养殖与饲料2024年第4期饲喂青贮全株玉米对育肥牛生长性能及经济效益的影响王燕，许译心，张悦，张元宝，张琰*兰州现代职业学院农林科技学院，兰州730300摘要［目的］研究全株玉米青贮饲喂模式，为甘肃省永登县白牦牛育肥技术的提升和农牧业可持续发展提供实际指导。［方法］选择2组白牦牛，所有牛只在试验开始时均为1.5岁，平均体质量约为400kg，每组15头，以模拟当地农户的典型养殖规模，试验组采用全株玉米青贮作为主要饲料，而对照组则继续使用传统草料，记录2组牛体质量增长、饲料转化率和健康指标。［结果］使用全株玉米青贮的饲养模式显著提高了饲料利用率和肉牛的增质量效率，相较于传统饲喂方法，增质量提升了15%～20%，日均饲料成本降低了5%～8%，潜在收益每月增加了12%～20%，且试验组牛只表现出更好的健康状况。［结论］以全株玉米青贮饲喂模式为核心，优化永登县白牦牛育肥技术，可降低养殖成本、推动当地畜牧业向现代化、高效化转型。关键词白牦牛；全株玉米青贮；育肥技术；示范推广Effectsoffeedingwhole-plantcornsilageonthegrowthperforEffectsoffeedingwhole-plantcornsilageonthegrowthperfor‐manceandeconomicbenefitsoffatteningcattlemanceandeconomicbenefitsoffatteningcattleWANGYan,XuYixin,ZHANGYue,ZHANGYuanbao,ZHANGYan*SchoolofAgricultureandForestryScienceandTechnology,LanzhouModernVocationalCollege,Lanzhou730300,ChinaAbstractAbstract[Objectives]Thefeedingmodeofwhole-plantcornsilagewasstudiedtoprovidepracti‐calguidancefortheimprovementoffatteningtechniquesforwhiteyaksandthesustainabledevelop‐mentofagricultureandanimalhusbandryinYongdengCounty.[Methods]2groupsofwhiteyakswereselectedtosimulatethetypicalfarmingscaleoflocalfarmers.15yaksaged1.5yearsoldwithanav‐eragebodyweightofabout400kgatthebeginningoftheexperimentwereineachgroup.Thewholeplant-cornsilagewasusedasthemainfeedintheexperimentalgroup,whilethetraditionalfor‐agewasusedinthecontrolgroup.Thegrowthofbodymass,theconversionrateoffeed,andhealthindexesinthetwogroupsofcattlewererecorded.[Results]Thefeedingmodeofusingwhole-plantcornsilagesignificantlyimprovedtheutilizationefficiencyoffeedandtheweightgainefficiencyofbeefcattle.Comparedtotraditionalfeedingmodes,theweightgaini...
