Aiming at an optimal start of production
with feed intake around 90–100 g/day,
it is recommendable to use a phase 1 feed
with 11.6 ME MJ/kg for a duration of 5–6
weeks. At around 26 weeks a normal phase-
feeding programme with 11.4 ME MJ/kg
should be introduced. The basis for the feed
formulation in terms of nutrient and mineral
content in each phase is the daily nutrient
requirement and actual feed consumption.
The diet for phase 1 is designed to cover the
requirement for maximum egg mass.
The recommended nutrient allowances
shown in the tables 9–11 (phase 1–3) as-
sume a dietary energy concentration of
11.4 MJ/kg (2725 kcal) metabolisable energy,
a house temperature of 20 °C and good
Under these conditions the daily feed con-
is expected to be 110–120g/day. The feed
formulations for phases 2–3 cater for the re-
duced requirement for organic nutrients and
the increasing requirement for calcium as
the hens age.
The time for switching diets
is determined more by the level of pro-
duction and the need for calcium rather
than by age.
Every 10 weeks throughout the laying period
the composition of the diet should be adapt-
ed to the level of production and the hens’
Major changes in the
raw material composition of the various
phase diets or marked changes in feed
consistency should be avoided.
Nutrition and Egg Weight
Within certain limits egg weight can be
adapted to farm specific requirements by
adjusting rations. The following nutritional
factors should be noted:
Feeding for higher body weight/
frame size increases the egg weight
throughout the whole laying period.
crude protein and methionine
feed level in troughs
frequency of feeding
By stimulating feed intake egg weight can
be increased and limited by controlled feed-
ing. In the case of appropriate house con-
struction, there’s the possibility to adjust the
house temperature in the opposite direction
of desired egg weight and feed intake.
ists for specific programmes with recom-
mendations for nutrition and management
adjusted to your conditions and require-