Studies on biochemical profiles of ducks during pre-laying and peak production periods

B. Swathi, J.M. Reddy, K.G. Sudhamayee
Department of physiology, College of Vety Science
Rajendranagar , Hyderabad - 500030

The assessment of productivity of the birds is important for profitable farming. Constant efforts have been made to improve the production potential by conventional breeding procedures which are complicated, time consuming and expensive. Alternatively biochemical markers can help in selecting better individuals at an early age. Most of the earlier studies in these variants were reported in poultry. Hence the study was undertaken to estimate the biochemical variants and correlate these parameters with the egg production. Desi (native to Andhra Pradesh) and Crossbreds (Khaki-Campbell Vs Desi) ducks raised at poultry experimental station Rajendranagar were used for the present study. Twenty birds from each variety group were selected randomly and blood samples were collected from each bird at two stages of production i.e pre-laying (18-20 wks), peak laying (28-30 wks) periods. Serum was separated and analyzed for alkaline phosphatase activity and serum proteins, albumin and globulin concentration. The serum alkaline phosphatase activity was found to be influenced significantly (p<0.01) due to variety as well with stage of production. The other variables such as serum total proteins; protein fractions (serum albumins, globulins and A: G ratio) were also influenced by variety with higher mean values observed in crossbred ducks. A significant increase (p<0.01) was observed in all other parameters except A: G ratio from pre-laying to peak production periods, while A: G ratio showed a significant (p<0.01) decline during peak laying stage.

Source : IPSACON-2005

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