کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8492076 | 1552414 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Voluntary intake, apparent digestibility and prediction of methane production by rumen stoichiometry in sheep fed pods of tropical legumes
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
GHGDOMDNDFADFVFAVolatile fatty acids - اسیدهای چرب فرارacid detergent fiber - الیاف پاک کننده اسیدMetabolizable energy - انرژی متابولیزه شدهstandard error of the mean - خطای استاندارد میانگینSaponins - ساپونینneutral detergent fiber - فیبر مواد شوینده خنثیorganic matter - ماده آلیdry matter - ماده خشکMethane - متان SEM - مدل معادلات ساختاری / میکروسکوپ الکترونی روبشیbody weight - وزن بدنGreenhouse gases - گازهای گلخانه ایSheep - گوسفند
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Foliages and pods of tropical legumes are alternative feeds for sheep which may contribute to improvement of their productive performance, and secondary metabolites such as tannins and saponins in the pods of Acacia pennatula and Enterolobium cyclocarpum may contribute to reducing methane production in the rumen. Rumen stoichiometry is a method by which methane production can be estimated. Our aim was to determine feed intake, apparent digestibility and methane production in hair sheep fed ground pods of two tropical legumes. Twelve male Pelibuey hair sheep were used in a completely randomized design with three treatments being: (1) control [commercial concentrate], (2) A. pennatula: substitution of 0.45 of ration dry matter (DM) with ground pods of A. pennatula and (3) E. cyclocarpum: substitution of 0.45 of ration DM with ground pods of E. cyclocarpum. There were no differences in DM intake between rations containing pods of legumes (1155 and 1122Â g/d for A. pennatula and E. cyclocarpum, respectively), although there were differences (P<0.05) in DM intake between A. pennatula and control (933Â g/d). Digestible organic matter intake did not differ among treatments, being 698, 737 and 730Â g/d for control, A. pennatula and E. cyclocarpum, respectively. Apparent DM digestibility differed (P<0.05), with the control having the highest digestibility (0.84) relative to A. pennatula and E. cyclocarpum. There was no difference (P>0.05) in conversion efficiency of hexose to volatile fatty acids in the rumen with the control treatment which showed the highest efficiency (0.79), followed by E. cyclocarpum and A. pennatula (0.76). Energy loss as methane (kJ/mol) was not different (P>0.05) among treatments, with the control showing the lowest loss (195.7), followed by E. cyclocarpum (219.2) and A. pennatula (236.6). Further research is required to evaluate effects of the tannins and saponins in the pods of tropical legumes on rumen methanogenesis under practical sheep farming conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Feed Science and Technology - Volume 176, Issues 1â4, 21 September 2012, Pages 117-122
Journal: Animal Feed Science and Technology - Volume 176, Issues 1â4, 21 September 2012, Pages 117-122
نویسندگان
E.G. Briceño-Poot, A. Ruiz-González, A.J. Chay-Canul, A.J. Ayala-Burgos, C.F. Aguilar-Pérez, F.J. Solorio-Sánchez, J.C. Ku-Vera,