Fatty acid profile, meat quality, and carcass traits of Nellore young bulls fed different sources of forage in high-concentrate diets with crude glycerin

Abstract

-The objectives of this study were to evaluate the effect of forages with different nutritional valuesspecifically, corn silage (CS), sugar cane (SC), and sugar cane bagasse (SB) -in diets with crude glycerin, on carcass traits, meat quality, and fatty acid profile, using young Nellore bulls finished in the feedlot. Thirty young Nellore bulls with an initial average body weight of 416.70±24.74 kg were randomly assigned to three treatments containing different sources of forage. The carcass traits and variables related to meat quality of the Nellore young bulls were not significantly influenced by different sources of forage in diets with crude glycerin. The yellow color index was significantly greater in the fat of animals fed corn silage. Heptadecenoic fatty acid was significantly lower in the meat of animals fed sugar cane bagasse. The sources of forage in diets with crude glycerin did not influence the profile of saturated, monounsaturated, or polyunsaturated fatty acids in the longissimus muscle. Overall, our results indicate that none of the treatments changed the carcass and meat quality traits of Nellore young bulls finished in the feedlot. Thus, sugar cane and sugar cane bagasse could be used in feedlot as a viable forage alternative to corn silage.

Meat quality of lambs fed diets with peanut cake

“…Biodiesel by-products, which have become a relevant economic alternative replacing soybean meal and corn, have been tested for use in animal nutrition. Their effects on carcass traits and meat quality were evaluated when soybean meal were replaced by cakes from oilseeds such as cottonseed (Pereira et al, 2016) and sunflower cake (Oliveira et al, 2015), and also using glycerin replacing ground corn (Barros et al, 2015;Strada et al, 2015;Eiras et al, 2014;Ribeiro, Messana, José Neto, Fiorentini, & Berchielli, 2016).…”

Fatty acid profile and carcass traits of feedlot Nellore cattle fed crude glycerin and virginiamycin

“…The values of RFT (3 to 6 mm) met the requirements of the Brazilian beef industry. Other studies using CG in feedlot diets have reported similar RFT (Carvalho et al, 2014;Favaro et al, 2016;Ribeiro, Messana, Neto, Fiorentini, & Berchielli, 2016).…”

Multivariate relationship among pH, subcutaneous fat thickness, and color in bovine meat using canonical correlation analysis

“…From the interpretation of first canonical correlation (i.e., between U 1 and V 1 ), our canonical loadings and cross-loadings suggest that an increase in SFT may enhance the intensity of red and yellow colors in beef cuts. Carotenoids, which strictly come from the diet in ruminants (Goodwin, 1992), are the main responsible for yellow color in bovine fatness (Dunne et al, 2009;Ribeiro et al, 2016). So, as meat fat is higher when fat thickness increases (Pflanzer and Felício, 2011), yellow (b*) intensity increases as fat thickness increases.…”

“…The pH was measured using a portable pH meter with a penetrating electrode (Fisherbrand TM , Göteborg -Sweden) introduced into the meat cut 2 to 4 cm depth (Dallantonia et al, 2015). The SFT measurements were taken along the ventral length of each meat cut using a Vernier digital caliper (Mitutoyo, Aurora, IL, USA; Ribeiro et al, 2016).…”