اثرات استفاده از چند نوع افزودنی در جیره غذایی مرغ های تخم گذار بر عملکرد و فراسنجه های کیفی تخم مرغ

نویسندگان

1 دانش آموخته کارشناسی ارشد علوم دامی و عضو باشگاه پژوهشگران جوان دانشگاه آزاد اسلامی واحد الیگودرز، الیگودرز

2 دانش آموخته کارشناسی ارشد علوم دامی، دانشکده کشاورزی، دانشگاه رازی، کرمانشاه

3 دانشیار گروه علوم دامی، دانشکده کشاورزی، دانشگاه رازی، کرمانشاه

چکیده

به منظور مطالعه اثرات استفاده از دو نوع پروبیوتیک (تپاکس و یسچر)، دو نوع پربیوتیک (فرمکتو و ای ماکس) و یک نوع سینبیوتیک (بیومین) در جیره غذایی (انرژی قابل متابولیسم 2720 کیلوکالری بر کیلوگرم و پروتئین خام 145 گرم بر کیلوگرم) بر عملکرد مرغ های تخم گذار و فراسنجه های کیفی تخم مرغ، تعداد 216 قطعه مرغ تخم گذار نژاد لوهمن در سن 76 هفتگی در 36 قفس توزیع شدند. صفات عملکردی به مدت شش هفته اندازه گیری شد و فراسنجه های کیفی تخم مرغ و در هفته ششم مورد ارزیابی قرار گرفت. استفاده از پروبیوتیک ها، پربیوتیک ها و سینبیوتیک اثری بر تولید تخم مرغ، مصرف خوراک، ضریب تبدیل خوراک و توده تخم مرغ نداشت، ولی وزن تخم مرغ در گروه های دریافت کننده افزودنی بیشتر بود (05/0 P<). ضخامت و وزن پوسته در مرغ هایی که جیرههای حاوی افزودنی دریافت کردند، در مقایسه با گروه شاهد بیشتر بود (05/0 P<). نتایج حاصل از این آزمایش نشان داد که استفاده از افزودنی های تپاکس، یسچر، فرمکتو، ای ماکس و بیومین اثر مثبتی بر عملکرد تولیدی مرغ های تخم گذار ندارد ولی وزن تخم مرغ، ضخامت و وزن پوسته آن را بهبود می بخشد.

کلیدواژه‌ها


عنوان مقاله [English]

Effects of adding various feed additives to diets of laying hens on productive performance and egg quality traits

نویسندگان [English]

  • Mohammad Zarei 1
  • Mohammad Ehsani 2
  • Mehran Torki 3
چکیده [English]

To evaluate effects of adding two probiotics (Thepax and Yeasturer) and two prebiotics (Fermacto and A-Max), and one synbiotic (Biomin) to iso-caloric and iso-nitrogenous diet (ME = 2720 kcal/kg and CP =145 g/kg) on performance of laying hens and egg quality traits, 216 Lohmann LSL-Lite 76-wk old laying hens were divided in 36 cages (n = 6). Productive performance of hens was recorded for six weeks and egg quality characteristics were measured on the last week of trial. Feed additives did not have significant effect on EP, FCR, FI and EM in the present study. Including diets with feed additives in the present experiment significantly increased EW. Egg shell weight and shell thickness were increased in the hens fed additive-included diets compared to hens fed the control diet. In conclusion, feed additives used in this investigation did have beneficial effects on egg quality characteristics in terms of egg shell weight and shell thickness, with no beneficial effects on hens' productive performance.

کلیدواژه‌ها [English]

  • Eggs quality parameters
  • laying hens
  • Prebiotic
  • Probiotic
  • Productive parameters
  • Synbiotic
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