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Field curing methods and storage duration affect the quality of hay from six rangeland grass species in Kenya

Ecological Processes 2016年第1期5卷 32-37页

作者： O.K.Koech r.n.kinuthia G.n.Karuku S.M.Mureithi r.Wanjogu Department of Land resource Management and Agricultural Technology Range Management SectionUniversity of NairobiP.O.Box 209053-00625NairobiKenya national Irrigation Board Mwea Irrigation Agricultural Development(MIAD)CentreP.O.Box 21010303 WanguruKenya

Introduction:rangelands are important source of pasture for livestock in Kenya since time immemorial to pastoral ***,seasonality on forage availability has been a big challenge in meeting animals’feed *** demands harvest and storage of pastures for use during dry *** making has been done to bridge this forage deficit ***,hay quality in the rangelands is affected by curing methods,phonological stage at harvest,and the storage *** therefore evaluated the effect of field curing and storage duration on the quality(Crude Protein(CP))of hay from six rangeland grasses in ***:The grasses evaluated are Chloris roxburghiana,Eragrostis superba,Enteropogon macrostachyus,Cenchrus ciliaris,Chloris gayana,and Sorghum *** grasses are the common species in the rangelands of Kenya and have been promoted in the past for hay making and reseeding *** grasses were harvested at the mature flowering stage(12 weeks phenological stage),which is a period that provides high biomass without much effect on quality as practiced in the study *** grasses were then cured in the field for 1,2,and 3 days before baling and stored indoors for 12,24,and 36 *** were taken for CP content determination at the three periods following Macro-Kjeldahl ***:There was significant decline(p≤0.05)in crude protein content in all the grass species with storage *** period did not affect the CP content for all the species at a given storage period;however,3 days curing changed the hay color from green to brownish which reduces palatability and consequently reduced feed *** period of over 12 weeks adversely lowered CP to less than 6% for all the species which is the required minimum level for animal under production and *** had significantly higher decline in CP after 24 weeks storage compared to the other ***:Therefore,hay from the six grass spec

关键词： Grass quality range grasses Semi-arid rangelands Grass storage Grass curing Kenya

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