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

Abstract

his study aimed to examine effects of pellet size and binder (calcium lignosulfonate, CLS) levels on performance and carcass during finisher period. About 180 one-day old Arbo Acres chicks were allocated on 6 groups of 30 birds each. Birds of all groups were offered the same starter and grower diets and then the experimental finisher diets were presented to birds. Starting from 29 days, finisher diets were offered in a (2*3) factorial design. (T1) diet was pelleted 3.5 mm with CLS 0.2% as control diet, (T2): 3.5 mm with CLS 0.4%, (T3): 3.5 mm with CLS 0.8%, (T4): 4.5 mm with CLS 0.2%, (T5): 4.5 mm with CLS 0.4%, (T6): 4.5 mm with CLS 0.8%. Results showed that live body weight (LBW), daily weight gain (DWG), daily feed intake (DFI) or feed conversion ratio (FCR), was insignificantly affected by treatments. Additionally, carcass traits; dressing percentage, gizzard, heart percentages, were insignificantly affected by neither pelleting size nor CLS levels. Also, performance index (PI), production efficiency factor (PEF), protein efficiency ratio (PER) and efficiency of energy utilization (EEU) were insignificantly affected by treatments. While relative economic efficiency (REE) recorded higher value with 4.5 mm pellets with CLS 0.2%. It could be concluded that using finisher diet pelleted in 4.5 mm is favorable for productive performance of birds and feed pelleting quality especially when CLS was added at level of 0.2%.

Growth performance, plasma metabolites, meat quality, and meat and lipid health indices of New Zealand White rabbits as affected by dietary dried tomato pomace powder supplementation during the summer season

“…Vitamin E has also been shown to stimulate the immune system responsible for energy partition away from growth to inhibit lipid catabolism (Peiretti et al, 2013). In contrast, El-Medany et al (2008) showed non-significant alterations in dressing and carcass weights when rabbits were fed diets containing 30 and 45% dried tomato pomace. In contrast, Elwan et al (2018) found that 1 and 2% DTPP supplementation increased the carcass weight of rabbits.…”

“…Conversely, Elwan et al (2018) demonstrated that albumin, A/G ratio, and creatinine concentrations were decreased by tomato pomace supplementation at 1 and 2% levels in rabbit diets, whereas globulin concentration was increased. Likewise, El‐Medany et al (2008) reported that plasma cholesterol was reduced by rabbit‐fed diets, including dried tomato pomace up to 30.0%.…”

“…The increase in antioxidant agents of DTPP groups may owe to the protective effects of phenolic compounds, including the prevention of lipid oxidation and the increase in the antioxidant capacity (El‐Medany et al, 2008). Plant‐derived natural antioxidants act as a feed supplement for animal diets and are rich in PUFAs required for lipid oxidation prevention and higher‐quality meat characteristic preservation (Elwan et al, 2018).…”

Dietary spirulina platensis a promising growth promotor and immune stimulant in broiler chickens

“…The control group (G1) was fed on a control normal ration for 42 days. 4 different treatment groups (G2, G3, G4, G5) administrated a basal ration mixed using G2 0.5gm / kg according to [4] G31gm/kg according to [4] G4 2gm/kg according to [5] G5 [8] and RBC counts According to Haile and Chanie [9], Hb According to Wintrobe [7],…”