Analysis of some skeletal muscles in lambs of different genotype by the distribution frequency of muscle fibres diameter
2000
Gjurcevic-Kantura, V. | Zobundzija, M. | Mihelic, D. | Mikulec, K. | Susic, V. | Pipic, R. | Serman, V. | Mikulec, Z. | Vucemilo, M. (University of Zagreb (Croatia). Veterinary Faculty)
Samples of m. gluteobiceps, m. longissimus lumborum, m. psoas major, m. semitendinosus, m. semimembranosus, m. quadriceps femoris (m. rectus femoris) and m. triceps brachii (caput longum) of male 9 male lambs 71 days old, originating from the ewes crossbreds between the Istrian Pramenka breed and Sardinian rams and Sardinian (S), domestic Merino-Wuertemberg (W) and East Friesian (EF) rams, were investigated by the distribution frequency of muscle fibre diameters with the shift of 5.0 micro m. The frequency distribution pointed out the prevalence of fibres of smaller diameter in muscles of W and EF crossbreds having higher body weight and meatiness. The comparison between W and EF crossbreds having similar body weight and meatiness showed that smaller fibre diameters were prevailing in 5 muscles of EF crossbreds and 2 muscles in W crossbreds
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