U.S. patent application number 13/905284 was filed with the patent office on 2013-12-05 for method of increasing omega-3 content in poultry.
The applicant listed for this patent is Kalmbach Feeds, Inc.. Invention is credited to Paul M. Kalmbach, Simon M. Shane.
Application Number | 20130323336 13/905284 |
Document ID | / |
Family ID | 49670555 |
Filed Date | 2013-12-05 |
United States Patent
Application |
20130323336 |
Kind Code |
A1 |
Kalmbach; Paul M. ; et
al. |
December 5, 2013 |
METHOD OF INCREASING OMEGA-3 CONTENT IN POULTRY
Abstract
A feed supplement for poultry consisting of distillers dried
grains with solubles (DDGS) and flaxseed. The supplement is
prepared using a dry extrusion process. Also described is a method
of using the feed supplement to increase omega-3 fatty acids in
poultry products, such as eggs.
Inventors: |
Kalmbach; Paul M.; (Upper
Sandusky, OH) ; Shane; Simon M.; (Upper Sandusky,
OH) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Kalmbach Feeds, Inc. |
Upper Sandusky |
OH |
US |
|
|
Family ID: |
49670555 |
Appl. No.: |
13/905284 |
Filed: |
May 30, 2013 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61653678 |
May 31, 2012 |
|
|
|
Current U.S.
Class: |
424/750 |
Current CPC
Class: |
A61K 36/899 20130101;
A61K 36/55 20130101; A61K 36/899 20130101; A61K 2300/00 20130101;
A61K 36/55 20130101; A61K 2300/00 20130101 |
Class at
Publication: |
424/750 |
International
Class: |
A61K 36/899 20060101
A61K036/899 |
Claims
1. A method of preparing a feed component for poultry, comprising:
grinding a quantity of DDGS into a meal; mixing a quantity of
intact oilseeds with the meal, thereby forming a mixture; heating
the mixture to a temperature between about 220 F to about 320 F;
and extruding the mixture.
2. The method of claim 1, wherein the oilseeds are selected from
the group consisting of flax, sunflower, safflower, rapeseed,
canola, soybean and combinations thereof.
3. The method of claim 1, further including the step of adding a
stabilizer to the extruded mixture.
4. The method of claim 3, wherein the additive includes adding an
enzyme to the extruded mixture to aid in digestibility.
5. A method of increasing the amount of omega-3 fatty acids in a
poultry product comprising: identifying a bird fed a standard feed
ration; feeding the bird a modified feed ration, wherein the
modified feed ration is the standard feed ration with at least
1-15% of the standard feed ration contents replaced by a feed
prepared by: grinding a quantity of DDGS into a meal; mixing a
quantity of intact oilseeds with the meal, thereby forming a
mixture; heating the mixture to a temperature between about 220 F
to about 320 F; extruding the mixture; and obtaining the poultry
product from the bird, wherein the poultry product has an increased
omega-3 fatty acid level when compared to a poultry product
obtained from a similar bird fed the standard feed ration.
6. The method of claim 5, wherein the poultry product is an egg.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to co-pending U.S.
Application No. 61/653,678 filed on May 31, 2012 and is herein
incorporated by reference in its entirety.
TECHNICAL FIELD
[0002] Exemplary embodiments of the inventive concept relate to
feed supplements and methods of increasing the amount of essential
fatty acids in eggs and meat of poultry. In particular, the present
invention relates to a feed supplement comprised of co-extruded
flaxseed and distillers dried grains with solubles (DDGS) that
increases the content of omega-3 fatty acids in eggs and meat of
poultry.
BACKGROUND OF THE INVENTION
[0003] Essential fatty acids (EFAs) are necessary for proper human
health. There are two groups of EFAs; the omega-3 fatty acids, and
the omega-6 fatty acids. A healthy human diet requires a balance of
both omega-3 and omega-6 fatty acids, which play an important role
in brain function, metabolism regulation, heart health, bone
health, normal growth and development, and reproductive health.
However, humans cannot make their own EFAs, and therefore they must
be acquired through the foods they eat. Common sources for EFAs
have historically included fish oils and plant oils such as
flaxseed oil.
[0004] There have also been efforts to increase the content of
omega-3 in poultry products. This is desirable since a large
segment of the population routinely eats poultry products, and many
consumers seek to increase the amount of omega-3 in their diet
through the foods that they eat. However, there is difficulty in
providing a feed product for poultry that results in a high amount
of omega-3 content in the poultry products, such as eggs. Many
feeds and supplements do not result in poultry products that have
omega-3 levels high enough to attract consumers.
