02261naa a2200325 a 450000100080000000500110000800800410001902400290006010000200008924501680010926000090027730000100028652013150029665000130161165300160162465300190164065300240165965300150168365300140169870000220171270000200173470000190175470000170177370000230179070000210181370000230183470000180185770000230187577300370189821515132023-04-11       2023    bl uuuu     u00u1 u    #d7 a10.3390/ani130405682DOI1 aSILVA, C. S. DA  aNutritional quality of milk fat from cows fed full-fat corn germ in diets containing cactus opuntia and sugarcane bagasse as forage sources.h[electronic resource]  c2023  a13 p.  aWe evaluated the performance, milk composition, and milk fatty acid profile of cows fed diets composed of cactus cladodes (Opuntia stricta [Haw.] Haw), sugarcane bagasse and increasing levels of full-fat corn germ (FFCG). We hypothesized that ground corn can be effectively replaced by FFCG when cactus cladodes and sugarcane bagasse are used as forage sources. The cows were randomly distributed into two 5 × 5 Latin Squares and fed five diets in which ground corn was progressively replaced with full-fat corn germ (FFCG; 0%, 25%, 50%, 75%, or 100% of substitution). Adding FFCG to the diet increased milk production and milk fat content and reduced milk protein content. Overall, FFCG reduced the proportion of saturated FAs and increased mono- and polyunsaturated FAs in milk, including CLA isomers. In addition, activity indices of stearoyl-CoA desaturase were reduced by increasing levels of FFCG. We conclude that the substitution of corn for FFCG in diets based on cactus cladodes and sugarcane bagasse positively modifies the FA profile of milk and could add commercial value to milk products (e.g., CLA-enriched milk). In addition, the milk fat response indicates that the basal diet was favorable to the rumen environment, preventing the trans-10 shift commonly associated with milk fat depression.  aMilk fat  aCo products  aCrossbred cows  aFat supplementation  aOpuntia sp  aSemi arid1 aGAMA, M. A. S. da1 aSILVA, E. A. M.1 aRIBEIRO, E. F.1 aSOUZA, F. G.1 aMONTEIRO, C. C. F.1 aMORA-LUNA, R. E.1 aOLIVEIRA, J. C. V.1 aSANTOS, D. C.1 aFERREIRA, M. DE A.  tAnimalsgv. 13, n. 4, 568, 2023.