Work

Heritability Studies of Egg Production in the Domestic Fowl

Year: 1954

Type: article

Abstract: WHETHER genetic progress is being made has been a topic of increasing concern among poultry breeders. It may be worthwhile to consider some of the possible reasons why this important question should arise in the minds of these breeders. (1) Perhaps an over optimism on the part of the breeders could be an answer. (2) Most demonstration projects have been primarily concerned with only one trait. Most commercial breeders find it necessary to consider several traits, which fact greatly reduces the chance for progress in any one trait. (3) Has the environment been getting worse all the time, thus masking any genetic progress made. As yet, outside of an experiment just beginning (Gowe, 1952), efforts to measure environmental trends have not been attempted in poultry breeding. (4) One might hypothesize that the selection programs utilized to date have used up all or practically all of the additive genetic variance, leaving …

Source: Poultry Science

DOI: 10.3382/ps.0330155

Authors: Steven C. King, C.R. Henderson

Institutions: Cornell University, Cornell University Agricultural Experiment Station

Language: English

Topic: Genetic and phenotypic traits in livestock

Subfield: Genetics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Zero hunger

Open Access status: hybrid

Estimated APC paid: $2,600