The milk performance and body conformation of cows on Polula Experimental Farm
2002
Orgmets, E. | Saveli, O. | Voore, M. (Academical Agricultural Society, Tartu (Estonia))
The milk performance and body conformation of 1st lactation cows in Polula Experimental Farm were analyzed. The cows were divided into 5 groups: 1)Estonian Native breed (EK), 2)Estonian Red breed (EPK), 3)Red-and-White Holstein breed (RHF), 4)Estonian Holstein breed (EHF) with average pedigree index (112), 5)Estonian Holstein breed (EHFt) with higher pedigree index (112). The highest test-day milk production was obtained EHFt from and lowest from EK cows (35.9 kg and 24.6 kg, respectively). The 100 day milk performance was higher in both Estonian Holstein group and lower in EK and EPK breeds. The final score and majority of the linear type traits were better in cows of RHF and EHFt groups compared to the rest of groups. The high-producing cows were taller, with wider and deeper body, wide rump, higher rear udder, but with lower udder depth, weaker center ligament and deeper hooves than the cows with liower milk production. The body measurements and body weight of the cows of EHFt and RHF groups were not significantly different. However RHF cows had significantly larger body measurements than the cows in EPK and EHF groups. The larger cows had considerably higher milk production than smaller ones
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تم تزويد هذا السجل من قبل Estonian University of Life Sciences