Davis S R, Bickerstaffe R
Aust J Biol Sci. 1978 Apr;31(2):133-9. doi: 10.1071/bi9780133.
(1) The validity of using the arterio-venous concentration difference of methionine to calculate mammary blood flow in the ewe, on the basis of the Fick principle, is discussed. (2) Calculation of mammary blood flow in the lactating Merino ewe indicated that blood flow per unit weight of tissue and the ratio of blood flow : milk yield were approximately twice that found in the lactating cow and goat. (3) Calculated mammary blood flow in Merino ewes was used in conjunction with glucose arterio-venous difference to determine mammary glucose uptake. Glucose uptake per unit weight of tissue in the ewe was almost double that found in the cow and goat. The ratio of mammary glucose uptake to lactose output was also higher in the ewe than that found in the cow and goat. The utilization of glucose by the mammary gland of the ewe is discussed in relation to the possible greater requirement for NADPH and glycerol for milk fat synthesis in this species.
(1) 讨论了基于菲克原理，利用蛋氨酸的动静脉浓度差来计算母羊乳腺血流量的有效性。(2) 对泌乳美利奴母羊乳腺血流量的计算表明，单位组织重量的血流量以及血流量与产奶量的比值约为泌乳奶牛和山羊的两倍。(3) 将美利奴母羊计算出的乳腺血流量与葡萄糖动静脉差值结合起来，以确定乳腺对葡萄糖的摄取量。母羊单位组织重量的葡萄糖摄取量几乎是奶牛和山羊的两倍。母羊乳腺葡萄糖摄取量与乳糖产量的比值也高于奶牛和山羊。结合该物种在乳脂肪合成中对烟酰胺腺嘌呤二核苷酸磷酸（NADPH）和甘油可能有更大需求，讨论了母羊乳腺对葡萄糖的利用情况。
