Linseed oil supplemented concentrate fed to Brahman crossbred fattening steers on carcass quality traits and intramuscular fatty acid profiles

摘要

The objective of this study was to determine the linseed oil supplemented concentrate fed to Brahman crossbred fattening steers on carcass quality trait and intramuscular fatty acid (FA) profiles. All steers were fed 14% CP concentrate. The treatments included: (1) 7 kg/d concentrate; (2) 4 kg/d concentrate supplemented with 200 g/d palm oil (PO); (3) 4 kg/d concentrate supplemented with 100 g/d PO and 100 g/d linseed oil (LSO); and (4) 4 kg/d concentrate supplemented with 200 g/d LSO. The animals in the treatment 1 were fed ad libitum rice straw (RS), whereas the animals in other treatments were fed ad libitum fresh grass (FG). Dietary treatments had no effect on nutrient intake while oil supplement decreased dry matter intake (DMI). Inclusion of LSO did not negatively affect carcass quality, but increasing amount of LSO supplement increased the n-3 fatty acids and lowered the n-6-3 ratio in beef.