Role of sex chromatin on performance in the local (black) goats

This study was conducted on local black goats belongs to private flock in Erbil plain from period July/ 2014 to April/ 2015. The study included 116 local black goats to study role of sex chromatin on the daily milk production (DMP), total milk production (TMP), lactation period (LP), Fertility rate, Prolificacy, birth weight (BW), fertilize estrous sequences and correlation coefficients between the studied traits and repeatability of (DMP). The ratio of sex chromatin shapes drum stick, sessile nodule, tear drop and small club were%32.05, %52.97, %8.52 and%6.46respectively. The overall means of DMP, TMP, LP, Fertility rate, Prolificacy, BW and fertilize estrous sequences were 577.78g, 49.21kg, 85.70days, %75.74 ,1.35 ,3.01 kg and 1.50respectively. Sex chromatin shapes had significant effect on all of the characterize studied. The results showed that there is significant (P