“杂交改良”和“专门化品系”概念辨析及相关问题

Concept Analysis of “Hybrid Improvement “and “Specialized Strain” and Others Related Issues

中文关键词: 杂交改良  专门化品系  本品种选育  竞技用马

英文关键词: hybrid improvement  specialized strain  breed selection  competitive horse

中文摘要:

      杂交不等于改良，“杂交改良”概念属于理论误区，引入品种杂交的动力是“杂交改洋”，地方良种杂交的动力是追求一时“群体表型均值”；本品种选育遗传性稳定，生产性能提高，应提倡品种内选择，保种区外可杂交利用。“专门化品系”是一个畜牧科技名词，有专门的内涵，现仅限于猪、禽、兔等，进行配套系和商品生产。竞技用马(温血种)生产，既不是简单杂交生成杂种马，也不是专门化品系的配套系繁育，它的繁育方法随各项马术运动对运动用马不同要求而不同。

英文摘要:

      Hybridization is not equal to improvement. The concept of “hybrid improvement” is a theoretical misunderstanding. The driving force for introducing breed hybridization is “hybrid to foreign”, and the driving force for the hybridization of local fine breeds is to pursue a temporary “population phenotype average”; The heredity within breed is stable. To improve the performance, selection within breeds should be promoted, and hybridization could be used outside the conservation area. “Specialized strain” is a term of animal husbandry science and technology with special connotations. It is currently limitedly used in pigs, poultry, rabbits, etc., which is used for supporting line and commodity production. The production of competitive horses (warm-blooded breeds) is neither a simple cross-breeding nor a specialized breed of matching line breeding, and its breeding method varies with the different requirements of various equestrian sports for sports horses.