Gabris J, Duran A
Vet Med (Praha). 1983 Sep;28(9):513-8.
In the cows of the whole group under study, a significant negative relation (r = = -0.4797) was found between the histidine level in arterial blood and protein content in milk; further, there was a significant positive relation (r = 0.4624) between alanine level in milk and protein content in milk, and a significant negative relation (r = -0.5028) for the level of threonine. The group of cows with a higher milk output showed a significant negative relation between methionine level in milk and protein content in milk (r = -0.7482) and a highly significant negative relation between threonine level and protein content in milk (r = -0.8410). The negative relations of some amino acids to the content of protein in milk suggest that there is a poor supply of these amino acids for the production of protein in milk.
在整个研究组的奶牛中，发现动脉血中组氨酸水平与牛奶中的蛋白质含量之间存在显著的负相关关系（r = -0.4797）；此外，牛奶中丙氨酸水平与牛奶中的蛋白质含量之间存在显著的正相关关系（r = 0.4624），而苏氨酸水平则存在显著的负相关关系（r = -0.5028）。产奶量较高的奶牛组中，牛奶中的蛋氨酸水平与牛奶中的蛋白质含量之间存在显著的负相关关系（r = -0.7482），苏氨酸水平与牛奶中的蛋白质含量之间存在高度显著的负相关关系（r = -0.8410）。一些氨基酸与牛奶中蛋白质含量的负相关关系表明，这些氨基酸用于牛奶蛋白质生产的供应不足。
