sosland/wg/2014_10_01
https://www.nxtbook.com/sosland/wg/2014_09_01
https://www.nxtbook.com/sosland/wg/2014_08_01
https://www.nxtbook.com/sosland/wg/2014_07_01
https://www.nxtbook.com/sosland/wg/2014_06_01
https://www.nxtbook.com/sosland/wg/2014_05_01
https://www.nxtbook.com/sosland/wg/2014_04_01
https://www.nxtbook.com/sosland/wg/2014_03_01
https://www.nxtbook.com/sosland/wg/2014_02_01
https://www.nxtbook.com/sosland/wg/2014_01_01
https://www.nxtbook.com/sosland/wg/2013_12_01
https://www.nxtbook.com/sosland/wg/2013_11_01
https://www.nxtbook.com/sosland/wg/2013_10_01
https://www.nxtbook.com/sosland/wg/2013_09_01
https://www.nxtbook.com/sosland/wg/2013_08_01
https://www.nxtbook.com/sosland/wg/2013_07_01
https://www.nxtbook.com/sosland/wg/2013_06_01
https://www.nxtbook.com/sosland/wg/2013_05_01
https://www.nxtbook.com/sosland/wg/2013_04_01
https://www.nxtbook.com/sosland/wg/2013_03_01
https://www.nxtbook.com/sosland/wg/2013_02_01
https://www.nxtbook.com/sosland/wg/2013_01_01
https://www.nxtbook.com/sosland/wg/2012_12_01
https://www.nxtbook.com/sosland/wg/2012_11_01
https://www.nxtbook.com/sosland/wg/2012_10_01
https://www.nxtbook.com/sosland/wg/2012_09_01
https://www.nxtbook.com/sosland/wg/2012_08_01
https://www.nxtbook.com/sosland/wg/2012_07_01
https://www.nxtbook.com/sosland/wg/2012_06_01
https://www.nxtbook.com/sosland/wg/2012_05_01
https://www.nxtbook.com/sosland/wg/2012_04_01
https://www.nxtbook.com/sosland/wg/2012_03_01
https://www.nxtbook.com/sosland/wg/2012_02_01
https://www.nxtbook.com/sosland/wg/2012_01_01
https://www.nxtbook.com/sosland/wg/2011_12_01
https://www.nxtbook.com/sosland/wg/2011_11_01
https://www.nxtbook.com/sosland/wg/2011_10_01
https://www.nxtbook.com/sosland/wg/20111_09_01
https://www.nxtbook.com/sosland/wg/2011_08_01
https://www.nxtbook.com/sosland/wg/2011_07_01
https://www.nxtbook.com/sosland/wg/2011_06_01
https://www.nxtbook.com/sosland/wg/2011_05_01
https://www.nxtbook.com/sosland/wg/2011_04_01
https://www.nxtbook.com/sosland/wg/2011_03_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_01_01
http://digital.world-grain.com/sosland/wg/2010_12_01
http://digital.world-grain.com/sosland/wg/2010_11_01
http://digital.world-grain.com/sosland/wg/2010_10_01
http://digital.world-grain.com/sosland/wg/2010_09_01
http://digital.world-grain.com/sosland/wg/2010_08_01
http://digital.world-grain.com/sosland/wg/2010_07_01
http://digital.world-grain.com/sosland/wg/2010_06_01
http://digital.world-grain.com/sosland/wg/2010_05_01
http://digital.world-grain.com/sosland/wg/2010_04_01
http://digital.world-grain.com/sosland/wg/2010_03_01
http://digital.world-grain.com/sosland/wg/2010_02_01
http://digital.world-grain.com/sosland/wg/2010_01_01
http://digital.world-grain.com/sosland/wg/2009_12_01
http://digital.world-grain.com/sosland/wg/2009_11_01
http://digital.world-grain.com/sosland/wg/2009_10_01
http://digital.world-grain.com/sosland/wg/2009_09_01
http://digital.world-grain.com/sosland/wg/2009_08_01
http://digital.world-grain.com/sosland/wg/2009_07_01
http://digital.world-grain.com/sosland/wg/2009_06_01
http://digital.world-grain.com/sosland/wg/2009_05_01
http://digital.world-grain.com/sosland/wg/2009_04_01
http://digital.world-grain.com/sosland/wg/2009_03_01
http://digital.world-grain.com/sosland/wg/2009_02_01
http://digital.world-grain.com/sosland/wg/2009_01_01
http://digital.world-grain.com/sosland/wg/2008_12_01
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http://digital.world-grain.com/sosland/wg/2008_09_01
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http://digital.world-grain.com/sosland/wg/2008_06_01
http://digital.world-grain.com/sosland/wg/2008_05_01
http://digital.world-grain.com/sosland/wg/2008_04_01
http://digital.world-grain.com/sosland/wg/2008_03_01
http://digital.world-grain.com/sosland/wg/2008_02_01
http://digital.world-grain.com/sosland/wg/2008_01_01
http://digital.world-grain.com/sosland/wg/2007_12_01
http://digital.world-grain.com/sosland/wg/2007_11_01
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http://digital.world-grain.com/sosland/wg/2007_06_01
http://digital.world-grain.com/sosland/wg/2007_05_01
http://digital.world-grain.com/sosland/wg/2007_04_01
http://digital.world-grain.com/sosland/wg/2007_03_01
http://digital.world-grain.com/sosland/wg/2007_02_01
http://digital.world-grain.com/sosland/wg/2007_01_01
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