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Effect of genotypes and age on carcass and meat quality characteristics of ram lambs
Other Title(s)
تأثير السلالة و العمر على صفات الذبيحة و جودة اللحوم في الحملان
Joint Authors
Kazim, Isam T.
Sobrinho, A. G. Silva
Purchas, R. W.
Source
Agricultural and Marine Sciences : Research Journal
Issue
Vol. 8, Issue 2 (31 Dec. 2003), pp.73-78, 6 p.
Publisher
Sultan Qaboos University College of Agricultural and Marine Sciences
Publication Date
2003-12-31
Country of Publication
Oman
No. of Pages
6
Main Subjects
Topics
Abstract AR
تهدف هذه الدراسة إلى تقييم صفات الذبيحة و جودة اللحوم لنعاج من سلالة ألرومني و كباش من سلالة ألرومني و East Friesian x (Finn x Texel) و Finn x Dorset في عمرين مختلفين (150 و 300 يوم).
تم تشريح فخذ واحد من كل ذبيحة إلى عضلات و دهون و عظام.
كان وزن و طول الذبائح أعلى في الحملان المولودة من East Friesian x (Finn x Texel) و Finn x Dorset بينما كانت نسبة التصافي متقاربة في كل السلالات.
عند الوزن الثابت للذبيحة، لم توجد فروق معنوية في سمك الدهن و نسبة الدهن في الفخذ في الحملان المولودة من East Friesian و Finn x Dorset.
كانت نسبة العضلات للعظام عند وزن الذبيحة الثابت أعلى في الحملان المولودة من Finn x Dorset و بشكل أقل في East Friesian.
كانت كثافة عضلات الأرجل في عظمة الفخذ أقل (P < 0.05) في الحملان المولودة من Finn x Dorset بالمقارنة إلى المولودة من ألرومني أو East Friesian.
كان للحملان المذبوحة عند عمر 300 يوم أوزانها عالية للذبائح (P < 0.001) و ارتفاعا في نسبة التصافي (P<0.05).
لوحظ إن الحملان المولودة من كباش ألرومني لها عضلات أكثر طراوة من الحملان المولودة من أنواع أخرى.
Abstract EN
The objectives of this study were to evaluate the composition and meat quality characteristics of carcasses from ram lams born to Romney ewes sired by Romney, East Friesian X (Finn X Texel) and Finn X Dorset rams slaughtered at 150 or 300 days of age.
Complete dissections of one leg from each carcass into muscle, fat and bone components were evaluated.
Weight-adjusted carcass weight and length were greater (P<0.05) for lambs sired by East Friesian X (Finn X Texel) and Finn X Dorset rams with no differences in dressing-out percent.
At a constant carcass weight, there was no difference in carcass fatness (fat depth and leg dissectible fat) between lambs sired by East Friesian X (Finn X Texel), and Finn X Dorset rams.
Meat yield and muscle: bone ratio at a constant weight tended to be greater in lambs sired by Finn X Dorset and to a lesser extent in those sired by East Friesian X (Finn X Texel).
Leg muscularity in the femur region was significantly lower (P<0.05) in lambs sired by Finn X Dorset rams than those sired by Romney or East Friesian X (Finn X Texel) rams.
Lambs slaughtered at 300 days had heavier (P<0.001) slaughter and carcass weights and higher (P<0.05) dressing-out percent.
Shear force value was significantly lower (P<0.05) for muscles from lambs sired by Romney than those sired by other genotypes.
The results of the present study indicated that lambs sired by Friesian X (Finn X Texel) and Finn X Dorset rams had less fat and more muscle to bone ratios than those sired by Romney, while lambs slaughtered at 150 days of age were fatter and had shorter carcasses than those slaughtered at 300 days of age at the same carcass weight.
American Psychological Association (APA)
Sobrinho, A. G. Silva& Kazim, Isam T.& Purchas, R. W.. 2003. Effect of genotypes and age on carcass and meat quality characteristics of ram lambs. Agricultural and Marine Sciences : Research Journal،Vol. 8, no. 2, pp.73-78.
https://search.emarefa.net/detail/BIM-209800
Modern Language Association (MLA)
Sobrinho, A. G. Silva…[et al.]. Effect of genotypes and age on carcass and meat quality characteristics of ram lambs. Agricultural and Marine Sciences : Research Journal Vol. 8, no. 2 (Dec. 2003), pp.73-78.
https://search.emarefa.net/detail/BIM-209800
American Medical Association (AMA)
Sobrinho, A. G. Silva& Kazim, Isam T.& Purchas, R. W.. Effect of genotypes and age on carcass and meat quality characteristics of ram lambs. Agricultural and Marine Sciences : Research Journal. 2003. Vol. 8, no. 2, pp.73-78.
https://search.emarefa.net/detail/BIM-209800
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 77-78
Record ID
BIM-209800