Kuri-Rinder cattle from the Buduma Area of West Africa
In their study published in PLOS Genetics, Prof. Decker (University of
Missouri) and a team of international researchers compared the
similarities and differences among the genetics of many different cattle
breeds to determine how the breeds are related. Their research found
mixing of native cattle in Indonesia with imports from India, European
and African cattle in Italy and Spain, and European and Asian cattle in
Korea and Japan. The MU researchers also determined that unique American
cattle breeds, such as Texas longhorns, are the result of breeding
between Spanish cattle, transported from Europe by explorers in the 16th
century, and breeds of Zebu, or Brahman cattle from India imported into
the U.S. from Brazil in the late 1800s. Decker says these discoveries
help advance genetics and uncover important information about human
history.
Prof. Decker says the genetics of these African cattle breeds are similar to those of cattle first domesticated in the Middle East nearly 10,000 years ago, proving that those cattle were brought to Africa as farmers migrated south. Those cattle then interbred with wild cattle, or aurochs, which were native to the region, and changed their genetic makeup enough to confuse geneticists.
"In many ways, the history of cattle genetics mirrors human history," Decker said. "In the case of African cattle, anthropologists and geneticists used to suspect that domesticated African cattle were native to the continent, when in fact, they were brought by migrating peoples thousands of years ago. By better understanding the history of the animals we domesticate, we can better understand ourselves."
Decker also said that cattle breeding is important for animal farmers looking to maximize their herds' meat and dairy production. He says that understanding the genetic history of cattle breeds is important when looking for solutions to agricultural issues.
"Now that we have this more complete genetic history of cattle worldwide, we can better understand the diversity of the species," Decker said. "By understanding the variations present, we can improve cattle for agricultural purposes, whether that is through breeding more disease-resistant animals or finding ways to increase dairy or beef production."
************************
No comments:
Post a Comment