K.J. Soder PAS , B.J. Heins , H. Chester-Jones PAS , A.N. Hafla PAS , M.D. Rubano
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Barley and oats had the greatest (<em>P</em> < 0.05) fresh weight in study 1, oats had the greatest (<em>P</em> < 0.05) DM yield, and barley had the least (<em>P</em> < 0.05) mold score. In study 2, milk production, milk fat, BW, and BCS were not affected by supplemental fodder. Cows fed fodder had lesser (<em>P</em> < 0.05) milk protein production but greater (<em>P</em><span> < 0.05) milk urea N. Income over feed costs favored not feeding fodder except when cracked corn prices increased by 50% over those used in the study. In study 3, labor, cost of production, lack of milk response, barley supply, and mold issues resulted in 2 of the farms discontinuing fodder. Fodder increased milk production slightly on the third farm, probably due to decreased forage quality. Fodder may provide some benefits on small-scale operations, farms with high land values where tillable acreage can produce high-value crops, or for producers experiencing severe, extended drought. Additionally, farms that have an excess of labor may benefit with a sprouted fodder system. However, in many situations, growing high-quality forage would be more economical.</span></p></div>","PeriodicalId":22841,"journal":{"name":"The Professional Animal Scientist","volume":"34 1","pages":"Pages 75-83"},"PeriodicalIF":0.0000,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15232/pas.2017-01676","citationCount":"7","resultStr":"{\"title\":\"Evaluation of fodder production systems for organic dairy farms\",\"authors\":\"K.J. Soder PAS , B.J. Heins , H. Chester-Jones PAS , A.N. Hafla PAS , M.D. Rubano\",\"doi\":\"10.15232/pas.2017-01676\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study evaluated the feasibility and challenges of implementing sprouted fodder on organic dairy farms. 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Income over feed costs favored not feeding fodder except when cracked corn prices increased by 50% over those used in the study. In study 3, labor, cost of production, lack of milk response, barley supply, and mold issues resulted in 2 of the farms discontinuing fodder. Fodder increased milk production slightly on the third farm, probably due to decreased forage quality. Fodder may provide some benefits on small-scale operations, farms with high land values where tillable acreage can produce high-value crops, or for producers experiencing severe, extended drought. Additionally, farms that have an excess of labor may benefit with a sprouted fodder system. 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引用次数: 7
摘要
本研究评估了在有机奶牛场实施发芽饲料的可行性和挑战。在研究1中,5种谷物(大麦、燕麦、小麦、黑麦和小黑麦)发芽7 d,分析产量和营养成分。在试验2中,泌乳奶牛在冬季饲喂TMR,在此基础上不添加饲料或添加1.4 kg (DM)的大麦芽饲料。在研究3中,对3家饲喂发芽大麦饲料的有机奶牛场进行了为期12个月的月度监测,收集了饲料营养分析、牛奶产量和成分以及管理方面的数据。研究1和研究2的数据作为单独的重复完整块设计进行分析,研究3是一个案例研究。大麦和燕麦(P <在试验1中,燕麦鲜重最高(P <0.05) DM产量,大麦最低(P <0.05)模具评分。在试验2中,添加饲料对产奶量、乳脂、体重和体重均无影响。饲喂饲料的奶牛P <0.05)奶蛋白产量,但高于(P <所得比饲料成本更倾向于不饲喂饲料,除非裂谷价格比研究中使用的玉米价格提高50%。在研究3中,劳动力、生产成本、缺乏牛奶反应、大麦供应和霉菌问题导致2个农场停止饲料生产。第三个农场的饲料产量略有增加,可能是由于饲料质量下降。饲料可为小规模经营、可耕作面积可生产高价值作物的高土地价值农场或遭受严重、长期干旱的生产者带来一些好处。此外,劳动力过剩的农场可能会受益于发芽饲料系统。然而,在许多情况下,种植优质饲料将更加经济。
Evaluation of fodder production systems for organic dairy farms
This study evaluated the feasibility and challenges of implementing sprouted fodder on organic dairy farms. In study 1, 5 grains (barley, oats, wheat, rye, and triticale) were sprouted for 7 d and analyzed for yield and nutritional content. In study 2, lactating cows were fed a TMR during winter and supplemented with either no fodder or 1.4 kg (DM) of sprouted barley fodder. In study 3, 3 organic dairies that fed sprouted barley fodder were monitored monthly for 12 mo to collect data on feed nutritional analysis, milk production and composition, and management. Data from studies 1 and 2 were analyzed as separate replicated complete block designs, and study 3 was a case study. Barley and oats had the greatest (P < 0.05) fresh weight in study 1, oats had the greatest (P < 0.05) DM yield, and barley had the least (P < 0.05) mold score. In study 2, milk production, milk fat, BW, and BCS were not affected by supplemental fodder. Cows fed fodder had lesser (P < 0.05) milk protein production but greater (P < 0.05) milk urea N. Income over feed costs favored not feeding fodder except when cracked corn prices increased by 50% over those used in the study. In study 3, labor, cost of production, lack of milk response, barley supply, and mold issues resulted in 2 of the farms discontinuing fodder. Fodder increased milk production slightly on the third farm, probably due to decreased forage quality. Fodder may provide some benefits on small-scale operations, farms with high land values where tillable acreage can produce high-value crops, or for producers experiencing severe, extended drought. Additionally, farms that have an excess of labor may benefit with a sprouted fodder system. However, in many situations, growing high-quality forage would be more economical.