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美国中北部奶牛场泽西牛与荷斯坦牛品种盈利能力分析。

Analysis of Jersey versus Holstein breed profitability on north central US dairies.

作者信息

Olthof Lynn A, Domecq Joseph J, Bradford Barry J

机构信息

Department of Animal Science, Michigan State University, East Lansing 48824.

出版信息

JDS Commun. 2023 Jul 21;4(5):344-348. doi: 10.3168/jdsc.2023-0371. eCollection 2023 Sep.

Abstract

With over 9 million cows in the United States, Holstein is the dominant breed in the US dairy population; however, the US Jersey population is growing. The objective of this study was to determine the profitability of Holstein and Jersey cows managed similarly on the same farms. Holstein and Jersey economic performance was compared within 3 north central US dairies, each milking more than 500 cows. The herds' average distribution was 21% Jersey (27 ± 0.67 kg/d milk, 4.92% ± 0.24 fat, 3.72% ± 0.03 protein) and 79% Holstein (37 ± 1.98 kg/d milk, 3.85% ± 0.21 fat, 3.17% ± 0.17 protein). A comparative budget approach was used to assess economic factors that differed between the breeds on a per cow annual basis, based on the assumption that an existing farm would be constrained by stalls and parlor to an equal number of Jersey and Holstein cows. Data from 2020 were gathered from farm management software, on-farm evaluations, and producer interviews. Sensitivity analysis was performed to determine which conditions would lead to different conclusions. Factors considered in the analysis included milk and component production, milk bonuses, ration prices, and dry matter (DM) intake. In a 2021 price scenario, Holstein cows ranged from $345 to $601 more profitable than Jersey cows on a per cow annual basis. Although Jersey cows had an advantage in component concentration, Holstein cows produced 13 ± 4.7% more fat and 22 ± 6.6% more protein annually due to greater milk yield. This accounted for most of the profitability advantage for Holsteins; 78% of the revenue advantage for Holstein cows came from increased component production. Few health and reproductive differences were found. The sensitivity analysis revealed, if all other factors remained the same, Jersey profitability would equal that of Holstein if any of the following changes occurred (assuming no change in Holstein metrics): mean Jersey milk production increased to 31 kg/d; milk price adjustments decreased from -$0.008 to -$0.11 per kg fluid milk; lactating cow ration price increased from $0.27 per kg DM to $0.53 per kg DM; or Jersey DM intake decreased from 20 to 15 kg/d. The study did not consider crossbred profitability or new infrastructure investments. In conclusion, Holstein cows were more profitable than Jersey cows on these 3 north central US dairies.

摘要

美国有超过900万头奶牛,荷斯坦奶牛是美国奶牛种群中的主导品种;然而,美国泽西奶牛的数量正在增加。本研究的目的是确定在同一农场以相似方式管理的荷斯坦奶牛和泽西奶牛的盈利能力。在美国中北部的3个奶牛场对荷斯坦奶牛和泽西奶牛的经济表现进行了比较,每个奶牛场挤奶的奶牛超过500头。牛群的平均分布为21%是泽西奶牛(日产奶量27±0.67千克,乳脂率4.92%±0.24,乳蛋白率3.72%±0.03),79%是荷斯坦奶牛(日产奶量37±1.98千克,乳脂率3.85%±0.21,乳蛋白率3.17%±0.17)。采用比较预算方法,以每头奶牛每年为基础评估不同品种之间存在差异的经济因素,前提是现有农场的牛栏和挤奶厅限制泽西奶牛和荷斯坦奶牛数量相等。2020年的数据来自农场管理软件、农场评估和生产者访谈。进行了敏感性分析,以确定哪些条件会导致不同的结论。分析中考虑的因素包括牛奶及成分产量、牛奶补贴、日粮价格和干物质采食量。在2021年的价格情景下,荷斯坦奶牛每头每年的盈利能力比泽西奶牛高345美元至601美元。尽管泽西奶牛在成分浓度方面具有优势,但由于产奶量更高,荷斯坦奶牛每年产的乳脂多13±4.7%,产的乳蛋白多22±6.6%。这是荷斯坦奶牛盈利能力优势的主要原因;荷斯坦奶牛78%的收入优势来自成分产量的增加。几乎没有发现健康和繁殖方面的差异。敏感性分析表明,如果所有其他因素保持不变,在以下任何一种变化发生时(假设荷斯坦奶牛的指标不变),泽西奶牛的盈利能力将与荷斯坦奶牛相当:泽西奶牛的平均产奶量增加到31千克/天;液态奶价格调整从每千克-0.008美元降至-0.11美元;泌乳奶牛日粮价格从每千克干物质0.27美元提高到0.53美元;或者泽西奶牛的干物质采食量从20千克/天降至15千克/天。该研究未考虑杂交奶牛的盈利能力或新的基础设施投资。总之,在美国中北部的这3个奶牛场,荷斯坦奶牛比泽西奶牛更具盈利能力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0020/10505770/9d990c2eb72b/fx1.jpg

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