Premium
Effects of increasing amount of dietary P rosopis laevigata pods on performance, meat quality and fatty acid profile in growing lambs
Author(s) -
Negrete L. O.,
PinosRodríguez J. M.,
GrajalesLagunes A.,
Morales J. A.,
GarcíaLópez J. C.,
LeeRangel H. A.
Publication year - 2017
Publication title -
journal of animal physiology and animal nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.651
H-Index - 56
eISSN - 1439-0396
pISSN - 0931-2439
DOI - 10.1111/jpn.12606
Subject(s) - linoleic acid , fatty acid , biology , palmitic acid , oleic acid , food science , conjugated linoleic acid , zoology , feed conversion ratio , stearic acid , polyunsaturated fatty acid , completely randomized design , chemistry , body weight , botany , biochemistry , endocrinology , organic chemistry
Summary A study with finishing lambs assessed the effect of dietary inclusion of Prosopis laevigata pods ( PLP s) on performance, carcass characteristics, meat traits and fatty acid profile of subcutaneous fat. Twenty‐one Rambouillet lambs (27.0 ± 3.0 kg BW ) were assigned to one of three experimental diets with 0, 150 and 300 g PLP /kg DM . Evaluation of growth performance lasted 49 days. The experimental design was completely randomized and analysed with a mixed model. Lambs fed diets with 0, 150 and 300 g PLP had similar growth performance. Lambs fed diets with 300 g PLP /kg DM had better (p < 0.05) carcass yield and classification, less (p < 0.05) fat deposition and lower lightness ( L* ) value (p < 0.05) in meat than lambs fed diets with 0 and 150 g PLP /kg DM . Saturated fatty acids (palmitic and stearic) decreased (p < 0.05) and unsaturated fatty acids (oleic and linoleic) increased (p < 0.05) in subcutaneous fat of lambs fed diets with 150 and 300 g pods as compared with lambs not fed PLP . Prosopis laevigata pods are a safe feedstuff that can replace a third of conventional ingredients and reduce feed costs in growing lambs. Addition of PLP reduced (p < 0.05) total feed cost by 21%.