Effect of phytase with or without multienzyme supplementation on performance and nutrient digestibility of young broiler chicks fed mash or crumble diets

Abstract

A total of 210 unsexed 1-day old Arbor Acres broiler chicks were wing banded and randomly distributed among 30 cages of 7 birds per cage keeping equal initial BW during days 1-20 of age. A factorial design (2×3) was used in which there were two feed forms (mash vs crumble diet) and three enzyme treatments (unsupplemented, phytase, phytase plus multienzyme). Each treatment was replicated 5 times with 7 chicks per replicate. Body weight (BW), body weight gain (BWG) and feed conversion ratio (FCR) of fed chicks were significantly improved when the crumble diet was administered. However, feed intake of chicks fed on the crumble feeds was significantly lower than those fed the mash diet. Digestibility of ether extract and crude fiber was significantly greater in groups fed the crumble diet than those fed the mash diet. Enzyme supplementation significantly and similarly increased growth and production index, and improved FCR. Also greater digestibility of crude protein and crude ash was observed but growth during days 8-14 of age and crude fibre digestibility were significantly greater in chicks receiving the multienzyme plus phytase supplement than those receiving phytase alone. Crumble feed supplemented with multienzyme resulted in the highest performance and nutrient digestibility of broilers during days 1-20 of age.

<b>Intestinal carbohydrase activity and sodium-glucose transporter expression in layers fed diets containing wheat and rice brans supplemented with phytase

“…Regarding inclusion of wheat bran, result of current study are in agreement with the results of Mathlouthi, Larbier, Mohamed, and Lessire (2002), but application of enzyme showed inconsistency owing to the difference in enzyme used, nutrient concentration, type of diet and birds age. The application of phytase in this study did not improved performance which disagreed with previous reports (Tangendjaja et al, 2002;Selle & Ravindran, 2007;Liu et al, 2008b;Attia et al, 2012). Liu, Ru, Cowieson, Li, and Cheng (2008b) reported that supplementation with phytase improve feed intake, body weight, and gain to feed intake ratio of broilers.…”

“…The effect of dietary phytate and phytase supplementation on the production performance and nutrient digestibility of poultry have received remarkable attention in the scientific studies (Liu, Ru, Li, & Cowieson, 2008a;Attia et al, 2012).…”

Evaluation of Different Levels of Canola Meal on Performance, Organ Weights, Hepatic Deiodinase Gene Expression and Thyroid Morphology in Broiler Chickens

“…Therefore, the difference in response of broilers to dietary inclusion of CM between the current study and that of our previous research with regards to relative weights of pancreases and cecal could be due to the differences in Journal of Poultry Science,54 (4) phytate content of CM based diets and fermentable sugars content of SBM based diets, respectively. Phytase was shown to improve phytate, amino acids and energy utilization of ducks (Attia, 2003), laying Japanese quail hens (Attia et al, 2008), and broiler chickens (Attia et al, 2012).…”

Thyme oil (Thyme vulgaris L.) as a natural growth promoter for broiler chickens reared under hot climate

“…The survival rate (SR, 100 -mortality rate) during 1-28 days of age was recorded. The European production efficiency index (EPEI) was calculated, as cited by Attia et al (2012).…”