The capability of alfalfa grazing- and concentrate-based feeding systems to produce homogeneous carcass quality in light lambs over time
MetadataShow full item record
The effects of grazing on the carcasses and meat of light lambs are unclear, mainly due to variations in weather conditions and pasture production, which affect the growth of lambs and the quality of their carcasses. The aim of this study was to evaluate the effect of feeding systems, which varied in intensification due to the use of concentrate, on the growth and carcass traits of light lambs and the capability of these feeding systems to produce homogeneous lamb carcasses over the course of several years. The average daily weight gain of grazing lambs, but not lambs fed indoors was affected over years. The colour of the Rectus abdominis muscle and the amount of fat were more variable in grazing lambs (from 2.7 to 6.3) than indoor lambs (from 4.5 to 5.1). Grazing feeding systems without concentrate supplementation are more dependent than indoor feeding systems on the year. This climatologic dependence could lead to slaughter of older grazing lambs (77 days) to achieve the target slaughter weight when temperatures are low or the rainfall great. All feeding systems evaluated produced light lambs carcasses with a conformation score from O to R – that is required by the market. Even the potential change in fat colour found in both grazing treatments was not enough to change the subjective evaluation of fat colour.
Is part ofSpanish Journal of Agricultural Research, 2014, vol. 12, núm. 1, p. 167-179
European research projects
Showing items related by title, author, creator and subject.
Estimation of light lamb carcass composition by in vivo real-time ultrasonography at four anatomical locations Ripoll, Guillermo; Joy, Margalida; Álvarez Rodríguez, Javier; Sanz Pascua, Albina; Teixeira, A. (American Society of Animal Science, 2009)The objectives of this study were to study the relationship between in vivo ultrasound measurements and cold carcass measurements at 4 anatomical points of the backbone, and to establish regression equations to estimate ...
Effect of concentrate supplementation and prolificacy on the productive and economic performance of autochthonous sheep breeds fed forage-based diets Ripoll Bosch, Raimon; Joy, Margalida; Sanz Pascua, Albina; Blasco, Isabel; Ripoll, Guillermo; Álvarez Rodríguez, Javier (Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2014)Sheep farming systems in Spain are experiencing an intensification process, characterised by a general selection criteria of enhancing prolificacy in ewes, and by increasing indoor feeding with concentrates to the detriment ...
Does forage type (grazing vs. hay) fed to ewes before and after lambing affect suckling lambs performance, meat quality and consumer purchase intention? Álvarez Rodríguez, Javier; Joy, Margalida; Sanz Pascua, Albina; Ripoll, Guillermo; Panea, B; Ripoll Bosch, Raimon; Blasco, Isabel (Elsevier, 2012)The aim of the study was evaluate the use of forage diets (grazing pasture vs. hay) around ewe parturition on the performance and meat quality of suckling lambs (10–12 kg bodyweight). Forty-eight multiparous single bearing ...