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10

LOHMANN TIERZUCHT

MANAGEMENT GUIDE

10

At first signs that the chicks are not fee-

ling well determine the reason, correct

the situation and check more frequently.

Check after 12 hours the crop if feed is in

it. Do it with more chicks to get a good

impression.

ENVIRONMENT

Environmental conditions have an effect

on the well-being and performance of the

birds. Important environmental factors are

temperature, humidity and level of toxic

gases in the air. The optimal temperature

depends on the age of the birds. The

following table is a guide to the correct

temperature at bird level. As mentioned

before, the birds behaviour is the best

indicator for correct temperature.

Always reduce temperature gradually, and

avoid sudden changes.

If the ventilation system is used to regulate

temperature, take care that the necessary

fresh air is supplied.

Table 1: Desired Temperatures at

Bird Level Dependent on Age

Age

Temperature °C

Day 1–2 *

35–36

Day 3–4

33–34

Day 5–7

31–32

Week 2

28–29

Week 3

26–27

Week 4

22–24

FromWeek 5

18–20

* Body temperatures of 40–41 °C are the optimum for the

chicks.

The relative humidity inside the house

should be about 60–70 %.

The air quality should meet the following

minimum requirements:

Table 2: Minimum Air Quality

Requirements

O₂

over

20%

CO₂

under

0.3%

CO

under

40ppm

NH₃

under

20ppm

H₂ S

under

5ppm