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    Effect of Sumac, Yeast, and Onion on Broiler Chicken Performance
    (2022) Al-Jaf, Hardi Ahmed Karim; Del, Yaser Khorram; Kara, Muhammet Ali
    This study was conducted to determine the effects of sumac, yeast, and onion supplementation to broiler chicken feeds on performance. Four hundred and fifty, one-day-old Ross 308 broiler chicks were obtained from Yagoo Group Hatchery in Sulaymaniyah Province and were randomly distributed into three treatment groups (150 chicks for each group) with six replicates (each 25 chicks). Chicks were raised on floor cages (210 × 200 × 100 cm). T1 (Feed with 0 mg kg-1 sumac, yeast, and onion), T2 (Feed with 10, 2 and 20 mg kg-1 sumac, yeast, and onion for every day) and T3 (Feed with 10, 2 and 20 mg kg-1 sumac, yeast, and onion for 2 days added and 2 days free in the rearing period) experiment groups were constituted. In the study, the effects of the treatments on the performance parameters were found to be statistically significant. In body weight, the highest group in terms of total body weght gain and total feed intake was T3, and it was significantly higher than T2 and control groups (p<0.001). Again, T2 was found to be significantly higher in terms of these parameters compared to the control group (p<0.001). In total, the feed conversion rate (FCR) was found to be statistically significant. While T3 had a similar FCR (1.50) to the control group, it was significantly lower (p<0.001) compared to T2 (1.68). In general, the treatments were found to have a positive effect on performance parameters.
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    IMPACT OF ENZYMES SUPPLEMENTATION ON PERFORMANCE OF BROILER CHICKENS FED IN DIETS CONTAINING CORN AND WHEAT
    (Siirt Üniversitesi Fen Bilimleri Enstitüsü, 2017) Al-Jaf, Hardi Ahmed Karim; Kara, Muhammet Ali
    This study conducted at the Poultry field of Animal Science Department, Faculty of Agricultural Sciences, University of Sulaimany to investigate the Impact of Enzymes Supplementation on Performance of Broiler Chickens Fed on Diets Containing Corn and Wheat. Bird naturally output enzymes for digesting nutrients. However, bird 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 (α- 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 enzyme, While the diet containing corn and wheat, And adding enzymes to the diet of broiler chickens 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 chickens with enzymes at the level of 0.04 % (T3, T6, and T9). The experiment was conducted during the period from March 7th, 2017 to April 17th, 2017 by using 378 Ross 308 broiler chicks, one-day-old. Chicks were allocated to nine treatments of three replicates per group; each group constitutes 14 chicks, 42 chicks pertreatment group.