Since the report of Hutt (1959) the sex-linked recessive dw gene has been identified to replace its normal allele dw^from normal broiler dams (Herat and Ricard, -1974; Khan §t al. T§15)-. However, dwarf egg type pullets have not developed its identity due to 15$ reduction in egg number and 10 per cent in egg size, inspite of the advantageous reduction of body size by 33$;better feed utilization and less housing space requirements. Cherry and Seigel (1978) indicated that phenotypic expression of pullets inheriting dw gene is modified by the background genome,hence have opened new avenues of research for development of dwarf egg layers. The present study describes the nutritional requirements of Narmada-XL dwarf egg layer developed at Jawaharlal Nehru Agricultural University Jabalpur, in terms of dietary protein and metabolizable energy.

Baghel. KK S., A. G Khan

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 7. Symposia (1), , 525-528, 1982
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