Growth, carcass characteristics, and meat quality of broilers fed a low-energy diet supplemented with a multienzyme preparation

Abstract

The effect of a low-ME diet with a multienzyme (Kemzyme Plus, Kemin, Des Moines, IA) blend on performance, meat quality, and carcass traits was evaluated in Hubbard broiler chicks. A total of 120 Hubbard broiler chicks were allocated to the following 4 experimental groups and every group was separated into 6 replicates, with 5 birds per replicate: control (3,180 kcal/kg of ME), control + 0.50 g/kg diet of enzyme (Cont-Enz), low-ME diet (3,080 kcal/kg), and low-ME + 0.50 g/kg diet of enzyme (low-ME-Enz). The trail lasted for 16 D (32 to 48 D of age). No significant differences in growth parameters or carcass traits were observed among treatments. However, liver weight increased with the low-ME-Enz diet ( P = 0.038). The low-ME diet recorded the highest weight for the bursa ( P = 0.043) and thymus ( P = 0.019). Dietary treatments had significant impacts on the length of duodenum, ileum, and cecum, as well as the weight of duodenum. The length of duodenum, ileum, and cecum increased with enzyme supplementation. The myofibril fragmentation index was lower with the Cont-Enz, low-ME, and low-ME-Enz diets than with the control diet ( P = 0.043). The shear force increased with the low-ME-Enz diet ( P = 0.022) than the control diet. Dietary treatments influenced breast meat yellowness ( P = 0.019), whereas the low-ME diet had the lowest yellowness at the slaughtering age. The dietary treatments affected the breast meat pH ( P = 0.001), with the control diet having the highest pH value after 24 hours. Thus, there was no effect of low-ME or enzyme supplementation to the control or low-ME diet on growth performance or carcass yield. However, feeding a low-ME diet or Cont-Enz preparation influenced organ and small intestine weights and meat characteristics.

Effect of feeding low energy diets with non-starch polysaccharides enzymes on growth performance and some physiological indices in broilers

“…The results of the carcass organs were in agreement with the other researchers' results (Liu et al, 2007;Hussein et al, 2019Hussein et al, , 2020. Farran et al (2010) reported that the muscle weights were not affected by the inclusion of enzyme preparations.…”

“…However, the combination of xylanase, amylase, and protease works better than protease supply alone (Olukosi, 2007). This method could reduce the number of raw matter ingredients needed for poultry diets such as yellow maize and soy meal, and reduce production costs (Hussein et al, 2019(Hussein et al, , 2020.…”

Gut Microbiota Dynamics, Growth Performance, and Gut Morphology in Broiler Chickens Fed Diets Varying in Energy Density with or without Bacitracin Methylene Disalicylate (BMD)

“…Conflicting with our findings, Cho et al [ 45 ] concluded that emulsifier and multienzyme in low-density diets could increase the relative bursa weight. A recent study reported that a low-energy-density diet could increase chicken bursa weight [ 46 ]. High-energy diet could also be associated with the roles of the bursa in poultry birds.…”

Probiotics in poultry feed: A comprehensive review

“…Feed additives are generally considered materials used to enhance the effectiveness of nutrients and exert their effects on improving poultry performance (Ashour et al., 2020; Farag & Alagawany, 2019; Saeed, Alagawany, et al., 2019). There are a number of feed additives used in poultry feed, such as antibiotics, probiotics, oligosaccharides, enzymes and organic acids (Bin‐Jumah et al., 2020; Elgeddawy et al., 2020; Hussein et al., 2020; Windisch et al., 2008). They are included in the diet of poultry and animals for promoting growth through their potential effect in increasing feed intake (FI; Demir et al, 2003; Mahrose et al., 2019; Wang et al., 2019; Yatoo et al., 2017).…”