出典:Wiktionary
出典:『Wiktionary』 (2025/05/29 17:46 UTC 版)
The terms landrace and breed have some overlap. The former is sometimes used in cases where selective breeding was the initial source of differentiation. The same term is also sometimes used in the names of breeds based on landraces, even though the breed is itself not considered a landrace. Breeds also sometimes retain the name of the landrace from which they derived.
出典:Wikipedia
出典:『Wikipedia』 (2011/07/13 05:39 UTC 版)
A landrace is a local variety of a domesticated animal or plant species which has developed largely by natural processes, by adaptation to the natural and cultural environment in which it lives. It differs from a formal breed which has been bred deliberately to conform to a particular standard type. Landraces are usually more genetically and physically diverse than formal breeds. Many formal breeds originated from landraces, and sometimes a particular type has both landrace and formal breed populations. Sometimes a formalised breed retains the "landrace" name, despite no longer being a true landrace.