Journal Of Tropical Biosciences
Volume No: 11|
Page No: 126
| FullText PDF
Title: RESPONSE OF BROILER CHICKENS TO ADMINISTRATION OF WATER CONTAINING DIFFERENT CONCENTRATIONS OF HYDROCHLORIC ACID AT TWO AGE GROUPS
JIYA, E.Z, AYANWALE, B.A, ADEGBOYE, E. A. AND ALABI, O. J.
DEPARTMENT OF ANIMAL PRODUCTION, FEDERAL UNIVERSITY OF TECHNOLOGY MINNA
An eight weeks (56 days) experiment was conducted to evaluate the response of broiler chickens to water treated with different concentrations of hydrochloric acid (HCl) at two age groups (5 to 56 days and 21 to 56 days). Two hundred and forty Abor-Acre broiler chicks were used and randomly allotted to two age groups (5 to 56 days and 21 to 56 days) and four treatments which were replicated three times with 10 birds per replicate. Treatments 1, 2, 3 and 4 contained HCl concentrations of 0 ppm, 1500 ppm, 2500 ppm and 3500 ppm, respectively, in drinking water. The birds were managed on deep litre system and fed ad libitum. The results from group 1 (day 5 to 56 days of different concentrations of HCl inclusion in water) showed no significant (P>0.05) difference in feed intake and feed conversion ratio at the starter phase. However, final body weight and body weight gain were significantly (p<0.05) different. At the finisher phase all the parameters measured were significantly (p<0.05) affected. The results from group two (day 21 to 56 days of different concentrations HCl inclusion in water), final body weight, body weight gain and weekly feed intake were significantly (p<0.05) different. In finisher phase, there was no significant (p<0.05) difference in feed intake. However, there were significant (p<0.05) difference in final body weight, body weight gain, weekly hydrochloric acid treated water intake and feed conversion ratio. The results of the nutrient digestibility showed significant differences (p<0.05) in all the parameters measured in the phases (days 5-56 and 21-56) respectively. It is therefore recommended that lower concentrations of hydrochloric acid of 1500ppm given from younger stage holds the potential to be used as growth promoter supplement in broiler chickens.
It was therefore concluded that hydrochloric acid addition to drinking water had little or no significant effects on feed intake. However, HCL included during starter phase improved weight gain with lower concentration (1500ppm). This study further revealed that increased HCL inclusion in drinking water from 1500 ppm to 3500 ppm at 21 to day 56 lowered weight gain in broiler chickens and also lowered feed conversion ratio at the finisher stage. It is therefore recommended that lower concentrations of hydrochloric acid (1500ppm) given at a younger stage for period of starter phase holds the potential to be used as a growth promoter supplement in broiler chickens which will serve as an alternative to antibiotics and arsenic based feed additives, with safe and no threat of adverse residual effects on humans.