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Showing 1 to 4 of 4 for “"Linear Type Traits"”.
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Relationships among estimated net income, herdlife and linear type traits in dairy cattle
… genetic and phenotypic (co)variances among type traits, production, and months in milk (MIM), RNI and RNIOC with a multiple trait Sire model. Production information from all cows in classified herds indicated that classified cows are not a random sample of cows in those herds. Heritability …
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Evaluation of optimum and near optimum pair selection methods for increasing predicted relative net income in Jersey cattle
To evaluate the importance of non-linear relationships between Relative net income per day of productive life (RNI/DPL) and individual traits, 921,915 potential offspring were simulated from all possible matings of 20,487 Jersey cows and 45 active AI sires. Predicted milk yield, fat yield, and 13 …
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Evaluation of corrective mating in Jersey cattle
… and evaluate corrective mating programs for 13 linear type traits scored linearly from 50 to 99 points. Estimates of additive genetic variances were 11 to 36 percent of within herd-classifier variance, with largest values for stature, strength, rump angle, rump width and udder depth. Dominance …
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Genetic Parameters for Udder and Teat. Type Traits in Icelandic Cattle Breed
… tip of Icelandic Cattle have been described on a linear scale since 1995. Udder and teats now weigh 20% in Icelandic Cattle’s total merit index, but udder balance, teat structure and teat tip are not included in breeding value estimations. The main objective of this study was to estimate genetic …