1 Leymaster, K. A.,, "prediction of chemical composition of sheep by use of ultrasound" 61 : 165-172, 1985
2 Edwards, "Using ultrasound liner measurements and live fat thickness estimates to determine the carcass composition of market lambs" 604-610, 1989
3 Stanford, K.,, "Use of ultrasound in prediction of carcass characteristics in lambs" 75 : 185-189, 1995185-189
4 Bourdon, R. M, "Understanding Animal Breeding" Prentice Hall Inc USA 2000
5 Ramsey, "Ultrasonic/ Needle and carcass measurements for predicting chemical composition of lamb carcass" 69 : 3655-3664, 1991
6 Baily, "Ultrasonic scanning and body measurements for predicting composition and muscle distribution in young Holstein X Friesian bulls" 1337-46, 1986
7 Abouheif, M. A.,, "The utilization of rumen content-barley meal in diets of growing lambs" 12 (12): 1234-1240, 1999
8 Simm, "Selection for lean meat production in sheep In progress in sheep and goat research Edited by Speedy Printed in the UK" 1992
9 Simm, "Selection for improved carcass composition in Suffolk sheep" 1990
10 Cameron, "Selection for carcass lean content in a terminal sire breed of sheep" 54 : 379-388, 1992
1 Leymaster, K. A.,, "prediction of chemical composition of sheep by use of ultrasound" 61 : 165-172, 1985
2 Edwards, "Using ultrasound liner measurements and live fat thickness estimates to determine the carcass composition of market lambs" 604-610, 1989
3 Stanford, K.,, "Use of ultrasound in prediction of carcass characteristics in lambs" 75 : 185-189, 1995185-189
4 Bourdon, R. M, "Understanding Animal Breeding" Prentice Hall Inc USA 2000
5 Ramsey, "Ultrasonic/ Needle and carcass measurements for predicting chemical composition of lamb carcass" 69 : 3655-3664, 1991
6 Baily, "Ultrasonic scanning and body measurements for predicting composition and muscle distribution in young Holstein X Friesian bulls" 1337-46, 1986
7 Abouheif, M. A.,, "The utilization of rumen content-barley meal in diets of growing lambs" 12 (12): 1234-1240, 1999
8 Simm, "Selection for lean meat production in sheep In progress in sheep and goat research Edited by Speedy Printed in the UK" 1992
9 Simm, "Selection for improved carcass composition in Suffolk sheep" 1990
10 Cameron, "Selection for carcass lean content in a terminal sire breed of sheep" 54 : 379-388, 1992
11 SPSS, "SPSS for Windows" Standard version. In -10, 1999
12 Wood, "Reducing Fat in Meat Animals" 1990
13 AOAC, "Official Methods of Analysis Association of Official Analytical Chemist" 1995
14 Lawrence, T., "Growth of Farm Animals" 1997
15 Osfoori, R., "Genetic relationships of Iranian sheep breed using biochemical genetic marker" 39 (39): 33-46, 1996
16 Emamjomeh, N.,, "Fatty acids content of fat-tail tallow and dissect able muscle fat in three fat-tailed Iranian sheep" 1997
17 Miles, "Estimation of lamb carcass composition from measurements of the speed of ultrasound in the soft tissues of live animal and carcass" 452-456, 1991
18 Assadi-Moghadam, "Effect of age and sex on growth rate and carcass characteristics of fattening lambs University of Tehran" 1993
19 Farid, "Carcass physical and chemical composition of three fat-tailed breeds of sheep" 109-120, 1991
20 Willson, "Application of ultrasound for genetic improvement" 70 : 973-983, 1992
21 Kiyanzad, M. R, "Application of ultrasound and body measurements for prediction of carcass physical and chemical components of live Iranian sheep" 1999