Authors : H.P. Ngo, P. Figwer, C. Godfraind, M.T. Poirel and M. Franck
Abstract: The objective of this study was to determine the effects of the number of the fiber type and the capillary network on the expression PSE in pork. Samples of muscle triceps brachii, muscle longissimus dorsi, muscle biceps femoris and muscle semimembranosus were taken from pigs exhibiting 1 of the 3 HAL geno-types (NN, Nn, or nn). Histoenzymology and immunohis to chemistry were used to compare the fiber type and the capillary network in these muscles within these different stress susceptibility genotypes. In comparison with the reference muscle (muscle triceps brachii), the combination of a high value of the number of type IIb fibers and a low vascular network showed a primary effect on muscles usually involved during stress.
H.P. Ngo, P. Figwer, C. Godfraind, M.T. Poirel and M. Franck, 2009. The Type IIB Fibers and the Vascular Network are the Tissue Responsible of the PSE Expression in the Muscle Semimembranosus and Longissimus Dorsi in Pork. Research Journal of Animal Sciences, 3: 23-25.