Table 1. Summary of caprine muscle fiber characteristics

Breed Sex Age Weight (kg) Muscle name Muscle fiber characteristics References
Typing method Type Fiber size (CSA, µm2) Relative fiber area (%) Relative fiber number (%) Fiber density (number/mm2)
Murciano-Granadina (Spanish) Female 2–3.5 years - M. Semimembranosus Myosin heavy chain isoforms distribution I 2,000–2,500 - 40 - Argüello et al. (2001)
I+IIA 2,500–3,000 - 2 -
IIA 2,500–3,000 - 23 -
IIAX 2,500–3,000 - 21 -
IIX 3,000–3,500 - 14 -
Korean native black goat Castrated 18 months 30.93±0.5 (body weight) M. Longissimus dorsi Myosin ATPase reactivity I - 20.14 24.24 - Hwang et al. (2019)
IIA - 31.08 30.80 -
IIB - 48.78 44.96 -
M. Psoas major I - 46.12 44.42 -
IIA - 27.76 28.18 -
IIB - 26.12 27.40 -
M. Semimembranosus I - 28.68 31.28 -
IIA - 18.50 19.00 -
IIB - 52.82 49.72 -
M. Gluteus medius I - 26.14 27.94 -
IIA - 27.98 28.42 -
IIB - 45.88 43.64 -
9 months 14.33±0.5 (body weight) M. Longissimus dorsi I - 19.08 21.74 -
IIA - 41.46 40.24 -
IIB - 39.46 38.02 -
M. Psoas major I - 44.36 45.86 -
IIA - 25.66 26.22 -
IIB - 29.98 27.92 -
M. Semimembranosus I - 26.18 28.48 -
IIA - 33.50 29.22 -
IIB - 40.32 42.30 -
M. Gluteus medius I - 27.78 29.10 -
IIA - 34.62 33.22 -
IIB - 37.60 37.68 -
Kilis (Turkish) - 90 days of weaning age - M. Longissimus dorsi Myosin ATPase reactivity I 59.38 - - 214.3 Sirin (2018)
IIA 14.1 - - 713.1
IIB 14.6 - - 754.1
M. Semimembranosus I 47.7 - - 270.2
IIA 16.9 - - 634.8
IIB 15.2 - - 676.0
Honamli (Turkish) - - M. Longissimus dorsi I 69.21 - - 178.3
IIA 8.9 - - 1,449.0
IIB 12.4 - - 825.2
M. Semimembranosus I 68.8 - - 232.2
IIA 15.9 - - 865.0
IIB 26.3 - - 780.0
Hair (Turkish) - - M. Longissimus dorsi Myosin ATPase reactivity I 60.0 - - 305.6 Sirin (2018)
IIA 9.5 - - 1,637.0
IIB 16.2 - - 720.0
M. Semimembranosus I 38.9 - - 271.1
IIA 7.9 - - 1,464.0
IIB 15.8 - - 652.1
Angora (Turkish) - - M. Longissimus dorsi I 50.95 - - 219.4
IIA 38.3 - - 391.4
IIB 18.3 - - 581.9
M. Semimembranosus I 51.0 - - 206.3
IIA 25.8 - - 523.1
IIB 15.3 - - 671.6
Spanish-Florida Male 30 days 8.47±0.08 (body weight) M. Semimembranosus Myosin heavy chain isoforms distribution I 155.80 24.8 - - Rivero et al. (2022)
II 215.2 75.2 - -
Spanish-Guadarrama I 184.20 27 - -
II 226.5 73 - -
Spanish-Majorera I 178.20 17.9 - -
II 207.5 82.1 - -
Spanish-Palmera I 179.10 20.1 - -
II 231.2 79.9 - -
Spanish-Payoya I 213.40 29.5 - -
II 257.8 70.5 - -
Spanish-Retinta I 187.90 31.9 - -
II 228.2 68.1 - -
Spanish-Tinerfeña I 173.90 21.8 - -
II 199.8 78.2 - -
Spanish-Verata I 199.90 36.7 - -
II 237.7 63.3 - -