TY - JOUR
T1 - Impact of exogenous carbohydrases and phytase on growth performance and nutrient digestibility in broilers
AU - Lu, H.
AU - Adedokun, S. A.
AU - Preynat, A.
AU - Legrand-Defretin, V.
AU - Geraert, P. A.
AU - Adeola, O.
AU - Ajuwon, K. M.
PY - 2013/6
Y1 - 2013/6
N2 - The effect of supplementing corn-soybean-based diets with Rovabio® Max AP, an exogenous enzyme mix with carbohydrase (xylanase and β-glucanase) and phytase activities to broiler chickens was evaluated. Male Ross 708 broilers were assigned to four diets: positive control (PC), negative control (NC), deficient in metabolizable energy (ME), crude protein (CP), calcium (Ca) and non-phytate phosphorus (nPP), relative to the PC, by 100 kcal kg-1, 5 g kg-1, 1.1 g kg-1 and 1.6 g kg-1, respectively, in the starter and grower diets; and NC +Rovabio® at 0.05 or 0.075 g kg-1 diet. Starter diets were fed from day 0 to day 21 and grower diets from day 22 to day 42. Body weight (BW) and body weight gain on days 22 and 42 were increased (P <0.05) by enzyme supplementation. Enzyme addition increased (P <0.05) feed intake from day 22 to day 42 and overall (day 0 to day 42). Gain to feed ratio (G:F) was significantly increased (P<0.05) with enzyme supplementation during both starter and grower phases. Enzyme addition increased (P<0.05) serum phosphorus (P) concentration on day 21. On day 42 enzyme supplementation increased (P <0.05) the apparent ileal digestibility of P, dry matter (DM), energy, and N. Addition of a combination of carbohydrases (xylanase and P-glucanase) and phytase to corn-soybean-based diets deficient in ME, CP, Ca and P resulted in a significant increase in growth performance and utilization of P, DM, energy and N in broiler chickens.
AB - The effect of supplementing corn-soybean-based diets with Rovabio® Max AP, an exogenous enzyme mix with carbohydrase (xylanase and β-glucanase) and phytase activities to broiler chickens was evaluated. Male Ross 708 broilers were assigned to four diets: positive control (PC), negative control (NC), deficient in metabolizable energy (ME), crude protein (CP), calcium (Ca) and non-phytate phosphorus (nPP), relative to the PC, by 100 kcal kg-1, 5 g kg-1, 1.1 g kg-1 and 1.6 g kg-1, respectively, in the starter and grower diets; and NC +Rovabio® at 0.05 or 0.075 g kg-1 diet. Starter diets were fed from day 0 to day 21 and grower diets from day 22 to day 42. Body weight (BW) and body weight gain on days 22 and 42 were increased (P <0.05) by enzyme supplementation. Enzyme addition increased (P <0.05) feed intake from day 22 to day 42 and overall (day 0 to day 42). Gain to feed ratio (G:F) was significantly increased (P<0.05) with enzyme supplementation during both starter and grower phases. Enzyme addition increased (P<0.05) serum phosphorus (P) concentration on day 21. On day 42 enzyme supplementation increased (P <0.05) the apparent ileal digestibility of P, dry matter (DM), energy, and N. Addition of a combination of carbohydrases (xylanase and P-glucanase) and phytase to corn-soybean-based diets deficient in ME, CP, Ca and P resulted in a significant increase in growth performance and utilization of P, DM, energy and N in broiler chickens.
KW - Broiler chicken
KW - Carbohydrase
KW - Nutrient digestibility
KW - Phytase
UR - http://www.scopus.com/inward/record.url?scp=84878410336&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84878410336&partnerID=8YFLogxK
U2 - 10.4141/CJAS2012-138
DO - 10.4141/CJAS2012-138
M3 - Article
AN - SCOPUS:84878410336
SN - 0008-3984
VL - 93
SP - 243
EP - 249
JO - Canadian Journal of Animal Science
JF - Canadian Journal of Animal Science
IS - 2
ER -