Agolin®,一种精油混合物,作为高产奶牛饲料添加剂的评价

P. Williams, J. Clark, K. Bean
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引用次数: 3

摘要

对不仅能减少奶牛肠道甲烷排放,还能提高牛奶产量和饲料效率的饲料添加剂的需求日益增长。目前只有一种产品可以实现这两个目标。本研究的目的是确认该产品(Agolin®,Agolin SA, Biere,瑞士)在美国饲养条件下对高产泌乳中期奶牛的生产性能益处。4个相匹配的猪圈,每个猪圈约150头泌乳中期奶牛,平均每头奶牛每天产奶量超过50公斤。所有猪栏随意饲喂普通全混合饲粮,2个试验栏的奶牛通过浓缩农场包装给予精油混合物,每头奶牛每天1 g。在预试期的最后2天(2020年5月11日和12日)和试验结束的最后2天(2020年7月18日和19日)采集样品进行成分分析。在每个饲喂期的最后10 d,每天采用笔法测定干物质采食量。添加Agolin组的乳脂和乳蛋白产量显著高于对照组(P < 0.05)。与对照组饲粮(1.76)相比,Agolin饲粮的能量修正乳/干物质采食量(1.88)有更大的趋势(P = 0.06)。试验表明,Agolin有助于改善对乳制品生产商具有重要经济意义的生产参数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluation of Agolin®, an Essential Oil Blend, as a Feed Additive for High Producing Cows
There is a growing demand for feed additives that can not only reduce dairy enteric methane emissions but also increase milk production and feed efficiency. Just one product is currently commercially available which accomplishes both of these goals. The purpose of this study was to confirm the performance benefits of the product (Agolin®, Agolin SA, Biere, Switzerland) in high producing mid-lactation dairy cows under United States feeding conditions. Four matched pens of approximately 150 mid-lactation cows/pen and averaging over 50 kg of milk/cow/day were enrolled in a side-by-side study. All pens received a common total mixed diet ad libitum, and the essential oil blend was administered via a concentrated farm pack to provide 1 g/cow/day to cows in the 2 test pens. Milk weights were determined, and samples were collected for compositional analysis over the last 2 days of the pretrial (May 11 and 12, 2020) and end of the trial (July 18 and 19, 2020) periods. Dry matter intake was measured by pen daily for the last 10 days of each feeding period. Milk fat and milk protein yields were greater (P < 0.05) for cows receiving added Agolin. There was a tendency (P = 0.06) for energy corrected milk/dry matter intake to be greater for cows receiving the Agolin (1.88) relative to the control diet (1.76). The trial showed that Agolin assisted in improving production parameters of economic importance to dairy producers.
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