To select optimal cross combination of grazing lamb production, and find a more beneficial way for using Gansu Alpine Merino germplasm resource in the plateau habitats, take introduced breeds (Texel, White Suffolk, Australian Merino and Bond) as rams, Gansu Alpine Merino as ewes to carry out cross experiment and pilot studies. With artificial insemination, the mating season was in November, and lambing in April next year. The growth rate of the crossing lambs (birth weight, weaning weight, 6-month-o...
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