Open AccessInvestigating Level of Inbreeding and Its Effects on Productive Traits of Napri X Broiler Chickens
Author(s) -
Adejoh-Ubani Elizabeth Ojoma,
R. O. Okeke,
Edward Christopher Dung,
Biola Lisa Bodamisi,
Suleiman Ibrahim Onotu,
Stanley David Oziegbe,
Danjuma Reuben Tom
Publication year - 2022
Publication title -
asian research journal of agriculture
Language(s) - English
Resource type - Journals
ISSN - 2456-561X
DOI - 10.9734/arja/2022/v15i130150
Subject(s) - inbreeding , sire , control line , biology , selection (genetic algorithm) , zoology , population , broiler , genetics , veterinary medicine , demography , computer science , medicine , transmission line , artificial intelligence , sociology , telecommunications
Inbreeding refers to the mating together of individuals that are more closely related than would be the case if mating was at random. In this study, we investigate inbreeding and its effect on productive traits in NAPRI X broiler chickens. Traits measured were bodyweight and morphometric traits (Neck length, back length, keel length, breast length, thigh length and shank length). Pedigree information which consists of the base generation, 1060 (sire line) and 341 (dam line) birds; in generation 1, there were 565 (sire line selection), 859 (dam line selection), 433 (sire line control), and 592 (dam line control); and in generation 2, there were 595 (sire line selection), 764 (dam line selection), 457 (sire line control), and 654 (dam line control) were used to calculate inbreeding using J.M.P genomics software. Inbreeding significantly (p<0.05) influenced bodyweight and morphometrics in a positive direction (0.020 -1.052) though some of the traits are tending to zero. The trend in inbreeding coefficient was quadratic from the base generation to the second generation with a range of 0.38-0.81 in SLS, 0.41-0.96 in DLS, 0.51-0.80 in SCL and 0.30-1.03 in DCL. It is therefore concluded that there is a gradual build-up of inbreeding in NAPRI X population thus, the use of mate allocation programs is hereby recommended to put a limit or constraint on the level of inbreeding for the future progeny of NAPRI X broiler chickens.