Nutritional quality of Calobota sericea fodders. A preliminary assessment

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

African Journal of Range & Forage Science Pub Date : 2021-10-26 DOI:10.2989/10220119.2021.1989722

F. Müller, Clement F Cupido, M. I. Samuels

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引用次数: 4

Abstract

This study aimed to provide preliminary information regarding the nutritional quality of Calobota sericea, a preferred perennial legume forage species from the water-limited rangelands of South Africa. Calobota sericea plant samples were collected from the Namaqualand rangelands in the wet and dry season and analysed for secondary compounds, fibre, protein and mineral nutrient content. The results from the fibre analyses were used to determine the digestibility and energy content of fodders. Preliminary results indicate that C. sericea fodders are of better nutritional quality in the wet season and that protein content, digestibility and energy content is sufficient for maintenance of lambs and dry ewes. The energy content, however, was not sufficient for maintenance of pregnant and lactating ewes. Furthermore, certain mineral nutrients (Na, P and K) were not found in sufficient concentrations in this species, and it was thus suggested that further investigation is needed into whether fertilisation could potentially improve the protein, digestibility and mineral nutrient content of C. sericea fodders.

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卡罗贝饲料的营养品质。初步评估

本研究旨在为南非有限水牧地的多年生豆科牧草Calobota sericea的营养品质提供初步资料。在Namaqualand牧场收集了湿季和旱季的Calobota sericea植物样本，分析了次级化合物、纤维、蛋白质和矿物质营养成分的含量。纤维分析结果用于测定饲料的消化率和能量含量。初步结果表明，湿季蚕丝酵母饲料具有较好的营养品质，其蛋白质含量、消化率和能量含量足以维持羔羊和干母羊的生长。然而，能量含量不足以维持妊娠和哺乳期母羊。此外，某些矿质营养素(Na, P和K)在该物种中没有发现足够的浓度，因此，施肥是否可能提高蚕蛹饲料的蛋白质，消化率和矿质营养素含量，需要进一步研究。

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

African Journal of Range & Forage Science ECOLOGY-ENVIRONMENTAL SCIENCES

CiteScore

4.00

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： The African Journal of Range & Forage Science is the leading rangeland and pastoral journal in Africa. The Journal is dedicated to publishing quality original material that advances rangeland ecology and pasture management. The journal aims to publish research of international importance from any region, but as an African journal, we are particularly interested in research from Africa and relevant to the continent. The Journal promotes both science and its application and authors are encouraged to explicitly identify the practical implications of their work. Peer-reviewed research papers and research notes deal primarily with all aspects of rangeland and pasture ecology and management, including the ecophysiology and biogeochemistry of rangelands and pastures, terrestrial plant–herbivore interactions (both domestic and wild), rangeland assessment and monitoring, effects of climate change on rangelands, rangeland and pasture management, rangeland rehabilitation, ecosystem services in support of production, conservation and biodiversity goals, and the identification and development of intensive and semi-intensive pasture and forage resources to meet livestock production needs. Articles highlighting transdisciplinary linkages among biophysical and social sciences that support management, policy and societal values are particularly encouraged. The Journal includes relevant book reviews and invited perspectives that contribute to the development of range and forage science. Letters to the editor that debate issues raised in the Journal are acceptable. The African Journal of Range & Forage Science is the official journal of the Grassland Society of Southern Africa.