- 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 DIETARY SUPPLEMENTATION WITH GIBBERLLIC ACID GA3 ,VITAMIN D3 AND FENNEL SEEDS ON SOME PRODUCTIVE PARAMETERS OF AGED LAYING HENS | ||
| iraqi poultry sciences journal | ||
| Article 1, Volume 5, Issue 1, 2010, Pages 57-72 | ||
| Authors | ||
| Dhia. K. Ibrahim; Waleed M. Razuki; Hala AH. M. Ali | ||
| Abstract | ||
| This experiment was conducted to investigate the effects of supplementation the gibberellic acid GA3 , vitamin D3, GA3 + D3 and fennel seeds to aged laying hens diets on some productive performance and egg shell relative weight and egg shell thickness. Four hundred and fifty Lohmann Brown laying hens at 73 weeks of age were used. Hens were randomly assigned to five treatments and each treatment contained three replicates (30 hens /replicate). The experiment was included two periods: the first period was continuous for 8 weeks (73-80 weeks), where hens fed one of five diets as follow: T1 control) basal diet ME 2800 Kcal/kg diet, CP 15.1% , T2) supplemented with 40 mg GA3/ kg diet , T3) supplemented with 500 IU vitamin D3 / kg diet , T4) supplemented with 40 mg GA3+ 500 IU vitamin D3 / kg diet and T5) supplemented with 0.3% fennel seeds, while in the second period of experiment (recovery period) all the hens were fed on the control diets (T1) for 4 weeks (81-84 weeks). The results were show significant improvement in egg production (H.D%),egg mass and feed conversion ratio, in some treatment and recovery periods and of treatments T3, T4 , T5 whereas, feed intake and egg weight were decreased significantly in some treatment and recovery periods.Relative weight of eggshell and shell thickness was increased significantly in groups of hens fed on treatment diets during both periods (treatment and recovery). We can concluded that there were some productive parameters improvements especially in relative weight of eggshell and shell thickness of aged laying hens. | ||
|
Statistics Article View: 77 PDF Download: 22 |
||