Effect of Herbal Extract Mixture Supplementation in Poultry Diets on Growth Performance, Hematological Indices and Fecal Microbial Counts in Ri Crossbred Chicken
Effect of Herbal Extract Mixture Supplementation in Poultry Diets on Growth Performance, Hematological Indices and Fecal Microbial Counts in Ri Crossbred Chicken
Nguyen Hai Quan, Le Duc Thao, Nguyen Van Chao*
ABSTRACT
The aim of the present study was to evaluate the effect of supplementing the herbal extract mixture (50% of Tithonia diversifolia, 20% of Achyranthes aspera, 20% of Pseuderanthemum palatiferum, and 10% of Polyscias fruticosa) on growth performance, hematological indices and fecal E. coli, Salmonella counts of growing chickens. A total 450 one-day old Ri crossbred chicks were randomly located to 5 dietary treatments with 3 replicates (30 chicks per replicate) namely Negative control (NCTL) in which birds fed a basal diet; Positive control (PCTL): added 1 g colistin per 1 kg of basal diet for first 3 weeks of age; and experimental treatments HE05, HE10 and HE15 in which 0.5 g, 1 g and 1.5 g of herbal extract mixture added in 1 kg of basal diet, respectively. The results showed that, growth performance, hematological indices were not affected by the addition of herbal extract mixtures in feed (p > 0.05). Fecal E. coli counts changed slightly with the bird age, however addition of herbal extract mixture reduced significantly number of fecal Salmonella counts. Further studies are needed to explore the effect of higher herbal extract levels on hematological indices and microbial counts in poultry.
Keywords | Alanine aminotransferase, Herbal extract, E. coli, Chicken, Salmonella, Hematological indices
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