Table 2. Aspartate transaminase (AST), alanine transaminase (ALT) and gamma-glutamyltransferase (GGT) contents in cow serum.

Parameter value	Cattle breed	Farm place	References
Aspartate transaminase (AST) content
78–132 U/L	Data not available	Data not available	Kaneko, Harvey & Bruss (2008)
183–2667 nkat/L	Simmental breed	Belorussia	Kholod & Ermolaev (1988)
62–82 U/L	Black & white breed	Moscow region, Russia	Voronina (2017) and Zaitsev (2016)
24–45 U/L	Holstein	Ontario, Canada	Lumsden, Mullen & Rowe (1980)
19.3–37.7	Brahman crossbreed cattle	Au Giang Province, Vietnam	Xuan, Loc & Ngu (2018)
934–1417 nkat/L	Data not available	Kazan region, Russia	Hazipov & Askarova (2003)
Alanine transaminase (ALT) content
11–40 U/L	Data not available	Data not available	Kaneko, Harvey & Bruss (2008)
22–1000 nkat/L	Simmental breed	Belorussia	Kholod & Ermolaev, 1988
62–82 U/L	Black & white breed	Moscow region, Russia	Voronina (2017) and Zaitsev (2016)
5–18 U/L	Holstein	Ontario, Canada	Lumsden, Mullen & Rowe (1980)
13.8–26.5 U/L	Brahman crossbreed cattle	Au Giang Province, Vietnam	Xuan, Loc & Ngu (2018)
450–700 nkat/L	Data not available	Kazan region, Russia	Hazipov & Askarova (2003)
Gamma-glutamyltransferase (GGT) content
6.1–17.4 U/L	Data not available	Data not available	Kaneko, Harvey & Bruss (2008)
111.7–483.4 nkat/L	Simmental breed	Belorussia	Kholod & Ermolaev (1988)
28–44 U/L	Black & white breed	Moscow region, Russia	Voronina (2017) and Zaitsev (2016)
450–700 nkat/L	Data not available	Kazan region, Russia	Hazipov & Askarova (2003)