ENDOCRINE CONTROL OF SHEEP ADIPOSE-TISSUE FATTY-ACID SYNTHESIS - DEPOT SPECIFIC DIFFERENCES IN RESPONSE TO LACTATION

被引:13
作者
DELAHOZ, L
VERNON, RG
机构
[1] HANNAH RES INST,AYR KA6 5HL,SCOTLAND
[2] UNIV COMPLUTENSE MADRID,FAC VET,DEPT HIGIENE & TECNOL ALIMENTOS,CIUDAD UNIV,MADRID 3,SPAIN
关键词
INSULIN; LACTATION; SHEEP; ADIPOSE TISSUE;
D O I
10.1055/s-2007-1002079
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The effects of lactation and insulin, growth hormone and dexamethasone (a glucocorticoid analogue) have been assessed on the rate of fatty acid synthesis in adipose tissue from omental (abdominal), subcutaneous and popliteal (intermuscular) depots of sheep. Adipocyte mean cell volume was greatest in omental tissue but the rate of fatty acid synthesis was similar in omental and subcutaneous adipose tissue in non-lactating ewes. Insulin increased the rate of fatty acid synthesis in tissue from all three depots and this was antagonised by growth hormone. The effects of growth hormone were less in omental adipose tissue from non-lactating sheep than in the other two depots. Lactation decreased the rate of fatty acid synthesis in all three depots, but to a lesser extent in omental than the other depots. Insulin resistance was apparent in subcutaneous and popliteal tissues from lactating ewes but not in omental tissue. Omental adipose tissue, thus differs in several aspects from the two carcass depots. Differences in response to hormones in omental adipose tissue were apparent in young sheep before the onset of fattening when omental adipocytes are similar in size to subcutaneous adipocytes.
引用
收藏
页码:214 / 218
页数:5
相关论文
共 17 条
[1]   FAT PARTITIONING IN BRITISH FRIESIAN COWS - THE INFLUENCE OF PHYSIOLOGICAL-STATE ON DISSECTED BODY-COMPOSITION [J].
BUTLERHOGG, BW ;
WOOD, JD ;
BINES, JA .
JOURNAL OF AGRICULTURAL SCIENCE, 1985, 104 (JUN) :519-528
[2]   LITERATURE SURVEY - BODY-COMPOSITION AND LIPID-METABOLISM IN ADIPOSE TISSUES AND LIVER DURING PREGNANCY AND LACTATION .2. IN THE EWE AND THE COW [J].
CHILLIARD, Y .
REPRODUCTION NUTRITION DEVELOPMENT, 1987, 27 (2A) :327-398
[4]   CELLULARITY OF OVINE ADIPOSE-TISSUE [J].
HOOD, RL ;
THORNTON, RF .
AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH, 1979, 30 (01) :153-161
[5]  
HOOD RL, 1982, FED PROC, V41, P2555
[6]   REGULATION OF ADIPOSE-TISSUE METABOLISM IN SUPPORT OF LACTATION [J].
MCNAMARA, JP .
JOURNAL OF DAIRY SCIENCE, 1991, 74 (02) :706-719
[7]  
NOUGUES PJ, 1977, ANN BIOL ANIM BIOCH, V17, P799
[8]  
POND CM, 1989, FORTSCHR ZOOL, V35, P67
[9]  
ROBERTSON JP, 1982, BIOCHEM J, V206, P577, DOI 10.1042/bj2060577
[10]   A NOTE ON THE EFFECT OF ADIPOCYTE SIZE ON INVITRO LIPOGENESIS FROM ACETATE AND LACTATE IN SUBCUTANEOUS ADIPOSE-TISSUE OF LARGE-SMALL AND SMALL-FRAME BEEF STEERS AT 6 MONTHS OF AGE [J].
RULE, DC ;
BEITZ, DC ;
HOOD, RL .
ANIMAL PRODUCTION, 1987, 44 :454-456