ArticleAnimal nutrition (Zhongguo xu mu shou yi xue hui)2025
Digestion kinetics of protein feed ingredients and their impact on nitrogen utilization in growing pigs.
Article in Animal nutrition (Zhongguo xu mu shou yi xue hui), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Blood-based biomarkers of protein digestibility, utilization, and nitrogen excretion in animals: Concepts, evidence, and applications.Veterinary and animal science · 2026Review
- Carbohydrate and protein adaptation in low-protein diets for livestock and poultry: a nutritional revolution from static balance to dynamic synergy.Journal of animal science and biotechnology · 2026Review
- Differential effects of dietary protein sources on nitrogen metabolism and ileal microbiota in pigs correlated with amino acid release rates.Journal of animal science and biotechnology · 2026Article
- Dynamic Changes in Amino Acid Release Patterns of Different Plant Protein Sources During In Vitro Digestion and Their Nutritional Value Assessment.Animals : an open access journal from MDPI · 2025Article
- Effects of Dietary Fiber Fermentation and Protein Digestion Properties on Growth Performance and Microbial Metabolites in Weaned Pigs.Animals : an open access journal from MDPI · 2025Article
Corrections and comments
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Authors and funding
9 authors.
Funding
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Abstract
The velocity of nitrogen release impacts nitrogen utilization efficiency and animal growth. Yet the crucial junctures linking nitrogen release and utilization from diverse feed ingredients to digestion kinetic parameters remain obscure. This study aimed to evaluate and subdivide in vitro protein digestion characteristics (such as release rate of free amino acids [FAA]) of three commonly used protein feed ingredients and to correlate the characteristics with nitrogen utilization in vivo. Ten soybean meals (SBM), eleven cottonseed meals (CM), and nine rapeseed meals (RM) were selected for in vitro study. After predigested for 120 min, the characteristics were evaluated within the small intestine stage. The release rate of total FAA from CM was significantly lower than SBM or RM during the fast-release phase (0 to 20 min). The total FAA release rate in SBM was substantially lower than others during the slow-release phase (20 to 140 min). In the in vivo experiment, cannulated growing barrows (
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