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The effect of mammary O-2 uptake, CO2 and H+ production on mammary blood flow during pregnancy, lactation and somatotropin treatment in goats
被引：14
|作者：
Nielsen, MO
Schleisner, C
Jakobsen, K
Andersen, PH
机构：
[1] NATL INST ANIM SCI,DEPT RES PIGS & HORSES,DK-8830 TJELE,DENMARK
[2] ROYAL VET & AGR UNIV,DEPT CLIN STUDIES,DK-1870 FREDERIKSBERG C,DENMARK
来源：
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY
|
1995年
/
112卷
/
3-4期
关键词：
mammary gland;
metabolic activity;
arteriovenous difference;
blood flow;
goats;
lactation;
pregnancy;
somatotropin;
D O I：
10.1016/0300-9629(95)02032-2
中图分类号：
Q5 [生物化学];
Q7 [分子生物学];
学科分类号：
071010 ;
081704 ;
摘要：
The role of mammary metabolic activity in regulation of mammary blood flow was studied in dairy goats, Milk vein blood velocity (MBV) followed changes in milk yield closely during lactation and somatotropin (ST) treatment. During pregnancy and lactation, arteriovenous differences (AV) across each mammary gland for HCO3- were negatively correlated to MBV. Changes in MBV during ST treatment and during the day affected AV for pCO(2) and pH, rather than AV for HCO3-. Mammary CO2 production, but not O-2 uptake, is involved in local regulation of mammary blood flow, but the mechanisms involved during lactation and ST treatment may not be identical.
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页码：591 / 599
页数：9
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