Results 11 to 20 of about 259,665 (263)

Significance of breeding value indicators for prediction of milk yield [PDF]

open access: yesТехнологія виробництва і переробки продуктів тваринництва, 2022
A comparative assessment of the significance of various indicators of the breeding value of breeding bulls for predicting milk yield in the highly productive herd of the farm economy "Alfa" was carried out.
Shablia V.   +4 more
doaj   +1 more source

Advanced optimum contribution selection as a tool to improve regional cattle breeds: a feasibility study for Vorderwald cattle

open access: yesAnimal, 2020
In the middle of the 20th century, increasing inbreeding rates were identified as a threat to livestock breeding. Consequences include reduced fertility, fitness and phenotypic expression of lethal alleles. An important step in mitigating this inbreeding
S. Kohl, R. Wellmann, P. Herold
doaj   +1 more source

Implementation of advanced Optimum Contribution Selection in small-scale breeding schemes: prospects and challenges in Vorderwald cattle

open access: yesAnimal, 2020
Vorderwald cattle are a regional cattle breed from the Black Forest in south western Germany. In recent decades, commercial breeds have been introgressed to upgrade the breed in performance traits.
S. Kohl, R. Wellmann, P. Herold
doaj   +1 more source

Agroecological estimation of the new soybean lines developed in the Agricultural Research Center “Donskoy”

open access: yesЗерновое хозяйство России, 2020
The current paper has presented a material on agroecological estimation of the new soybean lines developed in the Agricultural Research Center “Donskoy”.
A. R. Ashiev   +2 more
doaj   +1 more source

Effects of Imported Semen Based on Different Selection Indices on Some Production and Reproduction Traits in Iranian Holstein Cattle

open access: yesAnimals, 2022
The aim of the present study was to evaluate the effects of imported semen of Holstein bulls from different countries on the economic traits of their daughters using the Lifetime Net Income (LNI) index in various climates of Iran.
Masume Nazari   +3 more
doaj   +1 more source

Genetic progress evaluation of growth traits in Moghani sheep [PDF]

open access: yesBiotechnology in Animal Husbandry, 2023
For evaluation of growth traits' genetic progress, pedigree information of 39408 Moghani sheep, between 1986 to 2016, at the breeding station of Moghani sheep was used.
Esrafili Taze Kand Mohammaddiyeh Maryam   +1 more
doaj  

Domestic estimated breeding values and genomic enhanced breeding values of bulls in comparison with their foreign genomic enhanced breeding values

open access: yesAnimal, 2015
Estimated breeding values (EBVs) and genomic enhanced breeding values (GEBVs) for milk production of young genotyped Holstein bulls were predicted using a conventional BLUP - Animal Model, a method fitting regression coefficients for loci (RRBLUP), a method utilizing the realized genomic relationship matrix (GBLUP), by a single-step procedure (ssGBLUP)
J. Přibyl   +8 more
openaire   +3 more sources

Congruence between selection on breeding values and farmers’ selection criteria in sheep breeding under conventional nucleus breeding schemes

open access: yesAnimal, 2011
Designing breeding schemes suitable for smallholder livestock production systems in developing regions has hitherto been a challenge. The suggested schemes either do not address farmers’ breeding goals (centralized station-based nucleus schemes) or yield
S. Gizaw   +4 more
doaj   +1 more source

Economic values in broiler breeding

open access: yesPoultry Science, 1998
The objectives of this study were to derive economic values in broiler breeding and to determine their relationship with production circumstances. Economic values were derived using a deterministic economic model based on profit equations with a fixed amount of broiler meat output of the production system.
Jiang, X.S., Groen, A.F., Brascamp, E.W.
openaire   +3 more sources

Multibreed analysis by splitting the breeding values [PDF]

open access: yesGenetics Selection Evolution, 2006
Abstract An equivalent model for multibreed variance covariance estimation is presented. It considers the additive case including or not the segregation variances. The model is based on splitting the additive genetic values in several independent parts depending on their genetic origin.
García Cortes, Luis Alberto   +1 more
openaire   +6 more sources

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