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),
Which? suppliers. Testing covers reliability, performance, safety, energy efficiency and value-for-money, as relevant in different cases. Top-rated products are awarded the "Which?" 'Best Buy' status logo, an accreditation recognised by industry and consumers. "Which?" first used the phrase in its second magazine edition in 1958, to describe Boots 365 talcum powder. Conversely, the worst-performing products are labelled 'Don't Buys'. "Which?" awards The Which? Awards is an annual event to 'celebrate the UK's best products and services, from cars and restaurants to supermarkets and financial services'. Award winners are selected by Which? staff, based on test findings and feedback from Which? members