Alhaji MohammedU.; Fidelis A. V.; Victor J. G. STUDIES ON THE PREVALENCE OF GASTRO-INTESTINAL NEMATODES IN RUMINANT ANIMALS SLAUGHTERED IN BIU LOCAL GOVERNMENT ABATTOIRS, BORNO STATE, NIGERIA. FUDMA JOURNAL OF SCIENCES, v. 7, n. 2, p. 141 - 145, 30 Apr. 2023.