Madagascar High Lands Dry Season Forages： Lofium multiflorum （Italian Ray Grass） and Avena sativa （Oat）
Madagascar High Lands Dry Season Forages： Lofium multiflorum （Italian Ray Grass） and Avena sativa （Oat）作者机构：Department of Livestock Sehool of Agronomics Sciences University of Antananarivo Antananarivo 175 Madagascar
出 版 物：《Journal of Environmental Science and Engineering(B)》 (环境科学与工程（B）)
年 卷 期：2014年第3卷第6期
页 面：316-324页
学科分类：07[理学] 070601[理学-气象学] 09[农学] 0706[理学-大气科学] 0901[农学-作物学]
主 题：Counter season forages productivity feeding values Lolium multiflorum Avena sativa Madagascar.
摘 要：Italian ray grass and oat are two grass species characterized by their ability to adjust tropical climate conditions. This study proposed to assess forage productivities to allow an appropriate mowing period determination in their use as dairy female feed in Madagascar. A test on small plots has been set up in the southern part of the capital city Antananarivo during one dry period （4 months）. Live observations followed by laboratory proximate analyses have been performed for forage productivity and feeding value determination. Cultivated on tanety （hill）, irrigated in counter season, results show that： （I） oat higher height （H = 96.7 cm） than Italian ray grass （H= 69.4 cm） at 99 days of age; （2） similar biomass productivity; （3） dry matter yields significantly different （p = 0.05）; （4） certain similarity between dry matter yields and FMU （fodder milk unit） score evolution; （5） leafy stage of Italian ray grasses at 99 days of age; （6） mid-flowering stage for oats during the same period. Cell wall content, crude fiber and dry matter contents increased with age （p = 0.05）. Crude proteins and minerals evolved in opposite directions. Gross energy content did not present precise variation with age. This study allowed that for an acceptable quantitative and qualitative production during dry seasons, good mowing period for Italian ray grass could start at 76 days age, while oat could start being harvested at 68 days.
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