اثر مکمل فیتاز بر انرژی قابل سوخت و ساز و قابلیت هضم مواد مغذی سورگوم، ذرت و گندم
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Abstract:
In a completely randomized design with 3×5 factorial arrangement, the metabolizable energy and nutrients digestibility of three varieties of sorghum grains (low, medium and high tannin) with and without supplemental phytase were determined and was compared with corn and wheat. Three varieties of sorghum were selected from the 36 varieties according to their tannin content and were grown togther with corn and wheat under the same environmental conditions. Supplemental phytase was added at three levels (0.0, 500 and 1000 FTU/kg) to each grain. The metabolizable energy (ME) and nutrients digestibilities were determined by the mature male Leghorn with the method of Sibbald. The results indicated that different grains had different ME, apparent and true digestibilities regarding dry matter, nitrogen and phosphorus. Medium tannin sorghum had the highest apparent and true metabolizable (AME and TME) energy, whereas the high tannin sorghum showed the lowest AME and TME. The apparent and true dry matter digestibilities of corn was more than the other grains (P<0.001). Medium tannin sorghum had the highest apparent and true nitrogen digestibilies than the other two varieties (P<0.001). Difference between tested grains regarding apparent and true phosphorus digestibilities were not significant. All measured criteria were the lowest for the high tannin sorghum. Adding 500 FTU/Kg phytase caused an improvement (P<0.001) in AME, apparent and true dry matter digestibilities and true nitrogen digestibility. Although added phytase improved apparent and true phosphorus digestibilities and true nitrogen digestibility, but the differences were not significant. The differences between 500 and 1000 units phytase was not significant and the results indicated that 500 FTU/Kg phytase was sufficient to improve the nutritional value of grains under study.
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اثر سطح استفاده از مولتی آنزیم های مختلف تجاری بر انرژی قابل سوخت و ساز و قابلیت هضم مواد مغذی گندم
این آزمایش به منظور بررسی اثر چهار نوع مولتیآنزیم تجاری و سطوح مختلف آنها بر انرژی قابل سوختوساز ظاهری تصحیح شده برای نیتروژن (AMEn) و قابلیت هضم چربی خام، پروتئین خام، ماده خشک و ماده آلی گندم با روش جمعآوری کل فضولات در جوجههای گوشتی انجام گرفت. تعداد 135 قطعه جوجه خروس گوشتی سویه راس 308 به 45 قفس متابولیکی شامل نه تیمار، پنج تکرار و سه قطعه جوجه در هر تکرار اختصاص یافتند. جیرههای آزما...
full textترکیب مواد مغذی و انرژی قابل سوخت و ساز تعدادی از ارقام سورگوم دانه ای و مقایسه آن با دو رقم ذرت
Sorghum grain is an important cereal to be cultivated in tropical and sub-tropical areas. The extension of its cultivation and application in animal and poultry diets may reduce the need for imported corn. In order to determine the nutritive value of sorghum, 36 sorghum grain (SG) varieties and one type of corn were grown at the same location. The grains were analyzed for their nutrient composi...
full textترکیب مواد مغذی و انرژی قابل سوخت و ساز تعدادی از ارقام سورگوم دانه ای و مقایسه آن با دو رقم ذرت
Sorghum grain is an important cereal to be cultivated in tropical and sub-tropical areas. The extension of its cultivation and application in animal and poultry diets may reduce the need for imported corn. In order to determine the nutritive value of sorghum, 36 sorghum grain (SG) varieties and one type of corn were grown at the same location. The grains were analyzed for their nutrient composi...
full textترکیب مواد مغذی و انرژی قابل سوخت و ساز تعدادی از ارقام سورگوم دانه ای و مقایسه آن با دو رقم ذرت
سورگوم دانه ای یکی از غلات مهمی است که در نقاط گرم و خشک به طور وسیع کشت می شود. توسعه کشت و کاربرد آن در تغذیه دام و طیور در ایران می تواند از حجم واردات ذرت کم کند. به منظور تعیین ارزش غذایی سورگوم، 36 رقم سورگوم دانه ای و یک رقم ذرت تحت شرایط یکسان کشت شدند. نتایج حاصل از تجزیه های شیمیایی نشان داد که میانگین مقدار خاکستر، پروتئین خام، دیوار سلولی بدون همی سلولز و فسفر در ارقام سورگوم به ترت...
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Journal title
volume 9 issue 4
pages 191- 200
publication date 2006-01
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