SUMMARY OF THE INVENTION
[0005] Provided herein is a method for preparing a feed component
for poultry, which includes the steps of grinding a quantity of
DDGS into a meal, mixing the ground DDGS with intact oilseeds, and
co-extruding the mixture. During extrusion, the mixture may reach
temperatures of about 220 F to about 320 F. After extrusion, the
mixture may be further mixed with additives, which may include
enzymes to aid in digestibility and stabilizers. The oilseeds used
may be selected from the group consisting of flax, sunflower,
safflower, rapeseed, canola, soybean, or combinations thereof.
[0006] Also provided herein is a method of increasing the amount of
omega-3 in a poultry product which is performed by identifying a
bird fed a standard feed ration, and feeding the bird a modified
feed ration where 1-15% of the standard feed ration contents are
replaced by an extruded mixture of ground DDGS and intact oilseeds.
This method may also include the step of obtaining a poultry
product from the bird that has an increased omega-3 fatty acid
level when compared to the same poultry product obtained from a
similar bird fed the standard feed ration. The poultry product may
be an egg.
[0007] Additional objects, advantages and novel features of the
invention will be set forth in part in the description which
follows, and in part will be apparent to those skilled in the art
upon examination of the following, or may be learned from practice
of the invention.
DETAILED DESCRIPTION
[0008] Described herein is an improved feed supplement for poultry
that is comprised of distillers dried grains and solubles (DDGS)
and oilseeds such as flax. As will be appreciated by one of
ordinary skill in the art, different types of corn and wheat
derivatives may be used in combination with many different types of
oilseeds. When fed to poultry over a period of time, higher levels
of omega-3 are present in the poultry products, including eggs and
meat.
[0009] The feed supplement may be prepared by grinding a
predetermined amount of DDGS into a meal or flour. The meal or
flour is then mixed with flax oilseeds in order to form a
homogenous mixture. The oilseeds may be whole or ground. The
homogenous mixture is then subjected to a dry extrusion process.
During the dry extrusion process, the mixture is subjected to a
combination of heat and pressure. The temperature in the extruder
may be anywhere from 220-320 degrees while the extrusion process is
underway. The pressure may be anywhere from 200 psi to 800 psi. The
combination of heat and pressure ruptures the oilseeds, releasing
oil into the mixture, and causing the ruptured oilseed to be coated
by the ground DDGS. The effect of heat and pressure on the mixture
is to not only rupture the oilseeds, but to also gelatinize the
starch, and increase the digestibility of the proteins, fats, and
fibers in the mixture. As the mixture passes out of the extruder in
meal form, heat and pressure are relieved, and the mixture is
allowed to cool. Once cooled, additives such as enzymes and
stabilizers may be added to aid in consumption by poultry. As will
be appreciated by one of ordinary skill in the art, while the
mixture may be left in meal form, other suitable feed shapes
include feed pellets, feed crumbles, and any other shapes and/or
textures that may be desired for feeding poultry.
[0010] Preferably, the feed supplement has a minimum crude protein
content of 18-28%, and a minimum crude fat content of 16-26%.
Preferably, omega-3 fatty acid is 6-12% of the total supplement.
Preferably, the feed supplement has a maximum crude fiber content
of 12%. Preferably, the supplement also has the following minimum
nutritional values: lysine: 0.6-1.2%; methionine: 0.3-0.6%;
calcium: 0.05-1.5%; and phosphorus: 0.2-1%. In other embodiments,
these nutrient profiles may vary.
[0011] In one embodiment, the feed supplement is comprised of
49.625% DDGS, 50% flax, 0.125 dried aspergillus niger fermentation
product, and 0.25 ethoxyquin. The dried aspergillus niger
fermentation product is an enzyme to aid in digestibility and the
ethoxyquin is a stabilizer to maintain freshness. In other
embodiments, the relative amounts of these ingredients may vary
significantly. Flax may each comprise anywhere from 10-90% of the
supplement; DDGS may also comprise anywhere from 10-90% of the
supplement. The dried aspergillus niger fermentation product may
comprise anywhere from 0-1% of the supplement, and ethoxyquin may
also comprise anywhere from 0-1% of the supplement.
[0012] In another embodiment, different oilseeds are used instead
of flax. The oilseeds may be sunflower, safflower, rapeseed,
canola, or soybean. In some embodiments mixtures of different
oilseeds may be used.
