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有关橡胶兔食木诸亚种和生态型冬季粗蛋白质、磷及体外消化率的评估已有少量研究。但在这些研究中,未标明亚种及生态型的来源。本研究的目的在于验证这样一个假设:在土壤类型相同的普通庭园中生长的椽胶兔食木某些亚种和生态型的粗蛋白质、磷和体外消化率将超过其它亚种和生态型。同时,还对这些亚种和生态型的测定结果与其它冬季饲草种进行了比较。 3个测定因子在这些亚种和生态型中均有明显差异。与其它冬季饲草相比,橡胶兔食木的某些生态型其粗蛋白质、磷和体外消化率均较高。由于亚种与生态型间存在较大差异,一个选择计划便可导致培育作为一种冬季饲草的优良橡胶兔食木类型。
There have been a few studies on the evaluation of rubber rabbit woody species and eco-type winter crude protein, phosphorus and in vitro digestibility. However, in these studies, subspecies and ecotypes were not identified. The purpose of this study was to test the hypothesis that some ratoon rabbits grown in common terraces with the same soil types will have more P than other subspecies and ecotypes in some subspecies and ecotypes of crude protein, phosphorus and in vitro digestibility. At the same time, these subspecies and ecotypes were also compared with other winter forage species. The three determinants differed significantly among these subspecies and ecotypes. Compared with other winter forages, some of the ecotypes of rubber rabbit food had higher crude protein, phosphorus and in vitro digestibility. Due to the large differences between subspecies and ecotypes, a selection plan can lead to the development of excellent rubber rabbit wood types as a winter forage.