interval, number of days open and milk yield were not significantly
different between altitude regions (P > 0.05). In contrast, cows from
the LAR were on average four and seven months older at first
calving and had a clearly decreased lactation length (P < 0.001).
Total milk yield and the reproductive lifespan of the cows
decreased with altitude and/or eroded areas. Also, the draft lifespan
of oxen gradually decreased with altitude (P < 0.001).