黑龙江4个地区鲁梅克斯新品种不同生长年限营养价值分析

doi:10.11686/cyxb2018472

摘要/Abstract

摘要： 为增加黑龙江省高蛋白牧草的种类,引进了鲁梅克斯‘Щавель Чемпион’(冠军酸模)新品种。本试验采用取样分析方法,对黑龙江省哈尔滨、逊克、嫩江、呼玛四个地区2~3年生冠军酸模牧草地上部分的营养指标进行了研究,探讨该品种不同生长年限对营养价值的影响。结果表明,该鲁梅克斯新品种叶簇期、抽茎期、开花期、结实期4个时期,粗蛋白(CP)、粗脂肪(EE)、粗灰分(Ash)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、钙(Ca)、磷(P)的含量均表现为3年生高于2年生;不同种植地对鲁梅克斯的营养成分积累也造成较大影响,如纬度较高,积温较低的呼玛地区营养成分积累远低于其他地区,逊克、嫩江等种植地鲁梅克斯中CP含量积累最高(P<0.05);逊克种植地ADF含量积累最低(P<0.05);嫩江种植地的鲁梅克斯的Ash含量积累最高(P<0.05)。由此可见,鲁梅克斯三年生地上部分的营养价值高于二年生,该牧草CP、ADF、Ash含量受年限和地域的影响较大;牧草的营养价值随着年限的延长呈增加的趋势,且存在地域差异性。

关键词: 鲁梅克斯, 牧草, 新品种, 生长年限, 营养价值

Abstract: In order to increase the range of high-protein forage options in Heilongjiang Province, a new variety of sorrel, ‘Щавель Чемпион’ (Rumex patientia×R. tianschanicus cv. Champion) was introduced. This study reports nutritional analyses of herbage from 2-3 year old stands sampled at key growth stages (rosette stage, stem elongation stage, flowering stage and fruiting stage) in Harbin, Xunke, Nenjiang and Huma regions of Helongjiang Province. It was found that the levels of crude protein (CP), crude fat (EE), crude ash (Ash), neutral detergent fiber (NDF), acid detergent fiber (ADF), Calcium (Ca) and Phosphorus (P) of ‘Щавель Чемпион’ in 3 year old stands was higher than in 2 year old stands in all four sampled growth stages. Environmental conditions in different provincial regions also had a significant impact on the yield and nutritional status of the Rumex herbage. For example, yield accumulation in Huma is much lower than in other areas because of its higher latitude, and lower accumulated temperature. CP levels of Rumex in Xunke and Nenjiang were the highest (P<0.05). ADF content of Rumex grown in Xunke was the lowest (P<0.05), and the Ash content of Rumex planted in Nenjiang was the highest (P<0.05). To summarise, the content of CP, ADF and Ash in Rumex herbage varies with crop growth stage and region; the nutritional value of the herbage increased with stand age in this study.

Key words: Rumex, forage, new varieties, growth years, nutrient properties

赵巧芩, 徐永清, 周晶, 冯珊珊, 蔡振学, 冯哲, 冯旭, 彭丽娜, 董佳敏, 姚树宽, 李凤兰, 胡宝忠. 黑龙江4个地区鲁梅克斯新品种不同生长年限营养价值分析[J]. 草业学报, 2019, 28(3): 175-183.

ZHAO Qiao-qin, XU Yong-qing, ZHOU Jing, FENG Shan-shan, CAI Zhen-xue, FENG Zhe, FENG Xu, PENG Li-na, DONG Jia-min, YAO Shu-kuan, LI Feng-lan, HU Bao-zhong. Nutritional value of new Rumex varieties in stands of differing age in four ecological areas of Heilongjiang province[J]. Acta Prataculturae Sinica, 2019, 28(3): 175-183.

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