Sushil PrasadRajesh Kumar Sharma2024-07-152024-07-152001https://krishikosh.egranth.ac.in/handle/1/5810211991The following conclusions have been drawn on the basis of results obtained (1) The body weight of both male and female ducks was not influenced by different management systems whereas female's body weight was affected by different managements. The body weight of both male and female ducks was significantly affected under different periods. Decreasing trend of body weight with the advancement of periods was observed in case of both sexes which was regained after successive periods. (2) The percentage hen housed egg production was influenced both by different management as well as periods. Highest egg production was observed in integrated system in comparison to intensive system of management. So far as periods are concerned the highest egg production was observed in the first biweekly period and a decreasing trend with the advancement of periods was recorded. (3) Different management conditions and periods have significant effect on feed efficiency per dozen of eggs and per kg egg mass produced. Significantly superior feed conversion efficiency was observed in integrated system than intensive system of duck raising .A decreasing trend with the increasing period was noticed for both the traits.EnglishThesis