Influence of feed ingredients with pellet-binding properties on physical pellet quality, growth performance, carcass characteristics and nutrient retention in broiler chickens

Abstract

The influence of inclusion of pellet binder on physical pellet quality, growth performance, carcass characteristics and total tract apparent retention of nutrients was examined. Broiler starter (Days 1–21, pellet diameter: 2.5 mm) and finisher (Days 22–42, pellet diameter: 4 mm) diets were formulated and then allocated to one of the seven treatments including control diet, and diets including sodium bentonite (10 and 20 g/kg), wheat gluten (10 and 20 g/kg) and wheat (100 and 200 g/kg). All ingredients used as a pellet binder significantly (P < 0.05) increased the pellet-durability index compared with control diet. Wheat gluten and wheat at both inclusion rates were significantly (P < 0.05) more efficient than was sodium bentonite in improving pellet hardness. From Day 1 to Day 42, chickens fed 10 g/kg wheat gluten and 100 and 200 g/kg wheat gained significantly (P < 0.05) more weight than did control. During starters, birds fed 200 g/kg wheat showed the highest feed intake (P < 0.05). On Day 42, all the pellet binders resulted in a heavier heart weight than in the control (P < 0.05). At Day 21, the length of ileum was significantly (P < 0.05) higher in birds fed 10 and 20 g/kg sodium bentonite, 10 g/kg wheat gluten and 200 g/kg wheat, but at Day 42, it was greater in birds fed 20 g/kg wheat gluten and 200 g/kg wheat than in those fed the control diet. Inclusion of wheat gluten (10 and 20 g/kg) and wheat (100 and 200 g/kg) increased (P < 0.05) fat apparent retention. Birds fed 20 g/kg wheat gluten had a significantly (P < 0.05) higher total tract apparent retention of crude fibre, also calcium apparent retention improved by wheat gluten inclusion at concentrations of 10 and 20 g/kg compared with control (P < 0.05). Overall, inclusion of 10 g/kg wheat gluten, and 100 and 200 g/kg of wheat improved physical pellet quality and weight gain in broilers.

Effect of Pelleting Size and Pellet Binder Level on Broiler Chicken Performance.

“…While, the values of other carcass traits indicated that, all groups were significantly (P>0.05) similar. In the same trend, Moradi et al (2018) indicated that higher carcass weight was recorded with broilers fed highquality (90% intact pellets) and medium quality (70% intact pellets) feeds, rather than ground pellets feeds (100% fine). Also, Corzo et al (2011) observed heavier carcasses in birds fed 64% pellets compared with 32% pellets and mash diets.…”

Maintaining the physical quality and digestibility of pellet feed through the use of plant-based pellet binder

“…The presence of starch in the process of water and heat penetration simultaneously into the starch granule causes granule development and has an impact on pellet size [ 21 ]. The stack angle is broken down into various categories, including 20°C–30°C for materials that flow effortlessly, 30°C–38°C for materials that flow easily, and materials that are medium range from 38°C to 45°C; difficult-to-flow materials range from 45°C to 55°C [ 22 ]. This demonstrates how using plant-based adhesives alters the pile’s angular value.…”

Effect of different types and levels of fat addition and pellet binders on physical pellet quality of broiler feeds

“…Our results indicate that 2% Ben in the diets with high fat level is not sufficient to prevent PDI reduction. In fact, Ben has a water holding capacity and volume increasing properties (Moran, 1989) which increases PDI (Moradi et al, 2018). Attar et al (2018) suggested that a higher dosage of Ben (>1.5%) may be required in a commercial situation in high energy density diets such as broiler finisher diets.…”

“…Moreover, it increases a risk of mold growth in pelleted feed and consequently reduces shelf life of feed (Lundblad et al, 2009). The second solution is solid PBs addition such as bentonite ( Ben ) (Salmon, 1985; Salari et al, 2006; Attar et al, 2018; Moradi et al, 2018) and calcium lignosulfonate ( CaLS ) (Acar et al, 1991; Corey et al, 2014). Therefore, the aim of this study was to evaluate the effect of different levels and types of mixer-added fat (SO and CFP) and solid PBs (Ben and CaLS) on PPQ parameters of practical corn-soybean based diets under short-term conditioning situation.…”