Maulidiyah, M., Ardana, I. B. K. and Suardana, I. B. K. (2025) “THE EFFECT OF NATURAL GUARD IN DRINKING WATER ON NEWCASTLE DISEASE ANTIBODY TITER IN LAYING HENS”, Buletin Veteriner Udayana, 17(2), pp. 721–728. doi: 10.24843/bulvet.2025.v17.i03.p17.