喂养受限窝仔数大鼠的乳汁成分
Milk composition of rats feeding restricted litters.
作者信息
Grigor M R, Allan J, Carne A, Carrington J M, Geursen A
出版信息
Biochem J. 1986 Feb 1;233(3):917-9. doi: 10.1042/bj2330917.
Abstract
Milk samples were taken from rats feeding ten pups and from both the suckled and non-suckled glands of rats feeding two pups. The lipid, protein and lactose concentrations were similar in the milks from the secreting glands, but the fluid from the non-suckled glands contained less lactose and lipid but significantly higher total protein and transferrin concentrations. The fatty acid compositions of the milk from the three sources were very similar. The mammary tissue from the rats feeding ten pups had a higher DNA content/g wet wt. than either the suckled or non-suckled mammary tissue of the rats feeding two pups. The specific activities of several lipogenic enzymes were significantly lower in the non-suckled mammary tissue.
摘要
采集了哺育10只幼崽的大鼠的乳汁样本，以及哺育2只幼崽的大鼠的哺乳腺和未哺乳腺的乳汁样本。分泌腺分泌的乳汁中脂质、蛋白质和乳糖浓度相似，但未哺乳腺分泌的液体中乳糖和脂质含量较少，而总蛋白和转铁蛋白浓度显著更高。来自这三种来源的乳汁的脂肪酸组成非常相似。哺育10只幼崽的大鼠的乳腺组织每克湿重的DNA含量高于哺育2只幼崽的大鼠的哺乳或未哺乳乳腺组织。几种生脂酶的比活性在未哺乳乳腺组织中显著较低。
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