caa a22 4500 388060794 CHVBK 20180307125120.0 cr unu---uuuuu 161130e199804 xx s 000 0 eng 10.1017/S1357729800009656 doi S1357729800009656 pii (NATIONALLICENCE)cambridge-10.1017/S1357729800009656 Effects of dietary fatty acids on lipogenesis and lipid traits in muscle, adipose tissue and liver of growing rabbits [Elektronische Daten] The effects of fat source on lipogenesis and lipid traits of longissimus muscle, liver and perirenal adipose tissue, were studied in 48 New Zealand White rabbits, slaughtered at 11 or 15 weeks of age. Rabbits were offered diets with 20 g added fat per kg, containing either medium-chain (COC: coconut oil), saturated and monounsaturated (PAL: palm oil) or polyunsaturated (SUN: sunflower oil) fatty acids as major components. Diets did not affect growth performance, dressing proportion and tissue weights. Intramuscular lipid content was lower for COC than for SUN and PAL (e.g. 10 v. 13 and 12 glkg, at 11 weeks, respectively, P < 0·05), whereas lipid content was unaffected by diet in liver and perirenal fat. In muscle, the fat source did not influence the activities of acetyl-CoA-carboxylase (CBX), malic enzyme (ME) and glucose-6-phosphodehydrogenase (G6PDH). In liver, activities ofGSPDH and ME were depressed from the SUN diet, as compared with the COC or PAL diets. The diet-induced variations in enzyme activities in perirenal fat were lower than in the liver and were not significant. Medium-chain fatty acids were found only in tissue lipids of animals given COC. The ratio of polyunsaturated to saturated fatty acids decreased in the order SUN > PAL > COC in muscle and perirenal fat. Thus, polyunsaturated fatty acids exert an inhibition of G6PDH and ME activities specifically in liver. Compared with COC, the addition of SUN to the basal diet increased total lipids and polyunsaturated fatty acids contents in the longissimus lumborum muscle, which might improve the organoleptic and dietetic qualities of rabbit meat. Copyright © British Society of Animal Science 1998 dietary fat nationallicence intramuscular fat nationallicence lipogenesis nationallicence rabbits nationallicence Gondret F. Station de Recherches Porcines, INRA, 35590 St Gilles, France Mourot J. Station de Recherches Porcines, INRA, 35590 St Gilles, France Lebas F. Station de Recherches Cunicoles, INRA, BP 27, 31326 Castanet Tolosan cedex, France Bonneau M. Station de Recherches Porcines, INRA, 35590 St Gilles, France Animal Science Cambridge University Press 66/2(1998-04), 483-489 1357-7298 66:2<483 1998 66 ASC https://doi.org/10.1017/S1357729800009656 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1357729800009656 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gondret F. Station de Recherches Porcines, INRA, 35590 St Gilles, France NATIONALLICENCE 700 1- Mourot J. Station de Recherches Porcines, INRA, 35590 St Gilles, France NATIONALLICENCE 700 1- Lebas F. Station de Recherches Cunicoles, INRA, BP 27, 31326 Castanet Tolosan cedex, France NATIONALLICENCE 700 1- Bonneau M. Station de Recherches Porcines, INRA, 35590 St Gilles, France NATIONALLICENCE 773 0- Animal Science Cambridge University Press 66/2(1998-04), 483-489 1357-7298 66:2<483 1998 66 ASC CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge