بررسی اثر سطح پروتئین و لیزین جیره برکمیت و کیفیت تولید مرغهای تخمگذار در سن 28 تا 42 هفتگی

نوع مقاله : علمی پژوهشی- تغذیه طیور

نویسندگان

1 دانشگاه زابل

2 دانشگاه فردوسی مشهد

چکیده

جهت بررسی اثرات سطوح مختلف پروتئین خام و لیزین جیره بر شاخص های تولیدی تخم مرغ،720قطعه مرغ تخمگذار (Hy-line W-36) با 15 تیمار غذایی تغذیه شدند. تیمارهای غذایی شامل سه سطح پروتئین (14، 15 و 16 درصد) و پنج سطح لیزین (71/0، 74/0، 77/0، 80/0 و 83/0 درصد) بودند که به روش فاکتوریل 5×3 و در قالب طرح بلوکهای کامل تصادفی اعمال شدند. مرغ ها به مدت چهار دوره 28 روزه از سن 28 تا 44 هفتگی تغذیه شدند. هر سه قفس مجاوربا 12 قطعه مرغ یک تکرار را تشکیل دادند و هر چهار تکرار مرغ با یک جیره تغذیه شدند. با افزایش سطح پروتئین جیره، تولید تخم مرغ از 86 به 8 /87 درصد در کل دوره افزایش یافت (5 0/0P< ). وزن تخم مرغ، گرم تخم مرغ تولیدی روزانه، ضریب تبدیل غذا نیز تحت تأثیر سطح پروتئین جیره قرار گرفت (05/0 P

کلیدواژه‌ها


عنوان مقاله [English]

The effect of dietary protein and lysine on egg quality and production of laying hens during 28-42 weeks of age

نویسندگان [English]

  • Hasan Mohammadi Emarat 1
  • Abolghasem Golian 2
  • Abdolmansoor Tahmasebi 2
  • Hasan Kermanshahi 2
1 University of Zabol
2 Ferdowsi university of Mashhad
چکیده [English]

An experiment was conducted to evaluate the effect of dietary crude protein and lysine levels on quality and quantity of egg production. Fifteen diets consisted of 3 levels of protein (14, 15 and 16%) and 5 levels of lysine (0.71, 0.74, 0.77, 0.80 and 0.83 %) in a 35 factorial arrangement were provided. Each diet was randomly fed to 4 replicates of 12 birds, during four periods of 4 weeks (28-44wks of age). Egg number and mortality was recorded daily, whereas feed consumption determined for each period. Eggs from each replicate were weighed at the end of three consecutive days of each period and six eggs were used to measure the egg quality characteristics. Although the feed intake did not affected by dietary protein but the egg production, egg mass and feed conversion were improved significantly (p

کلیدواژه‌ها [English]

  • Protein
  • Lysine
  • Egg production
  • Laying hen
  • Egg quality
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