02229naa a2200289 a 450000100080000000500110000800800410001902200140006002400520007410000270012624501580015326000090031130000170032052013230033765000200166065300120168065300280169265300270172065300160174770000230176370000170178670000190180370000230182270000180184570000260186377300500188921328062021-09-28 2021 bl uuuu u00u1 u #d a1559-07207 ahttps://doi.org/10.1007/s12011-020-02543-82DOI1 aMARCANO DE HIGUERA, J. aEffect of genetic crossing and nutritional management on the mineral composition of carcass, blood, leather, and viscera of sheep.h[electronic resource] c2021 ap.4133-4144. aThe effect of genetic crossing and nutritional management on weight gain and the concentration of minerals and trace elements in the carcass, blood, leather, and viscera of sheep were evaluated. Several statistical strategies were used to evaluate the different elemental composition characteristics of pure breed animals, i.e., White Dorper (ODO), Ile de France (OIF), Texel (OTX), and Santa Inês (OSI), as well as their crossbreeds 1/2 White Dorper and 1/2 Santa Inês (ODS), 1/2 Ile de France, and 1/2 Santa Inês (OIS), 1/2 Texel × 1/2 Santa Inês (OTS). Three different diets were evaluated AL (ad libitum), R75, and R63 (75 and 63 g of dry matter/kg of the animal metabolic weight, respectively). Levels of Ca, Cu, Fe, K, Mg, Mn, P, S, and Zn were determined by inductively coupled plasma optical emission spectrometry (ICP OES). The concentration of inorganic elements in the different body components was not affected by the diet (P > 0.05), and OTX and OTS were the breeds with the highest weight gain. Random forest importance models demonstrated that Zn in the carcass, K, Ca, and Zn in blood, and K in leather are most associated with separating the different evaluated sheep?s breeds. Crossbreeding the native Santa Inês breed with sheep of exotic breeds produces animals well adapted to confinement. aSmall ruminants aICP OES aMachine learning models aMineral concentrations aSanta Inês1 aSILVA, A. B. S. da1 aHENRIQUE, W.1 aESTEVES, S. N.1 aBARIONI JUNIOR, W.1 aDONATI, G. L.1 aNOGUEIRA, A. R. de A. tBiological Trace Element Research, jan. 2021.