克立马丁对犬过敏性瘙痒疗效的临床试验

给７２只变态反应性瘙痒犬投服延胡索酸克立马丁，经治疗使７只犬的瘙痒消除，另１４只明显改善，但还留有一些瘙痒。药物的副作用很少见，仅３只犬因不良反应而停止了治疗。     

禽肉制品软包装加工技术研究

本文以加工软包装保鲜风味鸡为例，对软包装保鲜加工工艺进行了分析和研究，制定了合理的操作工艺流程，此项研究，对专业户肉禽产品的深加工和中小型食品加工企业开发新产品，提高经济效益，提供了新的途径。     

蛋鸡饮水中添加88－C微生物制剂对产蛋性能的影响

蛋鸡饮水中添加８８－Ｃ微生物制剂对产蛋性能的影响牟玉清，李诗洪（四川农业大学６２５０１４）李克弦，方盛荣，亢正生（大邑县畜牧局）“８８－Ｃ微生物”制剂，是一种高效生物增产剂。该制剂具有改善生物营养，调节生物生理机能，防病抗病，增加生物产量，改善产品品...     

Materials: unidirectional solidification of cast iron

The segregation of sulfur in liquid cast iron was studied under conditions of microgravity on Spacelab 1. A rod of cast iron containing carbon, silicon, sulfur, and phosphorus was unidirectionally solidified at four different rates. The influence of sulfur on the graphite structure and the stability of an aluminum oxide skin deposited on the surface of the specimen were investigated.     

Recurring origins of allopolyploid species in asplenium

A large proportion of plant species has originated through allopolyploidy: interspecific hybridization followed by chromosome doubling. Heterozygosity remains fixed in allopolyploids because of nonsegregation of parental chromosomes. Two allotetraploid species of the fern genus Asplenium show allozyme polymorphisms at loci that are polymorphic in their diploid progenitors, indicating that each has originated more than once and implicating continued gene flow from diploids to tetraploids.