MUSCLE FIBRE CHARACTERISTICS OF COMMERCIAL BROILER AND INDIGENOUS CHICKEN
DOI:
https://doi.org/10.51791/njap.vi.8724Keywords:
Arbor Acre, Ross 308, Indigenous, Spent layer, Muscle fibre traitsAbstract
Meat quality is mainly determined by the muscle’s fibre number, cross-sectional area (CSA) and fibre types. An experiment was conducted to assess the muscle fibre traits of commercial broiler and indigenous chicken breeds. Matured commercial and indigenous chickens were randomly assigned five treatment groups comprising Arbor Acre (T1), Noiler (T2), Ross 308 (T3), indigenous (T4) and ISA Brown spent layer (T5). The selected chickens were slaughtered and allowed to bleed through while fresh meat samples were collected from the thigh muscle of each treatment and replicated thrice. Samples were evaluated for muscle fibre diameter, total number of fibre (TNF), fibre length, muscle density and cross-sectional area of fibre (CSAF). Data were subjected to One-Way Analysis of Variance using IBM SPSS (2000) version 25. The results revealed significant (p < 0.05) differences in all the parameters examined. Noiler and ISA Brown spent layer chickens exhibited significantly larger fibre diameters compared to the other breeds. Elevated (p < 0.05) values of TNF were observed for Ross 308 and indigenous chicken which was similar to (p > 0.05) to that of spent layer compared to other breeds. A higher value of fibre length was recorded for spent layer compared to others with the same trends observed for muscle density and CSAF. Hence, meat from ISA Brown spent layer and indigenous chicken has superior meat quality suitable for product development while Ross 308 had superior quantity as reflected by the fibre density, fibre length, TNF and CSAF.