秘鲁高海拔地区用作牲畜饲料的车前草和菊苣的产量和营养价值

Grassland Research Pub Date : 2024-10-10 DOI:10.1002/glr2.12098

Luis A. Vallejos-Fernández, Ricardo Guillén, César Pinares-Patiño, Rubén García-Ticllacuri, Yudith Y. Muñoz-Vilchez, Carlos Quilcate, Wuesley Y. Alvarez-García

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引用次数: 0

摘要

背景评估饲草资源对南美洲安第斯山脉畜牧业的可持续性至关重要，尤其是在灌溉用水少和土壤偏酸的条件下。方法我们对秘鲁北部高原三个高海拔地区（AL）的两个菊苣（Cichorium intybus L.）品种和一个车前草（Plantago lanceolata L.）品种的产量和营养价值进行了评估：AL-I: 2300-2800 m.a.s.l.、AL-II: 2801-3300 m.a.s.l.和 AL-III: 3301-3800 m.a.s.l.，为期一年。评估参数包括干物质产量（DMY）、株高（PH）、生长率（GR）和营养价值。结果与两种菊苣栽培品种相比，车前草的年干物质产量（ADMY）、植株高度（PH）和营养价值（GR）最高（Puna II 和 Sese 100 菊苣以及 Tonic 车前草的年干物质产量分别为 9.34、9.56 和 13.39 毫克/公顷；p = 0.0019）。AL-I的ADMY和GR最大。在营养价值方面，仅在干物质体外消化率和代谢能方面观察到差异，菊苣栽培品种高于车前草。结论结果表明，所评估的三个栽培品种可用作牛饲料中的营养补充剂，与禾本科植物搭配使用，因为它们具有很高的营养价值，适合秘鲁山区的牛奶生产。

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Forage yield and nutritive value of plantain and chicory for livestock feed at high altitudes in Peru

Background

Evaluation of forage resources is vital for the sustainability of livestock farming in the South American Andes, especially under conditions of low water availability for irrigation and acid soils.

Methods

We evaluated the productivity and nutritive value of two cultivars of chicory (Cichorium intybus L.) and one of plantain (Plantago lanceolata L.) in three high-altitude sites (AL) of the northern highlands of Peru: AL-I: 2300–2800 m.a.s.l, AL-II: 2801–3300 m.a.s.l. and AL-III: 3301–3800 m.a.s.l., for 1 year. The parameters evaluated were dry matter yield (DMY), plant height (PH), growth rate (GR) and nutritional value.

Results

Plantain achieved the greatest annual DMY (ADMY), PH and GR compared to the two chicory cultivars (9.34, 9.56 and 13.39 Mg ha⁻¹ for Puna II and Sese 100 chicory and Tonic plantain, respectively; p = 0.0019). The greatest ADMY and GR occurred at AL-I. Regarding nutritional value, differences were observed only for in vitro digestibility of dry matter and metabolisable energy with chicory cultivars higher than plantain.

Conclusions

The results indicate that the three cultivars evaluated may be used as a nutritional supplement in cattle feed, associated with grasses because they have high nutritive value suitable for milk production in the mountain regions of Peru.

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