摘要
研究旨在为青海省秸秆资源的合理利用提供参考,对当地主要农作物秸秆资源饲料化利用潜力进行系统分析。结果显示:2015—2021年青海省主要农作物可收集秸秆量166.08万~172.30万t,粗蛋白(CP)产出6.15万~6.83万t,代谢能(ME)产出948.73~984.16 GJ。可利用秸秆数量载畜量342.12万~354.93万羊单位,可消化粗蛋白质(DCP)载畜量98.98万~109.87万羊单位,ME载畜量310.18万~321.76万羊单位,间接节粮172.82万~179.32万t,秸秆产肉潜力达8.73万~9.06万t。2020年青海省秸秆节粮数量相当于当年增加小麦种植面积43.55万hm^(2),秸秆养畜产肉量占当年牛羊肉总产量的26.79%。研究表明,青海省秸秆资源具有饲料化利用潜力,可为青海绿色有机农畜产品输出地建设提供物质资源。
The study was to provide reference for the rational utilization of straw resources in Qinghai Province,and systematically analyzed the feed utilization potential of local main crop straw resources.The results showed that from^(2)015 to 2021,the main crops in Qinghai Province could collect 1660800~1723000 t of straw,produced 61500~68300 t of crude protein(CP)and 948.73~984.16 GJ of metabolic energy(ME).The livestock carrying capacity of available straw was 3421200~3049300 sheep units,the livestock carrying capacity of digestible crude protein(DCP)was 989800~1098700 sheep units,the livestock carrying capacity of ME was 3101800~3217600 sheep units,the indirect food saving was 1728200~1793200 t,and the potential of straw meat production was 87300~90600 t.In 2020,the amount of grain saved by straw in Qinghai Province was equivalent to 435500 hm^(2)of wheat planting area increased that year,the meat output of livestock raised with straw accounted for 26.79%of total output of beef and mutton in that year.The study indicates that the straw resources in Qinghai Province have the potential of feed utilization,which can provide material resource for the construction of Qinghai green organic agricultural and livestock products export place.
作者
王廷艳
罗增海
黄伟华
张铭
黄世斌
王轲
侯留飞
郝力壮
WANG Ting-yan;LUO Zeng-hai;HUANG Wei-hua;ZHANG Ming;HUANG Shi-bin;WANG Ke;HOU Liu-fei;HAO Li-zhuang
出处
《饲料研究》
CAS
北大核心
2022年第19期122-126,共5页
Feed Research
基金
青海省“昆仑英才·高端创新创业人才”拔尖人才项目
青海省高原放牧家畜动物营养与饲料科学重点实验室(项目编号:2022-ZJ-Y17)
青海省“昆仑英才·乡村振兴人才”项目。
关键词
青海省
农作物秸秆
资源
饲料化利用
Qinghai Province
crop straw
resources
forage utilization
