Effect of low protein diets on production performance, egg quality and serum biochemical parameters of gramapriya laying hens Panda Arun Kumar*, Sahoo Biswanath, Kumar Anil ICAR-Central Institute for Women in Agriculture, Bhubaneswar-751003, India *Corresponding author: akpanda59@gmail.com
Online Published on 24 May, 2024. Abstract The present study was conducted to evaluate the effect of low protein diets on production performance, egg quality and serum biochemical parameters of Gramapriya laying hens. A total of 96 Gramapriya laying hens (32 wks) were randomly distributed into four groups with three replicates of 8 birds in each. Diets were formulated with the same level of metabolizable energy but different levels of crude protein (14, 15, 16 and 17%). The ratio of lysine and methionine to CP was kept constant in all the diets. A measured quantity of each diet was fed to one of the four treatments for a period of 12 weeks (32-44 wk) of age. The body weight of laying hens of 14% CP group decrease by 24.28 g. The body weight gain of laying hens increased linearly by increasing the CP content of diet from 15 to 17%. The egg production, egg mass output and feed efficiency improved significantly by increasing dietary CP content from 14 to 15%. Egg weight and egg quality parameters were not influenced due to variation in CP. Total protein concentration in serum of laying hens was lowest in group containing 14% CP. Serum protein and calcium concentrations increased significantly with increasing CP content from 14 to 16%. Increasing the CP content to 16% significantly increased serum uric acid levels. It was concluded that, diet containing 0.74% lysine, 0.32% methionine and 15% CP with 2600 kcal ME/kg diet was found adequate to maintain optimum production performance in Gramapriya laying hens. Top Keywords Egg quality, Gramapriya laying hens, Low protein diets, Production performance, Serum biochemical parameters. Top |