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Importance of adapted digestion conditions to simulate in vitro lipid digestion of broilers in different life stages
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Daphne Michelsa, *, Sarah H.E. Verkempincka, Agnese Panozzob, Karen Vermeulenb, Marc E. Hendrickxa, Liesbet Thijsb, Tara Grauweta
Animal Nutrition | 2023, 12(1) : 151 - 158
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Animal Nutrition | 2023, 12(1): 151-158
• Original Research Article •
Importance of adapted digestion conditions to simulate in vitro lipid digestion of broilers in different life stages
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Daphne Michelsa, *, Sarah H.E. Verkempincka, Agnese Panozzob, Karen Vermeulenb, Marc E. Hendrickxa, Liesbet Thijsb, Tara Grauweta
Affiliations
  • aLaboratory of Food Technology and Leuven Food Science and Nutrition Research Centre (LFoRCe), Department of Microbial and Molecular Systems (M2 S), KU Leuven, Leuven, 3001, Belgium
  • bKemin Animal Nutrition and Health, Kemin Europa N.V., Herentals, 2200, Belgium
Published: 2023-03-10 doi: 10.1016/j.aninu.2022.09.008
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In vitro digestion studies demonstrate large potential to gain more and quicker insights into the underlying mechanisms of feed additives, allowing the optimization of feed design. Unfortunately, current in vitro digestion models relevant for broiler chickens lack sufficient description in terms of protocols and standardisation used. Furthermore, no distinction is made between the different life phases of these animals (starter, grower, and finisher). Hence, our research aimed to establish adapted in vitro digestion conditions, corresponding to the 3 life phases in broilers, with specific focus on lipid digestion. The effect of 3 different bile salt concentrations of 2, 10, and 20 mM, and 3 different lipase activities of 5, 20, and 100 U/mL, on in vitro lipid digestion kinetics were evaluated using a full factorial design. These values were selected to represent starter, grower, and finisher birds, respectively. Our findings showed that the extent of lipid digestion was mainly influenced by lipase activity. The rate of lipid digestion was affected by an interplay between bile salt concentration and lipase activity, due to possible lipase inhibition at certain bile salt concentrations. Overall, this work resulted in 3 in vitro lipid digestion models representative for starter, grower, and finisher birds. In conclusion, this research showed the impact of adapted in vitro digestion conditions on lipid digestion kinetics and thus the need for these conditions relevant for each life phase of broilers.

Lipolysis  /  Lipase activity  /  Bile salt  /  In vitro digestion  /  Broiler chicken  /  Emulsion
Daphne Michels, Sarah H.E. Verkempinck, Agnese Panozzo, Karen Vermeulen, Marc E. Hendrickx, Liesbet Thijs, Tara Grauwet. Importance of adapted digestion conditions to simulate in vitro lipid digestion of broilers in different life stages[J]. Animal Nutrition, 2023 , 12 (1) : 151 -158 . DOI: 10.1016/j.aninu.2022.09.008
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Year 2023 volume 12 Issue 1
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Article Info
doi: 10.1016/j.aninu.2022.09.008
  • Receive Date：2022-04-21
  • Online Date：2026-02-03
  • Published：2023-03-10
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History
  • Received：2022-04-21
  • Revised：2022-09-27
  • Accepted：2022-09-29
Affiliations
    aLaboratory of Food Technology and Leuven Food Science and Nutrition Research Centre (LFoRCe), Department of Microbial and Molecular Systems (M2 S), KU Leuven, Leuven, 3001, Belgium
    bKemin Animal Nutrition and Health, Kemin Europa N.V., Herentals, 2200, Belgium

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* Corresponding author. E-mail address: (D. Michels).
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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