INHERITANCE OF GROWTH AND LACTATION PARAMETERS IN YANKASA SHEEP

Estimates of genetic and phenotypic parameters for lactation records 143 ewes growth performance 134 lambs were examined using the paternal half-sib mixed model analysis. Heritability (h2) estimates curve 1.4, 0.3, 0.2 0.5 a (level general production), b (pre-peak curvature), c (post-peak curva-ture) total (T). The correlations between various mostly positive moderate in magnitude. For parameters, h2 0.3 0.7 obtained birth weight (BWT) 90- day weaning (WWT) respectively. these traits In conclusion this study indicate that improvement milk production Yankasa sheep through selection is possible. Similarly, magnitude estimate BWT WWT probably indicates based on will improve WWT. Furthermore, preliminary, culling also