Which breeds were utilized in outcrossing efforts to ensure the continuation of the Yokohama line after early transport losses?
Answer
Malay, Phoenix, common Game fowl, and Sumatra chickens
Following the heavy initial losses of imported long-tailed fowl during the sea voyage to Europe, Hugo du Roi's German breeding efforts required outcrossing to establish a hardier line. The specific breeds mentioned as being used in this crossbreeding process included Malay, Phoenix, common Game fowl, and Sumatra chickens. This outcrossing was essential to ensure the continuation of the lineage, overcoming the genetic bottleneck created by high mortality rates during transport, thereby contributing to the finalized characteristics of the breed recognized today.
Related Questions
What is the scientific binomial nomenclature assigned to the Yokohama chicken?What name were the original long-tailed fowl exported from Yokohama known as in Japan?Which individual initiated the selective breeding that resulted in the modern Yokohama chicken in Germany?To which taxonomic family does the Yokohama belong, along with pheasants and partridges?What key trait distinguishes the annual feather cycle of the Yokohama from the ancestral Onagadori?What specific structural protein requires a high-protein diet to sustain the Yokohama's dramatic tail growth?Which breeds were utilized in outcrossing efforts to ensure the continuation of the Yokohama line after early transport losses?What conservation status does The Livestock Conservancy assign to the Yokohama chicken population?What genetic mechanism explains the Red Shoulder color variety recognized by the American Poultry Association?What major divergence in breed standards exists between the UK and other regions regarding the Yokohama designation?