發(fā)布時(shí)間：2019-04-27 09:48

【摘要】：不同生育期(營(yíng)養(yǎng)期、現(xiàn)蕾期、開(kāi)花期、盛花期、結(jié)莢期)選用品種(新牧1號(hào)、新牧2號(hào)、當(dāng)?shù)剀俎�、紅豆草、高輝苜蓿)進(jìn)行刈割,研究刈割時(shí)期對(duì)紫花苜蓿和紅豆草產(chǎn)量及營(yíng)養(yǎng)價(jià)值的影響。結(jié)果表明,新牧2號(hào)苜蓿開(kāi)花期的鮮草產(chǎn)量和干草產(chǎn)量顯著高于其他品種其他幾個(gè)時(shí)期鮮草產(chǎn)量和干草產(chǎn)量(P0.05);牧草在營(yíng)養(yǎng)期的粗蛋白質(zhì)和粗灰分含量顯著高于其他幾個(gè)刈割時(shí)期(P0.05);牧草在盛花期的NFE含量顯著高于其他幾個(gè)刈割時(shí)期(P0.05);隨著生育期由營(yíng)養(yǎng)期延遲至結(jié)莢期,牧草的中性洗滌纖維、酸性洗滌纖維含量顯著增加(P0.05),而牧草的相對(duì)飼用價(jià)值含量顯著降低(P0.05);新牧1號(hào)、新牧2號(hào)、當(dāng)?shù)剀俎�、紅豆草、高輝苜蓿5個(gè)品種的干物質(zhì)、粗蛋白質(zhì)、粗脂肪、粗纖維、粗灰分、中性洗滌纖維、酸性洗滌纖維、酸性洗滌木質(zhì)素、酸不溶灰分、相對(duì)飼用價(jià)值無(wú)顯著差異(P0.05)。牧草現(xiàn)蕾期的產(chǎn)量和營(yíng)養(yǎng)價(jià)值優(yōu)于其他幾個(gè)時(shí)期,新牧2號(hào)的產(chǎn)量和營(yíng)養(yǎng)價(jià)值優(yōu)于其他幾個(gè)品種。
[Abstract]:Varieties (Xinmu No. 1, Xinmu No. 2, local alfalfa, red bean grass, Gaohui alfalfa) were selected for cutting at different growth stages (vegetative stage, bud stage, flowering stage, full flowering stage, pod setting stage). The effects of cutting time on the yield and nutritional value of alfalfa and sage were studied. The results showed that the fresh grass yield and hay yield of Xinmu 2 alfalfa at flowering stage were significantly higher than those of other varieties at other stages (P0.05). The content of crude protein and crude ash in vegetative stage was significantly higher than that in other cutting stages (P0.05), and the content of NFE in full flowering stage was significantly higher than that in other cutting stages (P0.05), and the content of crude protein and ash in forage was significantly higher than that in other cutting stages (P0.05). The content of neutral detergent fiber (NDF) and acid detergent fiber (ACF) of forage increased significantly (P0.05), while the relative feed value of forage decreased significantly (P0.05) as the growth period was delayed from vegetative stage to pod setting stage. Xinmu 1, Xinmu 2, dry matter, crude protein, crude fat, crude fiber, crude ash, neutral detergent fiber, acid washing lignin, acid insoluble ash of 5 varieties of alfalfa, including local alfalfa, red bean grass, high-glow alfalfa, crude protein, crude fat, crude fiber, crude ash, neutral detergent fiber, acid washing lignin, acid insoluble ash. There was no significant difference in relative feeding value (P0.05). The yield and nutritional value of herbage in bud stage were better than those in other periods, and the yield and nutritional value of Xinmu No. 2 were better than those of other varieties.
【作者單位】： 西北農(nóng)林科技大學(xué)動(dòng)物科技學(xué)院;
【基金】：基金項(xiàng)目 國(guó)家牧草產(chǎn)業(yè)技術(shù)體系(CASR-35-01A) 國(guó)家燕麥產(chǎn)業(yè)技術(shù)體系(CARS-08-D1)
【分類(lèi)號(hào)】：S541;S816

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