[0013] In some embodiments, different grain or processed grain
by-products may be used instead of, or in addition to, DDGS. Grain
products that may be used include barley, corn, grain sorghums,
mixed feed oats, oats, wheat, rice, rye, triticale, or any mixture
thereof. Grain by-products that may be used include aspirated grain
fractions, brewers dried grains, buckwheat middlings, condensed
distillers soluble, condensed fermented corn extractives, corn
bran, corn flour, corn germ meal, corn gluten feed, corn gluten
meal, corn grits, distillers dried grains, distillers dried
soluble, grain sorghum germ cake, grain sorghum germ meal, grain
sorghum grits, grain sorghum mill feed, hominy feed, malt sprouts,
oat groats, oat meal, pearl barley by-products, peanut skins, rice
bran, rice polishings, rye middlings, sorghum grain flour, wheat
bran, wheat flour, wheat shorts, wheat germ meal, wheat middlings,
wheat millrun, wheat red dog, or any mixture thereof.
[0014] The enzymes and stabilizers used may vary as well, depending
on the embodiment. In some embodiments, enzymes and stabilizers may
not be added to the supplement, and in other embodiments the
supplement may contain either an enzyme or a stabilizer, but not
both. In some embodiments, Vitamins A, D, or E may be added to the
supplement.
[0015] As discussed herein, the supplement may be used to replace
anywhere from 1-15% of a standard feeding ration for poultry.
However, in some embodiments the supplement may comprise more than
15% of the feed ration for poultry.
[0016] As used herein, "poultry" refers to any number of birds that
may be kept for purposes of harvesting their eggs, meat, or other
poultry products. These include, but are by no means limited to,
chickens, turkeys, ducks, geese, quail, and ostrich.
[0017] As used herein, "poultry products" refers to any part of a
bird that may be used for consumption or other purposes. Poultry
products include, but are not limited to, eggs, meat, feet, livers,
and hearts. When the poultry product is an "egg", to "obtain" means
to collect the egg or eggs from a bird. When the poultry product is
meat or another body part of the bird, to "obtain" means to cut out
that part of the bird.
[0018] As shown in the examples, poultry fed the feed supplement
prepared according to the invention experience an increase in
omega-3 levels.
[0019] The invention is further illustrated by way of the following
examples. However, one of ordinary skill in the art will recognize
that the invention is in no way limited by the examples.
Example 1
Comparative Analysis of Supplement
[0020] In a first example, a feed supplement ("SUPP1") containing
the following ingredients is prepared:
[0021] 50% Flax seeds
[0022] 49.625% DDGS
[0023] 0.125% Dried Aspergillus Niger Fermentation Product
[0024] 0.25% Ethoxyquin
[0025] The flax seeds and DDGS are combined and extruded at a
temperature around 260 degrees to create a meal. After the meal has
cooled, the dried aspergillus niger fermentation product and
ethoxyquin are added.
[0026] Once prepared, the feed supplement exhibited the nutritional
information shown in Table 1 below:
TABLE-US-00001 TABLE 1 Nutritional Information of SUPP1 Nutrient
Name Units Value CR PROTEIN PCT 24.000 CRUDE FAT PCT 21.500 CRUDE
FIBER PCT 7.500 CALCIUM PCT .500 PHOS-TOTAL PCT .670 PHOS-AVAIL PCT
1.000 M E POULTRY KCL/LB 1,870.000 LYSINE PCT 1.000 EQIV LYSINE PCT
1.000 METHIONINE PCT .500 METH & CYSTINE PCT 1.000 TRYPTHOPHAN
PCT .290 ARGININE PCT 1.610 THREONINE PCT .950 LINOLEIC ACID %
3.000 DRY MATTER PCT 92.000 XANTHOPHYLL MG/LB 8.014 SALT PCT .350
ASH PCT 6.354 VIT A (TOTAL) KIU/LB 1.550 VITAMIN D-3 KIC/LB .175
RIBOFLAVIN MG/LB 4.306 CHOLINE MG/LB 968.397 NIACIN MG/LB 41.184
PANTOTHENTIC ACI MG/LB 8.095 VITAMIN B-12 MCG/LB 6.564 FOLIC ACID
MG/LB .454 BIOTIN MG/LB .349 THIAMIN MG/LB 4.316 PYRIDOXINE MG/LB
