TY  - JOUR
T1  - Effect of Dietary Calcium Level on True Metabolizable Energy Value of Various Fat Sources Determined by Precision Fed Rooster Assay
AU - , M. Salarmoini AU - , A. Golian 
JO  - Journal of Animal and Veterinary Advances
VL  - 8
IS  - 6
SP  - 1152
EP  - 1156
PY  - 2009
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2009.1152.1156
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2009.1152.1156
KW  - Fat
KW  -calcium
KW  -true metabolizable energy
KW  -rooster assay
AB  - An experiment was conducted to determine the effect of dietary Ca levels on True Metabolizable Energy (TME) and TME with nitrogen correction (TME<SUB>n</SUB>) values of 3 fat sources (cotton seed oil, animal fat and a 50:50 mixture). The fats were each added at the level of 0, 3, 6 and 9% to 2 basal low and high Ca content diets. The true metabolizable energy of experimental diets was determined using precision fed rooster assay method. The TME and TME<SUB>n</SUB> of 3 fat sources were obtained through regression and extrapolation to 100% fat replacement in basal diets. The addition of Ca carbonate to the zero added fat diet significantly (p&lt;0.05) reduced the TME<SUB>n</SUB> of diet (3348 vs. 3294 kcal kg<SUP>-1</SUP>). The true metabolizable energy of animal fat was significantly (p&lt;0.05) lower than that of cotton seed oil (8619 vs. 9974 kcal kg<SUP>-1</SUP>). However, the TME<SUB>n</SUB> of fat and oil mixture was similar to that of oil value (9974 vs. 9915 kcal kg<SUP>-1</SUP>). The TME<SUB>n</SUB> of fat decreased as the level of fat increased (p&lt;0.01) when it was calculated by the difference method. Addition of Ca carbonate to the diets contained any sources of fat significantly (p&lt;0.05) reduced the TME<SUB>n</SUB> value of fat. The metabolizable energy of fat linearly (p&lt;0.05) reduced in response to increase in dietary fat levels as determined by difference method.
ER  -