Ganz Sebastian, Failing Klaus, Hassan Abdulwahed Ahmed, Bülte Michael, Wehrend Axel
Clinic of Obstetrics, Gynecology and Andrology of Large and Small Animals with Ambulatory Service, Faculty of Veterinary Medicine, Justus-Liebig-University, 35392 Giessen, Hessen, Germany.
Biomathematics and Data Processing, Justus-Liebig-University Giessen, 35392 Giessen, Hessen, Germany.
Vet World. 2021 Aug;14(8):2267-2272. doi: 10.14202/vetworld.2021.2267-2272. Epub 2021 Aug 29.
Colostrum pasteurization is an established procedure in dairy farms in developed countries. This practice can improve the health status of the offspring by reducing several pathogens. This study aimed to focus on the pasteurization of bovine first colostrum and its influence on certain important bioactive components.
This study was conducted in Holstein-Friesian bull calves, which were randomly divided into two groups and fed with 6 L of untreated (UT, n=10) or 6 L of heat-treated (HT, 63.5°C for 30 min, n=10) colostrum from their own dam within the first 12 h after birth. Blood samples were taken before, 24 h, and 48 h after first colostrum intake to determine the concentrations of immunoglobulin G (IgG) and iron and the activity of gamma-glutamyltransferase (GGT) in the serum.
The level of IgG was not affected by pasteurization (p=0.19). However, a slower increase in GGT activity (p<0.05) and a lower serum iron concentration (p=0.04) were observed in the HT group.
It can be concluded that pasteurization influences the absorption of colostrum components and therefore, the passive transfer of immunity, although the level of IgG was not affected by pasteurization in this study.
在发达国家的奶牛场，初乳巴氏杀菌是一种既定的程序。这种做法可以通过减少多种病原体来改善后代的健康状况。本研究旨在聚焦于牛初乳的巴氏杀菌及其对某些重要生物活性成分的影响。
本研究以荷斯坦 - 弗里生公牛犊为对象，将其随机分为两组，并在出生后的前12小时内，一组喂以6升未经处理的（UT，n = 10）初乳，另一组喂以6升经热处理的（HT，63.5°C处理30分钟，n = 10）来自其自身母亲的初乳。在首次摄入初乳前、摄入后24小时和48小时采集血样，以测定血清中免疫球蛋白G（IgG）、铁的浓度以及γ - 谷氨酰转移酶（GGT）的活性。
IgG水平不受巴氏杀菌的影响（p = 0.19）。然而，在HT组中观察到GGT活性升高较慢（p < 0.05）且血清铁浓度较低（p = 0.04）。
可以得出结论，巴氏杀菌会影响初乳成分的吸收，进而影响免疫的被动转移，尽管在本研究中IgG水平不受巴氏杀菌的影响。
