the market for plant extract in ruminant livestock the market for plant... · plant extracts...
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Jamie Newbold
The market for plant extract in
ruminant livestock
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Bacteria Fungi
Protozoa
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Bacteria
~300 species
1010 to 1011cells/ml
Methanogenic
Archaea
~6 species
106 to 108 cells/ml
Anaerobic
Fungi
~30 species
<105 cells/ml
Ciliate
Protozoa
~40 species
<105 cells/ml
Large and complex populations of micro-organisms.
Essential for energy/ protein requirement.
In balance in microbial community can lead to severe illness (acidosis, laminitis, liver abscesses, etc).
Major contribution to GHG/ pollutant emissions
The rumen
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Rumen manipulation
Diet manipulation
Antibiotics
Other chemicals
Fats
Buffers
Immunological
Probiotics
Plant extracts
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Livestock production is consumer focused
EU regulation 1831/2003
Definition of feed additive • Substances, micro-organisms or preparations,
other than feed material and premixes, which are intentionally added to feed or water in order to perform, in particular, one or more of the functions mentioned in Article 5(3) of
1831/2003
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Ruminants lose between 3 – 8% of GE as methane
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CH4
CO2
Methanogens
Protozoa
H2
H2
Methane production: a microbially driven process to remove hydrogen
Feed
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Mitigation database - global
Global database search
Wide scope of key words
1400+ potential references identified
Limited by
• Access
• Selection criteria
Database so far…
232 references
Ruminants only
Global coverage
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0,5
0,6
0,7
0,8
0,9
1
1,1
mean
eff
ect
siz
e
all ruminants
Cattle
Dairy
Sheep
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Major constraints limiting uptake
of plant extracts
the need to standardise and report the concentration of active component
stability of the compounds in practical conditions
persistence of the effects/adaptation of the rumen ecosystem
lack of in vivo data over a range of livestock production systems
effect of extract on the perceived quality of milk products
a lack of production data on which to base calculations of market prices
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Major constraints limiting uptake
of plant extracts
the need to standardise and report the concentration of active component
stability of the compounds in practical conditions
persistence of the effects/adaptation of the rumen ecosystem
lack of in vivo data over a range of livestock production systems
effect of extract on the perceived quality of milk products
a lack of production data on which to base calculations of market prices
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Genotypes
Variation commonly occur in plants containing volatile oils, e.g. Thyme (Thymus vulgaris) – has 7 different chemotypes, each with slightly different types & amounts of volatile oils.
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Growth cycle
Proportions of the different constituents of a volatile oil may vary greatly throughout its development. Wide ranges are commonly found in fennel, carrot and coriander (linalool is higher in ripe fruit than unripe fruit). Mentha (peppermint) is also greatly affected by the vegetative cycle.
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Environmental factors
Temperature, humidity, duration of daylight (radiation), and wind patterns all have a direct influence on volatile oil content.
e.g. Peppermint: long days & temperate nights
higher yields of oil & menthofuran. Cold nights lead to an increase in menthol.
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Environmental factors
Cultivation practices also play an important factor to the yield & quality of the final product.
Fertilization and the amounts of N, P and K have been studied for various species.
The watering regiment also plays an important role.
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Major constraints limiting uptake
of plant extracts
the need to standardise and report the concentration of active component
stability of the compounds in practical conditions
persistence of the effects/adaptation of the rumen ecosystem
lack of in vivo data over a range of livestock production systems
effect of extract on the perceived quality of milk products
a lack of production data on which to base calculations of market prices
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-0,5
0
0,5
1
1,5
2
2,5
3
3,5
Alicin DADS Ajoene Ally cysteine Vinyl Dithin
500
200
100
50
25
10
0
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Major constraints limiting uptake
of plant extracts
the need to standardise and report the concentration of active component
stability of the compounds in practical conditions
persistence of the effects/adaptation of the rumen ecosystem
lack of in vivo data over a range of livestock production systems
effect of extract on the perceived quality of milk products
a lack of production data on which to base calculations of market prices
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CH
4 p
rod
uct
ion
( g
per
kg
DM
I )
Days
Chloroform added
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0
5
10
15
20
25
0 7 14 21 28 35 42
Days of experiment
Nu
mb
er o
f p
roto
zoa
(x
105
/ml)
Influence of Sesbania sesban on protozoal numbers in the sheep
rumen
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Major constraints limiting uptake
of plant extracts
the need to standardise and report the concentration of active component
stability of the compounds in practical conditions
persistence of the effects/adaptation of the rumen ecosystem
lack of in vivo data over a range of livestock production systems
effect of extract on the perceived quality of milk products
a lack of production data on which to base calculations of market prices
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The effect of a yeast based probiotic, Allicin an extract from garlic and the essential oil analogue on methane production by and methanogen numbers in the rumen of store lambs
0,01
0,015
0,02
0,025
0,03
0,035
26
27
28
29
30
31
32
33
34
35
Control Allicin Yeast EO
Me
tha
no
ge
ns
ΔΔ
CT
M
eth
an
e (
l/d
)
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Major constraints limiting uptake
of plant extracts
the need to standardise and report the concentration of active component
stability of the compounds in practical conditions
persistence of the effects/adaptation of the rumen ecosystem
lack of in vivo data over a range of livestock production systems
effect of extract on the perceived quality of milk products
a lack of production data on which to base calculations of market prices
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Major constraints limiting uptake
of plant extracts
the need to standardise and report the concentration of active component
stability of the compounds in practical conditions
persistence of the effects/adaptation of the rumen ecosystem
lack of in vivo data over a range of livestock production systems
effect of extract on the perceived quality of milk products
a lack of production data on which to base calculations of market prices
![Page 33: The market for plant extract in ruminant livestock The market for plant... · Plant extracts Livestock production is consumer focused EU regulation 1831/2003 Definition of feed additive](https://reader035.vdocuments.net/reader035/viewer/2022071218/6052f3467a95fc528a589798/html5/thumbnails/33.jpg)
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