خصوصیات تجزیه شکمبه‌ای در محل سیلو‌های ذرت، سورگوم و هبریدهای سورگوم-سودان گراس تحت تأثیر مرحله بلوغ

Subject Areas : Camel

ن. کیلیکالپ ¹ , اچ. هیزلی ² , م. سومرلی ³ , ن. آوسی ⁴

1 - Department of Animal Science, Faculty of Agriculture, Gaziosmanpaşa University, Tokat, Turkey
2 - Agricultural Research Institute of East Mediterranean, Adana, Turkey
3 - GAP International Agricultural Research and Training Center, Diyarbakır, Turkey
4 - Department of Crop Science, Faculty of Agricultural Science and Technologies, Ömer Halisdemir University, Nigde, Turkey

Received: 2017-07-10 Accepted : 2017-09-15 Published : 2018-06-01

Keywords: سورگوم, مرحله برداشت, انرژی متابولیسمی, خصوصیات تجزیه شکمبه‌ای, سورگوم &times, سودان گراس,

Abstract :

این تحقیق با هدف مطالعه خصوصیات تجزیه در محل ذرت، سورگوم و هبریدهای سورگوم-سودان گراس صورت گرفت. گیاه کامل ذرت (TTM-815 و DK-711)، سورگوم (SS-506 و FS-5) و هبریدهای سورگوم × سودان گراس (P-988 و Grazer N2) تحت شرایط نیمه خشک پرورش داده شده و در مراحل مختلف بلوغ (اواسط گل­دهی (MF)، خط شیری (ML) و خمیر سفت (HD)) برداشت شده و سیلو گردیدند. سه تکرار از نمونه­های سیلو در 0، 12، 24، 36، 48، 72 و 96 ساعت در سه تلیسه هلشتاین فیستوله شده، انکوباسیون گردیدند. اثر گونه بر مقادیر خصوصیات تجزیه شکمبه­ای (a، b، (a+b)، c)، تجزیه­پذیری ماده خشک موثر (EDMD) و انرژی قابل متابولیسم (ME) (بر حسب مگاژول در هر کیلوگرم سیلو­های ذرت (M)، سورگوم (S) و هبریدهای سورگوم × سودان گراس (SSH)) معنی­دار بودند. تجزیه­پذیری ماده خشک مؤثر (EDMD2) ماده خشک برای انواع مختلف سیلاژ به ترتیب 65/286، 37/259، 0/265 گرم در هر کیلوگرم به دست آمد (0001/0>P). الیاف محلول در شوینده اسیدی (ADF) بهترین پیش­بینی­کننده برای تجزیه­پذیری ماده خشک مؤثر سیلوهای هبریدهای سورگوم × سودان گراس بود (05/0>P و 448/0=R).

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