Year: 2025
Type: article
Abstract: This study aimed to evaluate the effect of different crude glycerin inclusions on the pelleting pro-cess and quality of pelleted feed for broilers in the initial (7–21d) and growth (22–42d) phase. The experi-mental diets were evaluated through variables such as electricity consumption (KWh/t), pelleting productivity (t/hour), Pellet Durability Index (PDI) and pellet temperature (°C). To accomplish the goals, an experimental randomized block design was applied, with four treatments (0, 4, 8 and 12% crude glycerin) and five repetitions of 250 kg feed. During each repetition at pelleting, energy consumption (kWh/t) was calculated using time and amperage data. Regression analysis was performed after the ANOVA results. In both types of processed feeds, there was significant (P<0.05) linear decrease in the electricity consumption (kWh/t), when diet was pelleted with increasing levels of crude glycerin. However, no significant effect (P>0.05) in pelleted feed produced per hour was observed. A linear increase (P<0.05) was though found in PDI and quadratic effect (P<0.05) regarding temperature of the produced pellets. We conclude that the crude glycerin is an effective enhancer of pelleting process once it improved the pellet quality and reduced electricity consumption at the feed mills.
Language: English
Subfield: Animal Science and Zoology
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W4412899309