ArticlePoultry science2026
Does in-transit feeding of day-old chicks enhance potato peel meal utilization? Impact on transport stress, gastrointestinal organ weight and performance in broilers.
Article in Poultry science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The use of waste-derived feed ingredients to support sustainable poultry production has gained increasing attention. The potential of incorporating potato peels, an agro-industrial by-product, into broiler feed remains unexplored. Study 1 (preliminary study) evaluated the effects of dietary inclusion (0% vs. 10%) of potato peel meal (PP) with or without a multi-carbohydrase (E1) supplementation on growth performance of Cobb 500 broilers from d 14 to 33 of age in a 2 × 2 factorial arrangement (n=6). Incorporating 10% PP into diets suppressed growth and increased gizzard weight (P ≤ 0.05) compared to those fed 0% PP. Building on these findings, Study 2 was conducted to investigate whether the negative effects on growth could be mitigated by reducing PP inclusion level, supplementing a modified multi-carbohydrase (E2) and providing nutrients during transportation. A total of 624 newly-hatched Ross 308 chicks were assigned to a 2 × 4 factorial design (n=3) with two in-transit feeding practices (AFW: access to feed and water during transportation vs. NFW: no access to feed and water) and four dietary treatments including: 0% PP (control), 5% PP, 5% PP+E2, and 10% PP+E2, which were provided ad libitum from d 1 to 33. AFW improved chick quality (P ≤ 0.05) with an increased body weight gain, higher cloaca temperature, and lower plasma corticosterone level post-transportation. In addition, AFW increased body weight and reduced mortality by d 8 of age (P ≤ 0.05). Regardless of in-transit feeding, broilers fed 10% PP+E2 or 5% PP exhibited comparable body weight, body weight gain, feed intake and FCR to those fed control diet. Among AFW birds, 5% PP+E2 improved FCR (P ≤ 0.05) compared with 5% PP and 10% PP+E2 during d 26-33 of age. These findings suggest that PP can be included up to 10% when supplemented with E2 without compromising growth performance. Furthermore, the in-transit feeding practice alleviates transportation stress, supports early growth and enhances FCR in birds fed moderate levels of PP with enzyme supplementation.
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