Jagos P, Bouda J, Skrivánek M
Vet Med (Praha). 1986 Feb;31(2):65-73.
Two milk feeding systems were investigated as influencing the health and development of calves. After the termination of colostrum feeding, the ten animals of the experimental group were given whole milk whereas the control group (also ten calves) was given the Laktosan milk replacer. By the age of three months, blood was collected from the calves for biochemical examination in weekly intervals, later once a month. The content of urea, determined in the blood plasma of the calves of the experimental group was significantly lower in the fourth to seventh week. The plasma levels of nitrogen, potassium, calcium and magnesium were about the same in the experimental and control groups, being within the limits of the reference values. At the age of six to nine weeks, the content of inorganic phosphorus in the blood plasma of the tested animals was statistically significantly higher. Vitamin A concentration in the blood plasma was about the same in both groups. The content of vitamin E in the blood plasma of the calves of the experimental group was statistically significantly higher in the fourth to eight week of age. No significant differences between the two groups were observed in the plasmatic activities of aspartate aminotransferase (AST) and gamma-glutamyl transferase (GMT). The activities of alkaline phosphatase (ALP) were significantly higher in the third to fifth week of life. From the fifth to eighteenth week of age, the average daily weight gains were significantly higher in the calves given whole milk.
研究了两种喂奶系统对犊牛健康和发育的影响。初乳喂养结束后，实验组的10头动物喂全脂牛奶，而对照组（也是10头犊牛）喂Laktosan代乳品。到三个月大时，每周从犊牛身上采集血液进行生化检查，之后每月采集一次。实验组犊牛血浆中尿素的含量在第四至七周显著较低。实验组和对照组血浆中的氮、钾、钙和镁水平大致相同，均在参考值范围内。在六至九周龄时，受试动物血浆中无机磷的含量在统计学上显著较高。两组血浆中维生素A的浓度大致相同。实验组犊牛血浆中维生素E的含量在四至八周龄时在统计学上显著较高。两组之间天冬氨酸转氨酶（AST）和γ-谷氨酰转移酶（GMT）的血浆活性没有显著差异。碱性磷酸酶（ALP）的活性在出生后第三至五周显著较高。从五至十八周龄，喂全脂牛奶的犊牛平均日增重显著较高。
