Effect of conditioning temperature and retention time on pellet quality, ileal digestibility, and growth performance of broiler chickens

Santos, Ronan Omar Fernandes dos; Bassi, Lucas Schmidt; Schramm, V.G.; Rocha, Chayane da; Dahlke, Fabiano; Krabbe, Everton Luís; Maiorka, Alex

doi:10.1016/j.livsci.2020.104110

Cited by 8 publications

(5 citation statements)

References 22 publications

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“…The durability values obtained in this study ranged from 67.48±2.00 to 77.63±1.77. These values are consistent with earlier research, which reported that the durability index of broiler starter feed pellets ranged from 66.48% to 87.16% [11].…”

Section: Durabilitysupporting

confidence: 93%

Physicochemical quality of rice bran pellets using different binder materials

Napirah,

Isnaeni,

Bain

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Rice bran is one of the by-products of the agricultural industry that is widely used as animal feed. Rice bran generally exhibits voluminous and dusty characteristics during transportation and storage, requiring special processing techniques to facilitate handling. Pelleting is one of the feed processing techniques that can reduce the volume and dust of feed material, including rice bran. However, one of the determining factors for the quality of pellets is the binder material. This study aims to evaluate rice bran pellets’ physical and chemical qualities using different binder materials: commercial binder LignoBond DD, tapioca flour, corn flour, and sago flour. The research parameters include durability, density, relative density, organic matter content, dry matter content, and crude protein content of the rice bran pellets. The study’s results indicate that the type of binder significantly affected the durability, relative density, and dry matter content but did not affect the rice bran pellets’ density, organic matter content, or crude protein content. The use of 3% corn flour as a binder shows durability and relative density of pellets that are relatively similar to LignoBond DD. Corn flour has the potential for utilization as a binder with similar qualities to LignoBond DD.

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Section: Durabilitysupporting

confidence: 93%

Physicochemical quality of rice bran pellets using different binder materials

Napirah,

Isnaeni,

Bain

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…The current experiment was conducted during early spring and the diets were processed during a day with an average ambient temperature of <10°C. To achieve CT of 88°C, therefore, more heat (and moisture as heat was provided as steam) was applied ( dos Santos et al, 2020 ) to the diet. This may explain, at least in part, the atypically low enzyme recoveries observed.…”

Section: Discussionmentioning

confidence: 99%

High steam-conditioning temperature during the pelleting process impairs growth performance and nutrient utilization in broiler starters fed barley-based diets, regardless of carbohydrase supplementation

et al. 2021

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The influence of supplemental carbohydrase ( Carb ) and conditioning temperature ( CT ) on growth performance, nutrient utilization and intestinal morphometry of broilers (d 1–21) fed barley-based diets was examined in a 2 × 3 factorial arrangement, evaluating 2 levels of Carb (0 and 150 g/tonne of feed) and three CT (60, 74, and 88°C). A total of 288, 1-day-old male broilers (8 birds/cage; 6 cages/treatment) were used. The activities of endo-1,4-β- glucanase, endo-1,3 (4)-β-glucanase and endo-1,4-β-xylanase in the Carb were 800 BGU/g, 700 BGU/g and 2,700 XU/g, respectively. On d 21, ileal digesta was collected for the determination of nutrient digestibility. There was no significant interaction between Carb and CT for any tested parameter. Supplemental Carb, regardless of CT, increased weight gain ( WG ; P < 0.05) and reduced feed per gain ( F/G ; P < 0.001) by 30 g/bird and 6.5 points, respectively. Increasing CT to 88°C reduced ( P < 0.05) WG, but increased ( P < 0.05) F/G compared to the diets conditioned at 60° and 74°C. Regardless of CT, Carb enhanced ( P < 0.05) the digestibility of starch and AMEn by 1.15% and 32 kcal/kg, respectively. Compared to the diets conditioned at 60° and 74°C, CT at 88°C reduced ( P < 0.05) digestibility of dry matter, nitrogen, phosphorus, gross energy, and AMEn. Birds fed diets conditioned at 88°C showed lower ( P < 0.05) starch digestibility compared to those fed diets conditioned at 60°C. Conditioning at 88°C increased ( P < 0.05) jejunal digesta viscosity by 10.2% compared to diets conditioned at 60° and 74°C. Overall, Carb supplementation improved WG, F/G, starch digestibility and AMEn in broilers fed barley-based diets, irrespective of CT applied. Conditioning barley-based diets at 88°C impaired the ability of birds to utilize nitrogen, starch, phosphorus and energy, and consequently deteriorated WG and F/G. The lack of significant interactions between Carb and CT indicated that negative impacts caused by high CT on bird performance and nutrient utilization occurred regardless of Carb enzyme supplementation. Supplemental Carb per se could not remedy the adverse effects of high CT.

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“…This is related to the presentation of the A feed that was in flour, since when that is the case, the ingredients are ground and mixed homogeneously. Whereas, for the granulates, the feed undergoes a process that combines high temperature and humidity, which improves the physical quality of the granule, increases the consumption of feed but affects the digestibility of nutrients such as amino acids and energy (Loar et al, 2014;dos Santos et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

“…The above is related to the presentation of the feed, since although treatment A had the lowest consumption because it was a flour, its nutrients were not affected by high temperatures. On the contrary, what happened with treatment B was that the consumption was so high that the CA was affected, which is related to the temperature of the pelletizing since it decreases the digestibility of nutrients (protein and energy) and it is known that birds eat to satisfy these requirements (Lesson and Summer, 2005;dos Santos et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of three commercial feeds for the farming of Japanese quail (Coturnix japonica Temminck y Schlegel)

MARTINEZ

Hernández²,

Ávila-Ramos³

et al. 2022

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Objective: To evaluate, for the farming of Japanese quail (Coturnix japonica) three brands of feed, with different nutritional content, enzyme complexes, particle size and presentation, in the variables of production, weight and length of organs, height of intestinal villi and cost per quail. Design/Methodology/Approach: 300 young birds of both sexes were used; three commercial starter feeds of different brands (A, B and C) were evaluated. The response variables evaluated were feed consumed (AC), total feed consumed (ACT), live weight (PV), weight gain (GP), total weight gain (GPT), feed conversion (CA), total feed conversion (CAT), carcass yield, length, and weight of organs, as well as the size of the intestinal villi and the cost of the quail (CC). An analysis of variance was performed using the SAS® GLM procedure. Results: From week three the birds were classified by sex, and the lowest AC and best CA (p < 0.05) was obtained with treatment A in both sexes. Carcass yield was not affected by treatments (p>0.05); the longest and heaviest proventriculus and gizzard (p < 0.05) were for treatment B. Regarding the villi, it was found that the enzymes favored (p<0.05) their size. Limitations/Implications: The study showed that the size of the intestinal villi is influenced by the type of enzymes that are used, as well as by their concentrations or combinations. Findings/Conclusion: It is concluded that feed presentation influences the consumption of feed. Enzyme complexes improve the size of the intestinal villi.

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Effect of conditioning temperature and retention time on pellet quality, ileal digestibility, and growth performance of broiler chickens

Cited by 8 publications

References 22 publications

Physicochemical quality of rice bran pellets using different binder materials

Physicochemical quality of rice bran pellets using different binder materials

High steam-conditioning temperature during the pelleting process impairs growth performance and nutrient utilization in broiler starters fed barley-based diets, regardless of carbohydrase supplementation

Evaluation of three commercial feeds for the farming of Japanese quail (Coturnix japonica Temminck y Schlegel)

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