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Results of mating Brown Swiss with German Brown cattle

, : Results of mating Brown Swiss with German Brown cattle. Tierzuchter 28(9): 407-408, 410-411

Between 1965 and 1976, 13 872 batches of semen from 47 Brown Swiss bulls were imported from USA to Bavaria and Wurttemberg, and 11 bull calves were imported from USA to Bavaria. 95 000 German Brown cows (GB) were later inseminated by their semen. 1st lactation milk yields and fat contents of GB purebreds, and crossbreds with 50% (F1 and F2) and 25% (R1) GB inheritance, in Bavaria during 1971-75, were respectively (numbers of heifers in parentheses): (69 000) 3495 kg and 3.99%, (2860) 3764 kg and 3.96%, (1891) 4412 kg and 3.99%, and (9) 3802 and 3.83%. Corresponding values for Wurttemberg during 1967-1974 were: (3500) 3365 kg and 3.98%, (3248) 3532 kg and 3.99%, (123) 4033 kg and 4.18%, and (72) 3858 kg and 4.15%. Milking rate of daughters in progeny evaluation of bulls was 1.47 kg/min for German Brown and R1 heifers and 1.70 and 1.57 kg/min for F1 heifers in Bavaria and Wurttemberg respectively.


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