»POULTRY NUTRITION
of Nebraska-Lincoln research program in
poultry diets for the last three years.
and meat and bone meal with enzyme supplementation in layer
diets
Research objectives on DDGS in
poultry diets, 2007-2010:
✔To evaluate high inclusion of DDGS
in feed for laying hens over a production cycle
✔Determining the maximum inclusion
rates of DDGS in layer diets supplemental with Alltech SSF
✔Examining synergies from DDGS
Ascertaining the maximum
inclusion level of DDGS in
layer rations
When DDGS was incorporated in
experimental diets, synthetic lysine
and a fat blend were added. Dicalcium
phosphate was decreased with incremental DDGS levels in diets. Feeding
Table 3. Levels of DDGS by Enzyme interaction Levels of DDGS Egg production (%) Egg weight (g) Egg mass (g/hen/ day) Feed Intake (g/hen/ day) Feed Price ($/ton) 0% 93.39 53.94 50.40 101.52 251.88 0% Plus SSF 93.37 52.95 49.45 103.11 243.2 10% 93.72 52.87 49.53 102.21 229.88 10% Plus SSF 93.21 53.56 49.92 100.54 222.28 20% 90.41 53.04 47.90 101.47 208.8 20% Plus SSF 90.53 52.36 47.40 101.54 200.8 30% 91.23 53.04 48.38 101.07 187.12 30% Plus SSF 90.91 52.76 48.55 101.88 179.4 0% 88.56 53.19 47.09 103.19 166.72 40% Plus SSF 87.03 52.27 45.44 104.73 166.72 P-Value 0.8185 0.6983 0.7732 0.7615 <0.0001 Standard Error 3.0518 0.6318 0.8768 1.3964 0
Results of the long-term trial indicated a slightly lower level of egg production and egg mass at the
40% level of DDGS inclusion.
25% DDGS to laying hens saved $20.92
and $9.92 per ton for Phase I and Phase
II compared to diets devoid of DDGS.
In this initial study, results indicated
that feeding corn with DDGS at levels
of up to 25% had no negative effect
on egg production parameters during
either Phase. Feeding DDGS at 20%
and 25% affected egg weight in Phase
I but not in Phase II.
This was due to changing the amino
acid balance from fixed lysine and
total sulphur-containing amino acids
in Phase I to ;xed lysine and TSAAs
during Phase II.
Feeding high inclusion rates of
DDGS is possible if amino acid balance is achieved. In addition, DDGS
can replace some dicalcium phosphate
in layer diets to reduce feed cost. The
reduction in nitrogen and phosphorous
excretion were positive bene;ts of feeding high levels of DDGS.
Effects of feeding DDGS with
SSF enzyme
This trial was conducted on laying
hens which were fed 0%, 10%, 20%,
30% or 40% DDGS with or without
Allzyme SSF (Alltech) enzyme in a
factorial arrangement. Diets were formulated to be isocaloric and isonitrog-enous. When SSF enzyme was added
to the diets, metabolizable energy was
