Effect of graded levels of urea treatment on nutrient composition and in-vitro digestibility of Calliandra calothyrsus (Meissner)
- سال انتشار: 1397
- محل انتشار: مجله علمی علوم دامی، دوره: 7، شماره: 1
- کد COI اختصاصی: JR_SJAS-7-1_003
- زبان مقاله: انگلیسی
- تعداد مشاهده: 44
نویسندگان
Department of Biological Sciences, Bindura University of Science Education, P. Bag ۱۰۲۰, Bindura, Zimbabwe
Department of Animal Production and Technology, School of Agricultural Sciences and Technology Chinhoyi University of Technology, P. Bag ۷۷۲۴, Chinhoyi, Zimbabwe
Department of Agricultural Economics, Education and Extension, Bindura University of Science Education, P. Bag ۱۰۲۰, Bindura, Zimbabwe
چکیده
Calliandra calothyrsus (Meissner) is a multipurpose forage tree that can improve the nutrition of livestock due to its high crude protein content. However, the shrub has low digestibility. The aim of this study was to determine the effect of graded levels of urea treatment on nutrient composition and in-vitro digestibility of C. calothyrsus leaves. Mature leaves of C. calothyrsus were hand harvested in the first week of August ۲۰۱۶, after the flowering stage. They were air dried under the shed for five days in order to maintain the green colour of the leaves. They were then treated with ۰% (control), ۳%, ۵% and ۷% urea solutions for four weeks under anaerobic conditions. Some of the air dried samples were ground and analysed for nutrient composition, crude protein (CP), acid detergent fibre (ADF), neutral detergent fibre (NDF), dry matter (DM) and ash. There was an increase in CP following increase in the level of urea treatment from ۲۱۰ to ۳۲۰g/kg DM. A decrease was noted in fibre content with increasing level of urea treatment. Digestibility trial was conducted using the Tilley and Terry two stage method. In-vitro dry matter digestibility increased significantly at (p< ۰.۰۵) with increase in urea treatment noted from ۴۳۹.۷-۵۳۰.۷g/kg DM. Theresults show the effectiveness of urea treatment in increasing the crude protein and in-vitro digestibility of C. calothyrsus.Calliandra calothyrsus (Meissner) is a multipurpose forage tree that can improve the nutrition of livestock due to its high crude protein content. However, the shrub has low digestibility. The aim of this study was to determine the effect of graded levels of urea treatment on nutrient composition and in-vitro digestibility of C. calothyrsus leaves. Mature leaves of C. calothyrsus were hand harvested in the first week of August ۲۰۱۶, after the flowering stage. They were air dried under the shed for five days in order to maintain the green colour of the leaves. They were then treated with ۰% (control), ۳%, ۵% and ۷% urea solutions for four weeks under anaerobic conditions. Some of the air dried samples were ground and analysed for nutrient composition, crude protein (CP), acid detergent fibre (ADF), neutral detergent fibre (NDF), dry matter (DM) and ash. There was an increase in CP following increase in the level of urea treatment from ۲۱۰ to ۳۲۰g/kg DM. A decrease was noted in fibre content with increasing level of urea treatment. Digestibility trial was conducted using the Tilley and Terry two stage method. In-vitro dry matter digestibility increased significantly at (p< ۰.۰۵) with increase in urea treatment noted from ۴۳۹.۷-۵۳۰.۷g/kg DM. Theresults show the effectiveness of urea treatment in increasing the crude protein and in-vitro digestibility of C. calothyrsus.کلیدواژه ها
Calliandra calothyrsus, Urea, In-vitro digestibility, Crude proteinاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.