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Effects of mass selection on egg production on some reproductive traits in Japanese quail

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dc.contributor.author Alkan, S.
dc.contributor.author Durmus, I.
dc.contributor.author Karabag, K.
dc.contributor.author Karsli, T.
dc.contributor.author Narinc, D.
dc.date.accessioned 2022-08-15T12:55:35Z
dc.date.available 2022-08-15T12:55:35Z
dc.date.issued 2017
dc.identifier.uri http://doi.org/10.1399/eps.2017.168
dc.identifier.uri https://www.european-poultry-science.com/Effects-of-mass-selection-on-egg-production-on-some-reproductive-traits-in-Japanese-quail,QUlEPTUyODg3NzcmTUlEPTE2MTAxNA.html?UID=738BAF116202138D2F9D8ABB9499593481F45E3131BBB7
dc.identifier.uri http://earsiv.odu.edu.tr:8080/xmlui/handle/11489/1473
dc.description.abstract Most of the selection studies in Japanese quail have focused on high body weight or short-term egg production. The effect of selection on long-term egg production is not well known. Japanese quail lines were subjected to phenotypic mass selection in different ways over 11 generations and a control group was reproduced by random mating. A high body weight line (HL), a low body weight line (LL) (based on 5-week body weight), a line (L) subjected to selection for egg production (120 day) and a control line (C) were used. Age at sexual maturity, egg weight, total number of eggs for 45 weeks and body weight of the lines were determined. A nonlinear regression analysis using the Grossman egg production function was used for the comparison of egg productions of the flocks. Selection for low body weight delayed age at sexual maturity and reduced egg weight. On the other hand, selection for high body weight increased egg weight and peak production level. The highest value for the b(4)-parameter of the Grossman Model was determined for the HL line in which the fastest decrease in egg production occurred after the peak production. The highest value for persistency parameter (p) of the model was found for the L line where the quail had high egg production for a longer period. The selection for high body weight led to a reduction in egg production by 13.5%. Eleven generations of selection for increasing 120 days egg production resulted in an increase by 5.05%. The use of a selection criterion estimating total egg production better would make selection more efficient and improve egg production. Determination of the monthly egg yield, which has a high genetic correlation with total egg production, is suggested for this purpose. en_US
dc.language.iso eng en_US
dc.publisher EUGEN ULMER GMBH CO, POSTFACH 700561 WOLLGRASWEG 41, D-70599 STUTTGART, GERMANY en_US
dc.relation.isversionof 10.1399/eps.2017.168 en_US
dc.rights info:eu-repo/semantics/openAccess en_US
dc.subject COMPLETE NUTRITIONAL ENVIRONMENTS; COTURNIX-COTURNIX-JAPONICA; LONG-TERM SELECTION; 4-WEEK BODY-WEIGHT; DIVERGENT SELECTION; SEXUAL-MATURITY; GENETIC-PARAMETERS; GROWTH CURVE; CORRELATED RESPONSES; ABDOMINAL FAT en_US
dc.subject Japanese Quail; genetics; mass selection; Grossman model; egg production; persistency en_US
dc.title Effects of mass selection on egg production on some reproductive traits in Japanese quail en_US
dc.type article en_US
dc.relation.journal EUROPEAN POULTRY SCIENCE en_US
dc.contributor.department Ordu Üniversitesi en_US
dc.contributor.authorID 0000-0002-4516-6480 en_US
dc.identifier.volume 81 en_US


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