<b>Feedlot performance, carcass characteristics and meat quality of Nellore and Canchim bulls fed diets supplemented with vitamins D and E</b> - doi: 10.4025/actascianimsci.v35i4.18801

Abstract

ABSTRACT. This experiment was conducted at Unesp feedlot facility, campus of Botucatu, and aimed to evaluate the supplementation of D and E vitamins on animal performance, carcass characteristics and meat quality of yearling bulls finished in feedlot. Thirty-six 7-mo-old yearling bulls, 18 Nellore (NEL) and 18 Canchim (CAC), with average initial body weight of 234.53 ± 22.15 and 248.13 ± 34.67 kg, respectively, were fed for 126 days. Nine NEL and nine CAC yearling bulls were daily supplemented with 1300 IU of vitamin E and 7.5 x 10 6 IU of vitamin D 3 for 67 days and 10 days before slaughter, respectively. One day before slaughter, blood samples were collected for evaluation of Ca concentration. After chilling, Longissimus muscle (LM) samples were collected for analysis of shear force, myofibrillar fragmentation index, total lipids, D and E vitamins concentrations, and meat shelf life. An increased level of plasma Ca (p < 0.01) was observed due to vitamin supplementation, showing the action of vitamin D on the animal organism. However, there was no effect (p > 0.05) of vitamins D and E on feedlot performance, carcass characteristics and meat quality.

Comparing Blend of Essential Oils Plus 25-Hydroxy-Vit-D3 Versus Monensin Plus Virginiamycin Combination in Finishing Feedlot Cattle: Growth Performance, Dietary Energetics, and Carcass Traits

“…High-level short-term (i.e., 10 days) supplementation with vitamin D3 prior to slaughter has been suggested as a means for increasing calcium uptake, thereby enhancing meat tenderness [59]. However, effects on meat tenderness were not appreciable [60] when D3 was supplemented at high levels for longer durations (i.e., 67 days). More recently [49,61], the importance of additional vitamin D3 supplementation for livestock health and productivity was highlighted.…”

Efeito do Enterococcus faecium e Saccharomyces cerevisiae na resposta imunológica, parâmetros hematológicos e ganho de peso de bezerros alimentados com silagem de milho.

“…Tal entrave costuma ser solucionado pelo uso de imunoestimulantes injetáveis, como as vitaminas E ou ADE, tanto no intuito de aumentar a produtividade (2,3), como para prevenir ocorrência de doenças, já que estimula os processos de fagocitose e metabolismos oxidativo neutrofílico (4,5).…”

Influência da suplementação de vitaminas A, D e E na função imune de bezerros alimentados com dieta á base de feno capim tifton (Cynodon spp.)

“…O uso de suplementação com vitaminas para bovinos, especialmente A, D e E, é uma prática comum na pecuária, seja no intuito de aumentar a produtividade (Carnagey et al 2008, Baldin et al 2013), prevenir incidência de doenças (Ferreira et al 2007) ou como adjuvante no tratamento de doenças infecciosas (Mukherjee 2008, Lopes et al 2009). …”