Influence of Different Time and Frequency of Multienzyme Application on the Efficiency of Broiler Chicken Rearing and Some Selected Metabolic Indicators

Abstract

This study looks at the influence of time and/or frequency of multienzymes application on productivity, carcass characteristics, metabolic profile, and red blood cell characteristics of broiler chickens. Two hundred and eighty, one-day-old Arbor Acres broiler male chicks were randomly distributed into seven treatment groups. Each group consisted of eight replicates of five unsexed birds. The same basal diet was fed in a crumble form to all experimental groups: group one was the unsupplemented control that did not receive multienzymes supplementation. Additionally, multienzymes in water were supplemented in six groups in a factorial arrangement, including three times of application (starter time only which included days 1–21 of age, grower time only which included days 22–37 of age, and starter and grower time which included days 1–37 of age) and two application frequencies (continuously or intermittently). In the continuous application, the multienzymes were added to water over 24 h in a day, while in the intermittent frequency multienzymes were added to water for one day followed by a day off according to the time of application. Regardless of time and frequency of application, enzymes supplementation significantly increased growth rate, feed intake, European Production Index (EPI), protein digestibility, serum albumin, and high-density lipoprotein (HDL). Intermittent multienzymes application during days 1–21 of age or days 22–37 of age resulted in significantly greater growth, better feed conversion rate (FCR), and higher EPI of broilers during the whole rearing period than those under continuous multienzymes during different growth periods. Besides, intermittent multienzymes addition during days 1–37 of age improved FCR of broiler chicks compared to constant application. The intermittent addition of multienzymes during days 1–21 of age or 22–37 days of age and days 1–37 of age caused a significant increase in dry matter (DM) digestibility than the continuous application. The intermittent addition of multienzymes during days 1–21 of age significantly increased the digestibility of crude protein (CP), ether extract (EE), and crude fiber (CF) compared to continuous application. A similar trend was shown in the digestibility of CP and EE due to intermittent use during days 22–37 of age. Intermittent enzymes addition significantly increased high density lipoprotein (HDL) of groups receiving enzymes during days 22–37 of age compared to continuous application of enzymes. In conclusion, the use of multienzymes intermittently during days 1–21 of age and 22–37 days of age significantly increased growth, improved FCR, and raised EPI. Intermittent use can replace continuous multienzyme applications which can save 68.6% of the cost, even though further research is need from the cost-saving edge.

Effect of Different Levels of Optizyme and Phytase Enzymes and Their Interactions on the Performance of Broiler Chickens Fed Corn/Soybean Meal: 3. European Production Efficiency Factor, European Broiler Index and Some Immune Organs

“…Date presented in (Table 2), showed that European Production efficiency Factor (EPEF) and European Broiler Index (EPI) did not significant (P<0.05) affected by either Optizyme or Phytase enzyme levels or by their interactions. The obtained results are disagreement with Attia et al (2020) who showed that enzyme application increased EPI compared to the unsupplemented control. El found that Phytase supplementation significantly improved production index.…”

Performances of Crossbred Chickens Fed Fermented Papaya Leaf and Seed Powder at High Stocking Density

“…In support of our result, Amer et al (2020) pointed out that dietary supplementation of AlphaGal (galactosidase; EC 3.2.1.22) also decreased the blood concentration of HDL in broiler chickens. In contrast, however, Attia et al (2020) pointed out that multienzyme treatment increased HDL level in the serum without affecting the apparent digestibility of crude fiber of broilers. The variations in chicken breeds, enzymes (types and doses), feeds, and other trial circumstances may be accounted to the various results above.…”

“…The SOD is an inducible enzyme, and that free radical is the prominent factor inducing the production of SOD in poultry (Surai, 2016). Taken together, the capacity of multienzyme in reducing the production of free radicals (Attia et al, 2020) could therefore be attributed to the lower need of SOD for neutralizing the free radicals. Compared to LSD, the chicks in HSD+FPLS and HSD+FPLS+mE groups showed higher SOD levels.…”

Addition of Synbiotic Pediococcus pentosaceus Strain N6 Isolate and Cassava Peel to the Gastrointestinal Profile of Super Native Chickens

“…Cassava peels are obtained from opaque factory waste and tape making. Method [9], cassava peel processing is done by separating the inner part from the outer skin. Furthermore, the inner epidermis of cassava is taken.…”