عنوان مقاله [English]
نویسندگان [English]چکیده [English]
A study was conducted to determine the effects of diet formulation on Arian broiler breeder performance in their 50 to 64 wks of age. One hundred and sixty eight female and 24 male breeders were employed in 8 treatments of 3 replicates (7 females plus a male) in a completely randomized design (a factorial experience of 2 × 2 × 2). Eight experimental diets were formulated based on three factors, the first factor including, two levels of Apparent and True Metabolisable Energy corrected for nitrogen (AMEn and TMEn), the second factor being:, two levels of Total Amino Acids (TAAF) and Digestible (DAAF) of Feed, The third factor was included two levels of broiler breeder hens Requirements as based on Total Amino Acids (TAAR) and Digestible ones (DAAR). The results indicated that egg weight was significant difference on the main effects of energy and the main effects of amino acids of feed and requirements no significant (p<0.05). Treatment No. 3 (AMEn + DAAF + TAAR) was at the best level significantly in egg weight, 68.97 (g), egg production, 62.45, egg mass, 43.1 (g/hen/day) and feed conversion ratio 3.59 and treatment No. 7 (TMEn + DAAF + TAAR) was the worst level significantly in egg weight 66.51 (g), egg production, 48.21, egg mass, 31.99 (g/hen/day) and feed conversion rate 5.07. Percentage of eggs can incubate and hatchability was significant in the main effects of energy, amino acids of feed and requirements and fertility was significant in the main effects of energy and amino acids of feed, number of chicks per hen was significant in the main effect of energy and amino acid requirements (p<0.05). Percentage of eggs can incubate was in treatment No. 5 (TMEn + TAAF + TAAR), 99.48 %, fertility was in treatment No. 4 (AMEn + DAAF + DAAR) , 91.87 % , hatchability was in treatment No. 2 (AMEn + TAAF + DAAR), 78.37% and the number of chickens obtained from any hens during the experimental period (50 to 64 weeks), was in treatment No. 6 (TMEn + TAAF + DAAR), 37.83 chicks, at the highest significantly level compared to Duncan multiple range test (p<0.05). This experiment showed that the type of diet formulation had significant effects on broiler breeder performance.