علاقة إشكال الصبغين الجنسي (Sex Chromatin)‎ ببعض الصفات الأيضية بالدم في الأبقار المحلية

Abstract EN

This project was conducted at native fields in Karbala province on 80 adult and milking local cows, the age was 2-8 years old, to study the relationship of sex chromatin (SC) of neutrophils leucocytes on some metabolites traits of blood in local cows, from September to December 2017.

Blood samples were collected from jugular vein and the blood smears were prepared and examined at laboratories of Department of Animal Production Techniques at Al-Musaib Technical college to determine presence of (SC) and its figures and dimensions.

the results showed that the percentage of Sessile Nodule (SN), Small club (SM), Drum stick (D) and Tear drop (T) figures were 54.67, 18.18, 14.12 and 13.02 % respectively.

The overall means of horizontal and vertical axes of nucleus were 14.944 and 14.778 micrometer (µm) respectively, and area of nucleus was 173.250 µm2.

The overall means of the number of lobes were 3.466 lobes.

The overall means of horizontal and vertical axes of (SC) were 1.333 and 1.343 µm respectively and area of (SC) was 1.390 µm2.

The results also showed that significant effect (P< 0.05) of SC figures on glucose, total protein, total cholesterol and triglycerides concentrations.

In conclusion from this project possibility to use figures of SC in rapid selection programs and the construction of genetic improvement plans to develop the performance of local cows.