Your conditions: 李美君
  • 贵州省野生苦苣苔科物种多样性与地理分布

    Subjects: Biology >> Botany >> Applied botany submitted time 2021-04-13 Cooperative journals: 《广西植物》

    Abstract: In this study, the species diversity and geographical distribution pattern of wild Gesneriaceae in Guizhou Province were studied based on the establishment of a list and geographical distribution database of wild Gesneriaceae in Guizhou Province. Through the literature and a field investigation, the species composition, endemism, horizontal distribution, vertical distribution and similarity were analysed. Finally, the hotspots of Gesneriaceae in Guizhou were determined by a complementary algorithm. The results were as follows: There are 153 species (including subspecies) of Gesneriaceae in Guizhou Province, belonging to 2 tribes, 8 subtribes, and 28 genera. These plants are distributed among 75 county-level administrative districts. There are 128 species endemic to China and 45 endemic to Guizhou, and the vertical distribution is the most abundant at altitudes of 900-1 300 m. The calculation of the provincial similarity coefficient showed that Guizhou and Guangxi had the highest similarity. Finally, 10 hot spots were selected, representing 75% of the Gesneriaceae plants. Guizhou Province is a typical karst plateau mountainous area that is rich in species of Gesneriaceae, especially Oreocharis, Primulina, Petrocodon and Paraboea, which have high species diversity and regional specificity. This study can provide a theoretical reference for the conservation and sustainable utilization of Gesneriaceae plant resources in Guizhou Province.

  • 不同蛋白质源组合对保育猪生长性能及血清生化指标的影响

    Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》

    Abstract:本试验将鱼粉、血浆蛋白粉、酵母粉、肠膜蛋白粉按一定比例组合添加到饲粮中,旨在对比研究不同蛋白质源组合对保育猪生长性能及血清生化指标的影响。选用初始体重为(6.36±0.20) kg的“杜×长×大”三元杂交保育猪108头,随机分为3组,每组6个重复,每个重复6头猪。3组保育猪分别饲喂含1.5%血浆蛋白粉+2.0%鱼粉(A组,作为对照组)、3.0%肠膜蛋白粉+5.0%鱼粉(B组)、2.0%酵母粉+2.0%肠膜蛋白粉+2.0%鱼粉(C组)的饲粮,预试期3 d,正试期14 d。结果表明:1)B组的平均日采食量和平均日增重均显著低于A组和C组(P<0.05),与A组相比,C组的平均日采食量和平均日增重分别提高1.76%和8.13%,但差异不显著(P>0.05);在料重比方面,B组和C组与对照组A相比差异均不显著(P>0.05),但C组显著低于B组(P<0.05)。2)血清总蛋白、白蛋白、球蛋白、尿素氮含量与白球比以及谷丙转氨酶和谷草转氨酶活性3组间无显著差异(P>0.05)。3)与A组相比,B组钱重比增加13.47%(P>0.05),C组钱重比降低5.22%(P>0.05)。由此可见,2.0%酵母粉+2.0%肠膜蛋白粉+2.0%鱼粉组合在提高保育猪生长性能、经济效益方面效果最好,1.5%血浆蛋白粉+2.0%鱼粉组合效果次之,而3.0%肠膜蛋白粉+5.0%鱼粉组合相比之下效果较差

  • 不同蛋白质源组合对保育猪生长性能及血清生化指标的影响

    Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》

    Abstract:本试验将鱼粉、血浆蛋白粉、酵母粉、肠膜蛋白粉按一定比例组合添加到饲粮中,旨在对比研究不同蛋白质源组合对保育猪生长性能及血清生化指标的影响。选用初始体重为(6.36±0.20) kg的“杜×长×大”三元杂交保育猪108头,随机分为3组,每组6个重复,每个重复6头猪。3组保育猪分别饲喂含1.5%血浆蛋白粉+2.0%鱼粉(A组,作为对照组)、3.0%肠膜蛋白粉+5.0%鱼粉(B组)、2.0%酵母粉+2.0%肠膜蛋白粉+2.0%鱼粉(C组)的饲粮,预试期3 d,正试期14 d。结果表明:1)B组的平均日采食量和平均日增重均显著低于A组和C组(P<0.05),与A组相比,C组的平均日采食量和平均日增重分别提高1.76%和8.13%,但差异不显著(P>0.05);在料重比方面,B组和C组与对照组A相比差异均不显著(P>0.05),但C组显著低于B组(P<0.05)。2)血清总蛋白、白蛋白、球蛋白、尿素氮含量与白球比以及谷丙转氨酶和谷草转氨酶活性3组间无显著差异(P>0.05)。3)与A组相比,B组钱重比增加13.47%(P>0.05),C组钱重比降低5.22%(P>0.05)。由此可见,2.0%酵母粉+2.0%肠膜蛋白粉+2.0%鱼粉组合在提高保育猪生长性能、经济效益方面效果最好,1.5%血浆蛋白粉+2.0%鱼粉组合效果次之,而3.0%肠膜蛋白粉+5.0%鱼粉组合相比之下效果较差