3.252 VITAMIN E IU/LB 11.000 SODIUM PCT .220 POTASSIUM PCT .911
MAGNESIUM PCT .291 SULFUR PCT .473 SELENIUM PPM .153 CHLORIDE PCT
.229 MANGANESE MG/LB 23.178 ZINC MG/LB 38.076 IRON MG/LB 52.489
COPPER MG/LB 3.950 COBALT MG/LB .117
[0027] Three different groups of chickens were obtained and fed
three different dietary treatments. One of the treatments, T1, did
not include the feed supplement, while the other two treatments, T3
and T4, contained the supplement as 6% and 10% of the total dietary
treatment, respectively. The ingredients of the dietary treatments
T1, T3 and T4 is shown in Table 2 below:
TABLE-US-00002 TABLE 2 Dietary Treatment Rations (as-fed basis) T1
T3 T4 Ingredient, lb (No Supp1) (6% Supp1) (10% Supp1) Corn 1150
965 895 Soybean Meal 370 290 280 DDGs 200 200 200 Wheat Midds 55
200 200 Canola Oil -- 10 10 Calcium Carbonate 116 119 119 (Small)
Calcium Carbonate 75 75 75 (Large) SUPP1 -- 120 200 Salt 5.3 4.8
4.6 Sodium Carbonate 2.0 2.0 2.0 Monocalcium Phosphate 13.0 -- --
Lysine 0.85 1.85 1.55 DL Methionine 2.25 2.35 2.20 Vitiamin/Trace
Mineral 10 10 10 Premix Choline Chloride 0.50 0.50 0.50 Allzyme SSF
0.30 0.30 0.30 Ronozyme P-CT 0.22 0.22 0.22 Total 2,000.42 2,001.02
1,999.37
[0028] A table of comparative nutritional value of the different
dietary treatments is shown in Table 3 below.
TABLE-US-00003 TABLE 3 Nutritional Value of Dietary Treatments T1
T3 T4 Nutrients (No Supp1) (6% Supp1) (10% Supp1) ME Poultry, 1300
1300 1308 kcal/lb Crude Protein, % 16.5 16.5 17.0 Crude Fat, % 3.6
5.2 5.9 Crude Fiber, % 2.8 3.6 3.8 Calcium, % 4.0 4.1 4.1
Phosphorus, % 0.69 0.70 0.71 Total Lysine, % 0.89 0.88 0.88 Total
0.43 0.43 0.43 Methionine, % Total Met + .73 .74 .75 Cys, % Sodium,
% 0.18 0.19 0.19
[0029] The chickens used were Lohmann Selected Leghorn (LSL) laying
hens that were in lay upon allotment to treatments. The hens were
fed the T1 control diet for four weeks prior to the start of the
trial. Once the trial began, the laying hens were fed only one of
the T1, T3 or T4 dietary treatments for the duration of the
trial.
[0030] A randomized complete block design was used, where the
blocking factor was room location and cage level. 18 cages
containing two compartments each were used, and each compartment
contained 2-3 hens, for a total of 96 hens. Each compartment
contained a bowl waterer and a self-feeder. The room contained a
light timer/dimmer system that provided the hens with 16 hours of
artificial daylight. Forced air ventilation was used in the room,
and the room temperature was set at 68.degree. F.
[0031] Nine replications per treatment were used, and the trial was
six weeks in length. Individual eggs were collected and weighed
daily to determine the size category of each egg. The number of
eggs per compartment was recorded daily by size category, which was
done pursuant to American Egg Board classifications, which can be
found at www.aeb.org. In order to perform nutrient profiling of the
eggs, two eggs from each pen were collected on Day 0 (prior to the
start of the trial), Day 14, Day 18, and Day 42. After each
collection period, collected eggs were sent to Lipid Technologies,
Austin, Minn., for analysis. The two eggs from each pen were pooled
together for nutritional analysis. The Omega-3 content of the eggs
of the laying hens fed the four different dietary treatments are
shown in Table 4 below. These parameters are based on mg/50 g
pooled egg sample (no shell).
TABLE-US-00004 TABLE 4 Comparison of Omega-3 content in Eggs of
Laying Hens Parameter T1 T3 T4 Total Omega 3 FA, mg D14 49.4 125.7
208.3 D28 59.2 150.6 210.1 D42 46.7 148.2 229.4 Average D14 &
D28 54.3 138.1 209.2 Overall Average 51.8 141.5 215.9
[0032] As shown in Table 4, eggs laid by the hens that were fed the
T4 dietary treatment that was comprised of 10% SUPP1, had the
greatest concentration of Omega-3 fatty acids.
