- Volume 25 Issue 4
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The Impact of Feeding Diets of High or Low Energy Concentration on Carcass Measurements and the Weight of Primal and Subprimal Lean Cuts
- Schinckel, A.P. (Purdue University, Department of Animal Sciences) ;
- Einstein, M.E. (Purdue University, Department of Animal Sciences) ;
- Jungst, S. (PIC North America) ;
- Matthews, J.O. (PIC North America) ;
- Fields, B. (PIC North America) ;
- Booher, C. (PIC North America) ;
- Dreadin, T. (PIC North America) ;
- Fralick, C. (Swine Tek) ;
- Tabor, S. (The Hanor Company) ;
- Sosnicki, A. (PIC North America) ;
- Wilson, E. (PIC North America) ;
- Boyd, R.D. (The Hanor Company)
- Received : 2011.07.08
- Accepted : 2011.11.23
- Published : 2012.04.01
Pigs from four sire lines were allocated to a series of low energy (LE, 3.15 to 3.21 Mcal ME/kg) corn-soybean meal-based diets with 16% wheat midds or high energy diets (HE, 3.41 to 3.45 Mcal ME/kg) with 4.5 to 4.95% choice white grease. All diets contained 6% DDGS. The HE and LE diets of each of the four phases were formulated to have equal lysine:Mcal ME ratios. Barrows (N = 2,178) and gilts (N = 2,274) were fed either high energy (HE) or low energy (LE) diets from 27 kg BW to target BWs of 118, 127, 131.5 and 140.6 kg. Carcass primal and subprimal cut weights were collected. The cut weights and carcass measurements were fitted to allometric functions (Y = A
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