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    Effect of Dietary Supplementation with Different Levels of Creatine Monohydrate on Productive and Carcass Performance of Broiler chicks
    (Journal of Zankoy Sulaimani, 2018) Ahmed, Nma Hassan; Rashid, Saman Abdulmajid; Kara, Muhammet Ali
    The study was conducted to investigate the effects of dietary supplementation with different levels of Creatine Monohydrate on productive and carcass performance of broiler chickens. Day old Ross 308 broiler chicks, divided into three periods with 4 treatments for each 3 replicates based on completely randomized design for 42 days. Feed and water were provided as ad libitum. Chicks were divided into four treatments for 3 periods (1-42, 28-42 and 35-42) days, control was 30 birds and for each treatment 90 birds; each treatment for one period contained three replicates of 10 birds. Dietary Creatine Monohydrate was added to the diet from the first day to the end of experimental which lasted 42 days at levels of 0% (Control), for each period 0.05%(T1),0.075%(T2) and 0.1%(T3). The body weight was significantly (P<0.05) there was effect to crea ne Monohydrate supplementa on at period (1-42) on body weight also was effect to crea ne Monohydrate supplementa on at period (1- 42) on weight gain, it was not significantly (P<0.05), effect on breast meat yield at period (1-42). However, Creatine monohydrate had no significant effect on feed intake at the period (1-42, 28-42 and 35-42), there was no significant effect on feed conservation ratio, mortality and Thigh meat yield at periods (1-41, 28-42 and 35-42). Creatine monohydrate had no significant effect on (body weight, weight gain, and breast meat yield) at periods (28-42 and 35-42).
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    Impact of Enzymes Supplementation (?- Amylase and Xylanase) in Diets Contains Corn and Wheat on Performance of Broiler Chickens
    (Journal of Zankoy Sulaimani, 2018) AL-Jaf, Hardi Ahmed Karim; Kara, Muhammet Ali; Rashid, Saman Abdulmajid
    Birds are naturally output enzymes for digesting nutrients. However, birds does not have enzymes to moulder fiber perfectly and that enzymes secretion by salivary glands is very limited, especially to digesting high ratio of starch. So we need to add enzymes (?- Amylase and Xylanase) in the feed to aid digestion. The influence of enzyme supplementation on performance and digestibility in broiler chicks was examined for the diet containing corn and wheat with different levels of enzymes, while the diet containing corn and wheat, and adding enzymes of broiler chickes resulted significant (P?0.05) increases in live body weight, weight gain, feed conversion and carcass weight, The best results for the traits included in this study were recorded by supplementing diet of broiler chicks with enzymes at the level of 0.04 % (T3, T6, and T9).