Research Article
Volume 5 Issue 8 - 2020
Impact of Dietary Xylanase-Beta-Glucanase Supplementation on the Performance of Broiler Chickens Fed Sorghum-Soybean-based Diet
Kennedy Oluwatosin Oluwamoroti Ohotuowo1*, Izuki Esther Darlington1, Ozung Pascal Ogar1, Henry Affiong Joseph1, Mbaba Ekaette Ndifreke2, Iso Isong Ekong3 and Ubua Jude Abeokong4
1Department of Animal Science, Faculty of Agriculture, University of Calabar, Calabar, Nigeria
2Department of Animal Science, Faculty of Agriculture, University of Uyo, Uyo, Nigeria
3Department of Animal Science, Faculty of Agriculture, Cross River University of Technology, Obubra Campus, Nigeria
4Department of Animal Science, Faculty of Agriculture, Taraba State University, Jalingo, Nigeria
*Corresponding Author: Kennedy Oluwatosin Oluwamoroti Ohotuowo, Department of Animal Science, Faculty of Agriculture, University of Calabar, Calabar, Nigeria.
Received: July 01, 2020; Published: July 23, 2020


This study evaluated the effect of xylanase-β-glucanase (Axtra®XB) blend on the performance, carcass characteristics, gut morphology, haematology and litter quality of broiler chickens fed sorghum-soybean-based diet. A total of 450, day-old male (Ross 308) chicks (40.00 + 0.55g) was assigned to five groups, with 6 replicates per treatment and 15 birds per replicate pen. The experimental diets were; maize-soybean, sorghum- soybean (without Axtra®XB enzyme), 250, 500 and 750 mg Axtra®XB per kg of sorghum-soybean diet. A two-phase (starter - d 1 to 28 and finisher - d 29 to 56) feeding program was employed under the deep litter system. Growth performance, body weight, weight gain, feed intake, feed conversion ratio and mortality were weekly monitored. At d 56, six birds were randomly picked per replicate for carcass and hematological analyses. Data were subjected to the completely randomized design using the general linear models procedure of GENSTAT (2012) and Duncan’s multiple range test was used to compare treatments (P < 0.05). There were significant (P < 0.05) effects of dietary treatments on the growth performance, prime cuts, relative organ weights, gastrointestinal tract morphometry, haematological indices and litter quality of broilers. Compared to birds on maize-soybean diet, 0.72 - 1.42% (P = 0.032), 1.82% (P = 0.043) and 19.82% improvements were recorded in daily weight gains, feed conversion ratio and mortality rate, respectively in birds fed sorghum-soybean diets especially at 750 mg Axtra®XB supplementation. Dressing percentage and breast yield had increased by 0.59% and 6.65 - 8.00%, respectively with reduced organ weights, gastrointestinal length and 40.82% abdominal fat pad in birds fed up to 500 mg Axtra®XB supplemented diet. Litter quality also improved (P < 0.05) at increasing level of supplementation. Haematological indices also varied (P < 0.05) between dietary treatments. At increasing level of Axtra®XB supplementation, significant reduction in the levels of white blood cells, haemoglobin and packed cell volume were observed. The results indicated improved broiler performances following dietary Axtra®XB supplementation but beyond 500mg/kg diet the health of the birds could be compromised.

Keywords:Enzyme Blend; Growth Response; Broilers; Carcass Yield; Litter Quality; Axtra®XB


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Citation: Kennedy Oluwatosin Oluwamoroti Ohotuowo., et al. “Impact of Dietary Xylanase-Beta-Glucanase Supplementation on the Performance of Broiler Chickens Fed Sorghum-Soybean-based Diet”. EC Veterinary Science 5.8 (2020): 80-93.

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