Effect of dietary energy level on performance and carcassb quality of broiler chicks

الملخص EN

The effect of various metabolizable energy level on performance and carcass quality of broiler chicks were studied.

A total of one hundred and fifty one-day old, unsexed (Ross) broiler chicks were randomly .divided into five experimental groups.

Each group was further •subdivided into five replicates at the rate of six chicks per pen in ^complete randomized design.

The birds were fed on five levels of metablizable energy (2827, 2972, 3085, 3162 and 3210 Kcal/kg) with .constant level of dietary protein (22%) for 7 weeks duration.

Health of ; the stock and performance parameters were recorded.

At the end of the \ experiment, the birds were slaughtered, dressing, and used for different ^parameters.

The results indicated that the energy level had significant L(P<0.01) effect on performance and carcass quality of broiler chicks.

|Birds fed the highest energy diet (3210 Kcal/kg) showed better results in |body weight gain, feed efficiency and dressing percentage with the ilowest feed intake as compared to the other experimental diets.

The birds [fed the highest energy diet (3210 kg/kg) had significantly (P<0.01) fhighest carcass fat content and abdominal fat percentage as compared to Idle other diets