Ion method, the content material of PUFAs (C18:two, C18:3, C20:four, C20:5 EPA) was considerably (p 0.01) GLPG-3221 Cancer greater in intramuscular fat than within the remaining fat depots. At both levels of fattening intensity, subcutaneous fat was characterized by a significantly (p 0.01) higher content of CLA than intramuscular fat. The concentration of PUFAs inside the analyzed fat depots was not affected by fattening intensity, whereas the proportions ofAnimals 2021, 11,6 ofC 22:five and C 22:6 had been higher inside the fat of intensively fattened bulls than semi-intensively fattened animals. 4. Discussion Within this study, intensively fattened bulls had larger reside weight at slaughter and, consequently, higher hot carcass weight and dressing percentage, compared with semiintensively fattened animals, which corroborates the findings of quite a few authors [2,23]. Greater fattening intensity, such as a greater proportion of concentrate inside the ration, leads to greater average every day achieve. In each production systems, bulls were slaughtered at 18 months of age, however the carcasses of semi-intensively fattened animals tended to have greater fat cover and intramuscular fat content. Within the present experiment, similarly to a study by Moholisa et al. , larger muscle fat content in cattle corresponded to fatter carcasses as a result of feeding high-energy diets. Rodr uez-V quez et al.  observed that cattle grazing pasture had reduce intramuscular fat content material than these fed grain or concentrate, which is constant together with the findings of Mezgebo et al.  who suggested that the eating plan based on concentrates increases intramuscular fat content material. Even so, the experimental animals inside the cited study differed in age and final physique weight from those analyzed within the current experiment. These components may reflect the relative patterns of adipose tissue deposition, i.e., subcutaneous depot just before intramuscular depot. As outlined by Noci et al. , feeding intensity is one of the important elements influencing the lipid composition of meat, and also a lower inside the power density of diets may well minimize muscle fat content, therefore improving the good quality of beef. Differences within the proportions of FA groups, based on feeding intensity, observed within this study, had been also reported by French et al. . However, the cited authors identified that a decrease inside the volume of concentrate and a rise in the volume of haylage within the ration for steers led to a rise in the variety of SFAs in intramuscular fat. In line with Turk and Smith , a greater percentage of SFAs in beef carcasses might outcome from higher C18:0 content and VU0152099 Formula reduced activity of 9-destructase. De la Fuente et al.  demonstrated that intensive production systems, where cattle are fed concentrate-based diets, contribute to a considerable enhance within the concentrations of n-6 PUFAs in beef, and that beef made in extensive systems has low PUFA levels and higher SFA concentrations, which can be partially constant together with the benefits in the present study. Raes et al.  also located that the proportions of FA groups in bovine fat might be determined by the diet plan. Fresh grass (pasture) and grass silage are richer sources of n-3 PUFAs and have a far more favorable n-6/n-3 PUFA ratio than concentrate, which can bring about a rise in these parameters in carcass fat in cattle fed greater amounts from the former diets. Such a partnership was not observed inside the present study. It appears that the fact that feeding intensity had no important effect around the proportions of FA groups in th.