The genetic trend of the AI sire population was calculated as the linear regression of the average breeding value for each year-group of sires on time. The genetic progress values found were -!-22 t 6 and + zz ! io kg FCM per year for the SRB and SI,B breeds respectively for the period 19 6 1 to 19 6 9 .On the assumption that the genetic trend in the cow population moves parallel with that of the population of sires, the former was estimated as the linear regression of the average breeding value of the sires of each year-batch first lactation cows on time. For the period studied, 19 66 to 1974 , the genetic progress worked out at -f-4z ! 3 . 5 kg FCM for SRB and + 51 ± 3 .6 kg for SI,B. These findings correspond closely to earlier reports on genetic trends in Swedish cow populations.
The poster describes the main activities in a joint Swedish-Norwegian research project. The ultimate purpose is to develope tools for individual production control and flock management in domestic reindeer production
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