Sohail M A, Cole D J, Lewis D
Vet Rec. 1978 Jan 21;102(3):55-8. doi: 10.1136/vr.102.3.55.
Two pregnant sows were fed on a basal diet consisting of equal amounts of ground barley and ground wheat with or without addition of L-lysine hydrochloride. Plasma amino acid and blood urea levels varied according to the time after feeding. Almost all the essential amino acids reached a maximum level after one hour and then declined at four hours after feeding. The results suggested that samples taken at between one and four hours after feeding were responsive to changes in dietary composition and could provide a measure to evaluate the amino acid pattern in relation to feeding. Both plasma amino acid and blood urea data suggested that lysine was the first limiting amino acid in the basal diet.
选用两头妊娠母猪，给它们饲喂由等量大麦粉和小麦粉组成的基础日粮，基础日粮中添加或不添加盐酸L-赖氨酸。血浆氨基酸和血尿素水平随采食后的时间而变化。几乎所有必需氨基酸在采食后1小时达到最高水平，然后在采食后4小时下降。结果表明，采食后1至4小时采集的样本对日粮组成变化有反应，可作为评估与采食相关的氨基酸模式的一种方法。血浆氨基酸和血尿素数据均表明，赖氨酸是基础日粮中的第一限制性氨基酸。
