Kajian Antibakteri Temulawak, Jahe dan Bawang Putih terhadap Salmonella typhimurium serta Pengaruh Bawang Putih terhadap Performans dan Respon Imun Ayam Pedaging
Abstract: This research was
conducted to investigate the antibacterial activity of powder of temulawak,
ginger and garlic to S.typhimurium using modified agar well method. Preliminary
study showed that garlic powder had the best antibacterial activity, therefore
it was further tested in a feeding trial to evaluate the effect on growth
performance and immune response in broiler chicken challenged with S.
typhimurium (ST). Experimental treatments were arranged in Completely
Randomized Design with four treatment and three replications (Negative control,
positive control, garlic powder and tetracycline). Seventy-two Day-Old-Chickens
with body weight 46,7 g strain “Hubbard Wonokoyo†were used in a 28
days experiment. Broiler chickens were fed garlic powder and tetracycline diets
for 10 days and then challenged orally with ST 4,1 x 1011 cfu. Body weight,
feed intake and salmonella colony in faeces were monitored. Blood serum was
collected at 18-d after infection. Results indicated that there was no
significant effect of garlic powder on body weight and feed intake, but feed
intake tended to decrease. However, feed conversion ratio of ration with garlic
powder was better than rations with tetracycline and other treatments.
Salmonella population in faeces also decreased with addition of garlic powder
in diets. Total protein serum was influenced by disease challenged. Serum
immunoglobulin (gamma globulin) was not influenced by disease challenged, but
addition garlic powder in diet tended to increase gamma-globulin concentration.
It can be concluded that garlic powder has antibacterial activity to
S.typhimurium. Furthermore, this result indicated that some beneficial effect
of dietary garlic powder at 2,5% supplementation on growth performance and no
effect on immune response in the presence of ST-challenge.
Penulis: K G Wiryawan, S
Suharti, M Bintang
Kode Jurnal: jppeternakandd050022
