Year: 2018 | Month: October | Volume 8 | Issue 5
Effect of Low Protein Diet Supplemented with Protease Enzyme and Sodium Bisulphate in Litter on Carcass, Biochemical, Respiratory Tract Lesions and Immunity Status of Birds during Winter Season
Abstract:
The quality of litter is a single major factor in deciding the emission of various harmful gases especially ammonia. Therefore a study was conducted to determine the effect of low protein diet supplemented with protease enzyme and litter amended with sodium bisulphate on carcass parameters, serum biochemical, respiratory tract lesions and immune status of birds during winter season. The experiment was conducted for six week on 240, day old broiler chicks which were randomly distributed into four treatment groups. One bearing control group (Tc) had no dietary and litter amendments and the other three included, litter amendment with sodium bisulphate (Ts), dietary amendment with low protein supplemented with protease enzyme (Tp) and both dietary and litter amendment (Tsp), each having 60 birds in three replications of 20 number. Blood sample for serum biochemical parameters were collected at 3rd and 6th week of age and at the end of experiment, four birds from each treatment were randomly slaughtered for carcass trait measurement and respiratory tract lesions. The results revealed a higher dressing and breast percentage in Ts group as compared to other treatment groups. Total protein level was also significantly higher in Ts and control group. The histopathology revealed that the gross as well as microscopic lesions revealed a better health status of chicks in the treatment groups Ts and Tsp than those in control and Tp group. The immune status was also better in the litter treated groups. Thus it can be concluded that the treatment of litter with sodium bisulphate had significant influence on carcass, serum biochemical, respiratory and foot pad lesions and immune status of birds.
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