- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Estimate of sires transmitting ability for average clutch length and itﹸs number in a stock of white Leghorn chickens | ||
| iraqi poultry sciences journal | ||
| Article 1, Volume 2, Issue 2, 2007, Pages 204-213 | ||
| Authors | ||
| Al-Soudi K.A; Al - Nedawi A. M; Al - Samarai F. R; Al - Ganabi Th. K .K | ||
| Abstract | ||
| Data were collected from 336 chicks belonged to 24 sire and 131 dam. This study was conducted at the poultry farm of Animal Resources Department, College of Agriculture, Baghdad University, Abu – Ghraib, over a period from Jan. 2005 to Sep. 2005. The aim of this research is to estimate transmitting ability of sires for average cycle length and number of cycles for egg yield. The General Linear Model (GLM) within SAS program was used to study the effect of some fixed effect which included (hatch and age at sexual maturity) on average cycle length and number of cycles for egg yield. Component of variance for the random effects was estimated by MIVQUE (Minimum Variance Quadratic Unbiased Estimation ). The heritability of average clutch length, number of clutch length were 0.18 and 0.20 respectively. Estimated transmitting ability of sires for average clutch length ranged from – 0.96 to 0.58 day, whereas the corresponding estimates for number of clutch length being – 1.49 and 3.28 . | ||
|
Statistics Article View: 93 PDF Download: 46 |
||