Example 2
Supplement Analyzed Against Specialty Egg Standard Diet
[0033] In this Example, the same type of hens and procedures were
used as in Example 1, with the following differences: 100 total
hens were used, the eggs were collected on Days 21, 28, 35, 49, and
63, and the collected eggs were sent to a specialty egg laboratory
for assay.
[0034] The ingredients for the dietary treatments used are shown
below in Table 5, and designated as T1, T5, T6, and T7. T1 in this
example is the same as T1 in the first example. Supp1 is the same
as Supp1 in the first example.
TABLE-US-00005 TABLE 5 Dietary Treatment Rations (as-fed basis) T1
T5 T6 T7 Ingredient, lb (No Supp1) (No Supp1) (3% Supp1) (6% Supp1)
Corn 1150 1095 1040 965 Soybean Meal 370 345 325 290 DDGs 200 200
200 200 Wheat Midds 55 110 150 200 Canola Oil -- 10 10 10 Calcium
116 114 119 119 Carbonate (Small) Calcium 75 75 75 75 Carbonate
(Large) SUPP1 -- -- 60 120 Flaxseed -- 30 -- -- Salt 5.3 4.6 5.3
4.8 Sodium 2.0 2.0 2.0 2.0 Carbonate Monocalcium 13.0 2.0 1.0 --
Phosphate Lysine 0.85 1.05 1.35 1.85 DL Methionine 2.25 2.35 2.35
2.35 Vitamin/Trace 10 10 10 10 Mineral Premix Choline 0.50 0.50
0.50 0.50 Chloride Allzyme SSF 0.30 0.30 0.30 0.30 Ronozyme 0.22
0.22 0.22 0.22 P-CT Total 2,000.42 2,002.02 2,002.02 2,001.02
[0035] T5 is an specialty egg standard diet, with one difference
between it and the T1 dietary treatment is that it contains
flaxseed.
[0036] A table of comparative nutritional value of the different
dietary treatments is shown in Table 6 below.
TABLE-US-00006 TABLE 6 Nutritional Value of Dietary Treatments T1
T5 T6 T7 Nutrients (No Supp1) (No Supp1) (3% Supp1) (6% Supp1) ME
Poultry, 1300 1300 1300 1308 kcal/lb Crude Protein, 16.5 16.5 16.5
16.5 % Crude Fat, % 3.6 4.5 4.6 5.2 Crude Fiber, % 2.8 3.1 3.3 3.6
Calcium, % 4.0 4.0 4.1 4.1 Phosphorus, % 0.69 0.70 0.69 0.70 Total
Lysine, % 0.89 0.89 0.89 0.88 Total 0.43 0.43 0.43 0.43 Methionine,
% Total Met + .73 .73 .73 .74 Cys, % Sodium, % 0.18 0.18 0.19
0.19
[0037] The baseline omega-3 concentrations of eggs prior to the
trial were 63 mg. Table 7, shown below, shows a comparison of the
Omega-3 content in the hens fed T1, T5, T6, and T7.
TABLE-US-00007 TABLE 7 Comparison of Omega-3 content in Eggs of
Laying Hens Parameter T1 T5 T6 T7 Total Omega 3 FA, mg D21 59.38
99.26 104.26 142.44 D28 50.78 95.56 104.11 136.44 D49 55.89 96.11
103.72 139.44 Average D21 & D28 54.39 96.61 103.72 139.44
Overall Average 54.96 96.39 101.91 137.41
[0038] After 49 days, all of the hens were placed on the control
diet for 28 days. In Table 8 below is shown the resulting levels of
Omega-3 in the eggs at day 63, 14 days after all hens were placed
on the control diet.
TABLE-US-00008 TABLE 8 Omega-3 content in eggs on Day 63 Parameter
T1 T5 T6 T7 Total Omega 3 FA, mg D63 68.44 71.44 71.67 73.00
[0039] The results from this trial showed that eggs from hens fed
with the T7 dietary treatment (containing 6% Supp1) had the
greatest omega-3 fatty acid concentrations when compared to the
control diet (T1), and the T5 and T6 diets. The Omega-3
concentrations decreased to normal levels 14 days after the hens
were removed from their dietary treatments and placed back on the
control diet. The T6 and T7 dietary treatments did not impact egg
size, laying rate, or ADFI of the hens during the test period, or
the post-test period.
