the social group was low (0.003 to 0.402). However, the
sire did affect behavior in all tests apart from the crush
score (ranging from P = 0.02 to P < 0.001). Correlations
between behavior in the different tests (ranging
from r = 0.21 to 0.54, and P = 0.02 to P < 0.001) apart
from between-flight speed and isolation score indicate
that fearful behavior was consistently shown across assessment
methods. A calm response in the crush score
test was associated with a greater ADG during fattening
(P = 0.05), whereas a calm response during the isolation
test was associated with a greater ADG in cold
carcass weight (P = 0.02). Animals with a calm isolation
score had less tender meat as judged by the sensory
panel (P = 0.03), but no other effects were apparent
between temperament and meat quality measures,
although several tendencies (0.06 ≤ P ≤ 0.10) were
found. Temperament did not appear to relate to meat
quality in this study of frequently handled Bos taurus
genotypes, which is in contrast to other studies using
different beef production systems. Genetic correlations
between temperament and meat quality under these
conditions could, although not measured in this study,
still exist in the absence of phenotypic correlations.
the social group was low (0.003 to 0.402). However, thesire did affect behavior in all tests apart from the crushscore (ranging from P = 0.02 to P < 0.001). Correlationsbetween behavior in the different tests (rangingfrom r = 0.21 to 0.54, and P = 0.02 to P < 0.001) apartfrom between-flight speed and isolation score indicatethat fearful behavior was consistently shown across assessmentmethods. A calm response in the crush scoretest was associated with a greater ADG during fattening(P = 0.05), whereas a calm response during the isolationtest was associated with a greater ADG in coldcarcass weight (P = 0.02). Animals with a calm isolationscore had less tender meat as judged by the sensorypanel (P = 0.03), but no other effects were apparentbetween temperament and meat quality measures,although several tendencies (0.06 ≤ P ≤ 0.10) werefound. Temperament did not appear to relate to meatquality in this study of frequently handled Bos taurusgenotypes, which is in contrast to other studies usingdifferent beef production systems. Genetic correlationsbetween temperament and meat quality under theseconditions could, although not measured in this study,still exist in the absence of phenotypic correlations.
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