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Title

CORRELATED RESPONSE TO SELECTION FOR BREAST WEIGHT IN JAPANESE QUAIL

Author(s)

 KHALDARI M. | FOROUTANIFAR S.

Pages

  -

Abstract

 THECURRENT STUDY WAS CARRIED OUTTO INVESTIGATE THE DIRECT AND INDIRECT RESPONSES TO SELECTION FOR FOURWEEK BODY WEIGHT (4WK BW) AND FOUR-WEEK BREAST WEIGHT (4WK BRW) AND TO DETERMINEGENETIC CONTRIBUTION OF REMINDER FOUNDERS TO THE LAST GENERATION.A TOTAL NUMBER OF 351 BIRDS WERE EQUALLY ALLOCATED TO THE THREE LINES. TWO SELECTED LINES (S1 AND S2 FOR BODY WEIGHT AND BREAST WEIGHT, RESPECTIVELY) ALONG WITH A CONTROL (C) LINE WERE USED. TOTAL NET GENETIC IMPROVEMENT FOR BW AND BRW IN S1 AND S2 LINES WERE 31.6, 7.6 AND 28.0 AND 7.3 G, RESPECTIVELY. GENETIC CORRELATIONS BETWEEN 4WK BW AND CARCASS TRAITS (0.85 TO 0.95) AND PHENOTYPIC CORRELATIONS (0.43 TO 0.93) WERE POSITIVELY HIGH IN THE SELECTED LINES. THE MEAN PERCENTAGE OF INBREEDING FOR POPULATION AND INBRED BIRDS IN S1 AND S2 LINES WERE 0.95, 7.75 AND 0.64 AND 11.3, RESPECTIVELY. THE RESULTS SHOWED THAT BW CAN BE USED AS A SELECTION CRITERION TO IMPROVE THE CARCASS TRAITS DUE TO BOTH THE STRONG CORRELATION BETWEEN BW AND CARCASS TRAITS AND SELECTION FOR BW IS EASIER TO RECORD AND ALSO ITS IMPROVEMENT COSTS ARE LOWER.IN THE MEANWHILE, LONG TERM RESPONSE TO SELECTION IS NEEDED TOPRESERVEALLELES FROM THE LOWEST CONTRIBUTED FOUNDERS.

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    APA: Copy

    KHALDARI, M., & FOROUTANIFAR, S.. (2013). CORRELATED RESPONSE TO SELECTION FOR BREAST WEIGHT IN JAPANESE QUAIL. INTERNATIONAL CONFERENCE ON AGRICULTURE AND NATURAL RESOURCES. SID. https://sid.ir/paper/927756/en

    Vancouver: Copy

    KHALDARI M., FOROUTANIFAR S.. CORRELATED RESPONSE TO SELECTION FOR BREAST WEIGHT IN JAPANESE QUAIL. 2013. Available from: https://sid.ir/paper/927756/en

    IEEE: Copy

    M. KHALDARI, and S. FOROUTANIFAR, “CORRELATED RESPONSE TO SELECTION FOR BREAST WEIGHT IN JAPANESE QUAIL,” presented at the INTERNATIONAL CONFERENCE ON AGRICULTURE AND NATURAL RESOURCES. 2013, [Online]. Available: https://sid.ir/paper/927756/en

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