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วันพุธที่ 19 สิงหาคม พ.ศ. 2552

Beak Trimming


Beak trimming is not necessary in all management systems,
however, if beak trimming is done, proper procedures should be followed.

The pullets are most successfully beak trimmed at hatch by infrared beak treatment or between 7-10 days of age using a precision cam activated beak trimmer with guide plate
holes of 4.00, 4.37, and 4.75 mm (10/64, 11/64, and 12/64 in). Males are just tipped on their beaks at the same age as the pullets. The proper size hole should be selected to
provide the width of 2 mm between the nostrils and the cauterizing ring. The proper size hole will depend both on size and age of the chicks. Beaks should be re-trimmed at 12-14 weeks of age.
A cherry red color blade has been recommended for proper cautery. However, a better way to measure blade temperature is by use of a pyrometer to keep the blade at approximately 595ฐC (1100ฐF). The use of a line voltage meter and chart available from the Hy-Line website will facilitate maintaining the proper blade temperature at all times. A variation of 38ฐC (100ฐF) is common due to external influences and cannot be detected by the human eye.


The following precautions must be observed at all times:


1. Do not beak-trim sick birds.
2. Do not hurry.
3. Use electrolytes and vitamins (containing vitamin K) in
the water two days before and two days after beak
trimming.
4. Keep feed at the highest level for several days after
beak trimming. If a coccidiostat is being used in the
feed, supplement it with water soluble coccidiostats
until feed consumption returns to normal.
5. Use only well trained crews for beak trimming.

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