2J. R. Middleton, L.K. Fox, J. M. Gay. J. W. Tyler Influence of Staphylococcus aureus strain-type on mammary quarter milk somatic cell count and N-acetyl-β-D-glucosaminidase activity in cattle from eight dairies[J]. J. Dairy Sci. 2002 ,85: 1133-1140.
3Dalject ChhabraStudies on Mycotic Mastitis in Cattle[J]. Indian Vet. J. 1999,76(11):1043-1045.
4Anakaco Shitandi and Gathoni Kihumbu. Assessment of California mastitis test usage in smallholder dairy herds and risk of violative antimicrobial residues[J]. J. Vet. Sci. 2004. 5 (1): 5-9.
5D S Nauriyal and S S Pachauri.. Determination enzyme N-acetyle-β-D-glucosaminidase activity for screeing dairy herds for mastitis[J]. Indian Journal of Animal Sciences 1999 ,69(3) :175.
6A.T. Guliye, C. Van Creveld and R. Yagil. Detection of snbclinical mastitis in dromedary camels (Camelus dromedarius )using somatic cell counts and the N-acetyle-β-D-glucosaminidase test[J]. Tropical Animal Health and Production, 2002,34:95-104.