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The effect of adding different levels of iron and copper on the characteristics of broiler carcass

تأثير إضافة مستويات مختلفة من الحديد و النحاس في مواصفات ذبيحة الفروج

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 Publication date 2012
and research's language is العربية
 Created by Shamra Editor




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The research was conducted at the poultry farm in Kharabo, Faculty of Agriculture, Damascus University. 1080 chicks of Lohman hybrid, one day old, distributed randomly and equally into six different groups, G1….G6 (180 chicks/ group) with three replicates in each group (60 chicks per replicate). Chicks in all groups were fattened for 42 days on Diets composed of vegetarian feeding stuffs, based on corn, soya bean meal and different additives. Chicks of G1 were fed on the main diet without adding iron or copper. The chicks in G2 and G3 were fed on the main diet mixed with 80 and 160 ppm of iron respectively. The vhicks of G4 were also fed on the main diet mixed with 8 ppm of copper. The Chicks of G5 and G6 were fed on the main diet mixed with iron and copper (80 and 8 ppm) and (160 and 8 ppm), respectively. Results demonstrated that adding iron and/or copper to the broiler diet was safe for chickens up to 42 days of age and did not affect significantly on carcass parameters. Supplementation of broiler diet with 8 ppm of copper was not associated with accumulation of copper in the tissues of liver, leg bone, breast, and thigh. Adding 80-160 ppm of iron to the broiler diets was not associated with high level of accumulation of iron in the tissues of breast and thigh but with high concentrations (p < 0.05) in the tissues of liver and leg bone.

References used
Aoyagi, S. and D. H Baker. 1993. Nutritional evaluation of copper, lysin and zinc–lysin complexes for chicks, Poultry. sci., 72:165-171
Arias, M. and E. A. Koutsos 2006. Effects of copper source and level on intestinal physiology and growth of broiler chickens, Poultry Sci.. 85:999– 1007
Bakalli, R. I., G. M. Pesti, W. L. Ragland and V. Konjufca. 1995. Dietary copper in excess of nutritional requirement reduces plasma and breast muscle cholesterol of chickens. Poultry. Sci., 74: 360–65

Artificial intelligence review:
Research summary
تُعنى الدراسة بتقييم تأثير إضافة مستويات مختلفة من الحديد والنحاس إلى علائق الفروج على مواصفات الذبيحة وتركيز المعادن في الأنسجة. أجريت التجربة على 1080 صوصًا من هجين لوهمان في مزرعة خرابو، حيث وزعت الصيصان إلى ست مجموعات غذيت على خلطات علفية نباتية مع إضافة الحديد والنحاس بتركيزات مختلفة. أظهرت النتائج أن إضافة النحاس بتركيز 8 ppm لم تؤثر معنويًا على تراكم النحاس في الأنسجة، بينما أدى إضافة الحديد بتركيزي 80 و160 ppm إلى زيادة تركيز الحديد في الكبد وعظمة الساق بشكل معنوي. كما تبين أن إضافة الحديد والنحاس كانت آمنة ولم تؤثر سلبًا على مواصفات الذبيحة حتى عمر 42 يومًا. خلصت الدراسة إلى أن إضافة الحديد والنحاس إلى علائق الفروج يمكن أن تكون مفيدة لتحسين الوزن الحي دون تأثيرات سلبية على الصحة العامة للفروج.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة في مجال تغذية الدواجن، حيث تسلط الضوء على تأثير إضافة المعادن على الأداء الإنتاجي ومواصفات الذبيحة. ومع ذلك، كان يمكن أن تكون الدراسة أكثر شمولية إذا تضمنت تحليلاً أعمق لتأثيرات المعادن على الصحة العامة للفروج على المدى الطويل. كما أن الدراسة لم تتطرق إلى تأثير هذه الإضافات على جودة اللحم من حيث الطعم والقوام، وهو جانب مهم يجب أخذه في الاعتبار. بالإضافة إلى ذلك، كان من الممكن تحسين الدراسة بإجراء تجارب مماثلة على أنواع أخرى من الدواجن أو في ظروف بيئية مختلفة للتحقق من تعميم النتائج.
Questions related to the research
  1. ما هو الهدف الرئيسي من الدراسة؟

    الهدف الرئيسي من الدراسة هو تقييم تأثير إضافة مستويات مختلفة من الحديد والنحاس إلى علائق الفروج على مواصفات الذبيحة وتركيز المعادن في الأنسجة.

  2. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    النتائج الرئيسية هي أن إضافة النحاس بتركيز 8 ppm لم تؤثر معنويًا على تراكم النحاس في الأنسجة، بينما أدى إضافة الحديد بتركيزي 80 و160 ppm إلى زيادة تركيز الحديد في الكبد وعظمة الساق بشكل معنوي.

  3. هل كانت إضافة الحديد والنحاس آمنة للفروج؟

    نعم، كانت إضافة الحديد بتركيزي 80 و160 ppm والنحاس بتركيز 8 ppm آمنة للفروج حتى عمر 42 يومًا ولم تؤثر سلبًا على مواصفات الذبيحة.

  4. ما هي التوصيات التي خلصت إليها الدراسة؟

    توصي الدراسة بإضافة الحديد والنحاس إلى علائق الفروج لتحسين الوزن الحي دون تأثيرات سلبية على الصحة العامة للفروج، مع ضرورة إجراء دراسات إضافية لتحليل تأثير هذه الإضافات على جودة اللحم والصحة العامة على المدى الطويل.

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