APPENDIX
Page 29 – 33
Chapter on Water
Aviagen Turkeys would like to thank Dr. Susan Watkins from the
University of Arkansas for her contribution to this chapter and for
her work with the turkey industry on developing water sanitation
programmes.
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Automatic weighing
Automatic weighing systems should
be located where large
numbers of birds congregate and where individual birds will
remain long enough for weights to be recorded (see Figure 28).
Inaccurate live weight estimation will result from small sample sizes
or weights taken from birds which are not representative of the
flock as a whole. For example, older and heavier males tend to use
auto-weighers
less frequently,
which biases the flock mean
downwards.
Readings from any auto-weigher should be regularly checked for
usage rate (number of completed weights per day). The mean
live weights achieved should be cross-checked by routine manual
weighing.
Figure 28.
Automatic weighing
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