Turkey muscle growth and focal myopathy

Muscle structure and blood enzyme activity were studied to 16 wk of age in lines of turkeys selected for rapid growth. The body and carcass weights were measured, frozen sections of breast and leg muscles examined, and plasma creatine kinase (CK) levels determined. Muscle weights were usually propor...

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Bibliographic Details
Published in:Poultry science 1990-09, Vol.69 (9), p.1553-1562
Main Authors: Wilson, B.W. (University of California, Davis, CA), Nieberg, P.S, Buhr, R.J
Format: Article
Language:English
Subjects:
ACTIVIDAD ENZIMATICA
ACTIVITE ENZYMATIQUE
Animals
Body Weight
BREAST MUSCLE
CANAL ANIMAL
CARCASSE
CARCASSES
CREATINA QUINASA
CREATINE KINASE
Creatine Kinase - blood
DINDON
ENFERMEDADES MUSCULARES
ENZYMIC ACTIVITY
Frozen Sections
GROWTH RATE
INDICE DE CRECIMIENTO
LIMBS
LINE DIFFERENCES
Male
MEMBRE
MIEMBROS
MUSCLE
Muscle Development
MUSCLES
Muscles - pathology
MUSCULAR DISEASES
Muscular Diseases - etiology
Muscular Diseases - veterinary
MUSCULOS
MYOPATHIE
Organ Size
PAVO
PESO
POIDS
Poultry Diseases - etiology
TAUX DE CROISSANCE
TURKEYS
Turkeys - growth & development
WEIGHT
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Summary:Muscle structure and blood enzyme activity were studied to 16 wk of age in lines of turkeys selected for rapid growth. The body and carcass weights were measured, frozen sections of breast and leg muscles examined, and plasma creatine kinase (CK) levels determined. Muscle weights were usually proportional to BW except for the relatively larger superficial pectoralis (SP) muscles in the most rapidly growing line. Damaged muscle fibers were found in all muscles examined, especially in the SP of the breast, the gastrocnemius (GA), and other muscles of the leg; these damages became more common from 10 to 16 wk of age. There were more degenerating muscle fibers and higher levels of plasma CK in the rapidly growing lines than in a slower growing unselected line. The findings support the idea that a focal myopathy, unrelated to deep pectoral myopathy or to inherited muscular dystrophy of the chicken, is associated with rapid growth of turkeys.
ISSN:0032-5791
1525-3171
DOI:10.3382/ps.0691553