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Estimates of repeatability for body weight and conformation traits in three breeds of grower pigs Akporhuarho, P. O. and Obodoagwu, E. Department of Animal Science and Fisheries, Delta State University, Faculty of Agriculture, Asaba, Delta State Corresponding author:okpakophilip@gmail.com; +2340733960396 The aims of the study were to provide estimate of repeatability on the body weight and body traits of the three genotype of grower pigs. Data on 30 growing pigs comprising of three strains, landrace, large white and Duroc of the same age were used to estimate the repeatability ® of body weight (BDW), and linear body traits measured from 2-8 weeks of growth and development. The linear body traits measured was: Head length (HDL), Body length (BDL), body girth (BDG), Ham length (HML), Ear length (ERL) and Neck circumference (NCG). Repeatability estimate for body weight of the three strains were relatively high (0.62, 0.71 and 0.64) for landrace, large white and duroc respectively at 8 weeks of growth. The repeatability values ranged from low to high for other linear body traits (0.2 – 0.52) in the three strains of pigs at early stage of growth. The high repeatability estimates noted for most of the traits imply possible high expected genetic response from inherent transmitting ability of the pigs of traits with moderate's repeatability and the low repeatability estimates recorded for some other traits imply that collection of additional records and improvement of non-genetic factors influencing performance will improve these traits. The three genotype of pigs although were better in terms of development performance, but additional measurements and improvement of non-genetic factors influencing repeatability traits will be needed to realize expected respond from selection. Keywords; Pigs, Body weight, Body traits, Repeatability estimates Introduction Selection that is due to growth traits with the hope of having superior individual with good performance has led to vigorous rapid transformation in protein supply in Nigeria. Growth and development of animal agriculture is a difficult procedure and is subject to a significant extent of genetic control. Serious and significant genetic improvements have been made by animal breeders through the use of powerful selection for specifics biological characteristics, leading to uninterrupted enhancements in body weight, meat production, growth rate, and reduction in the number of days to reach market weight in meat – type of animals (Havenstein et al., 1994b; Ilori et al., 2016). Though, with the progress of powerful genetic selection brought about reduction in the total fitness of contemporary poul t ry species particularly with those categorized by the otherwise desirable characteristics of quick growth and muscle deposit (Deeb and Lamont, 2001). In the advance countries like U.S.A and United Kingdom, so many domestic animals have been selected for traits of economic importance whereas the importation of exotic breeds for crossing with the local stock and rearing is the utmost prevalent practice in the developing countries like Nigeria. These exotic breeds find it very hard to utmost exhibit their worth in the tropical environment due to some adverse conditions, such as heat stress, poor nutrition, poor housing, disease problem most importantly the effect of genotype by environment interaction, consequently the need to select within our indigenous and crossbred species. Genetic