Example 2
Analysis of Amino Acid Digestibility and True Metabolizable Energy
(TME)
[0040] The amino acid digestibility and true metabolizable energy
(TME) of whole flax seed, ground flax seed, DDGS, and co-extruded
flaxseed and DDGS (50% flaxseed, 50% DDGS) was tested. First, the
amino acid concentrations in flax, DDGS, and extruded flax+DDGS
were analyzed. The results are shown in Table 9 below:
TABLE-US-00009 TABLE 9 Amino Acid Concentrations (%) in flax, DDGS,
and extruded flax + DDGS Theoretical Extruded Amino of Flax + %
Acid Flax DDGS 50/50% DDGS Improvement ASP 2.05 1.70 1.88 2.12 12.8
THR 0.79 1.04 .92 1.06 15.2 SER 0.88 1.20 1.04 1.29 24.0 GLU 3.90
3.68 3.79 4.40 16.1 PRO 0.76 2.08 1.42 1.68 18.3 GLY 1.29 1.06 1.18
1.30 10.2 ALA 0.99 1.86 1.43 1.65 15.4 CYS 0.35 0.51 .43 0.49 14.0
VAL 1.17 1.33 1.25 1.25 0 MET 0.42 0.54 .48 0.53 10.4 ILE 0.99 1.05
1.02 0.98 -4.0 LEU 1.32 3.04 2.18 2.52 15.6 TYR 0.56 0.99 .78 0.92
17.9 PHE 1.08 1.28 1.18 1.29 9.3 LYS 0.88 0.93 .9 0.95 5.6 HIS 0.51
0.79 .65 0.71 9.2 ARG 2.12 1.22 1.67 1.81 8.4 TRP 0.27 0.21 .24
0.29 20.8
[0041] The lysine content of the combination of flaxseed and DDGS
on a dry matter basis is 0.905% compared to 0.950% for the extruded
combination. This represents an increase of 4.9% in the extruded
combination versus the dry combination. In converting to an "as
fed" basis, the lysine content of the combination is 0.83% compared
to 0.92% for the co-extruded product, or an uplift of 10.8%.
[0042] The methionine content for the combination of flaxseed and
DDGS is 0.48% on a dry matter basis compared with 0.53% for the
co-extruded product, providing an uplift of 10.4%. The
corresponding methionine value expresses "as fed" is 0.46% for the
combination and 0.51% for the co-extruded product, providing an
uplift of 17.6%.
[0043] The dry matter cystine content for the combination is 0.43%
and 0.49% for the coextruded product, providing an uplift of 13.9%.
The corresponding "as fed" cystine values for the combination are
0.39% and 0.47% for the co-extruded product, contributing to a
20.5% uplift.
[0044] The total sulphur-containing amino acid content (methionine
and cystine) for the combination on a dry matter basis was 0.91%
compared to 1.03% for the extruded product for an uplift of 10.1%.
The corresponding value for the combination on an "as fed" basis
was 0.826% for the co-extruded product was 0.99% providing an
uplift of 19.9%.
[0045] The true metabolizable energy of whole flax, ground flax,
DDGS, and extruded flax+DDGS was also compared, and the data is
shown in Table 10 below.
TABLE-US-00010 TABLE 10 True Metabolizable Energy Evaluation of
whole flax, ground flax, DDGS, and Extruded Flax + DDGS Gross
Energy Avg. TME.sub.n Sample as-is(kcal/g) Dry Matter (%) (kcal/g
DM) Whole 6.287 93.5 2.783 Flax.sup.1 DDGS 4.787 88.9 3.068
Extruded 5.717 96.6 3.791 Flax + DDGS
[0046] The true metabolizable energy (tME) value of the theoretical
mixture of 50% whole flax and DDGS is 2,926 k cal/kg (1,330
kcals/lb). The equivalent value for the co-extruded product is
3,791 kcal/kg (1,723 kcals/lb). This represents a 29.6% improvement
in tME. The "as fed" value for the combination of whole flax and
DDGS is 2,664 kcal/kg (1,211 kcals/lb) and for the co-extruded
product 3,662 kcal/kg (1,664 kcals/kg), representing a 37% uplift
on an "as fed" basis.
[0047] It is noted that there is a significant (43%) increase in
tME when whole flax is ground. Unfortunately this process releases
oil which is subject to rancidity. This in turn potentially affects
both production and the flavor of eggs and poultry meat, especially
when fed at high levels (up to 5%) in diets
[0048] While certain embodiments of the present invention are
described in detail above, the scope of the invention is not to be
considered limited by such disclosure, and modifications are
possible without departing from the spirit of the invention as
evidenced by the claims. One skilled in the art would recognize
that such modifications are possible without departing from the
scope of the claimed invention.
* * * * *
References