PENGARUH TINGKAT PROTEIN DENGAN IMBANGAN ENERGI YANG SAMA TERHADAP PERTUMBUHAN AYAM LEHER GUNDUL DAN NORMAL SAMPAI UMUR 10 MINGGU THE EFFECT OF PROTEIN LEVELS WITH THE SAME ENERGY BALANCE ON THE GROWTH OF NAKED NECK AND NORMAL CHICKEN UNTIL THE AGE OF 10 WEEKS

The purpose of this study was to determine the effect of protein levels with the same energy balance and the effect feather condition on the growth and interaction of Naked Neck chicken and normal chicken until the age of 10 weeks. This study was conducted on feed factor, treatment of three feeding with protein and energy content balance (1:150), P1 (20.94% protein : 3139.43 kcal/kg energy), P2 (18.91% protein : 2839.20 kca/kg energy), P3 (17.32% protein : 2596.28 kcal/kg energy). Feed and drinking water were ad libitum. The effect of feather condition is Naked Neck chicken and normal chicken. This study was using 84 DOC Naked Neck chicken and 72 DOC normal chickens. Data taken include body weight, the weight gain, feed consumption and feed convertion. Data were analyzed by factorial completely randomized design pattern. The results showed that there was no interaction between the effect of feed with protein-energy balance and the effect of feather condition on feed consumption, and feed convertion. Feeding with same protein-energy balance showed highly significant (P<0.01) on body weight until the age of 10 weeks, the weight gain except 2–4 week of age, the feed consumption until 4–6 week of age, the feed convertion except 8–10 week of age. The differences of the feathers conditions do not affect on weight, the weight gain, feed consumption except 8–10 weeks, and feed convertion. From this study could be concluded that feed with protein-energy balance (20.94% : 3139.43 kcal/kg) is highest to support the growth of Naked Neck chickens and normal chicken until the age of 10 weeks. The growth of Naked Neck chickens and normal chicken were same until the age of 10 weeks. The appearance interaction between the effect of the protein level with the same energy balance and the effect of feather conditions do not occur in feed consumption and feed convertion of Naked Neck chicken and normal chicken until the age of 10 weeks.