Absorption and Delivery of Nutrients for Milk Protein Synthesis by Portal-Drained Viscera
نویسندگان
چکیده
منابع مشابه
Substrate oxidation by the portal drained viscera of fed piglets.
Fully fed piglets (28 days old, 7-8 kg) bearing portal, arterial, and gastric catheters and a portal flow probe were infused with enteral [U-13C]glutamate ( n = 4), enteral [U-13C]glucose ( n = 4), intravenous [U-13C]glucose ( n = 4), or intravenous [U-13C]glutamine ( n = 3). A total of 94% of the enteral [U-13C]glutamate but only 6% of the enteral [U-13C]glucose was utilized in first pass by t...
متن کاملNet absorption of amino acids by portal-drained viscera and hind half of beef cattle fed a high concentrate diet.
Two experiments were conducted to measure the effect of level of feed intake on net amino acid absorption by portal-drained viscera of six beef heifers with catheters in a mesenteric vein, portal vein and iliac artery (Exp. 1) and to evaluate intrajugular infusion of insulin or glucose on amino acid uptake by hind half of four beef steers with catheters in posterior aorta and vena cava (Exp. 2)...
متن کاملSomatotropin-induced protein anabolism in hindquarters and portal-drained viscera of growing pigs.
To differentiate the effect of somatotropin (ST) treatment on protein metabolism in the hindquarter (HQ) and portal-drained viscera (PDV), growing swine (n = 20) treated with ST (0 or 150 microg x kg(-1) x day(-1)) for 7 days were infused intravenously with NaH(13)CO(3) and [(2)H(5)]phenylalanine and enterally with [1-(13)C]phenylalanine while in the fed state. Arterial, portal venous, and vena...
متن کاملOxygen consumption by and blood flow across the portal-drained viscera and liver of pregnant ewes.
The energy requirement of ewes increases during pregnancy. In late pregnancy, approximately 40% of the increase in heat production can be attributed to increases in heat production by nonreproductive tissues. The objective of this study was to determine the pattern of oxygen consumption by the portal-drained viscera (PDV) and liver during pregnancy to allow for an estimation of the extent to wh...
متن کاملNet absorption from portal-drained viscera of nitrogenous compounds by beef heifers fed on diets differing in protein solubility or degradability in the rumen.
The objective of the present study was to evaluate effects of in vitro rumen solubility or degradability of dietary protein on net absorption of nitrogenous compounds from portal-drained viscera of beef heifers. Four protein sources, casein, soya-bean meal, maize-gluten meal and blood meal provided about two-thirds of total dietary nitrogen in semi-purified diets given to four beef heifers in a...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1994
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(94)77220-9