- 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
EFFECT OF MATING RATIO ON EGG PRODUCTION, FERTILITY AND HATCABILITY OF JAPANESE QUAIL (Coturnix coturnix japonica | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 14, Issue 5, 2009, Pages 0-0 | ||
| Authors | ||
| W. M. Razuki; F. M. Alkhilani; S. H. Farhan; S. T. Kadhim | ||
| Abstract | ||
| An experiment was carried out to investigate the effect of male to female's sex ratios on percentage of egg production (EP), fertility and hatchability of Japanese quail. A total of 240 female hens and 64 males at 9 weeks of age were used. All hens were assigned on 20 pens with 12 hens per pen (4 replicates per treatment). Males were mated at five different ratios as follows: treatment one, 1 male to 12 females, treatment two, 1 male to 6 females, treatment three, 1 male to 4 females, treatment four, 1 male to 3 females and treatment five, 1 male to 2 females. Results showed a significant increasing in EP for treatment that contained 1 male to 12 females. The EP was ranged from 80.9% for period 9-12 week of age to 82.9% for period 25-28 week of age, with average 82.8%. Whereas, it was lowest in treatment five (1 male to 2 females) and ranged from 75.2% for period 9-12 week of age to 69.8% for period 25-28 week of age, with average 75.2%. The other treatments were in middle with two treatments mentioned above. A significant reduction in fertility was observed for ratio 1 male to 2 females only at 26 week of age. While highest fertility was obtained with a ratio of 1 male mated to 4 females or 6 females. Hatchability of fertile eggs or total set egg was not affected by sex ratios. It is concluded to use 1 male to mated 12 females without negative adversely effect on fertility and hatchability and had an increasing in EP. That’s mean it is not only preferable with respect to animal welfare but also more economical than conventional multi-male groups with a sex ratio of 1 male to 2 or 3 females because of reduction in culling and died birds and reduction in costs for food per EP. ________________________________________ | ||
|
Statistics Article View: 207 PDF Download: 2 |
||