Results 11 to 20 of about 384,345 (264)
The studbook of Pura Raza Menorquina horses only permits the use of black-coated animals with a small quantity of white marks as breeding stock. Its breeding program uses linear morpho-functional traits as selection criteria.
Davinia I. Perdomo-González +4 more
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: The cumulative improvement achieved in the genetic merit for reproductive performance in dairy populations will likely improve dairy cow longevity; therefore, it is time to reassess whether linear type traits are still suitable predictors of survival ...
M. Williams +4 more
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Spikelet number per spike (SNS) is the primary factor that determines wheat yield. Common wheat breeding reduces the genetic diversity among elite germplasm resources, leading to a detrimental effect on future wheat production.
Ziqiang Mo +17 more
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Effects of temperature and dietary nitrogen on genetic variation and covariation in gypsy moth larval performance traits [PDF]
To assess the plastic and genetic components of variation in responses of gypsy moth (Lymantria dispar) 4th instar larvae to temperature and food quality, we applied a split-family four-environment experimental design where full-sibs were reared on ...
Janković-Tomanić Milena +1 more
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Due to the great demand for buffalo milk by-products the interest in technical-scientific information about this species is increasing. Our objective was to propose selection criteria for milk yield in buffaloes based on total milk yield, 305-day milk ...
Humberto Tonhati +5 more
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Estimation of genetic parameters for test-day milk yield in Khuzestan buffalo [PDF]
: The objective of this work was to estimate covariance functions for additive genetic and permanent environmental effects, as well as to obtain genetic parameters for buffalo test-day milk yield using random regression models on Legendre polynomials ...
Mostafa Madad +2 more
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The objectives of this study were to estimate the genetic parameters for milk yield unadjusted and adjusted for days in milk and, subsequently, to assess the influence of adjusting for days in milk on sire rank. Complete lactations from 90 or 150 days of
Fernando Baldi +6 more
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A COMPARISON OF GENETIC AND PHENOTYPIC CORRELATIONS [PDF]
Genetic variances and correlations lie at the center of quantitative evolutionary theory. They are often difficult to estimate, however, due to the large samples of related individuals that are required. I investigated the relationship of genetic- and phenotypic-correlation magnitudes and patterns in 41 pairs of matrices drawn from the literature in ...
openaire +2 more sources
On the Sampling Variance of Intraclass Correlations and Genetic Correlations [PDF]
Abstract Widely used standard expressions for the sampling variance of intraclass correlations and genetic correlation coefficients were reviewed for small and large sample sizes. For the sampling variance of the intraclass correlation, it was shown by simulation that the commonly used expression, derived using a first-order Taylor ...
openaire +5 more sources
Having considered the importance of genetic polymorphism of biochemical structures we considered a study of the genetic characterization of a sample in a cattle population, based on the information offered by the genetic polymorphism at hemoglobin and ...
Nicoleta Isfan +7 more
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