Previous Page  16 / 48 Next Page
Information
Show Menu
Previous Page 16 / 48 Next Page
Page Background

15

LOHMANN TIERZUCHT

MANAGEMENT GUIDE

15

meal-type consistency. A high proportion of

very fine components or a structure that is

too coarse can lead to selective feed intake

and an unbalanced nutrient supply. A diet

with an extremely fine consistency reduces

the feed intake of the birds and can result in

a lacking supply of certain nutrients. If

pelletising of feed is inevitable for hygienic

reasons the pellets should be crumbled to

the recommended consistency. Single

particles should be never too hard or too

sharp because chicks will refuse to eat them.

During the different growth phases of chicks

and pullets, qualitatively different feed

varieties should be used in which the

nutrient content meets the birds changing

needs. The diets are matched to the nutrient

requirement and weight development at

each stage of growth. The use of chick starter

is recommended if the standard body-

weight is not reached by feeding grower

feed or if the daily feed intake is expected to

be low. The switch to developer should only

be made when the standard body weight

* Individual Particles not bigger than:

3mm in chick superstarter-/starter diets

5mm in grower, developer and layer

Sieve Size

Passing Part

Sieve Size Interval

Part of Interval

0.5 mm

19%

0–0.5 mm

19%

1.0 mm

40%

0.51–1.0 mm

21%

1.5 mm

75%

1.01–1.5 mm

35%

2.0 mm

90%

1.51–2.0 mm

15%

2.5 mm

100%

>2 mm

10%*

100%

Table 4: Recommended Particle-Size Distribution for Chick Starter, Grower,

Developer and Layer Feed (MASH)

The above table should be understood as an example for a homogenous mash feed structure. Different technique in

feed production may lead to different particle sizes and variation. The overall target for mash feed structure needs to

be optimal homogeneity. Mash feed with “some finer” or “some coarser” structure will be optimal as well, as long the

structure ensures optimal homogeneity. Variation in feed structure frombatch to batch and within different feed delive-

ries should be as low as possible. A minimum amount of added fat and/or oil supports homogeneity and palatability of

mash feed in the rearing and laying phase.

NUTRITION

Play Video