IJBST 2018 Volume 11 Issue 4
International Journal of BioSciences and Technology (IJBST) ISSN: 0974-3987
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Effect of sodium hydrogen carbonate (NaHCO3) on heat stress reduction of broiler chicken fed high energy diet. Uwaeziozi, U. C and Emenalom O.O. IJBST (2018), 11(4):36-45 http://doi.org/10.5281/zenodo.1478578
Title:
Effect of sodium hydrogen carbonate (NaHCO3) on heat stress reduction of broiler chicken fed high energy diet
Authors & Affiliation:
Uwaeziozi, U. C and Emenalom O.O
Department of Animal Science, Federal University Of Technology Owerri, Nigeria
uche19822000@gmail.com, emenalom62@gmail.com
ABSTRACT
Effect of sodium hydrogen carbonate (NaHCO3) administration on broiler chicken fed high energy diet were investigated in an experiment with 48 broiler birds within the last 4 weeks of the experiment. The study which lasted for 8weeks commenced with day old chicks and were fed commercial starter feed for the first 4weeks after which three different experimental diets were formulated.. Birds were randomly assigned to the three treatment groups, each treatment consisting of 16 birds with 4 replicates of 4 birds per replicate. Treatments groups are the control (T1) energy diet of 2900kcal, (T2) energy diet of 3300kcal and (T3) energy diet of 3300kcal with the addition of NaHCO3. At 5 weeks, the hematological mean values across the treatment group showed the RBC(x1012/l) of diet 3(2.71) was significantly (p<0.05) higher than Diet 1(2.12) and Diet 2(2.55). MCV(µ3) results were significantly different from each other with Diet 1 having the highest value. MCHC (%) of Diet 1 was significantly (p<0.05) higher than the other groups. WBC (x106/l) of Diet 2 was significantly (p<0.05) higher than the other treatment groups. At 6 weeks MCV(µ3), MCH(µµg) and MCHC (%) of Diet 3 were significantly (p<0.05) higher compared to the other diet groups. WBC (x106/l) of Diet 2 was significantly (p<0.05) higher than other groups. At 8 weeks PCV (%), hemoglobin (g/dl), heterophils (%) and eosinophils (%) of Diet 3 were significantly (p<0.05) higher compared to the results of the other treatment groups. WBC(x106/l) was highest in Diet 1(29.90). At 8 weeks, mean values of organ weight(g) and crop Ph revealed that the weight of the Adrenal gland and liver were significantly (p<0.05) higher in Diet 1 compared to other groups while the weight of the heart was significantly (p<0.05) higher in both Diets 1 and 2 compared to those fed Diet 3. Crop Ph was higher (6.72) in Diet 3 compared to Diet 1 (6.15) and Diet 2 (6.36) both of which were not significantly different from each other. The results of the performance values at 8 weeks showed that live weight (kg) and dressed weight (kg) across the treatment groups were not significantly different but abdominal fat (g) was significantly (p<0.05) higher in Diet 1(38.18) compared to diet 2 (30.74) and Diet 3 (31.20). In conclusion, increase in feed energy plus inclusion of NaHCO3 in the diet influenced crop pH, PCV RBC and WBC values.
Keywords: Broiler; sodium hydrogen carbonate (NaHCO3); heat stress; Diet