“…Therefore, reducing vitamin A intake has been used to enhance intramuscular lipid accumulation and marbling in finishing beef cattle (Arnett et al, 2009; Gorocica-Buenfil, Fluharty, Bohn, Schwartz, & Loerch, 2007; Pickworth, Loerch, & Fluharty, 2012a, 2012b; Smith et al, 2009; Ward, McKinnon, Hendrick, & Buchanan, 2012). However, there are also reports showing that vitamin A deficiency has no effect on lipid metabolism and marbling (Bryant et al, 2010; Gorocica-Buenfil, Fluharty, Bohn, et al, 2007; Gorocica-Buenfil, Fluharty, & Loerch, 2008; Gorocica-Buenfil, Fluharty, Reynolds, & Loerch, 2007; Pickworth et al, 2012a, 2012b). Such discrepancy could be due to the difference in the degree of deficiency, time and duration of deficiency, as well as cattle nutrition and genetics.…”