This study investigated the effect of triticale dried distillers' grain with solubles (DDGS), flax (FS) and sunflower (SS) seed on growth and the fatty acid profile of subcutaneous (SQ) fat in individually housed steers (n = 15 per diet) fed ad libitum (DM basis); (1) control (CON) 90 % barley grain + 10 % barley silage; or substitution of barley grain for: (2) 30 % DDGS; (3) 10 % FS; (4) 30 % DDGS + 8.5 % FS; (5) 10 % SS and (6) 30 % DDGS + 8.5 % SS. Oilseeds in the combination diets were reduced to maintain diet lipid levels below 9 % DM and to determine if favorable changes in the fatty acid profile could be maintained or enhanced at reduced levels of oilseed. Plasma and SQ fat biopsies were collected at 0, 6, and 12 weeks. Inclusion of DDGS decreased (P < 0.05) average daily gain, feed conversion and backfat thickness. Feeding FS increased (P < 0.05) plasma ALA compared to CON and SS and consistently increased (P < 0.01) ALA and non-conjugated and non-methylene interrupted dienes (NCD), whereas SS tended to decrease ALA in fat. Inclusion of DDGS with FS further increased (P < 0.02) ALA and decreased (P < 0.05) NCD and 18:1-t10 in fat. The fact that the levels of n-3 fatty acids in SQ fat from steers fed DDGS + FS were higher than those obtained with FS alone, has obvious benefits to the practical cost of favorably manipulating fatty acid profiles in beef.
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Fourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China
Zhang, Wei
Fu, Feng
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Fourth Mil Med Univ, Dept Physiol, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China
Fu, Feng
Tie, Ru
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Fourth Mil Med Univ, Sch Basic Med Sci, Expt Teaching Ctr, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China
Tie, Ru
Liang, Xiangyan
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Fourth Mil Med Univ, Sch Basic Med Sci, Expt Teaching Ctr, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China
Liang, Xiangyan
Tian, Fei
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Fourth Mil Med Univ, Sch Basic Med Sci, Expt Teaching Ctr, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China
Tian, Fei
Xing, Wenjuan
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Fourth Mil Med Univ, Dept Physiol, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China
Xing, Wenjuan
Li, Jia
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Fourth Mil Med Univ, Dept Physiol, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China
Li, Jia
le Ji, Le
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Fourth Mil Med Univ, Dept Physiol, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China
le Ji, Le
Xing, Jinliang
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Fourth Mil Med Univ, Sch Basic Med Sci, Expt Teaching Ctr, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China
Xing, Jinliang
Sun, Xin
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Fourth Mil Med Univ, Dept Pediat, Xijing Hosp, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China
Sun, Xin
Zhang, Haifeng
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Fourth Mil Med Univ, Sch Basic Med Sci, Expt Teaching Ctr, Xian 710032, Peoples R ChinaFourth Mil Med Univ, Dept Cardiol, Tangdu Hosp, Xian 710032, Peoples R China