Impact of soymilk on productive and biochemical performances as well as economic indices of two commercial broiler breeds

Abstract EN

A study was conducted to determine the effect of soymilk on growth performance, carcass traits, blood parameters, kidney and liver functions as well as economic indices.

A total number of 40 of one day old chicks of two commercial broiler breeds (Cobb 500 and Avian 48) were randomly assigned to four equal groups (10 each), control and treated with soymilk for each breed.

Results revealed non-significant differences between the two breeds for the studied parameters except Cobb 500 breed had significantly higher AST level than Avian 48.

Regarding to the effect of treatment and the interactions, treated groups from both breeds revealed improved growth performance (final body weight, weight gain, feed conversion ratio and carcass traits), and decreased feed consumption and consequently decreased production costs and increased profit.

Supplementation of soymilk elevated blood proteins, and reduced blood lipid profile.

Kidney and liver function parameters significantly increased by supplementation of soymilk except for creatinine level.

In conclusion, the present results suggest addition of soymilk to drinking water of broilers ages of 17-20, 27- 30 and 37-40 days would have positive effects on the productivity and lipid profile, as well as profitability.