In vitro Determination of Nutritional Value of Compost and Stem of the White Button Mushroom

محورهای موضوعی : Camel

ب. بزیون ¹ (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)
ا. تقی زاده ² (گروه علوم دامی - دانشکده کشاورزی - دانشگاه تبریز)
پایا پایا ³ (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)
ع. حسین خانی ⁴ (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)

تاریخ دریافت : 1398/11/16 تاریخ پذیرش : 1398/12/24 تاریخ انتشار : 1399/03/12

کلید واژه: chemical composition, gas production, compost, degradability, mushroom stem,

چکیده مقاله :

The aim of this study was to determine the chemical composition of stem and compost of the button mushroom to estimate metabolizable energy (ME) and net energy of lactation (NEl) using gas production method and to determine the amount of dry matter disappearance (DMD) using in vitro technique. This study was conducted in a completely randomized design with three treatments of mushroom stem, alfalfa, and compost. The data were analyzed by SAS software. Dry matter (DM), crude protein (CP), crude ash (CA), ether extract (EE), acid detergent fiber (ADF) and neutral detergent fiber (NDF) content of the stem, compost and alfalfa were: 10.3, 16.8, 8.6, 3.48, 31.5, and 13.4; 42.4, 12.8, 42.41, 3.14, 21.5, and 16.2; 96.4, 12.6, 9, 2.2, 38.6, and 32.3, respectively. The highest and the lowest amounts of gas production after 120 h of incubation were obtained for mushroom stem and compost, respectively. Gas production potential (a+b) of mushroom stem, alfalfa, and compost were obtained as 223.01, 200.0, and 114.53 mL gas/g DM, respectively. Gas production rates for mushroom stem, compost, and alfalfa were 0.07, 0.03, and 0.08/h, respectively. The highest values of ME and NEl were received for mushroom stem (8.01 and 4.82 MJ/kg DM, respectively). DMD was higher and lower in the mushroom stem and compost, respectively. The results demonstrated that mushroom stem had a higher nutritive value compared with the other experiment feeds and can be used in ruminant ration formulation.

چکیده انگلیسی:

تحقیق حاضر جهت تعیین ترکیبات شیمیایی، انرژی قابل متابولیسم و انرژی خالص شیردهی با استفاده از روش تولید گاز و ناپدید شدن شکمبه ‏ای ماده خشک با روش آزمایشگاهی برای کمپوست و ساقه قارچ سفید دکمه‏ ای انجام شد. تحقیق حاضر در قالب طرح کاملاً تصادفی و با سه تیمار ساقه قارچ، کمپوست قارچ و علوفه یونجه انجام شد. داده‏ های به ­دست آمده توسط نرم ­افزار آماری SAS آنالیز گردید. ماده خشک، پروتئین خام، خاکستر خام، عصاره اتری، الیاف نامحلول در شوینده اسیدی و الیاف نامحلول در شوینده خنثی برای ساقه قارچ، کمپوست و یونجه به ‏ترتیب 10.3، 16.8، 8.6، 3.48، 31.5 و 13.4؛ 42.4، 12.8، 42.41، 3.14، 21.5 و 16.2؛ 96.4، 12.2، 9، 2.2، 36.3 و 32.3 بود. بیشترین و کمترین تولید گاز بعد از 120 ساعت انکوباسیون به ترتیب برای ساقه قارچ و کمپوست بود. پتانسیل تولید گاز برای ساقه قارچ، یونجه و کمپوست به ترتیب 223.01، 200.00 و 114.53 میلی‏لیتر گاز به ازای هر گرم ماده خشک بود. نرخ تولید گاز برای ساقه قارچ، کمپوست و یونجه به ترتیب 07/0، 03/0 و 08/0 در ساعت بود. بیشترین میزان انرژی قابل متابولیسم و انرژی خالص شیردهی برای ساقه قارچ به ترتیب با 8.01 و 4.82 مگاژول در کیلوگرم ماده خشک بود. بیشترین و کمترین میزان ناپدیدشدن شکمبه ماده خشک به ‏ترتیب برای ساقه قارچ و کمپوست بود. در کل نتایج بیانگر بالا بودن ارزش غذایی ساقه قارچ نسبت به سایر مواد خوراکی مورد آزمایش بود که می ‏تواند در تغذیه نشخوارکنندگان مورد استفاده قرار­گیرد.

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