TY  - JOUR
T1  - Influence of Fat Titer and Method of Addition on Characteristics of Ruminal and Total Tract Digestion
AU - , A. Plascencia AU - , E.G. Alvarez AU - , H. Davila-Ramos AU - , M.F. Montano AU - , Y.S. Valdes-Garcia AU - , R.A. Zinn 
JO  - Journal of Animal and Veterinary Advances
VL  - 7
IS  - 2
SP  - 145
EP  - 148
PY  - 2008
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2008.145.148
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2008.145.148
KW  - Yellow grease
KW  -tallow
KW  -steers
KW  -metabolism
KW  -fat titer
KW  -ruminal
AB  - Twelve Holstein steers (340±7.2 kg) with cannulas in the rumen and proximal duodenum were used to study the influence of fat titer (36 vs. 41°C) and method of fat inclusion (mixed in a portion of steam flaked corn in the proportion 25% fat and 75% corn, prior to adding other ingredients vs. addition of fat to the mixer as the second-to-last step, just before adding molasses) on characteristics of digestion. The basal diet contained 74.4% steam-flaked corn and 5% supplemental fat. There were no treatment effects (p&gt;0.10) on site and extent of OM, starch, N, lipid and ADF digestion, nor on ruminal VFA molar concentrations. Post-ruminal lipid digestion averaged 69.3%, in close agreement with expected (71%; where fat digestion, % = 83.18-4.52FI-0.68FI<SUP>3</SUP>) based on level of fat intake (FI, g kg <SUP>1</SUP> of body weight).
ER  -