The whole corn germ (WCG), due to its desirable nutritional characteristics, has been studied as feed for ruminants. This study aimed to evaluate the effects of WCG inclusion as a linoleic acid source in diets for feedlot lambs on carcass characteristics, physicochemical composition, sensory attributes, and fatty acid profile of the meat. Forty non-castrated, crossbreed Dorper x Santa Inês lambs were distributed in a completely randomized design to evaluate the inclusion levels (0, 30, 60, 90, and 120 g/kg dry matter (DM)) of whole corn germ (WCG) in the diet. The dietary inclusion of WCG did not influence (p > 0.05) the weight gain and carcass characteristics, with the exception of the subcutaneous fat thickness (p < 0.01), which was higher in animals fed diets with higher levels of WCG. Lightness (L *; p = 0.04), yellowness (b *; p < 0.01), shear force (p = 0.04), linoleic fatty acid concentrations (p = 0.03), and total polyunsaturated fatty acids (p = 0.04) had a quadratic increase due to WCG inclusion in the diets. The use of up to 120 g/kg DM of WCG in lamb diets does not affect the carcass characteristics, physicochemical composition, and sensory attributes of the meat. Despite this, the best polyunsaturated fatty acid profile in lambs’ meat is obtained using 76.7 g/kg DM of WCG.

中文翻译：

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亚油酸来源的整个玉米胚芽对肥育羔羊Car体特性和肉品质的影响

整个玉米胚芽（WCG）由于其理想的营养特性，已经被研究用作反刍动物的饲料。这项研究的目的是评估饲育羊肉日粮中作为亚油酸源的WCG含量对肉的s体特性，理化成分，感官特性和脂肪酸分布的影响。随机分配了40只未-割的Dorper x SantaInês杂种羔羊，以评估整个玉米胚芽（WCG）的夹杂水平（0、30、60、90和120 g / kg干物质（DM））。在饮食中。除了皮下脂肪厚度（p > 0.05）外，饮食中加入WCG不会影响体重增加和characteristics体特性（p > 0.05）。<0.01），在饲喂高水平WCG日粮的动物中更高。亮度（L *; p = 0.04），黄色（b *; p <0.01），剪切力（p = 0.04），亚油酸脂肪酸浓度（p = 0.03）和总多不饱和脂肪酸（p = 0.04）具有饮食中加入WCG导致二次增加。在羔羊日粮中使用高达120 g / kg DM的WCG不会影响肉的car体特征，理化成分和感官特性。尽管如此，使用76.7 g / kg DM的WCG仍可获得羊肉中最佳的多不饱和脂肪酸谱。