[1] Univ Putra Malaysia, Inst Trop Agr & Food Secur, Upm Serdang 43400, Selangor, Malaysia
[2] Univ Putra Malaysia, Fac Agr, Dept Anim Sci, Upm Serdang, Selangor, Malaysia
[3] Univ Malaysia Kelantan, Fac Vet Med, Dept Paraclin Studies, Kota Baharu 16100, Kelantan, Malaysia
[4] Univ Putra Malaysia, Dept Vet Pathol & Microbiol, Fac Vet Med, Upm Serdang, Selangor, Malaysia
[5] Univ Putra Malaysia, Dept Vet Clin Studies, Fac Vet Med, Upm Serdang 43400, Selangor, Malaysia