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Use of group records of feed intake to select for feed efficiency in rabbit
(Journal of Animal Breeding and Genetics, 2019-04-24) Genètica i Millora Animal
Models for genetic evaluation of feed efficiency (FE) for animals housed in groups when they are either fed ad libitum (F) or on restricted (R) feeding were implemented. Definitions of FE on F included ...
Genetic parameters of sow feed efficiency during lactation and its underlying traits in a Duroc population
(animal, 2019-11-25) Genètica i Millora Animal
As a result of the genetic selection for prolificacy and the improvements in the environment and farms management, litter size has increased in the last few years so that energy requirements of the ...
Indirect genetic effects on the relationships between production and feeding behaviour traits in growing Duroc pigs
(Animal, 2019-10-01) Genètica i Millora Animal
Performance and feeding behaviour traits in growing pigs could be affected by social interaction effects when animals are raised in group. So, properly knowing the genetic correlations between direct ...
Indirect genetic effect model using feeding behaviour traits to define the degree of interaction between mates: an implementation in pigs growth rate
(Animal, 2018-06-06) Genètica i Millora Animal
An alternative implementation of the animal model including indirect genetic effect (IGE) is presented considering pair-mate-specific interaction degrees to improve the performance of the model. Data ...
Longitudinal analysis of direct and indirect effects on average daily gain in rabbits using a structured antedependence model
(Genetics Selection Evolution, 2018-05-10) Genètica i Millora Animal
Background: Indirect genetic efects (IGE) are important components of various traits in several species. Although
the intensity of social interactions between partners likely vary over time, very few ...
Efect of feed restriction on the environmental variability of birth weight in divergently selected lines of mice
(Genetics Selection Evolution, 2019-06-13) Genètica i Millora Animal
Selection of mice for decreased environmental variability of birth weight has achieved higher survivability and larger litter size as a correlated response to canalized selection, which suggests higher ...
Networks of inbreeding coefficients in a selected population of rabbits
(Journal of Animal Breeding and Genetics, 2020-08-17) Genètica i Millora Animal
The correlation between pedigree and genomic‐based inbreeding coefficients is usually discussed in the literature. However, some of these correlations could be spurious. Using partial correlations and ...
Genome-wide association study for feed efficiency in collective cage-raised rabbits under full and restricted feeding
(Animal Genetics, 2020-07-22) Genètica i Millora Animal
Feed efficiency (FE) is one of the most economically and environmentally relevant traits in the animal production sector. The objective of this study was to gain knowledge about the genetic control of ...
Feature Selection Stability and Accuracy of Prediction Models for Genomic Prediction of Residual Feed Intake in Pigs Using Machine Learning
(Frontiers in Genetics, 2021-02-22) Genètica i Millora Animal
Feature selection (FS, i.e., selection of a subset of predictor variables) is essential in high-dimensional datasets to prevent overfitting of prediction/classification models and reduce computation ...
Selection for feed efficiency using the social effects animal model in growing Duroc pigs: evaluation by simulation
(Genetics Selection Evolution, 2020-09-29) Genètica i Millora Animal
Background
Traits recorded on animals that are raised in groups can be analysed with the social effects animal model (SAM). For multiple traits, this model specifies the genetic correlation structure ...