Genetic parameter estimation of semen characteristics and sire selection traits for Bonga sheep under the community-based breeding program

Pursuing the community-based breeding program (CBBP) selection of sire for Bonga sheep estimated value by six months body weight, testicle size, and physical characteristics were used as criteria. A study was conducted to investigate association traits with semen estimate their heritability. Data collected from a total 101 adult sires sheep. Semen using artificial vagina processed qualities. The variance components genetic parameters multivariate analysis animal model restricted maximum likelihood method WOMBAT software. Six different models compared dataset best-fit selected Akaike information Criteria (AIC). Direct additive effect (model 1) current dataset. direct heritability studied 0.23 ± 0.122, 0.13 0.129, 0.110, 0.09 0.036, 0.37 0.155, 0.11 0.162 volume, mass motility, concentration, spermatozoa, scrotum circumference, respectively. Moderate weight volume indicated that further breed improvement through is possible. Low good quality could be obtained improving environmental management sire. Both circumference have high positive correlation sperm concentration but negatively correlated spermatozoa production. Given strong between characteristic qualities, associated response anticipated.