Farelo de mesocarpo de babaçu (Orbygnia sp.) na terminação de bovinos: composição física da carcaça e qualidade da carne

Abstract

Farelo de mesocarpo de babaçu (Orbygnia sp.) na terminação de bovinos: composição física da carcaça e qualidade da carne.Ciência Rural, v.42, n.7, jul, 2012. Ciência Rural, Santa Maria, v.42, n.7, p.1271-1277, jul, 2012 ISSN 0103-8478

Carcass and meat characteristics from dairy-origin steers fed with diets based on ground pearl millet grain, containing inclusion levels of babassu mesocarp meal

“…These results were similar to those obtained by Cruz et al (2015b), who, while evaluating the addition of 35% of BMB in diets containing different concentrate levels (65 and 71%) of corn, did not find any alteration in the amount of muscle, fat, and carcass bone, demonstrating the feasibility of using small amounts of this byproduct in cattle diet. Further, these results disagree with those obtained by Miotto et al (2012b), who found a linear increase between the ratio of muscle and the increment of BMB in the diet, which was attributed to a decrease in the percentage of carcass fat starting from a BMB level of 25% in the diet. These authors also found that reducing the energy density of the diet with increasing BMB compromised body fat deposition, and therefore, the edible portion of the carcass, which was 7.7% lower in the diets with 100% BMB relative to diets based on corn.…”

“…These authors also found that reducing the energy density of the diet with increasing BMB compromised body fat deposition, and therefore, the edible portion of the carcass, which was 7.7% lower in the diets with 100% BMB relative to diets based on corn. In contrast with the results of Miotto et al (2012b), the results obtained in this study can be justified due to the lower levels of BMB used in diets. However, the results obtained for corn-or millet-based diets were consistent with the results obtained by Silva et al (2015), who despite not having evaluated the tissue composition of the carcass, found that the partial or total replacement of corn by millet did not change the carcass characteristics, which is indicative of the maintenance of body tissue deposition profile.…”

“…The marbling of the meat was not influenced (P > 0.05) by the BMB level included in the diet, and did not differ among diets with BMB and diets with corn or millet, or between diets based on corn and millet (Table 6). These results were similar to those obtained by Miotto et al (2012b) and Cruz et al (2015b), who found that the amount of intramuscular fat in the meat was not influenced by the BMB level in the feedlot diet. Regarding diets based on corn or millet, the results of the present study were consistent with those obtained by Silva et al (2014), who found no change in the marbling of feedlot beef cattle with diets containing 0, 33, 66, and 100% replacement of corn with millet, a fact attributed to the similar energy concentration between these diets.…”

“…According to Müller (1987), meat texture is primarily associated with the age of the animals; young cattle have a finer texture meat than older animals. The results were similar to those obtained by Miotto et al (2012b) and Cruz et al (2015b), who found that the texture of the meat was not influenced by the BMB level in the cattle diet. Similarly, with regard to the millet or corn diets, the results of this study were consistent with those obtained by Silva et al (2014), who found no change in cattle meat texture fed with diets with partial or total replacement of corn by millet, which was attributed to a similar slaughter age.…”

“…This feature is primarily associated with the age of the animals, since the amount of circulating myoglobin increases with advancing age (OURY et al, 2009) and rarely varies with diet (AHEMED et al, 2006). It is worth noting that the results obtained were in agreement with those presented in the literature (MIOTTO et al, 2012b;SILVA et al, 2014;CRUZ et al, 2015b), where it has been shown that the color of the meat was not influenced by total or partial replacement of the corn by BMB or millet in feedlot cattle diet.…”