The Use of Garlic (Allium Sativum) Extracts as Replacement for Newcastle Disease [Lasota] Vaccine in Broiler Chicken

In poultry production most investigations on garlic are concerning its effects on birds' growth response and diet utility. This work was carried out to investigate the efficacy of aqueous garlic extract (AGE) against Newcastle diseases (NCD) virus in broiler birds. Three hundred (300) day old chicks were divided into four at 75 birds per treatment each and replicated three times. Treatments were NCD (Lasota) vaccination (control), 6mil, 8mil and 10mil of AGE respectively and each AGE were diluted with one litre of borehole water as a dose/100chicks. At completion of treatments, one NCD infected bird was introduced to each replication for three days as inoculums in the experimental units. Haematological and Serum Bio-chemical analysis of sampled birds (three from each unit) were conducted. For Haematological indices only the means percentage of heterophils and that of lymphocytes showed significant difference others did not. However, for the serum, only means of urea and cholesterol exhibit significant difference. Yet the all values of parameters studied were within range for normal birds, which suggested AGEs treated birds has their immune developed as well as those treated with NCD vaccine. Therefore, this study recommends the use of AGE up to 10ml dilution with one litre of water/100 chicks as preventive measure against NCD for broiler chicken.