Effect of corn or sorghum in combination with soybean meal or mungbean as feed ingredients on the serum antibody titres to NDV vaccine in broiler chickens

Abstract: A research was carried out to study the effect of feed types in the diet based on corn or sorghum in combination with soybean meal or broken green beans on titre antibody to NDV vaccine of broilers. Three hundreds day old chicks broilers with initial body weight of 46.35±4.66 grams were randomly assigned into four treatment groups i.e. T1 (diet based on corn and soybean meal), T2 (diet based on corn and green-bean), T3 (diet based on sorghum and soybean meal), T4 (diet based on sorghum and green-bean). Isoenergy and isoprotein diet and water were given ad libitum. NDV vaccines were given via eyedrop on day 4 and intramuscularly on day 21. Serum antibody titres were measured on day 38, 42 and 48 by Haemaglutination Inhibition Test and expressed as Geometric Mean Titre (log2). Antibody titre to NDV vaccine was already detectable on day 38 and the value was highest in T4, reaching 5.2 and lowest in T3 i.e. 3.6 (P<0.05). On day 42 the titre of all groups were increased reaching a value of greater than 5.0 (protective) except in T3 which remains lower than 5.0 (not protected). On day 48 the highest titre was reached in T2 (6.4), while T3 remained low below 5 (4.2). These results showed that the types of feed ingredients in the diet can influence antibody titre against NDV vaccination. Key words: Sorghum, green beans, antibody titre, NDV vaccin