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Theriogenology, 2008
Selection of boars by visual appraisal is the simplest and oldest method used by the swine industry. However, individual performance testing, and later use of computers to incorporate relatives' data and account for environmental variation, resulted in greater rate of improvement for economically important traits.
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Selection of boars by visual appraisal is the simplest and oldest method used by the swine industry. However, individual performance testing, and later use of computers to incorporate relatives' data and account for environmental variation, resulted in greater rate of improvement for economically important traits.
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Some Models of Genetic Selection
Biometrics, 1979This paper begins with a description of the classical theory of viability selection in which probabilities that individuals of various genotypes survive are in proportions that do not change with time and are independent of population structure. Salient features of viability selection with one and two loci are reviewed.
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Genetic Algorithm Guided Selection: Variable Selection and Subset Selection
Journal of Chemical Information and Computer Sciences, 2002A novel Genetic Algorithm guided Selection method, GAS, has been described. The method utilizes a simple encoding scheme which can represent both compounds and variables used to construct a QSAR/QSPR model. A genetic algorithm is then utilized to simultaneously optimize the encoded variables that include both descriptors and compound subsets.
Sung Jin, Cho, Mark A, Hermsmeier
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Genetic Selection for Mastitis Resistance
Veterinary Clinics of North America: Food Animal Practice, 2018Mastitis is a prevalent and costly disease on dairy farms. Improved management and hygiene can reduce the risk of infection by contagious or environmental pathogens, and genetic selection can confer permanent improvement in mastitis resistance. National veterinary recording systems in the Nordic countries have allowed direct selection for sire families
Kent A, Weigel, George E, Shook
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Genetic selection for extensive conditions
Applied Animal Behaviour Science, 1996Abstract Humans have selected animals which are more suited for food production or other purposes, since the process of domestication of livestock began, whether this selection was done knowingly or unknowingly. The deliberate selection of improved breeds and strains has been a particularly important feature of agriculture in the last couple of ...
Simm, G +4 more
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2003
Genetics is the study of heredity and variation among organisms. It is known that in all living organisms, reproduction involves the passing from one generation to the next a genetic code that determines all physical aspects of the offspring. This code is carried on chromosomes. Chromosomes are large molecules in living cells that carry the information
Anatoly Swishchuk, Jianhong Wu
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Genetics is the study of heredity and variation among organisms. It is known that in all living organisms, reproduction involves the passing from one generation to the next a genetic code that determines all physical aspects of the offspring. This code is carried on chromosomes. Chromosomes are large molecules in living cells that carry the information
Anatoly Swishchuk, Jianhong Wu
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Genetic Selection and Equilibrium Stability
Acta geneticae medicae et gemellologiae, 1977The problem of the equilibrium stability of a phenotypic selection process, with a single pair of autosomal alleles, has been numerically studied, on the basis of previously established reproduction differential equations.
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Population genetics and natural selection
Genetica, 1957Genotypic differences are the raw material on which selection acts but not all kinds of genotypic differences are of equal importance in this connection. FISHER (1930) showed that whether or not mating occurs at random, the population genotypic variance for any quantitative character may be analyzed into a number of components and that one of these ...
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2014
A selection of particularly challenging genetics topics is presented in concise and clear text format to aid with rapid command of these important genetics topics.
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A selection of particularly challenging genetics topics is presented in concise and clear text format to aid with rapid command of these important genetics topics.
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Genetic selection in farmed deer
Veterinary Record, 1991Selection is the major tool used by breeders to improve the genetic quality of their livestock. Traditional methods of selection are well proven and useful in improving the economic merit of livestock. The performance of an animal is affected by its genetic quality and by the environment in which it is reared.
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