Offering soybean molasses adsorbed to agricultural by‐products improved lactation performance through modulating plasma metabolic enzyme pool of lactating cows

Background Agricultural by‐products, such as corncob powder (CRP), wheat bran (WB), rice husk (RH), defatted bran (DB), and soybean hulls (SH), were widely used as ruminant feed. However, the combination effect of soybean molasses mixed with agricultural by‐products on cow lactating performance rema...

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Bibliographic Details
Published in:Food science & nutrition 2021-12, Vol.9 (12), p.6447-6457
Main Authors: Chen, Liang, Mi, Hui, Li, Bin, Liu, Yong, Zhou, Chuanshe, Ren, Ao, Tan, Zhiliang, Kong, Zhiwei, Fang, Rejun, Zhang, Ge
Format: Article
Language:English
Subjects:
Acetic acid
Amino acids
Ammonia
Animal fat
Animal lactation
Blood
blood metabolites
By products
Carbohydrate metabolism
Carbohydrates
Dairy cattle
Dairy industry
Diet
Enzymes
Experiments
Feeds
Fermentation
Gas production
Hulls
In vitro methods and tests
L-Lactate dehydrogenase
Lactate dehydrogenase
lactating dairy cow
Lactation
Lactic acid
Metabolism
Milk
Milk production
Molasses
Oil and gas production
Original Research
Phytochemicals
Propionic acid
Proteins
Rice
ruminal simulation
Simulation
Soybeans
Substrates
Sugar
Syrups & sweeteners
Transaminase
Wheat
Wheat bran
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Summary:Background Agricultural by‐products, such as corncob powder (CRP), wheat bran (WB), rice husk (RH), defatted bran (DB), and soybean hulls (SH), were widely used as ruminant feed. However, the combination effect of soybean molasses mixed with agricultural by‐products on cow lactating performance remains poorly understood. Methods In vitro fermentation simulation technique was used to select the high ruminal fermentation performance of agricultural by‐products mixed with soybean molasses. The selected mixtures were conducted to further explore the feeding effect on milk performance and blood metabolic enzyme on lactating dairy cows. Results In in vitro simulation, it was confirmed that SH‐SM showed better fermentation performance (including higher maximum gas production, acetate, propionate, and total VFA, but less initial fractional rate of degradation) than other four molasses‐adsorbents, while WB‐SM had the greatest DM and NDF disappearance and NH3‐N and butyrate concentrations among substrates. After the simulation selection, we performed the feed experiment with SH‐SM and WB‐SM compared to the control. For lactating performance, higher (p 
ISSN:2048-7177
2048-7177
DOI:10.1002/fsn3.2504