Effect of forage species and ensiling conditions on silage composition and quality and the feed choice behaviour of goats

Effect of forage species and ensiling conditions on silage composition and quality and the feed choice behaviour of goats
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饲料品种和青贮条件对青贮饲料成分和品质以及山羊饲料选择行为的影响

DOI:
10.1111/gfs.12414
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发表时间:
2019
影响因子:
2.4
通讯作者:
Südekum
Südekum
中科院分区:
农林科学2区
文献类型:
--
作者:
Scherer;Gerlach;Taubert;Adolph;Südekum

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假设是,在短期偏好试验中,饲料种类和青贮条件对生物胺的形成和山羊的饲料选择有影响。在青贮时,苜蓿(Medicago sativaL.,第一次切割)、红三叶草(Trifolium pratenseL.,第一次切割)和意大利黑麦草(Lolium multiflorumLam.,第二次切割)经过不同的处理,以获得一系列发酵品质。对每种饲料品种准备了六种处理,包括不同的干物质浓度、化学和生物青贮饲料添加剂以及土壤添加物。对青贮饲料进行化学分析(近似成分、发酵产物和其他挥发性化合物、粗蛋白部分和生物胺)并厌氧储存在真空密封塑料袋中,用于萨能型天气(n = 8或6)的偏好试验(每种饲料品种进行一次试验)。六种青贮饲料处理和标准干草的每种可能的双向组合(n = 21 组合)均提供 3 小时的随意摄入。使用多维标度、方差分析以及青贮饲料特性和干物质摄入量(DMI)之间的相关性分析来分析数据。对于每种饲料品种,发酵特性和粗蛋白组分显示处理之间仅存在很小的差异。尽管通过非蛋白氮测量,所有青贮饲料的蛋白水解程度都很高,但生物胺和丁酸浓度较低。不同的处理显然对生物胺的形成和饲料选择没有直接影响。一种饲料物种内的偏好行为差异很大,但三个物种的 DMI 排名非常相似。
The hypothesis was that forage species and ensiling conditions have an impact on the formation of biogenic amines and the feed choice of goats in short‐term preference trials. At ensiling, lucerne (Medicago sativaL., first cut), red clover (Trifolium pratenseL., first cut) and Italian ryegrass (Lolium multiflorumLam., second cut) were treated differently to obtain a range of fermentation qualities. Six treatments of each forage species were prepared and included different dry‐matter concentrations, chemical and biological silage additives, and additions of soil. Silages were sampled for chemical analyses (proximate constituents, fermentation products and other volatile compounds, crude protein fractions and biogenic amines) and stored anaerobically in vacuum‐sealed plastic bags for use in preference trials (one trial for each forage species) with Saanen‐type wethers (n=8 or 6). Each possible two‐way combination of the six silage treatments and a standard hay (n=21 combinations) was offered for ad libitum intake for 3 hr. Data were analysed using multidimensional scaling, analysis of variance and correlation analysis between silage characteristics and dry‐matter intake (DMI). For each forage species, fermentation characteristics and crude protein fractions revealed only small differences among treatments. Although the degree of proteolysis, as measured by non‐protein nitrogen, of all silages was high, biogenic amine and butyric acid concentrations were low. The different treatments apparently had no direct influence on the formation of biogenic amines and feed choice. The preference behaviour within one forage species was strongly divergent, but DMI rankings of the three species were very similar.
农场青贮饲料中的鸟氨酸、腐胺和尸胺。
DOI: --
发表时间: 1966
期刊: The Journal of the Science of Food and Agriculture
影响因子: --
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通讯作者: P. Violante
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发表时间: 2006
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绵羊和山羊对八个高羊茅品种干草的偏好。
DOI: --
发表时间: 2001
影响因子: 3.3
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生产优质牧草青贮饲料。
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发表时间: 2004
期刊:
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青贮过程中饲料中蛋白质的降解以及粗蛋白部分组成的变化。
DOI: --
发表时间: 2010
期刊:
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S. Hoedtke;M. Gabel;A. Zeyner
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