RT Journal Article
T1 Influence of grain processing in regard to serum metabolites and enzymes for finishing bull calves
A1 Castillo Rodríguez, Cristina
A1 Benedito Castellote, José Luis
A1 Pereira Lestayo, Víctor
A1 Sotillo, Juan
A1 Suárez, A.
A1 Méndez, Jesús
A1 Vázquez, Patricia
A1 Hernández Bermúdez, Joaquín
K1 Ground grain
K1 Pelleted grain
K1 Blood parameters
K1 Feedlot
K1 Bull calves
AB This study compared two grain processing methods that are widely used for beef cattle, grinding and steam pelleting, with respect to serum metabolic parameters: glucose, non-esterified fatty acids (NEFA), serum urea nitrogen (SUN), total serum protein (TSP), albumin, L-lactate, aspartate aminotransferase (AST), γ-glutamyltransferase (GGT) and amylase. Ten Belgian Blue bull calves were allotted randomly to each of two experimental groups: PF, fed pelleted concentrate, and GF, fed ground concentrate. During the 77-day study most parameters underwent significant variation in time, increasing only numerically serum values of total protein, albumin, AST and amylase, while serum glucose, NEFA and GGT decreased numerically. Statistically significant differences were found only between groups PF and GF for creatinine (higher in group PF, in relation with its greater average body weight) and urea nitrogen, which for unknown causes fluctuated in opposite directions in the two groups throughout most of the study and attributable to changes in ruminal protein digestion. Neither serum glucose nor L-lactate were affected by treatment of grains
PB Polska Akademia Nauk
SN 1230-1388
YR 2011
FD 2011
LK http://hdl.handle.net/10347/24266
UL http://hdl.handle.net/10347/24266
LA eng
NO J. Anim. Feed Sci. 2011;20(4):483–492
NO Supported by the Xunta de Galicia (Spain), Grant XUGA 2002/CG320
DS Minerva
RD 24 abr 2026