Published in Scientific Papers. Series D. Animal Science, Vol. LV
Written by Carmen Georgeta NICOLAE, Horia GROSU, Monica MARIN, Mioara COSTACHE, Nicoleta IȘFAN, Victor NIȚĂ
Increased competitiveness in the biological fish material market required the improving the quantitative characters of exploited species. One of the essential problems of heredity study quantitative characters is knowing the degree of hereditary transmission of characters from parents to offspring. Assessment of genetic determinism was based on heritability. This procedure requires knowledge of causal components of variance. The biological material studied consisted of 50 descendants of Ineu carp breed, who came from five mothers and ten fathers. Each descendant was measured for three characters: body weight, maximum body height and body length at the end of the first three summers of growth. For variance components analysis was used BLUP (Best Linear Unbiased Prediction) methodology, applied to an individual animal model. The results showed that the characteristics considered their genetic determinism is low to medium and medium to high. Thus, it was found that, after the first summer of growth, morphological characters measured have a low genetic determinism (0.1615; 0.1894; 0.1708). After the second summer of growth, body weight and maximum body height have medium genetic determinism and body length high genetic determinism (0.4426). After the third summer, weight and body length have high genetic determinism and maximum body height has medium genetic determinism (0.3270). In conclusion, genetic determinism of considered characters is low to medium, an aspect which leads to the conclusion that to maximize the effect of selection is necessary to consider family selection.
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{tag}meta name="citation_title" content="Study concerning the evaluation of the genetic determinism of some bioeconomic and ecoeconomic characters in Ineu carp breed"{/tag} {tag}meta name="citation_journal_title" content="Scientific Papers. Series D. Animal Science"{/tag} {tag}meta name="citation_publication_date" content="2012"{/tag} {tag}meta name="citation_author" content="Carmen Georgeta NICOLAE" {/tag} {tag}meta name="citation_author" content=" Horia GROSU" {/tag} {tag}meta name="citation_author" content=" Monica MARIN" {/tag} {tag}meta name="citation_author" content=" Mioara COSTACHE" {/tag} {tag}meta name="citation_author" content=" Nicoleta IȘFAN" {/tag} {tag}meta name="citation_author" content=" Victor NIȚĂ" {/tag}
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