Dzo Dzo A dzo (Tibetan མཛོ་ mdzo) (also spelled zo, zho and dzho) is a hybrid between the yak and domestic cattle. The word dzo technically refers to a male hybrid, while a female is known as a "dzomo" or "zhom". In Mongolian it is called khainag (хайнаг). There is also the English language portmanteau term of yattle, a combination of the words yak and cattle, as well as yakow, a combination of the words yak and cow. Dzomo are fertile (or, fecund) while dzo are sterile. As they are a product of the hybrid genetic phenomenon of heterosis (hybrid vigor),
Animal Production Science Animal Production Science Animal Production Science is an international peer-reviewed scientific journal for agriculture and animal science and published by CSIRO Publishing. Research articles in the journal focus on improving livestock and food production, and on the social and economic issues that influence primary producers. It is predominantly concerned with domesticated animals (beef cattle, dairy cows, sheep, pigs, goats and poultry); however, contributions on horses and wild animals are also published where relevant. It was established in 1961 as "Australian Journal of Experimental Agriculture and Animal Husbandry". In 1985, this was shortened to "Australian Journal of Experimental Agriculture". The current