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山东和福建作为两个海带养殖大省,生产了我国81%以上的海带。尽管同是采用海带夏苗工艺,但是经过几十年的生产实践,这两个省发展和使用的生产工艺在种菜蓄养、种菜数量、采苗方法、附着基以及育苗时间上存在着很多差异。其中最为显著的不同是福建所有的育苗企业都使用白色的维尼纶苗绳(简称白绳),而山东的企业则使用棕绳。为检验这两种苗绳附苗和育苗的实际效果,在实验室进行了培育比较试验。结果表明:在同样的培养周期和环境条件下培养45 d,棕绳上孢子体数量逐渐减少,并且孢子体大小仅为白绳孢子体大小的50%。同时,考虑到苗绳材料来源的丰富程度、前期处理简易程度、经济成本以及实际育苗效果,建议我国北方地区应当全面采用白绳作为海带附着基。
Shandong and Fujian, as two major kelp farming provinces, have produced more than 81% of kelp in China. Although the same is the use of seaweed summer seedling process, but after decades of production practice, the development and use of the two provinces of the production process in planting and breeding, planting number, seedling method, attachment base and seedling time there are many difference. The most striking difference is that all the nursery enterprises in Fujian use white vinylon seedling rope (referred to as white rope), while Shandong enterprises use brown rope. In order to test the practical effect of the two seedlings attached to seedlings and nursery, a comparative experiment was conducted in the laboratory. The results showed that the number of sporophytes on the brown cord decreased gradually after cultured for 45 days under the same culture cycle and environmental conditions, and the sporophyte size was only 50% of the size of the white cord sporophyte. At the same time, taking into account the richness of seedling rope material source, the simplicity of pre-treatment, economic cost and the actual nursery effect, it is suggested that white rope should be fully adopted as the kelp attachment base in the northern part of our country.