Lipogenic enzyme activity in growing Rasa Aragonesa lambs
Fecha
1995Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
nodoi-noplumx
|
Resumen
The lipogenic enzyme activity of the following enzymes was studied: Glycerol 3-phosphate
dehydrogenase (G3PDH), fatty acids synthetase (FAS), NADP-Malate dehydrogenase (ME) and Glucose
6-phosphate dehydrogenase (G6PDH) in five fat depots (omental, OM; mesenteric, MES; kidney knob and
channel, KKC; subcutaneous, SC; intermuscular, IM) in 45 male Rasa Aragonesa lambs divided into three
groups o ...
[++]
The lipogenic enzyme activity of the following enzymes was studied: Glycerol 3-phosphate
dehydrogenase (G3PDH), fatty acids synthetase (FAS), NADP-Malate dehydrogenase (ME) and Glucose
6-phosphate dehydrogenase (G6PDH) in five fat depots (omental, OM; mesenteric, MES; kidney knob and
channel, KKC; subcutaneous, SC; intermuscular, IM) in 45 male Rasa Aragonesa lambs divided into three
groups of 15 lambs (G12, G24, G36). They were slaughtered respectively at 11.70 ± 0.67; 24.50 ± 0.57 and
35.80 ± 1.74 kg of live weight (LW) and at 32 ± 5; 89 ± 8, and 123 ± 8 days old. The G12 lambs were
slaughtered on the day of weaning, having consumed solely their mother's milk; those in the G24 and G36
groups were weaned at 16.20 ± 1.32 and 18.30 ± 2.46 kg LW respectively, were fed from then onward concentrated fodder and barley straw ad libitum until they were slaughtered. Between 24 and 36 kg LW an increase in the activity of the G3PDH and FAS lipogenic enzymes was observed. The increasine the 'de novo'
synthesis (FAS) at 36 kg LW was matched by G6PDH activity, which indicates greater use of acetate as a
precursor of fatty acids. Furthermore, the maintenance of ME activity during the period studied would indicate
that the glucose rate utilization for the fatty acids synthesis was not modified throughout this period. [--]
Materias
Rasa aragonesa lambs,
Growth,
Fattening,
Lipogenic enzyme activity
Editor
CIHEAM
Publicado en
Purroy A. (ed.): Body condition of sheep and goats: methodological aspects and applications. Zaragoza: CIHEAM, 1995. p. 185-190 (Options Méditerranéennes: Série A. Séminaires Méditerranéens; n. 27)
Notas
Seminario del Working Group on Body Condition of Sheep and Goats of the FAO/CIHEAM Network on Sheep and Goats, celebrada del 24 al 31 Marzo de 1994 en Zaragoza
Departamento
Universidad Pública de Navarra. Departamento de Producción Agraria /
Nafarroako Unibertsitate Publikoa. Nekazaritza Ekoizpena Saila /
Universidad Pública de Navarra. Departamento de Química Aplicada /
Nafarroako Unibertsitate Publikoa. Kimika Aplikatua Saila