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Reproductive performance of beef-type zebu crossbreds


, : Reproductive performance of beef-type zebu crossbreds. Zootekhniya ( 3): 57-58

For Azerbaijan Zebu (AZ), Aberdeen-Angus (AA) X AZ, and Cuban Zebu X (AA X AZ) heifers birth weight averaged 14.5, 20.8 and 25.7 kg resp., age at 1st mating 24.1, 19.0 and 18.5 months, body weight at 1st mating 223.3, 300.0 and 351.7 kg, age at 1st calving 33.5, 28.4 and 27.8 months, body weight at 1st calving 269.2, 377.5 and 429.2 kg, the duration of calving 31.7, 32.5 and 37.5 min, service period 113.3, 86.7 and 98.3 days, milk yield in the 1st lactation surplus to suckling 568, 842 and 1198 kg, dry period 150.8, 110.8 and 114.4 days, and calving interval 381.7, 360.8 and 358.3 days.

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