Does the inclusion of crop and forestry components in forage‐based systems affect the ruminal fermentation and methane production of Marandu palisadegrass?

IF 2.7 3区农林科学 Q1 AGRONOMY

Grass and Forage Science Pub Date : 2024-08-24 DOI:10.1111/gfs.12690

Alyce Monteiro, Fagner J. Gomes, Solange G. Hoslchuch, Otávio G. Almeida, Bruno C. Pedreira, Adibe L. Abdalla

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引用次数: 0

Abstract

Understanding how forage can be utilized in the rumen is important for optimizing system efficiency. We aimed to evaluate the ruminal fermentation parameters and methane (CH4) production of Marandu palisadegrass [Brachiaria (syn. Urochloa) brizantha (Hochst. ex A. Rich.) R. D. Webster] growing in monoculture or in integrated systems. The experiment was conducted over 3 years to evaluate four systems [livestock (L), livestock‐forestry (LF), crop‐livestock (CL), and crop‐livestock‐forestry (CLF)] during the dry and rainy seasons. In the dry season, palisadegrass in CLF presented the greater crude protein (CP) and the lesser neutral detergent fibre (NDF) concentrations. The greatest gas volume was produced in L, while LF and CL reduced CH4 production compared to L. The greatest ammoniacal‐nitrogen concentration, propionate and valeric acid proportions, and degradability of NDF were in CLF. In the rainy season, palisadegrass in LF and CLF presented the greater CP concentration and the lesser CH4 production. Integration of crop and forestry components in a forage‐based livestock system affected ruminal fermentation parameters of Marandu palisadegrass, consequently, reducing CH4 production. In addition, the inclusion of a forestry component enhanced forage CP concentration. Integrated systems can improve ruminal fermentation, supporting sustainable livestock production and optimizing forage utilization.

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在以饲草为基础的系统中加入农作物和林业成分是否会影响马兰杜棕榈草的瘤胃发酵和甲烷产生？

了解饲草在瘤胃中的利用方式对于优化系统效率非常重要。我们的目的是评估在单一种植或综合系统中生长的马兰都香薷[Brachiaria (syn. Urochloa) brizantha (Hochst. ex A. Rich.) R. D. Webster]的瘤胃发酵参数和甲烷（CH4）产量。实验历时三年，在旱季和雨季对四种系统[畜牧业（L）、畜牧业-林业（LF）、作物-畜牧业（CL）和作物-畜牧业-林业（CLF）]进行了评估。在旱季，CLF 中的 Palisadegrass 粗蛋白（CP）含量较高，中性洗涤纤维（NDF）含量较低。氨态氮浓度、丙酸和戊酸比例以及 NDF 降解性在 CLF 中最高。在雨季，LF 和 CLF 中的 Palisadegrass 表现出较高的 CP 浓度和较低的 CH4 产量。在以饲草为基础的畜牧系统中整合农作物和林业成分会影响马兰杜棕榈草的瘤胃发酵参数，从而减少 CH4 的产生。此外，加入林业成分还能提高饲料中的 CP 浓度。综合系统可以改善瘤胃发酵，支持可持续畜牧生产并优化饲草利用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Grass and Forage Science 农林科学-农艺学

CiteScore

5.10

自引率

8.30%

发文量

审稿时长

12 months

期刊介绍： Grass and Forage Science is a major English language journal that publishes the results of research and development in all aspects of grass and forage production, management and utilization; reviews of the state of knowledge on relevant topics; and book reviews. Authors are also invited to submit papers on non-agricultural aspects of grassland management such as recreational and amenity use and the environmental implications of all grassland systems. The Journal considers papers from all climatic zones.