Role of Sex Chromatin on performance in the Arabi sheep

Salim Omar Raoof

doi:10.30539/iraqijvm.v41i1.97

Article Details

Role of Sex Chromatin on performance in the Arabi sheep

Authors:

Salim Omar Raoof

Publisher:

University of Baghdad

Journal:

The Iraqi Journal of Veterinary Medicine Vol.41 Issue 1, pp.145-150

Document Type:

Article

Publication Date:

5/2017

Document Language:

English

Document ID (Org No.):

2001378499

pISSN:

2410-7409

DOI:

10.30539/iraqijvm.v41i1.97

Keywords:

Abstract:

  This study was conducted on 122 Arabi sheep belonged to private flock in Erbil plain Kurdistan region- Iraq, from July/ 2014 to August/ 2015 for studying the role of sex chromatin on daily milk production, total milk production, lactation period, fertility rate, prolificacy, birth weight and fertilizes estrous sequences. The repeatability for the studied traits were estimated. The ratio of sex chromatin shapes drum stick, sessile nodule, tear drop and small club were 23.37%, 60.22%, 8.54% and 7.87% respectively.The overall means of daily milk production, total milk production, lactation period, birth weight, fertilize estrous sequences, fertility rate, and Prolificacy were 814.65 g 81.49 kg 103.53 day, 78.10%, 1.60, 3.84 kg and 1.50 respectively. Sex chromatin shapes had significant (P<0.05) effect on all traits studied. The results revealed that the estimation of the Repeatability coefficient for daily milk production was 0.42. It was concluded from this study that production traits (milk production and birth weight) and reproduction (fertility rate, prolificacy and fertilize estrous sequences) performance of Arabi sheep were significantly affected by the shapes and percentage of sex chromatin distribution and measurements. The sex chromatin shapes could be used as a tool for early selection of the elite individuals.

Article Details

Role of Sex Chromatin on performance in the Arabi sheep

Authors:

Salim Omar Raoof

Publisher:

University of Baghdad

Journal:

The Iraqi Journal of Veterinary Medicine Vol.41 Issue 1, pp.145-150

Document Type:

Article

Publication Date:

5/2017

Document Language:

English

Document ID (Org No.):

2001378499

pISSN:

2410-7409

DOI:

10.30539/iraqijvm.v41i1.97

Arabi sheep

Sex chromatin shapes

Milk production and Repeatability

Issues

Article Details

Role of Sex Chromatin on performance in the Arabi sheep

Authors: Salim Omar Raoof

Publisher: University of Baghdad

Journal: The Iraqi Journal of Veterinary Medicine Vol.41 Issue 1, pp.145-150

Document Type: Article

Publication Date: 5/2017

Document Language: English

Document ID (Org No.): 2001378499

pISSN: 2410-7409

DOI: 10.30539/iraqijvm.v41i1.97

Arabi sheep

Sex chromatin shapes

Milk production and Repeatability

Issues

Authors:

Salim Omar Raoof

Publisher:

University of Baghdad

Journal:

The Iraqi Journal of Veterinary Medicine Vol.41 Issue 1, pp.145-150

Document Type:

Article

Publication Date:

5/2017

Document Language:

English

Document ID (Org No.):

2001378499

pISSN:

2410-7409

DOI:

10.30539/iraqijvm.v41i1.97