- 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 Weight at Slaughter in Muscle Tissue Distribution in Carcasses of The Awassi and Karadi Lambs | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 17, Issue 0, 2017, Pages 451-462 | ||
| Authors | ||
| Mahfoodh Kh. Abdullah; Iraq G. Mansoor | ||
| Abstract | ||
| This study was conducted at the farm of the Filed of Animal Production Department College of Agriculture - University of Tikrit, From 17/2 /2014 to 5/6/2014 . Using Thirty lambs ( 15 Awassi and 15 Karadi ) with average age 4 month + 15 days and averaged 22.9±0.27 and 23.83±0.29 kg live body weight were used and reared at the farm of Agriculture collage –University of Tikrit for the period from 17/2 to 5/6/2014. Randomly the lambs divided to six groups by three groups for each breed . Eeach group consists of five lambs . Concentrate diets was providing to animals by 4% of live body weight for whole period of rearing (107 days), wheat straw was provided adlibitum as a roughage diet. Thirty animals were slaughtered at three weights are 30, 37.5 and 45 kg (five animals for each weight) . Karadi lambs record high (P≤0.01) proportion of muscle groups MG1, MG2 and EMG and low (P≤0.05) proportion of muscle groups MG4 , MG8 and MG9 compared with Awassi lambs .The slaughter weight have significant effect on proportion of muscle groups MG1 and EMG that decreased (P≤0.01) in lambs that slaughtered at 45 Kg compared with lambs slaughtered at 30 and 37.5 Kg , muscle group MG2 decreased (P≤0.05) on lambs slaughtered at 45 Kg compared with that 30 Kg , while MG8 and MG9 increased (P≤0.01) with increased slaughter weight from in 30 Kg to 37.5 and 45 Kg . The Rectus Femoris , Vastus Lateralis and Biceps Femoris (P≤0.01) and (P≤0.05) increased proportions in Karadi lambs compared with Awassi , while Semimembranosus record highest (P≤0.01) proportion in Awassi lambs compared with Karadi , proportion of Biceps Femoris and Vastus Lateralis decreased (P≤0.01) in lambs slaughtered at 45 Kg compared with that slaughtered at 30 and 37.5 Kg , the proportion of Infraspinatus ,Supraspinatus and Vastus medialis decreased (P≤0.01) in lambs slaughtered at 37.5 and 45 Kg compared with that slaughtered at 30 Kg , while Biceps Femoris and Gracilis proportion decreased (P≤0.01) increased with slaughter weight. | ||
| Keywords | ||
| Weight at Slaughter; muscle tissue; Distribution; Carcasses; Awassi; Karadi Lambs | ||
|
Statistics Article View: 200 PDF Download: 110 |
||