caa a22 4500 388061162 CHVBK 20180307125121.0 cr unu---uuuuu 161130e199802 xx s 000 0 eng 10.1017/S1357729800008948 doi S1357729800008948 pii (NATIONALLICENCE)cambridge-10.1017/S1357729800008948 Influence of weaning on carcass quality, fatty acid composition and meat quality in intensive lamb production systems [Elektronische Daten] This study investigated the effects of weaning and sex on various aspects of production and quality characteristics in 22 male and 18 female lambs of the Rasa Aragonesa local meat breed. Half the lambs were weaned (W) at 38 to 40 days and half were left unwearied (UW). Both groups were given ad libitum concentrates and cereal straw. Average farm weight was 22·1 kg at 78·3 days. Live-weight gain was significantly different between sexes but not between W and UW lambs. Dressing proportion was higher in UW lambs. Significant differences in fatness were found between W and UW lambs and between sex of lambs. Among the meat quality traits, W lambs had redder and UW lambs paler meat judged by colour a* and haem pigment concentration. No statistical differences were found in the other traits except flavour intensity, which was higher in UW (66·8) than in W (63·6) lambs on a 1 to 100 scale. All other eating quality aspects, in grilled m. longissimus lumborum slices, tended to be higher in UW lambs. The fatty acid composition of subcutaneous and intramuscular fat depots differed significantly (intramuscular fat was more unsaturated and polyunsaturated). There were also differences between W and UW lambs in subcutaneous fat (higher unsaturated in W lambs). However in intramuscular fat composition only differences in polyunsaturated fatty acids (higher in UW lambs), but not in total unsaturated or saturated, were observed. Tatty acids of less than C16 chain length were higher, in both fat depots, in UW lambs than in W lambs reflecting greater incorporation of milk fatty acids. Palatability characteristics were not closely associated with fatty acid composition except that flavour intensity was correlated with total saturated fatty acids. Copyright © British Society of Animal Science 1998 carcass quality nationallicence fatty acids nationallicence lambs nationallicence meat quality nationallicence weaning nationallicence Sañudo C. Division of Food Animal Science, University of Bristol, Langford, Bristol BS18 7DY Sierra I. Producción Animal, Facultad de Veterinaria, 50.013 Zaragoza, Spain Olleta J. L. Producción Animal, Facultad de Veterinaria, 50.013 Zaragoza, Spain Martin L. Producción Animal, Facultad de Veterinaria, 50.013 Zaragoza, Spain Campo M. M. Producción Animal, Facultad de Veterinaria, 50.013 Zaragoza, Spain Santolaria P. Producción Animal, Facultad de Veterinaria, 50.013 Zaragoza, Spain Wood J. D. Division of Food Animal Science, University of Bristol, Langford, Bristol BS18 7DY Nute G. R. Division of Food Animal Science, University of Bristol, Langford, Bristol BS18 7DY Animal Science Cambridge University Press 66/1(1998-02), 175-187 1357-7298 66:1<175 1998 66 ASC https://doi.org/10.1017/S1357729800008948 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1357729800008948 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sañudo C. Division of Food Animal Science, University of Bristol, Langford, Bristol BS18 7DY NATIONALLICENCE 700 1- Sierra I. Producción Animal, Facultad de Veterinaria, 50.013 Zaragoza, Spain NATIONALLICENCE 700 1- Olleta J. L. Producción Animal, Facultad de Veterinaria, 50.013 Zaragoza, Spain NATIONALLICENCE 700 1- Martin L. Producción Animal, Facultad de Veterinaria, 50.013 Zaragoza, Spain NATIONALLICENCE 700 1- Campo M. M. Producción Animal, Facultad de Veterinaria, 50.013 Zaragoza, Spain NATIONALLICENCE 700 1- Santolaria P. Producción Animal, Facultad de Veterinaria, 50.013 Zaragoza, Spain NATIONALLICENCE 700 1- Wood J. D. Division of Food Animal Science, University of Bristol, Langford, Bristol BS18 7DY NATIONALLICENCE 700 1- Nute G. R. Division of Food Animal Science, University of Bristol, Langford, Bristol BS18 7DY NATIONALLICENCE 773 0- Animal Science Cambridge University Press 66/1(1998-02), 175-187 1357-7298 66:1<175 1998 66 ASC CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge