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خصوصیات تخمیر و ارزش غذایی خردل علوفه ای سیلو شده با و بدون ملاس | ||
| علوم دامی | ||
| مقاله 6، دوره 29، شماره 112، آذر 1395، صفحه 57-64 اصل مقاله (1.65 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/asj.2016.107420 | ||
| نویسندگان | ||
| عبداله کاویان* ؛ محمد پاسندی | ||
| عضو هیئت علمی مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان گلستان | ||
| چکیده | ||
| خردل علوفه ای با نام علمی Brassica juncea(L) گیاهی است یک ساله که از یک تا 2 متر رشد میکند. به منظور بررسی اثر سطوح مختلف ملاس بر کیفیت و ارزش غذایی گیاه خردل علوفه ای از سه سطح صفر، 3 و 6 درصد ملاس در قالب طرح کاملاً تصادفی با 5 تکرار استفاده شد. گیاه خردل علوفه ای خرد شده در قطعات 2 سانتیمتری در سطل های 10 کیلویی فشرده و ذخیره گردید. بعد از 45 روز ویژگی ظاهری ( رنگ، بو و ساختمان سیلاژ) ، ترکیبات شیمیایی (ماده خشک، پروتیین خام، الیاف خام، دیواره سلولی بدون همی سلولزو خاکستر خام) و نیز قابلیت هضم آزمایشگاهی مواد سیلویی اندازه گیری شد. نتایج نشان داد که کیفیت سیلاژ بر اساس Flieg Point در هر سه تیمار در حد قابل قبولی می باشد. افزودن ملاس اثر معنی داری روی pH سیلاژ نداشت. با افزودن ملاس مقدار ازت امونیاکی سیلاژ کاهش و مقدارکربوهیدرات های محلول سیلاژ افزایش یافت(05/0>P). اثر افزودن ملاس روی مقدار ماده خشک، پروتئین خام، الیاف خام، ماده آلی و دیواره سلولی بدون همی سلولز(ADF) معنی دار نبود. قابلیت هضم ماده خشک (DMD)، ماده آلی(OMD) و ماده آلی در ماده خشک(DOMD) با افزودن ملاس افزایش یافت(05/0>P). بیشترین قابلیت هضم ماده خشک(7/64) و ماده آلی(11/60) در تیمار 3 مشاهده شد. به طور کلی نتایج این آزمایش نشان می دهد که گیاه خردل علوفه ای را می توان بدون ماده افزودنی ملاس سیلو نمود، اما باافزودن ملاس در سطح 6 درصد، کیفیت و ارزش غذایی سیلاژ بهبود می یابد. | ||
| کلیدواژه‌ها | ||
| خردل علوفه ای؛ ارزش غذایی؛ کیفیت تخمیر؛ قابلیت هضم | ||
| عنوان مقاله [English] | ||
| fermentation characteristics and nutritive value of mustard fodder( Brassica juncea) ensiled with or without molasses | ||
| نویسندگان [English] | ||
| abdollah kavian؛ Mohammad Pasandi | ||
| Member of scientific board of agricultural and natural researsh and education center of golestan province | ||
| چکیده [English] | ||
| Brassica juncea (L) belongs to the Cruciferae plant family commonly known as the mustard family. It is grown to a height of one to two meters. In order to investigate the effect of molasses on the fermentation quality and nutritive value of fodder mustard (Brassica Mustard), the three levels of molasses in a completely randomized design with five replicates were used. For this purpose mustard fodder was obtained at dent stage, chopped with an average particle length of 2 Cm and were preserved in 10Kg plastic boxes by mixing molasses at 0 , 3 and 6% of forage dry matter with five replicates. Silos were kept at room temperature and opened at 45 days for determination of pH , apparent specificity of silage( smell, structure and color), chemical composition(DM, CP, CF, NDF, ADF, ash , WSC and In Vitro digestibility. All of the silages had desirable degree of quality based on Flieg Point . NH3-N value concentration of silage decreased and WSC increased with increasing level of molasses addition (P>0.05). The effect of molasses on DM, CP, CF, OM and ADF contents was non- significant. The OMD(organic matter digestibility), DMD(dry matter digestibility) and DOMD( Digestibility of Organic Matter in the Dry) were increased by ensiling with molasses. The highest DMD(64.7%) and OMD(60.01%) were observed in treatment T3. In conclusion it was shown that mustard fodder can be effectively ensieled without molasses. However , additional 6% molasses to fodder of Mustard resulted in improved fermentation quality and nutritive value of silage. | ||
| کلیدواژه‌ها [English] | ||
| Mustard fodder, nutritive value, Fermentation Quality, Digestibility | ||
| مراجع | ||
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