Browse/search for people

Publication - Professor Jeff Wood

    Effects of low protein diets on pigs with a lean genotype 2. Compositional traits measured with computed tomography (CT)

    Citation

    Lambe, NR, Wood, JD, McLean, KA, Walling, GA, Whitney, H, Jagger, S, Fullarton, P, Bayntun, J & Bünger, L, 2013, ‘Effects of low protein diets on pigs with a lean genotype 2. Compositional traits measured with computed tomography (CT)’. Meat Science, vol 95., pp. 129-136

    Abstract

    The effects on compositional changes across the growing-finishing period (40-115. kg) of feeding pig diets with different protein and amino acid levels were investigated using CT scanning (at 60, 85 and 115. kg live weight). Pigs of a lean commercial genotype were fed a commercial control regime (C), or a low protein regime with either high (LP1) or low (LP2) essential amino acid levels, all balanced for net energy. In vivo CT measurements agreed well with post-slaughter sample joint dissection results for carcass tissue weights/proportions, and CT-measured muscle density predicted intramuscular fat accurately. Pigs on C and LP1 regimes did not differ significantly in composition during growth. However, pigs on the LP2 regime had significantly more fat (in carcass, internal and intra-muscular depots) and less muscle, from 85. kg onwards. Although fat levels differed depending on diet regime (LP2 > others), proportions of fat in different body depots were unaffected.

    Full details in the University publications repository