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بررسی اثر سطوح مختلف اسید آمینه متیونین در جیره های با پروتئین استاندارد و کاهش یافته بر فراسنجه های تولیدی، متابولیتهای خون و بافت شناسی اجزای روده باریک بلدرچینهای ماده در حال رشد | ||
| علوم دامی | ||
| دوره 34، شماره 133، اسفند 1400، صفحه 129-146 اصل مقاله (2.8 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/asj.2021.352959.2119 | ||
| نویسندگان | ||
| زهرا حاجیان1؛ ایمان حاج خدادادی* 2؛ حسینعلی قاسمی3؛ امیر حسین خلت آبادی فراهانی2 | ||
| 1کارشناس ارشدگروه علوم دامی دانشکده کشاورزی و منابع طبیعی دانشگاه اراک | ||
| 2استادیار گروه علوم دامی دانشکده کشاورزی و منابع طبیعی دانشگاه اراک | ||
| 3دانشیار گروه علوم دامی دانشکده کشاورزی و منابع طبیعی دانشگاه اراک | ||
| چکیده | ||
| اﯾﻦ آزﻣﺎﯾﺶ ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﺗﺎﺛﯿﺮ ﺳﻄﻮح ﻣﺨﺘﻠﻒ ﭘﺮوﺗﺌﯿﻦ و ﻣﺘﯿﻮﻧﯿﻦ ﺑﺮ ﻋﻤﻠﮑﺮد، خصوصیات لاشه و برخی فراسنجههای خونی بلدرچین ماده به صورت طرح کاملاً تصادفی با آرایش فاکتوریل 3×2 اجرا شد. این طرح شامل دو سطح ﭘﺮوﺗﺌﯿﻦ (توصیه NRC و ده درﺻﺪ ﮐﻤﺘﺮ و سه سطح متیونین (توصیه شدهی NRC، ده درصد کمتر و ده درصد بیشتر) بود. در اﯾﻦ ﺗﺤﻘﯿﻖ 360 بلدرچین چهارده روز مورد استفاده قرار گرفت که ﺷﺎﻣﻞ شش تیمار و چهار ﺗﮑﺮار و ﻫﺮ ﺗﮑﺮار ﺷﺎﻣل 15 ﻗﻄﻌﻪ ﺟﻮﺟﻪ ﺑﻠﺪرﭼﯿﻦ ماده ﺑﻮد. نتایج آزمایش نشان داد که اثر متقابل پروتئین و متیونین بر وزن بدن در28 و 35 روزگی معنی دار بوده که مطابق آن تیمار سه بالاترین وزن بدن و تیمار چهار کمترین وزن بدن را داشته است (05/0>P). اثر پروتئین بر ضریب تبدیل خوراک کل معنیدار بود (05/0<P)، به صورتی که بالاترین ضریب تبدیل مربوط به پروتئین سطح 90درصد بود در حالی که بهترین ضریب تبدیل مربوط به پروتئین 100درصد بود. اثر متیونین بر ضریب تبدیل خوراک کل معنیدار بود (05/0<P)، به صورتی که بهترین ضریب تبدیل مربوط به متیونین 110درصد بود. اثر متقابل سطوح پروتئین و متیونین بر مساحت پرز، نسبت ارتفاع پرز به عمق کریپت و ارتفاع پرز ژژنوم بلدرچین ژاپنی ماده معنی دار بود (05/0>P). با توجه به اینکه در مورد صفات عملکردی و صفات بافت شناسی دئودنوم و ژژنوم بهترین عملکرد در تیمار 100درصد پروتئین خام همراه با 110 درصد متیونین مشاهده شد،میتواند توصیهای برای افزایش سطح متیونین به میزان 110 درصد NRC 1994 در بلدرچینهای ژاپنی ماده باشد. | ||
| کلیدواژهها | ||
| بلدرچین ماده؛ متیونین؛ پروتئین؛ عملکرد؛ بافت شناسی | ||
| عنوان مقاله [English] | ||
| Evaluation of different methionine levels in standard and low-protein diets on performance traits, blood metabolite and intestine histology parameters of growing female Japanese quails | ||
| نویسندگان [English] | ||
| zahra hajian1؛ iman hajkhodadadi2؛ Hossein Ali Ghasemi3؛ Amir Hossein Khaltabadi Farahani2 | ||
| 1animal science dep Arak university | ||
| 2arak university | ||
| 3Associate Professor, Department of Animal Science | ||
| چکیده [English] | ||
| This experiment was conducted to investigate the different levels of methionine in Standard and Low-protein Diets on Performance, Carcass Traits, blood metabolite and histology Parameters of growing Female Japanese Quails in a completely randomized design with 2 × 3 factorial arrangement. This experiment was consisted of two levels of protein (recommended level (NRC1994) and 10% higher than recommended level) with three levels of methionine (NRC recommended, 10% lower and 10% higher than recommended). This study, conducted with total of 480, 14-d quails that consisted of 6 treatments and 4 replicates and each replicate consisted of 20 chicks. The raising period for performance evaluation ranged from 14 to 35 days. All experimental diets were differed at crude protein and methionine, but other nutrients was in amount that recommended by NRC 1994. The results showed that interaction of crude protein and methionine had significant effect on body weight at 28, 35 days of age (P<0.05). Protein level had significant effect on total FCR (P<0.05), so lower FCR was resulted from chicks with 100 recommended level and also methionine level was significantly affect total fcr, so the %110 methionine level had better FCR than other levels . Experimental treatments had no significant effect on carcass constitutes and Blood metabolite, in female quails. Villus area, villus height to crypt depth ratio, and villus height was affected significantly by interaction of CP and Met (P<0.05). In conclusion, NRC 1994 recommended CP diet with 110 % Met level can improve quail production traits , | ||
| کلیدواژهها [English] | ||
| Female quail, Blood metabolite, Performance, Methionine, Histology | ||
| مراجع | ||
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