美国东北部黑燕麦种质的营养价值和饲料积累

IF 1.3 Q3 AGRONOMY
David M. Jaramillo, Kathy Soder, Ann Blount, Jose C. B. Dubeux, Stephen Harrison
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引用次数: 0

摘要

黑燕麦(Avena strigosa Schreb.)黑燕麦目前被推荐用于美国农业部植物耐寒区 8b-10a 的秋季和冬季生产,而美国东北部地区(2a-6a 区)并不适合种植黑燕麦。实验的目的是评估 10 个黑燕麦育种品系(简称为 "UF1 "至 "UF10")的饲草积累、粗蛋白 (CP)、中性洗涤纤维 (aNDF)、酸性洗涤纤维 (ADF) 和体外可消化有机物 (IVDOM) 的浓度。实验于 2022 年 4 月至 7 月在宾夕法尼亚州的宾夕法尼亚炉进行。黑麦(× Triticosecale Wittmack cv. TriCal 342)和传奇 567 燕麦(Avena sativa L.)作为对照,哈登燕麦(Haden oat)和冈纳黑麦(Gunner triticale)作为地区推荐的栽培品种。在第一次收获期间,黑燕麦种质的牧草积累范围为每英亩 364 至 864 磅干物质(DM),分别在 UF7 和 UF9 中观察到。在第二次收获期间,黑燕麦的牧草累积量介于每英亩 1048 至 1408 磅干物质(DM)之间,分别来自 UF8 和 UF1。所有黑燕麦的粗蛋白浓度在 16% 到 23% 之间,种质内部没有差异。第一次收获时,所有处理的 IVDOM 浓度平均为 78%,第二次收获时降至 66%。总之,这项研究表明,黑燕麦作为美国东北部的饲料物种值得进一步评估,但还需要进一步的研究来解决该物种的管理问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Nutritive value and forage accumulation of a black oat germplasm in the northeastern United States

Nutritive value and forage accumulation of a black oat germplasm in the northeastern United States

Black oat (Avena strigosa Schreb.) might be an attractive forage species in the northeastern United States, since it is generally more heat tolerant and disease resistant than other cool-season grasses. Black oat is currently recommended for fall and winter production in USDA Plant Hardiness ones 8b–10a, which is beyond the northeastern United States (Zones 2a–6a). The objective was to evaluate 10 black oat breeding lines (referred to as “UF1” through “UF10”) for forage accumulation, crude protein (CP), neutral detergent fiber (aNDF), acid detergent fiber (ADF), and in vitro digestible organic matter (IVDOM) concentrations. The experiment was carried out in April–July 2022 in Pennsylvania Furnace, PA. Triticale (× Triticosecale Wittmack cv. TriCal 342) and Legend 567 oat (Avena sativa L.) were included as controls, as well as Haden oat and Gunner triticale, as regionally recommended cultivars. The forage accumulation within the black oat germplasm ranged from 364 to 864 lb dry matter (DM) acre−1, observed in UF7 and UF9, respectively, during the first harvest. During the second harvest, forage accumulation within black oat ranged from 1048 to 1408 lb DM acre−1, from UF8 and UF1, respectively. Crude protein concentrations ranged from 16% to 23% across all black oats, with no differences found within the germplasm. The IVDOM concentrations averaged 78% across all treatments during the first harvest and decreased to 66% during the second harvest. Overall, this study showed that black oat merits further evaluation as forage species in the northeastern United States, but further studies are required to address management of the species.

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来源期刊
Agrosystems, Geosciences & Environment
Agrosystems, Geosciences & Environment Agricultural and Biological Sciences-Agricultural and Biological Sciences (miscellaneous)
CiteScore
2.60
自引率
0.00%
发文量
80
审稿时长
24 weeks
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