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Dynamics of reproductive qualities of cows depending on the productive longevity
The Ural type of the domestic black-and-white mottled breed features high productivity rates, good suitability for industrial milking technology, but the duration of its productive longevity is 2.4–2.6 lactations only, although in herds there are cows with productive longevity up to 10 lactations. The decline in productive longevity is associated in particular with reproductive qualities. As a result of the research, it was found that the Sealing Trijun Rockit cows proved to be the mostdoi:10.32634/0869-8155-2022-361-7-8-93-97 fatcat:masaeurtaffhjhx5e53evjr2ba