SINTITUL-6
Many studies take variations in muscle fibre type population as a tool, which contributes to measure the meat quality according to selection and diets of the meat animal species. The aim of this research was to determine the fibre type populations in different llama muscles as a useful preliminary s...
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| Autores principales: | , , , , , |
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Español |
| Publicado: |
Universidad de Buenos Aires. Facultad de Ciencias Veterinarias.
2004
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| Acceso en línea: | http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=pveterinaria/invet&cl=CL1&d=HWA_4532 https://repositoriouba.sisbi.uba.ar/gsdl/collect/pveterinaria/invet/index/assoc/HWA_4532.dir/4532.PDF |
| Aporte de: |
| Sumario: | Many studies take variations in muscle fibre type population as a tool, which contributes to measure the meat quality according to selection and diets of the meat animal species. The aim of this research was to determine the fibre type populations in different llama muscles as a useful preliminary study for any future approach about meat quality in this species. Samples from llama biceps femoris, gluteus medius, rectus femoris and semitendinosus muscles, were staining by myofibrillar adenosine triphosphatase for determining the fibre type population. Results show that I, IIA, IIX, IIB, IIXB, IIXA and IIC have the following distribution: 17.98, 16.29, 31.46, 27.53, 6.18 y 0.56 %; 19.16, 22.16, 37.13, 18.56, 1.20, 0.30 y 1.50 %; 20.12, 20.12, 37.02, 8.76, 9.52, 3.53 y 0.92 %; 13.56, 9.31, 41.50, 26.72, 8.70, 0.20 % respectively (X2 ±95%). The fibre type distribution is linked to pondered muscles. Rectus femoris and gluteus medius muscles have a higher oxidative profil that other considered muscles, and less quantity of the IIB type fibres. This muscle fibre population give them a better condition about taste, juiceless and pH postmortem while they could have an unsuccessful performance during tenderisation process. |
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