INDUCED MOULTING IN AGED HENS AND ITS EFFECT ON ALBUMEN QUALITY
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Date
2011-05
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TANUVAS
Abstract
A study was carried out to find out the effect of induced moulting of commercial
SCWL laying hens at 60, 65 and 70 weeks of age group. A control group was kept without
moulting at their respective ages. The layers were reared in cages for the entire experimental
period adopting standard managemental practices. The layers were fed commercially
available layer diet. After 28 days period of egg production (pre - moult), the layers were
subjected to induced moulting by feed and water restriction followed by ad - libitum feeding
and had free access to wholesome water. Seventeen hours photoperiod was provided daily
through out the post - moult laying period. The birds, which were force moulted at the age
group of 60, 65 and 70 weeks, had numerically higher egg production, lesser broken and
shell less eggs after induced moulting, as compared to their respective control groups.
Moulting improved the egg quality characteristics viz. albumen index and Haugh unit. As
per experimental results observed, it is concluded that moulting can be induced in layers at
the age of 70 weeks for improved egg quality characteristics.
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Keywords
Veterinary Science, Poultry Science