Januarius Gobilik, Hasbudie Baco, Mohd. Azid Kabul, Suhaimi Dollah, Stephen T. Morris, Cory Matthew
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Understorey herbage was also analysed for nutritive value, botanical composition and herbage accumulation within one grazing-regrowth cycle.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>The herbage-harvested estimate was 2.0−2.4 t dry matter (DM) ha<sup>−1</sup> year<sup>−1</sup> for 9 year old subsystems and 1.4−1.7 t DM ha<sup>−1</sup> year<sup>−1</sup> for a 12 year old subsystem. Herbage metabolisable energy (ME) was 8.3−8.5 MJ kg<sup>−1</sup> DM and crude protein (CP) was 15%−16% DM. FCE values for subsystems ranged from 32 to 94 kg DM kg<sup>−1</sup> liveweight-gain.</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>Herbage DM yield is declining, while herbage ME is marginal but CP is adequate. FCE is suboptimal but can be optimised by defining the trajectory of declining herbage production with canopy closure as plantations age and matching stocking rate to herbage supply using a comparative-stocking-rate-type statistic.</p>\n </section>\n </div>","PeriodicalId":100593,"journal":{"name":"Grassland Research","volume":"2 1","pages":"56-68"},"PeriodicalIF":0.0000,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/glr2.12044","citationCount":"0","resultStr":"{\"title\":\"Feed profile analysis of oil palm-integrated beef cattle farming systems by metabolic energy budgeting and implications for beef production and pastoral system design\",\"authors\":\"Januarius Gobilik, Hasbudie Baco, Mohd. Azid Kabul, Suhaimi Dollah, Stephen T. Morris, Cory Matthew\",\"doi\":\"10.1002/glr2.12044\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <h3> Background</h3>\\n \\n <p>Oil palm is a tropical crop with worldwide plantings approaching 20 million ha and large areas in Indonesia, Malaysia and Thailand. The plantations are readily managed as silvopastoral systems incorporating cattle grazing (Oil Palm Silvopastoral System for Cattle, OPSC) but there is a need for analytical tools and data to understand system herbage supply and feed conversion efficiency (FCE).</p>\\n </section>\\n \\n <section>\\n \\n <h3> Methods</h3>\\n \\n <p>Metabolic energy budgeting was used to estimate herbage harvested by cattle in three OPSC subsystems, 9 and 12 years after oil palm establishment, and FCE of the subsystems was determined. 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引用次数: 0
摘要
背景油棕榈是一种热带作物，全球种植面积接近2000万公顷，在印度尼西亚、马来西亚和泰国有大片面积。种植园很容易作为包括放牧的森林畜牧系统进行管理（Oil Palm Silvopastoric System for cattle，OPSC），但需要分析工具和数据来了解系统牧草供应和饲料转化效率（FCE）。方法采用代谢能量预算法对油棕建立后9年和12年三个OPSC子系统的牛采草量进行估算，并测定各子系统的FCE。还分析了底层牧草在一个放牧再生周期内的营养价值、植物成分和牧草积累。结果牧草收获量估算值为2.0−2.4 t干物质（DM） ha−1 9年历史的子系统为−1年，1.4−1.7 t DM ha−1 一个12年历史的子系统为−1年。牧草代谢能（ME）为8.3−8.5 MJ kg−1 DM，粗蛋白（CP）为15%−16% 子系统的DM.FCE值范围从32到94 kg DM kg−1活重增加。结论牧草DM产量呈下降趋势，牧草ME产量较低，但CP产量充足。FCE是次优的，但可以通过定义随着种植园年龄的冠层关闭导致牧草产量下降的轨迹，并使用比较放养率类型统计将放养率与牧草供应相匹配来优化。
Feed profile analysis of oil palm-integrated beef cattle farming systems by metabolic energy budgeting and implications for beef production and pastoral system design
Background
Oil palm is a tropical crop with worldwide plantings approaching 20 million ha and large areas in Indonesia, Malaysia and Thailand. The plantations are readily managed as silvopastoral systems incorporating cattle grazing (Oil Palm Silvopastoral System for Cattle, OPSC) but there is a need for analytical tools and data to understand system herbage supply and feed conversion efficiency (FCE).
Methods
Metabolic energy budgeting was used to estimate herbage harvested by cattle in three OPSC subsystems, 9 and 12 years after oil palm establishment, and FCE of the subsystems was determined. Understorey herbage was also analysed for nutritive value, botanical composition and herbage accumulation within one grazing-regrowth cycle.
Results
The herbage-harvested estimate was 2.0−2.4 t dry matter (DM) ha−1 year−1 for 9 year old subsystems and 1.4−1.7 t DM ha−1 year−1 for a 12 year old subsystem. Herbage metabolisable energy (ME) was 8.3−8.5 MJ kg−1 DM and crude protein (CP) was 15%−16% DM. FCE values for subsystems ranged from 32 to 94 kg DM kg−1 liveweight-gain.
Conclusions
Herbage DM yield is declining, while herbage ME is marginal but CP is adequate. FCE is suboptimal but can be optimised by defining the trajectory of declining herbage production with canopy closure as plantations age and matching stocking rate to herbage supply using a comparative-stocking-rate-type statistic.
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